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circle{fill:var(--md-mermaid-label-bg-color)}.actor{fill:var(--md-mermaid-sequence-actor-bg-color);stroke:var(--md-mermaid-sequence-actor-border-color)}text.actor>tspan{fill:var(--md-mermaid-sequence-actor-fg-color);font-family:var(--md-mermaid-font-family)}line{stroke:var(--md-mermaid-sequence-actor-line-color)}.actor-man circle,.actor-man line{fill:var(--md-mermaid-sequence-actorman-bg-color);stroke:var(--md-mermaid-sequence-actorman-line-color)}.messageLine0,.messageLine1{stroke:var(--md-mermaid-sequence-message-line-color)}.note{fill:var(--md-mermaid-sequence-note-bg-color);stroke:var(--md-mermaid-sequence-note-border-color)}.loopText,.loopText>tspan,.messageText,.noteText>tspan{stroke:none;font-family:var(--md-mermaid-font-family)!important}.messageText{fill:var(--md-mermaid-sequence-message-fg-color)}.loopText,.loopText>tspan{fill:var(--md-mermaid-sequence-loop-fg-color)}.noteText>tspan{fill:var(--md-mermaid-sequence-note-fg-color)}#arrowhead 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I(...e).pipe(oe(o=>d(o,"change").pipe(m(()=>o))),Q(e[r]),m(o=>({index:e.indexOf(o),color:{media:o.getAttribute("data-md-color-media"),scheme:o.getAttribute("data-md-color-scheme"),primary:o.getAttribute("data-md-color-primary"),accent:o.getAttribute("data-md-color-accent")}})),B(1))}function Kn(e){let t=$("input",e),r=E("meta",{name:"theme-color"});document.head.appendChild(r);let o=E("meta",{name:"color-scheme"});document.head.appendChild(o);let n=$t("(prefers-color-scheme: light)");return C(()=>{let i=new g;return i.subscribe(a=>{if(document.body.setAttribute("data-md-color-switching",""),a.color.media==="(prefers-color-scheme)"){let s=matchMedia("(prefers-color-scheme: light)"),p=document.querySelector(s.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: 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Gr=Vt(Yr());function Ga(e){e.setAttribute("data-md-copying","");let t=e.closest("[data-copy]"),r=t?t.getAttribute("data-copy"):e.innerText;return e.removeAttribute("data-md-copying"),r.trimEnd()}function Bn({alert$:e}){Gr.default.isSupported()&&new F(t=>{new Gr.default("[data-clipboard-target], [data-clipboard-text]",{text:r=>r.getAttribute("data-clipboard-text")||Ga(P(r.getAttribute("data-clipboard-target")))}).on("success",r=>t.next(r))}).pipe(y(t=>{t.trigger.focus()}),m(()=>ye("clipboard.copied"))).subscribe(e)}function Gn(e,t){return e.protocol=t.protocol,e.hostname=t.hostname,e}function Ja(e,t){let r=new Map;for(let o of $("url",e)){let n=P("loc",o),i=[Gn(new URL(n.textContent),t)];r.set(`${i[0]}`,i);for(let a of $("[rel=alternate]",o)){let s=a.getAttribute("href");s!=null&&i.push(Gn(new URL(s),t))}}return r}function ur(e){return mn(new URL("sitemap.xml",e)).pipe(m(t=>Ja(t,new URL(e))),ve(()=>I(new Map)))}function Xa(e,t){if(!(e.target instanceof Element))return M;let 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g,o=r.pipe(X(),ne(!0));z([t.pipe(Ae(It)),r],(i,a)=>a).pipe(Z("value")).subscribe(({value:i})=>t.next({type:2,data:i})),r.pipe(Z("focus")).subscribe(({focus:i})=>{i&&Je("search",i)}),d(e.form,"reset").pipe(U(o)).subscribe(()=>e.focus());let n=P("header [for=__search]");return d(n,"click").subscribe(()=>e.focus()),ns(e,{worker$:t}).pipe(y(i=>r.next(i)),L(()=>r.complete()),m(i=>R({ref:e},i)),B(1))}function si(e,{worker$:t,query$:r}){let o=new g,n=tn(e.parentElement).pipe(b(Boolean)),i=e.parentElement,a=P(":scope > :first-child",e),s=P(":scope > :last-child",e);Ve("search").subscribe(l=>s.setAttribute("role",l?"list":"presentation")),o.pipe(ee(r),Ur(t.pipe(Ae(It)))).subscribe(([{items:l},{value:f}])=>{switch(l.length){case 0:a.textContent=f.length?ye("search.result.none"):ye("search.result.placeholder");break;case 1:a.textContent=ye("search.result.one");break;default:let u=sr(l.length);a.textContent=ye("search.result.other",u)}});let p=o.pipe(y(()=>s.innerHTML=""),v(({items:l})=>S(I(...l.slice(0,10)),I(...l.slice(10)).pipe(Ye(4),Vr(n),v(([f])=>f)))),m(Tn),pe());return p.subscribe(l=>s.appendChild(l)),p.pipe(oe(l=>{let f=fe("details",l);return typeof f=="undefined"?M:d(f,"toggle").pipe(U(o),m(()=>f))})).subscribe(l=>{l.open===!1&&l.offsetTop<=i.scrollTop&&i.scrollTo({top:l.offsetTop})}),t.pipe(b(dr),m(({data:l})=>l)).pipe(y(l=>o.next(l)),L(()=>o.complete()),m(l=>R({ref:e},l)))}function is(e,{query$:t}){return t.pipe(m(({value:r})=>{let o=xe();return o.hash="",r=r.replace(/\s+/g,"+").replace(/&/g,"%26").replace(/=/g,"%3D"),o.search=`q=${r}`,{url:o}}))}function ci(e,t){let r=new g,o=r.pipe(X(),ne(!0));return r.subscribe(({url:n})=>{e.setAttribute("data-clipboard-text",e.href),e.href=`${n}`}),d(e,"click").pipe(U(o)).subscribe(n=>n.preventDefault()),is(e,t).pipe(y(n=>r.next(n)),L(()=>r.complete()),m(n=>R({ref:e},n)))}function pi(e,{worker$:t,keyboard$:r}){let o=new g,n=Se("search-query"),i=S(d(n,"keydown"),d(n,"focus")).pipe(be(se),m(()=>n.value),K());return o.pipe(We(i),m(([{suggest:s},p])=>{let c=p.split(/([\s-]+)/);if(s!=null&&s.length&&c[c.length-1]){let l=s[s.length-1];l.startsWith(c[c.length-1])&&(c[c.length-1]=l)}else c.length=0;return c})).subscribe(s=>e.innerHTML=s.join("").replace(/\s/g," ")),r.pipe(b(({mode:s})=>s==="search")).subscribe(s=>{switch(s.type){case"ArrowRight":e.innerText.length&&n.selectionStart===n.value.length&&(n.value=e.innerText);break}}),t.pipe(b(dr),m(({data:s})=>s)).pipe(y(s=>o.next(s)),L(()=>o.complete()),m(()=>({ref:e})))}function li(e,{index$:t,keyboard$:r}){let o=Te();try{let n=ni(o.search,t),i=Se("search-query",e),a=Se("search-result",e);d(e,"click").pipe(b(({target:p})=>p instanceof Element&&!!p.closest("a"))).subscribe(()=>Je("search",!1)),r.pipe(b(({mode:p})=>p==="search")).subscribe(p=>{let c=Re();switch(p.type){case"Enter":if(c===i){let l=new Map;for(let f of $(":first-child [href]",a)){let 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z([t,r.pipe(Q(xe()),b(o=>!!o.searchParams.get("h")))]).pipe(m(([o,n])=>oi(o.config)(n.searchParams.get("h"))),m(o=>{var a;let n=new Map,i=document.createNodeIterator(e,NodeFilter.SHOW_TEXT);for(let s=i.nextNode();s;s=i.nextNode())if((a=s.parentElement)!=null&&a.offsetHeight){let p=s.textContent,c=o(p);c.length>p.length&&n.set(s,c)}for(let[s,p]of n){let{childNodes:c}=E("span",null,p);s.replaceWith(...Array.from(c))}return{ref:e,nodes:n}}))}function as(e,{viewport$:t,main$:r}){let o=e.closest(".md-grid"),n=o.offsetTop-o.parentElement.offsetTop;return z([r,t]).pipe(m(([{offset:i,height:a},{offset:{y:s}}])=>(a=a+Math.min(n,Math.max(0,s-i))-n,{height:a,locked:s>=i+n})),K((i,a)=>i.height===a.height&&i.locked===a.locked))}function Jr(e,o){var n=o,{header$:t}=n,r=io(n,["header$"]);let i=P(".md-sidebar__scrollwrap",e),{y:a}=Ue(i);return C(()=>{let s=new g,p=s.pipe(X(),ne(!0)),c=s.pipe(Le(0,me));return c.pipe(ee(t)).subscribe({next([{height:l},{height:f}]){i.style.height=`${l-2*a}px`,e.style.top=`${f}px`},complete(){i.style.height="",e.style.top=""}}),c.pipe(Ae()).subscribe(()=>{for(let l of $(".md-nav__link--active[href]",e)){if(!l.clientHeight)continue;let f=l.closest(".md-sidebar__scrollwrap");if(typeof f!="undefined"){let u=l.offsetTop-f.offsetTop,{height:h}=ce(f);f.scrollTo({top:u-h/2})}}}),ue($("label[tabindex]",e)).pipe(oe(l=>d(l,"click").pipe(be(se),m(()=>l),U(p)))).subscribe(l=>{let f=P(`[id="${l.htmlFor}"]`);P(`[aria-labelledby="${l.id}"]`).setAttribute("aria-expanded",`${f.checked}`)}),as(e,r).pipe(y(l=>s.next(l)),L(()=>s.complete()),m(l=>R({ref:e},l)))})}function fi(e,t){if(typeof t!="undefined"){let r=`https://api.github.com/repos/${e}/${t}`;return Ct(Ne(`${r}/releases/latest`).pipe(ve(()=>M),m(o=>({version:o.tag_name})),Be({})),Ne(r).pipe(ve(()=>M),m(o=>({stars:o.stargazers_count,forks:o.forks_count})),Be({}))).pipe(m(([o,n])=>R(R({},o),n)))}else{let r=`https://api.github.com/users/${e}`;return Ne(r).pipe(m(o=>({repositories:o.public_repos})),Be({}))}}function ui(e,t){let r=`https://${e}/api/v4/projects/${encodeURIComponent(t)}`;return Ne(r).pipe(ve(()=>M),m(({star_count:o,forks_count:n})=>({stars:o,forks:n})),Be({}))}function di(e){let t=e.match(/^.+github\.com\/([^/]+)\/?([^/]+)?/i);if(t){let[,r,o]=t;return fi(r,o)}if(t=e.match(/^.+?([^/]*gitlab[^/]+)\/(.+?)\/?$/i),t){let[,r,o]=t;return ui(r,o)}return M}var ss;function cs(e){return ss||(ss=C(()=>{let t=__md_get("__source",sessionStorage);if(t)return I(t);if(ae("consent").length){let o=__md_get("__consent");if(!(o&&o.github))return M}return di(e.href).pipe(y(o=>__md_set("__source",o,sessionStorage)))}).pipe(ve(()=>M),b(t=>Object.keys(t).length>0),m(t=>({facts:t})),B(1)))}function hi(e){let t=P(":scope > :last-child",e);return C(()=>{let r=new g;return 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n.title=o,pt(n,{viewport$:t}).pipe(U(e.pipe(Ce(1))),L(()=>n.removeAttribute("title")))})).subscribe(),e.pipe(v(()=>$(".md-status")),oe(r=>pt(r,{viewport$:t}))).subscribe()}function yi({document$:e,tablet$:t}){e.pipe(v(()=>$(".md-toggle--indeterminate")),y(r=>{r.indeterminate=!0,r.checked=!1}),oe(r=>d(r,"change").pipe(Dr(()=>r.classList.contains("md-toggle--indeterminate")),m(()=>r))),ee(t)).subscribe(([r,o])=>{r.classList.remove("md-toggle--indeterminate"),o&&(r.checked=!1)})}function fs(){return/(iPad|iPhone|iPod)/.test(navigator.userAgent)}function Ei({document$:e}){e.pipe(v(()=>$("[data-md-scrollfix]")),y(t=>t.removeAttribute("data-md-scrollfix")),b(fs),oe(t=>d(t,"touchstart").pipe(m(()=>t)))).subscribe(t=>{let r=t.scrollTop;r===0?t.scrollTop=1:r+t.offsetHeight===t.scrollHeight&&(t.scrollTop=r-1)})}function wi({viewport$:e,tablet$:t}){z([Ve("search"),t]).pipe(m(([r,o])=>r&&!o),v(r=>I(r).pipe(Ge(r?400:100))),ee(e)).subscribe(([r,{offset:{y:o}}])=>{if(r)document.body.setAttribute("data-md-scrolllock",""),document.body.style.top=`-${o}px`;else{let n=-1*parseInt(document.body.style.top,10);document.body.removeAttribute("data-md-scrolllock"),document.body.style.top="",n&&window.scrollTo(0,n)}})}Object.entries||(Object.entries=function(e){let t=[];for(let r of Object.keys(e))t.push([r,e[r]]);return t});Object.values||(Object.values=function(e){let t=[];for(let r of Object.keys(e))t.push(e[r]);return t});typeof Element!="undefined"&&(Element.prototype.scrollTo||(Element.prototype.scrollTo=function(e,t){typeof e=="object"?(this.scrollLeft=e.left,this.scrollTop=e.top):(this.scrollLeft=e,this.scrollTop=t)}),Element.prototype.replaceWith||(Element.prototype.replaceWith=function(...e){let t=this.parentNode;if(t){e.length===0&&t.removeChild(this);for(let r=e.length-1;r>=0;r--){let o=e[r];typeof o=="string"?o=document.createTextNode(o):o.parentNode&&o.parentNode.removeChild(o),r?t.insertBefore(this.previousSibling,o):t.replaceChild(o,this)}}}));function us(){return location.protocol==="file:"?Et(`${new URL("search/search_index.js",Xr.base)}`).pipe(m(()=>__index),B(1)):Ne(new URL("search/search_index.json",Xr.base))}document.documentElement.classList.remove("no-js");document.documentElement.classList.add("js");var rt=Yo(),jt=nn(),Ot=cn(jt),Zr=on(),Oe=bn(),hr=$t("(min-width: 960px)"),Si=$t("(min-width: 1220px)"),Oi=pn(),Xr=Te(),Mi=document.forms.namedItem("search")?us():Ke,eo=new g;Bn({alert$:eo});var to=new g;G("navigation.instant")&&Zn({location$:jt,viewport$:Oe,progress$:to}).subscribe(rt);var Ti;((Ti=Xr.version)==null?void 0:Ti.provider)==="mike"&&ii({document$:rt});S(jt,Ot).pipe(Ge(125)).subscribe(()=>{Je("drawer",!1),Je("search",!1)});Zr.pipe(b(({mode:e})=>e==="global")).subscribe(e=>{switch(e.type){case"p":case",":let t=fe("link[rel=prev]");typeof t!="undefined"&&ct(t);break;case"n":case".":let r=fe("link[rel=next]");typeof r!="undefined"&&ct(r);break;case"Enter":let o=Re();o instanceof HTMLLabelElement&&o.click()}});xi({viewport$:Oe,document$:rt});yi({document$:rt,tablet$:hr});Ei({document$:rt});wi({viewport$:Oe,tablet$:hr});var tt=Nn(Se("header"),{viewport$:Oe}),Ft=rt.pipe(m(()=>Se("main")),v(e=>Qn(e,{viewport$:Oe,header$:tt})),B(1)),ds=S(...ae("consent").map(e=>xn(e,{target$:Ot})),...ae("dialog").map(e=>Dn(e,{alert$:eo})),...ae("header").map(e=>zn(e,{viewport$:Oe,header$:tt,main$:Ft})),...ae("palette").map(e=>Kn(e)),...ae("progress").map(e=>Yn(e,{progress$:to})),...ae("search").map(e=>li(e,{index$:Mi,keyboard$:Zr})),...ae("source").map(e=>hi(e))),hs=C(()=>S(...ae("announce").map(e=>gn(e)),...ae("content").map(e=>Un(e,{viewport$:Oe,target$:Ot,print$:Oi})),...ae("content").map(e=>G("search.highlight")?mi(e,{index$:Mi,location$:jt}):M),...ae("header-title").map(e=>qn(e,{viewport$:Oe,header$:tt})),...ae("sidebar").map(e=>e.getAttribute("data-md-type")==="navigation"?Nr(Si,()=>Jr(e,{viewport$:Oe,header$:tt,main$:Ft})):Nr(hr,()=>Jr(e,{viewport$:Oe,header$:tt,main$:Ft}))),...ae("tabs").map(e=>bi(e,{viewport$:Oe,header$:tt})),...ae("toc").map(e=>vi(e,{viewport$:Oe,header$:tt,main$:Ft,target$:Ot})),...ae("top").map(e=>gi(e,{viewport$:Oe,header$:tt,main$:Ft,target$:Ot})))),Li=rt.pipe(v(()=>hs),Pe(ds),B(1));Li.subscribe();window.document$=rt;window.location$=jt;window.target$=Ot;window.keyboard$=Zr;window.viewport$=Oe;window.tablet$=hr;window.screen$=Si;window.print$=Oi;window.alert$=eo;window.progress$=to;window.component$=Li;})(); 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"src/templates/assets/javascripts/components/search/_/index.ts", "src/templates/assets/javascripts/components/search/highlight/index.ts", "src/templates/assets/javascripts/components/sidebar/index.ts", "src/templates/assets/javascripts/components/source/facts/github/index.ts", "src/templates/assets/javascripts/components/source/facts/gitlab/index.ts", "src/templates/assets/javascripts/components/source/facts/_/index.ts", "src/templates/assets/javascripts/components/source/_/index.ts", "src/templates/assets/javascripts/components/tabs/index.ts", "src/templates/assets/javascripts/components/toc/index.ts", "src/templates/assets/javascripts/components/top/index.ts", "src/templates/assets/javascripts/patches/ellipsis/index.ts", "src/templates/assets/javascripts/patches/indeterminate/index.ts", "src/templates/assets/javascripts/patches/scrollfix/index.ts", "src/templates/assets/javascripts/patches/scrolllock/index.ts", "src/templates/assets/javascripts/polyfills/index.ts"], + "sourcesContent": ["(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n (factory());\n}(this, (function () { 'use strict';\n\n /**\n * Applies the :focus-visible polyfill at the given scope.\n * A scope in this case is either the top-level Document or a Shadow Root.\n *\n * @param {(Document|ShadowRoot)} scope\n * @see https://github.com/WICG/focus-visible\n */\n function applyFocusVisiblePolyfill(scope) {\n var hadKeyboardEvent = true;\n var hadFocusVisibleRecently = false;\n var hadFocusVisibleRecentlyTimeout = null;\n\n var inputTypesAllowlist = {\n text: true,\n search: true,\n url: true,\n tel: true,\n email: true,\n password: true,\n number: true,\n date: true,\n month: true,\n week: true,\n time: true,\n datetime: true,\n 'datetime-local': true\n };\n\n /**\n * Helper function for legacy browsers and iframes which sometimes focus\n * elements like document, body, and non-interactive SVG.\n * @param {Element} el\n */\n function isValidFocusTarget(el) {\n if (\n el &&\n el !== document &&\n el.nodeName !== 'HTML' &&\n el.nodeName !== 'BODY' &&\n 'classList' in el &&\n 'contains' in el.classList\n ) {\n return true;\n }\n return false;\n }\n\n /**\n * Computes whether the given element should automatically trigger the\n * `focus-visible` class being added, i.e. whether it should always match\n * `:focus-visible` when focused.\n * @param {Element} el\n * @return {boolean}\n */\n function focusTriggersKeyboardModality(el) {\n var type = el.type;\n var tagName = el.tagName;\n\n if (tagName === 'INPUT' && inputTypesAllowlist[type] && !el.readOnly) {\n return true;\n }\n\n if (tagName === 'TEXTAREA' && !el.readOnly) {\n return true;\n }\n\n if (el.isContentEditable) {\n return true;\n }\n\n return false;\n }\n\n /**\n * Add the `focus-visible` class to the given element if it was not added by\n * the author.\n * @param {Element} el\n */\n function addFocusVisibleClass(el) {\n if (el.classList.contains('focus-visible')) {\n return;\n }\n el.classList.add('focus-visible');\n el.setAttribute('data-focus-visible-added', '');\n }\n\n /**\n * Remove the `focus-visible` class from the given element if it was not\n * originally added by the author.\n * @param {Element} el\n */\n function removeFocusVisibleClass(el) {\n if (!el.hasAttribute('data-focus-visible-added')) {\n return;\n }\n el.classList.remove('focus-visible');\n el.removeAttribute('data-focus-visible-added');\n }\n\n /**\n * If the most recent user interaction was via the keyboard;\n * and the key press did not include a meta, alt/option, or control key;\n * then the modality is keyboard. Otherwise, the modality is not keyboard.\n * Apply `focus-visible` to any current active element and keep track\n * of our keyboard modality state with `hadKeyboardEvent`.\n * @param {KeyboardEvent} e\n */\n function onKeyDown(e) {\n if (e.metaKey || e.altKey || e.ctrlKey) {\n return;\n }\n\n if (isValidFocusTarget(scope.activeElement)) {\n addFocusVisibleClass(scope.activeElement);\n }\n\n hadKeyboardEvent = true;\n }\n\n /**\n * If at any point a user clicks with a pointing device, ensure that we change\n * the modality away from keyboard.\n * This avoids the situation where a user presses a key on an already focused\n * element, and then clicks on a different element, focusing it with a\n * pointing device, while we still think we're in keyboard modality.\n * @param {Event} e\n */\n function onPointerDown(e) {\n hadKeyboardEvent = false;\n }\n\n /**\n * On `focus`, add the `focus-visible` class to the target if:\n * - the target received focus as a result of keyboard navigation, or\n * - the event target is an element that will likely require interaction\n * via the keyboard (e.g. a text box)\n * @param {Event} e\n */\n function onFocus(e) {\n // Prevent IE from focusing the document or HTML element.\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (hadKeyboardEvent || focusTriggersKeyboardModality(e.target)) {\n addFocusVisibleClass(e.target);\n }\n }\n\n /**\n * On `blur`, remove the `focus-visible` class from the target.\n * @param {Event} e\n */\n function onBlur(e) {\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (\n e.target.classList.contains('focus-visible') ||\n e.target.hasAttribute('data-focus-visible-added')\n ) {\n // To detect a tab/window switch, we look for a blur event followed\n // rapidly by a visibility change.\n // If we don't see a visibility change within 100ms, it's probably a\n // regular focus change.\n hadFocusVisibleRecently = true;\n window.clearTimeout(hadFocusVisibleRecentlyTimeout);\n hadFocusVisibleRecentlyTimeout = window.setTimeout(function() {\n hadFocusVisibleRecently = false;\n }, 100);\n removeFocusVisibleClass(e.target);\n }\n }\n\n /**\n * If the user changes tabs, keep track of whether or not the previously\n * focused element had .focus-visible.\n * @param {Event} e\n */\n function onVisibilityChange(e) {\n if (document.visibilityState === 'hidden') {\n // If the tab becomes active again, the browser will handle calling focus\n // on the element (Safari actually calls it twice).\n // If this tab change caused a blur on an element with focus-visible,\n // re-apply the class when the user switches back to the tab.\n if (hadFocusVisibleRecently) {\n hadKeyboardEvent = true;\n }\n addInitialPointerMoveListeners();\n }\n }\n\n /**\n * Add a group of listeners to detect usage of any pointing devices.\n * These listeners will be added when the polyfill first loads, and anytime\n * the window is blurred, so that they are active when the window regains\n * focus.\n */\n function addInitialPointerMoveListeners() {\n document.addEventListener('mousemove', onInitialPointerMove);\n document.addEventListener('mousedown', onInitialPointerMove);\n document.addEventListener('mouseup', onInitialPointerMove);\n document.addEventListener('pointermove', onInitialPointerMove);\n document.addEventListener('pointerdown', onInitialPointerMove);\n document.addEventListener('pointerup', onInitialPointerMove);\n document.addEventListener('touchmove', onInitialPointerMove);\n document.addEventListener('touchstart', onInitialPointerMove);\n document.addEventListener('touchend', onInitialPointerMove);\n }\n\n function removeInitialPointerMoveListeners() {\n document.removeEventListener('mousemove', onInitialPointerMove);\n document.removeEventListener('mousedown', onInitialPointerMove);\n document.removeEventListener('mouseup', onInitialPointerMove);\n document.removeEventListener('pointermove', onInitialPointerMove);\n document.removeEventListener('pointerdown', onInitialPointerMove);\n document.removeEventListener('pointerup', onInitialPointerMove);\n document.removeEventListener('touchmove', onInitialPointerMove);\n document.removeEventListener('touchstart', onInitialPointerMove);\n document.removeEventListener('touchend', onInitialPointerMove);\n }\n\n /**\n * When the polfyill first loads, assume the user is in keyboard modality.\n * If any event is received from a pointing device (e.g. mouse, pointer,\n * touch), turn off keyboard modality.\n * This accounts for situations where focus enters the page from the URL bar.\n * @param {Event} e\n */\n function onInitialPointerMove(e) {\n // Work around a Safari quirk that fires a mousemove on whenever the\n // window blurs, even if you're tabbing out of the page. \u00AF\\_(\u30C4)_/\u00AF\n if (e.target.nodeName && e.target.nodeName.toLowerCase() === 'html') {\n return;\n }\n\n hadKeyboardEvent = false;\n removeInitialPointerMoveListeners();\n }\n\n // For some kinds of state, we are interested in changes at the global scope\n // only. For example, global pointer input, global key presses and global\n // visibility change should affect the state at every scope:\n document.addEventListener('keydown', onKeyDown, true);\n document.addEventListener('mousedown', onPointerDown, true);\n document.addEventListener('pointerdown', onPointerDown, true);\n document.addEventListener('touchstart', onPointerDown, true);\n document.addEventListener('visibilitychange', onVisibilityChange, true);\n\n addInitialPointerMoveListeners();\n\n // For focus and blur, we specifically care about state changes in the local\n // scope. This is because focus / blur events that originate from within a\n // shadow root are not re-dispatched from the host element if it was already\n // the active element in its own scope:\n scope.addEventListener('focus', onFocus, true);\n scope.addEventListener('blur', onBlur, true);\n\n // We detect that a node is a ShadowRoot by ensuring that it is a\n // DocumentFragment and also has a host property. This check covers native\n // implementation and polyfill implementation transparently. If we only cared\n // about the native implementation, we could just check if the scope was\n // an instance of a ShadowRoot.\n if (scope.nodeType === Node.DOCUMENT_FRAGMENT_NODE && scope.host) {\n // Since a ShadowRoot is a special kind of DocumentFragment, it does not\n // have a root element to add a class to. So, we add this attribute to the\n // host element instead:\n scope.host.setAttribute('data-js-focus-visible', '');\n } else if (scope.nodeType === Node.DOCUMENT_NODE) {\n document.documentElement.classList.add('js-focus-visible');\n document.documentElement.setAttribute('data-js-focus-visible', '');\n }\n }\n\n // It is important to wrap all references to global window and document in\n // these checks to support server-side rendering use cases\n // @see https://github.com/WICG/focus-visible/issues/199\n if (typeof window !== 'undefined' && typeof document !== 'undefined') {\n // Make the polyfill helper globally available. This can be used as a signal\n // to interested libraries that wish to coordinate with the polyfill for e.g.,\n // applying the polyfill to a shadow root:\n window.applyFocusVisiblePolyfill = applyFocusVisiblePolyfill;\n\n // Notify interested libraries of the polyfill's presence, in case the\n // polyfill was loaded lazily:\n var event;\n\n try {\n event = new CustomEvent('focus-visible-polyfill-ready');\n } catch (error) {\n // IE11 does not support using CustomEvent as a constructor directly:\n event = document.createEvent('CustomEvent');\n event.initCustomEvent('focus-visible-polyfill-ready', false, false, {});\n }\n\n window.dispatchEvent(event);\n }\n\n if (typeof document !== 'undefined') {\n // Apply the polyfill to the global document, so that no JavaScript\n // coordination is required to use the polyfill in the top-level document:\n applyFocusVisiblePolyfill(document);\n }\n\n})));\n", "/*!\n * clipboard.js v2.0.11\n * https://clipboardjs.com/\n *\n * Licensed MIT \u00A9 Zeno Rocha\n */\n(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"ClipboardJS\"] = factory();\n\telse\n\t\troot[\"ClipboardJS\"] = factory();\n})(this, function() {\nreturn /******/ (function() { // webpackBootstrap\n/******/ \tvar __webpack_modules__ = ({\n\n/***/ 686:\n/***/ (function(__unused_webpack_module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n\n// EXPORTS\n__webpack_require__.d(__webpack_exports__, {\n \"default\": function() { return /* binding */ clipboard; }\n});\n\n// EXTERNAL MODULE: ./node_modules/tiny-emitter/index.js\nvar tiny_emitter = __webpack_require__(279);\nvar tiny_emitter_default = /*#__PURE__*/__webpack_require__.n(tiny_emitter);\n// EXTERNAL MODULE: ./node_modules/good-listener/src/listen.js\nvar listen = __webpack_require__(370);\nvar listen_default = /*#__PURE__*/__webpack_require__.n(listen);\n// EXTERNAL MODULE: ./node_modules/select/src/select.js\nvar src_select = __webpack_require__(817);\nvar select_default = /*#__PURE__*/__webpack_require__.n(src_select);\n;// CONCATENATED MODULE: ./src/common/command.js\n/**\n * Executes a given operation type.\n * @param {String} type\n * @return {Boolean}\n */\nfunction command(type) {\n try {\n return document.execCommand(type);\n } catch (err) {\n return false;\n }\n}\n;// CONCATENATED MODULE: ./src/actions/cut.js\n\n\n/**\n * Cut action wrapper.\n * @param {String|HTMLElement} target\n * @return {String}\n */\n\nvar ClipboardActionCut = function ClipboardActionCut(target) {\n var selectedText = select_default()(target);\n command('cut');\n return selectedText;\n};\n\n/* harmony default export */ var actions_cut = (ClipboardActionCut);\n;// CONCATENATED MODULE: ./src/common/create-fake-element.js\n/**\n * Creates a fake textarea element with a value.\n * @param {String} value\n * @return {HTMLElement}\n */\nfunction createFakeElement(value) {\n var isRTL = document.documentElement.getAttribute('dir') === 'rtl';\n var fakeElement = document.createElement('textarea'); // Prevent zooming on iOS\n\n fakeElement.style.fontSize = '12pt'; // Reset box model\n\n fakeElement.style.border = '0';\n fakeElement.style.padding = '0';\n fakeElement.style.margin = '0'; // Move element out of screen horizontally\n\n fakeElement.style.position = 'absolute';\n fakeElement.style[isRTL ? 'right' : 'left'] = '-9999px'; // Move element to the same position vertically\n\n var yPosition = window.pageYOffset || document.documentElement.scrollTop;\n fakeElement.style.top = \"\".concat(yPosition, \"px\");\n fakeElement.setAttribute('readonly', '');\n fakeElement.value = value;\n return fakeElement;\n}\n;// CONCATENATED MODULE: ./src/actions/copy.js\n\n\n\n/**\n * Create fake copy action wrapper using a fake element.\n * @param {String} target\n * @param {Object} options\n * @return {String}\n */\n\nvar fakeCopyAction = function fakeCopyAction(value, options) {\n var fakeElement = createFakeElement(value);\n options.container.appendChild(fakeElement);\n var selectedText = select_default()(fakeElement);\n command('copy');\n fakeElement.remove();\n return selectedText;\n};\n/**\n * Copy action wrapper.\n * @param {String|HTMLElement} target\n * @param {Object} options\n * @return {String}\n */\n\n\nvar ClipboardActionCopy = function ClipboardActionCopy(target) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {\n container: document.body\n };\n var selectedText = '';\n\n if (typeof target === 'string') {\n selectedText = fakeCopyAction(target, options);\n } else if (target instanceof HTMLInputElement && !['text', 'search', 'url', 'tel', 'password'].includes(target === null || target === void 0 ? void 0 : target.type)) {\n // If input type doesn't support `setSelectionRange`. Simulate it. https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/setSelectionRange\n selectedText = fakeCopyAction(target.value, options);\n } else {\n selectedText = select_default()(target);\n command('copy');\n }\n\n return selectedText;\n};\n\n/* harmony default export */ var actions_copy = (ClipboardActionCopy);\n;// CONCATENATED MODULE: ./src/actions/default.js\nfunction _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\n\n\n/**\n * Inner function which performs selection from either `text` or `target`\n * properties and then executes copy or cut operations.\n * @param {Object} options\n */\n\nvar ClipboardActionDefault = function ClipboardActionDefault() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n // Defines base properties passed from constructor.\n var _options$action = options.action,\n action = _options$action === void 0 ? 'copy' : _options$action,\n container = options.container,\n target = options.target,\n text = options.text; // Sets the `action` to be performed which can be either 'copy' or 'cut'.\n\n if (action !== 'copy' && action !== 'cut') {\n throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n } // Sets the `target` property using an element that will be have its content copied.\n\n\n if (target !== undefined) {\n if (target && _typeof(target) === 'object' && target.nodeType === 1) {\n if (action === 'copy' && target.hasAttribute('disabled')) {\n throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n }\n\n if (action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n }\n } else {\n throw new Error('Invalid \"target\" value, use a valid Element');\n }\n } // Define selection strategy based on `text` property.\n\n\n if (text) {\n return actions_copy(text, {\n container: container\n });\n } // Defines which selection strategy based on `target` property.\n\n\n if (target) {\n return action === 'cut' ? actions_cut(target) : actions_copy(target, {\n container: container\n });\n }\n};\n\n/* harmony default export */ var actions_default = (ClipboardActionDefault);\n;// CONCATENATED MODULE: ./src/clipboard.js\nfunction clipboard_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { clipboard_typeof = function _typeof(obj) { return typeof obj; }; } else { clipboard_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return clipboard_typeof(obj); }\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }\n\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\n\nfunction _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }\n\nfunction _possibleConstructorReturn(self, call) { if (call && (clipboard_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } return _assertThisInitialized(self); }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }\n\n\n\n\n\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\nfunction getAttributeValue(suffix, element) {\n var attribute = \"data-clipboard-\".concat(suffix);\n\n if (!element.hasAttribute(attribute)) {\n return;\n }\n\n return element.getAttribute(attribute);\n}\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\n\nvar Clipboard = /*#__PURE__*/function (_Emitter) {\n _inherits(Clipboard, _Emitter);\n\n var _super = _createSuper(Clipboard);\n\n /**\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n * @param {Object} options\n */\n function Clipboard(trigger, options) {\n var _this;\n\n _classCallCheck(this, Clipboard);\n\n _this = _super.call(this);\n\n _this.resolveOptions(options);\n\n _this.listenClick(trigger);\n\n return _this;\n }\n /**\n * Defines if attributes would be resolved using internal setter functions\n * or custom functions that were passed in the constructor.\n * @param {Object} options\n */\n\n\n _createClass(Clipboard, [{\n key: \"resolveOptions\",\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n }\n /**\n * Adds a click event listener to the passed trigger.\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n */\n\n }, {\n key: \"listenClick\",\n value: function listenClick(trigger) {\n var _this2 = this;\n\n this.listener = listen_default()(trigger, 'click', function (e) {\n return _this2.onClick(e);\n });\n }\n /**\n * Defines a new `ClipboardAction` on each click event.\n * @param {Event} e\n */\n\n }, {\n key: \"onClick\",\n value: function onClick(e) {\n var trigger = e.delegateTarget || e.currentTarget;\n var action = this.action(trigger) || 'copy';\n var text = actions_default({\n action: action,\n container: this.container,\n target: this.target(trigger),\n text: this.text(trigger)\n }); // Fires an event based on the copy operation result.\n\n this.emit(text ? 'success' : 'error', {\n action: action,\n text: text,\n trigger: trigger,\n clearSelection: function clearSelection() {\n if (trigger) {\n trigger.focus();\n }\n\n window.getSelection().removeAllRanges();\n }\n });\n }\n /**\n * Default `action` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultAction\",\n value: function defaultAction(trigger) {\n return getAttributeValue('action', trigger);\n }\n /**\n * Default `target` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultTarget\",\n value: function defaultTarget(trigger) {\n var selector = getAttributeValue('target', trigger);\n\n if (selector) {\n return document.querySelector(selector);\n }\n }\n /**\n * Allow fire programmatically a copy action\n * @param {String|HTMLElement} target\n * @param {Object} options\n * @returns Text copied.\n */\n\n }, {\n key: \"defaultText\",\n\n /**\n * Default `text` lookup function.\n * @param {Element} trigger\n */\n value: function defaultText(trigger) {\n return getAttributeValue('text', trigger);\n }\n /**\n * Destroy lifecycle.\n */\n\n }, {\n key: \"destroy\",\n value: function destroy() {\n this.listener.destroy();\n }\n }], [{\n key: \"copy\",\n value: function copy(target) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {\n container: document.body\n };\n return actions_copy(target, options);\n }\n /**\n * Allow fire programmatically a cut action\n * @param {String|HTMLElement} target\n * @returns Text cutted.\n */\n\n }, {\n key: \"cut\",\n value: function cut(target) {\n return actions_cut(target);\n }\n /**\n * Returns the support of the given action, or all actions if no action is\n * given.\n * @param {String} [action]\n */\n\n }, {\n key: \"isSupported\",\n value: function isSupported() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n var actions = typeof action === 'string' ? [action] : action;\n var support = !!document.queryCommandSupported;\n actions.forEach(function (action) {\n support = support && !!document.queryCommandSupported(action);\n });\n return support;\n }\n }]);\n\n return Clipboard;\n}((tiny_emitter_default()));\n\n/* harmony default export */ var clipboard = (Clipboard);\n\n/***/ }),\n\n/***/ 828:\n/***/ (function(module) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n var proto = Element.prototype;\n\n proto.matches = proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n if (typeof element.matches === 'function' &&\n element.matches(selector)) {\n return element;\n }\n element = element.parentNode;\n }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n\n/***/ 438:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar closest = __webpack_require__(828);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n var listenerFn = listener.apply(this, arguments);\n\n element.addEventListener(type, listenerFn, useCapture);\n\n return {\n destroy: function() {\n element.removeEventListener(type, listenerFn, useCapture);\n }\n }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n // Handle the regular Element usage\n if (typeof elements.addEventListener === 'function') {\n return _delegate.apply(null, arguments);\n }\n\n // Handle Element-less usage, it defaults to global delegation\n if (typeof type === 'function') {\n // Use `document` as the first parameter, then apply arguments\n // This is a short way to .unshift `arguments` without running into deoptimizations\n return _delegate.bind(null, document).apply(null, arguments);\n }\n\n // Handle Selector-based usage\n if (typeof elements === 'string') {\n elements = document.querySelectorAll(elements);\n }\n\n // Handle Array-like based usage\n return Array.prototype.map.call(elements, function (element) {\n return _delegate(element, selector, type, callback, useCapture);\n });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n return function(e) {\n e.delegateTarget = closest(e.target, selector);\n\n if (e.delegateTarget) {\n callback.call(element, e);\n }\n }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n\n/***/ 879:\n/***/ (function(__unused_webpack_module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n return value !== undefined\n && value instanceof HTMLElement\n && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return value !== undefined\n && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n && ('length' in value)\n && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n return typeof value === 'string'\n || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return type === '[object Function]';\n};\n\n\n/***/ }),\n\n/***/ 370:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar is = __webpack_require__(879);\nvar delegate = __webpack_require__(438);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n if (!target && !type && !callback) {\n throw new Error('Missing required arguments');\n }\n\n if (!is.string(type)) {\n throw new TypeError('Second argument must be a String');\n }\n\n if (!is.fn(callback)) {\n throw new TypeError('Third argument must be a Function');\n }\n\n if (is.node(target)) {\n return listenNode(target, type, callback);\n }\n else if (is.nodeList(target)) {\n return listenNodeList(target, type, callback);\n }\n else if (is.string(target)) {\n return listenSelector(target, type, callback);\n }\n else {\n throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n node.addEventListener(type, callback);\n\n return {\n destroy: function() {\n node.removeEventListener(type, callback);\n }\n }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.addEventListener(type, callback);\n });\n\n return {\n destroy: function() {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.removeEventListener(type, callback);\n });\n }\n }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n\n/***/ 817:\n/***/ (function(module) {\n\nfunction select(element) {\n var selectedText;\n\n if (element.nodeName === 'SELECT') {\n element.focus();\n\n selectedText = element.value;\n }\n else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n var isReadOnly = element.hasAttribute('readonly');\n\n if (!isReadOnly) {\n element.setAttribute('readonly', '');\n }\n\n element.select();\n element.setSelectionRange(0, element.value.length);\n\n if (!isReadOnly) {\n element.removeAttribute('readonly');\n }\n\n selectedText = element.value;\n }\n else {\n if (element.hasAttribute('contenteditable')) {\n element.focus();\n }\n\n var selection = window.getSelection();\n var range = document.createRange();\n\n range.selectNodeContents(element);\n selection.removeAllRanges();\n selection.addRange(range);\n\n selectedText = selection.toString();\n }\n\n return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n\n/***/ 279:\n/***/ (function(module) {\n\nfunction E () {\n // Keep this empty so it's easier to inherit from\n // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n on: function (name, callback, ctx) {\n var e = this.e || (this.e = {});\n\n (e[name] || (e[name] = [])).push({\n fn: callback,\n ctx: ctx\n });\n\n return this;\n },\n\n once: function (name, callback, ctx) {\n var self = this;\n function listener () {\n self.off(name, listener);\n callback.apply(ctx, arguments);\n };\n\n listener._ = callback\n return this.on(name, listener, ctx);\n },\n\n emit: function (name) {\n var data = [].slice.call(arguments, 1);\n var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n var i = 0;\n var len = evtArr.length;\n\n for (i; i < len; i++) {\n evtArr[i].fn.apply(evtArr[i].ctx, data);\n }\n\n return this;\n },\n\n off: function (name, callback) {\n var e = this.e || (this.e = {});\n var evts = e[name];\n var liveEvents = [];\n\n if (evts && callback) {\n for (var i = 0, len = evts.length; i < len; i++) {\n if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n liveEvents.push(evts[i]);\n }\n }\n\n // Remove event from queue to prevent memory leak\n // Suggested by https://github.com/lazd\n // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n (liveEvents.length)\n ? e[name] = liveEvents\n : delete e[name];\n\n return this;\n }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ })\n\n/******/ \t});\n/************************************************************************/\n/******/ \t// The module cache\n/******/ \tvar __webpack_module_cache__ = {};\n/******/ \t\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(__webpack_module_cache__[moduleId]) {\n/******/ \t\t\treturn __webpack_module_cache__[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = __webpack_module_cache__[moduleId] = {\n/******/ \t\t\t// no module.id needed\n/******/ \t\t\t// no module.loaded needed\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/ \t\n/******/ \t\t// Execute the module function\n/******/ \t\t__webpack_modules__[moduleId](module, module.exports, __webpack_require__);\n/******/ \t\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/ \t\n/************************************************************************/\n/******/ \t/* webpack/runtime/compat get default export */\n/******/ \t!function() {\n/******/ \t\t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t\t__webpack_require__.n = function(module) {\n/******/ \t\t\tvar getter = module && module.__esModule ?\n/******/ \t\t\t\tfunction() { return module['default']; } :\n/******/ \t\t\t\tfunction() { return module; };\n/******/ \t\t\t__webpack_require__.d(getter, { a: getter });\n/******/ \t\t\treturn getter;\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/define property getters */\n/******/ \t!function() {\n/******/ \t\t// define getter functions for harmony exports\n/******/ \t\t__webpack_require__.d = function(exports, definition) {\n/******/ \t\t\tfor(var key in definition) {\n/******/ \t\t\t\tif(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {\n/******/ \t\t\t\t\tObject.defineProperty(exports, key, { enumerable: true, get: definition[key] });\n/******/ \t\t\t\t}\n/******/ \t\t\t}\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/hasOwnProperty shorthand */\n/******/ \t!function() {\n/******/ \t\t__webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }\n/******/ \t}();\n/******/ \t\n/************************************************************************/\n/******/ \t// module exports must be returned from runtime so entry inlining is disabled\n/******/ \t// startup\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(686);\n/******/ })()\n.default;\n});", "/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n", "/*\n * Copyright (c) 2016-2024 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport \"focus-visible\"\n\nimport {\n EMPTY,\n NEVER,\n Observable,\n Subject,\n defer,\n delay,\n filter,\n map,\n merge,\n mergeWith,\n shareReplay,\n switchMap\n} from \"rxjs\"\n\nimport { configuration, feature } from \"./_\"\nimport {\n at,\n getActiveElement,\n getOptionalElement,\n requestJSON,\n setLocation,\n setToggle,\n watchDocument,\n watchKeyboard,\n watchLocation,\n watchLocationTarget,\n watchMedia,\n watchPrint,\n watchScript,\n watchViewport\n} from \"./browser\"\nimport {\n getComponentElement,\n getComponentElements,\n mountAnnounce,\n mountBackToTop,\n mountConsent,\n mountContent,\n mountDialog,\n mountHeader,\n mountHeaderTitle,\n mountPalette,\n mountProgress,\n mountSearch,\n mountSearchHiglight,\n mountSidebar,\n mountSource,\n mountTableOfContents,\n mountTabs,\n watchHeader,\n watchMain\n} from \"./components\"\nimport {\n SearchIndex,\n setupClipboardJS,\n setupInstantNavigation,\n setupVersionSelector\n} from \"./integrations\"\nimport {\n patchEllipsis,\n patchIndeterminate,\n patchScrollfix,\n patchScrolllock\n} from \"./patches\"\nimport \"./polyfills\"\n\n/* ----------------------------------------------------------------------------\n * Functions - @todo refactor\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch search index\n *\n * @returns Search index observable\n */\nfunction fetchSearchIndex(): Observable {\n if (location.protocol === \"file:\") {\n return watchScript(\n `${new URL(\"search/search_index.js\", config.base)}`\n )\n .pipe(\n // @ts-ignore - @todo fix typings\n map(() => __index),\n shareReplay(1)\n )\n } else {\n return requestJSON(\n new URL(\"search/search_index.json\", config.base)\n )\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Application\n * ------------------------------------------------------------------------- */\n\n/* Yay, JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Set up navigation observables and subjects */\nconst document$ = watchDocument()\nconst location$ = watchLocation()\nconst target$ = watchLocationTarget(location$)\nconst keyboard$ = watchKeyboard()\n\n/* Set up media observables */\nconst viewport$ = watchViewport()\nconst tablet$ = watchMedia(\"(min-width: 960px)\")\nconst screen$ = watchMedia(\"(min-width: 1220px)\")\nconst print$ = watchPrint()\n\n/* Retrieve search index, if search is enabled */\nconst config = configuration()\nconst index$ = document.forms.namedItem(\"search\")\n ? fetchSearchIndex()\n : NEVER\n\n/* Set up Clipboard.js integration */\nconst alert$ = new Subject()\nsetupClipboardJS({ alert$ })\n\n/* Set up progress indicator */\nconst progress$ = new Subject()\n\n/* Set up instant navigation, if enabled */\nif (feature(\"navigation.instant\"))\n setupInstantNavigation({ location$, viewport$, progress$ })\n .subscribe(document$)\n\n/* Set up version selector */\nif (config.version?.provider === \"mike\")\n setupVersionSelector({ document$ })\n\n/* Always close drawer and search on navigation */\nmerge(location$, target$)\n .pipe(\n delay(125)\n )\n .subscribe(() => {\n setToggle(\"drawer\", false)\n setToggle(\"search\", false)\n })\n\n/* Set up global keyboard handlers */\nkeyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\")\n )\n .subscribe(key => {\n switch (key.type) {\n\n /* Go to previous page */\n case \"p\":\n case \",\":\n const prev = getOptionalElement(\"link[rel=prev]\")\n if (typeof prev !== \"undefined\")\n setLocation(prev)\n break\n\n /* Go to next page */\n case \"n\":\n case \".\":\n const next = getOptionalElement(\"link[rel=next]\")\n if (typeof next !== \"undefined\")\n setLocation(next)\n break\n\n /* Expand navigation, see https://bit.ly/3ZjG5io */\n case \"Enter\":\n const active = getActiveElement()\n if (active instanceof HTMLLabelElement)\n active.click()\n }\n })\n\n/* Set up patches */\npatchEllipsis({ viewport$, document$ })\npatchIndeterminate({ document$, tablet$ })\npatchScrollfix({ document$ })\npatchScrolllock({ viewport$, tablet$ })\n\n/* Set up header and main area observable */\nconst header$ = watchHeader(getComponentElement(\"header\"), { viewport$ })\nconst main$ = document$\n .pipe(\n map(() => getComponentElement(\"main\")),\n switchMap(el => watchMain(el, { viewport$, header$ })),\n shareReplay(1)\n )\n\n/* Set up control component observables */\nconst control$ = merge(\n\n /* Consent */\n ...getComponentElements(\"consent\")\n .map(el => mountConsent(el, { target$ })),\n\n /* Dialog */\n ...getComponentElements(\"dialog\")\n .map(el => mountDialog(el, { alert$ })),\n\n /* Header */\n ...getComponentElements(\"header\")\n .map(el => mountHeader(el, { viewport$, header$, main$ })),\n\n /* Color palette */\n ...getComponentElements(\"palette\")\n .map(el => mountPalette(el)),\n\n /* Progress bar */\n ...getComponentElements(\"progress\")\n .map(el => mountProgress(el, { progress$ })),\n\n /* Search */\n ...getComponentElements(\"search\")\n .map(el => mountSearch(el, { index$, keyboard$ })),\n\n /* Repository information */\n ...getComponentElements(\"source\")\n .map(el => mountSource(el))\n)\n\n/* Set up content component observables */\nconst content$ = defer(() => merge(\n\n /* Announcement bar */\n ...getComponentElements(\"announce\")\n .map(el => mountAnnounce(el)),\n\n /* Content */\n ...getComponentElements(\"content\")\n .map(el => mountContent(el, { viewport$, target$, print$ })),\n\n /* Search highlighting */\n ...getComponentElements(\"content\")\n .map(el => feature(\"search.highlight\")\n ? mountSearchHiglight(el, { index$, location$ })\n : EMPTY\n ),\n\n /* Header title */\n ...getComponentElements(\"header-title\")\n .map(el => mountHeaderTitle(el, { viewport$, header$ })),\n\n /* Sidebar */\n ...getComponentElements(\"sidebar\")\n .map(el => el.getAttribute(\"data-md-type\") === \"navigation\"\n ? at(screen$, () => mountSidebar(el, { viewport$, header$, main$ }))\n : at(tablet$, () => mountSidebar(el, { viewport$, header$, main$ }))\n ),\n\n /* Navigation tabs */\n ...getComponentElements(\"tabs\")\n .map(el => mountTabs(el, { viewport$, header$ })),\n\n /* Table of contents */\n ...getComponentElements(\"toc\")\n .map(el => mountTableOfContents(el, {\n viewport$, header$, main$, target$\n })),\n\n /* Back-to-top button */\n ...getComponentElements(\"top\")\n .map(el => mountBackToTop(el, { viewport$, header$, main$, target$ }))\n))\n\n/* Set up component observables */\nconst component$ = document$\n .pipe(\n switchMap(() => content$),\n mergeWith(control$),\n shareReplay(1)\n )\n\n/* Subscribe to all components */\ncomponent$.subscribe()\n\n/* ----------------------------------------------------------------------------\n * Exports\n * ------------------------------------------------------------------------- */\n\nwindow.document$ = document$ /* Document observable */\nwindow.location$ = location$ /* Location subject */\nwindow.target$ = target$ /* Location target observable */\nwindow.keyboard$ = keyboard$ /* Keyboard observable */\nwindow.viewport$ = viewport$ /* Viewport observable */\nwindow.tablet$ = tablet$ /* Media tablet observable */\nwindow.screen$ = screen$ /* Media screen observable */\nwindow.print$ = print$ /* Media print observable */\nwindow.alert$ = alert$ /* Alert subject */\nwindow.progress$ = progress$ /* Progress indicator subject */\nwindow.component$ = component$ /* Component observable */\n", "/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n if (typeof b !== \"function\" && b !== null)\r\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n}\r\n\r\nexport function __spreadArray(to, from, pack) {\r\n if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {\r\n if (ar || !(i in from)) {\r\n if (!ar) ar = Array.prototype.slice.call(from, 0, i);\r\n ar[i] = from[i];\r\n }\r\n }\r\n return to.concat(ar || Array.prototype.slice.call(from));\r\n}\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n", "/**\n * Returns true if the object is a function.\n * @param value The value to check\n */\nexport function isFunction(value: any): value is (...args: any[]) => any {\n return typeof value === 'function';\n}\n", "/**\n * Used to create Error subclasses until the community moves away from ES5.\n *\n * This is because compiling from TypeScript down to ES5 has issues with subclassing Errors\n * as well as other built-in types: https://github.com/Microsoft/TypeScript/issues/12123\n *\n * @param createImpl A factory function to create the actual constructor implementation. The returned\n * function should be a named function that calls `_super` internally.\n */\nexport function createErrorClass(createImpl: (_super: any) => any): T {\n const _super = (instance: any) => {\n Error.call(instance);\n instance.stack = new Error().stack;\n };\n\n const ctorFunc = createImpl(_super);\n ctorFunc.prototype = Object.create(Error.prototype);\n ctorFunc.prototype.constructor = ctorFunc;\n return ctorFunc;\n}\n", "import { createErrorClass } from './createErrorClass';\n\nexport interface UnsubscriptionError extends Error {\n readonly errors: any[];\n}\n\nexport interface UnsubscriptionErrorCtor {\n /**\n * @deprecated Internal implementation detail. Do not construct error instances.\n * Cannot be tagged as internal: https://github.com/ReactiveX/rxjs/issues/6269\n */\n new (errors: any[]): UnsubscriptionError;\n}\n\n/**\n * An error thrown when one or more errors have occurred during the\n * `unsubscribe` of a {@link Subscription}.\n */\nexport const UnsubscriptionError: UnsubscriptionErrorCtor = createErrorClass(\n (_super) =>\n function UnsubscriptionErrorImpl(this: any, errors: (Error | string)[]) {\n _super(this);\n this.message = errors\n ? `${errors.length} errors occurred during unsubscription:\n${errors.map((err, i) => `${i + 1}) ${err.toString()}`).join('\\n ')}`\n : '';\n this.name = 'UnsubscriptionError';\n this.errors = errors;\n }\n);\n", "/**\n * Removes an item from an array, mutating it.\n * @param arr The array to remove the item from\n * @param item The item to remove\n */\nexport function arrRemove(arr: T[] | undefined | null, item: T) {\n if (arr) {\n const index = arr.indexOf(item);\n 0 <= index && arr.splice(index, 1);\n }\n}\n", "import { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nimport { SubscriptionLike, TeardownLogic, Unsubscribable } from './types';\nimport { arrRemove } from './util/arrRemove';\n\n/**\n * Represents a disposable resource, such as the execution of an Observable. A\n * Subscription has one important method, `unsubscribe`, that takes no argument\n * and just disposes the resource held by the subscription.\n *\n * Additionally, subscriptions may be grouped together through the `add()`\n * method, which will attach a child Subscription to the current Subscription.\n * When a Subscription is unsubscribed, all its children (and its grandchildren)\n * will be unsubscribed as well.\n *\n * @class Subscription\n */\nexport class Subscription implements SubscriptionLike {\n /** @nocollapse */\n public static EMPTY = (() => {\n const empty = new Subscription();\n empty.closed = true;\n return empty;\n })();\n\n /**\n * A flag to indicate whether this Subscription has already been unsubscribed.\n */\n public closed = false;\n\n private _parentage: Subscription[] | Subscription | null = null;\n\n /**\n * The list of registered finalizers to execute upon unsubscription. Adding and removing from this\n * list occurs in the {@link #add} and {@link #remove} methods.\n */\n private _finalizers: Exclude[] | null = null;\n\n /**\n * @param initialTeardown A function executed first as part of the finalization\n * process that is kicked off when {@link #unsubscribe} is called.\n */\n constructor(private initialTeardown?: () => void) {}\n\n /**\n * Disposes the resources held by the subscription. May, for instance, cancel\n * an ongoing Observable execution or cancel any other type of work that\n * started when the Subscription was created.\n * @return {void}\n */\n unsubscribe(): void {\n let errors: any[] | undefined;\n\n if (!this.closed) {\n this.closed = true;\n\n // Remove this from it's parents.\n const { _parentage } = this;\n if (_parentage) {\n this._parentage = null;\n if (Array.isArray(_parentage)) {\n for (const parent of _parentage) {\n parent.remove(this);\n }\n } else {\n _parentage.remove(this);\n }\n }\n\n const { initialTeardown: initialFinalizer } = this;\n if (isFunction(initialFinalizer)) {\n try {\n initialFinalizer();\n } catch (e) {\n errors = e instanceof UnsubscriptionError ? e.errors : [e];\n }\n }\n\n const { _finalizers } = this;\n if (_finalizers) {\n this._finalizers = null;\n for (const finalizer of _finalizers) {\n try {\n execFinalizer(finalizer);\n } catch (err) {\n errors = errors ?? [];\n if (err instanceof UnsubscriptionError) {\n errors = [...errors, ...err.errors];\n } else {\n errors.push(err);\n }\n }\n }\n }\n\n if (errors) {\n throw new UnsubscriptionError(errors);\n }\n }\n }\n\n /**\n * Adds a finalizer to this subscription, so that finalization will be unsubscribed/called\n * when this subscription is unsubscribed. If this subscription is already {@link #closed},\n * because it has already been unsubscribed, then whatever finalizer is passed to it\n * will automatically be executed (unless the finalizer itself is also a closed subscription).\n *\n * Closed Subscriptions cannot be added as finalizers to any subscription. Adding a closed\n * subscription to a any subscription will result in no operation. (A noop).\n *\n * Adding a subscription to itself, or adding `null` or `undefined` will not perform any\n * operation at all. (A noop).\n *\n * `Subscription` instances that are added to this instance will automatically remove themselves\n * if they are unsubscribed. Functions and {@link Unsubscribable} objects that you wish to remove\n * will need to be removed manually with {@link #remove}\n *\n * @param teardown The finalization logic to add to this subscription.\n */\n add(teardown: TeardownLogic): void {\n // Only add the finalizer if it's not undefined\n // and don't add a subscription to itself.\n if (teardown && teardown !== this) {\n if (this.closed) {\n // If this subscription is already closed,\n // execute whatever finalizer is handed to it automatically.\n execFinalizer(teardown);\n } else {\n if (teardown instanceof Subscription) {\n // We don't add closed subscriptions, and we don't add the same subscription\n // twice. Subscription unsubscribe is idempotent.\n if (teardown.closed || teardown._hasParent(this)) {\n return;\n }\n teardown._addParent(this);\n }\n (this._finalizers = this._finalizers ?? []).push(teardown);\n }\n }\n }\n\n /**\n * Checks to see if a this subscription already has a particular parent.\n * This will signal that this subscription has already been added to the parent in question.\n * @param parent the parent to check for\n */\n private _hasParent(parent: Subscription) {\n const { _parentage } = this;\n return _parentage === parent || (Array.isArray(_parentage) && _parentage.includes(parent));\n }\n\n /**\n * Adds a parent to this subscription so it can be removed from the parent if it\n * unsubscribes on it's own.\n *\n * NOTE: THIS ASSUMES THAT {@link _hasParent} HAS ALREADY BEEN CHECKED.\n * @param parent The parent subscription to add\n */\n private _addParent(parent: Subscription) {\n const { _parentage } = this;\n this._parentage = Array.isArray(_parentage) ? (_parentage.push(parent), _parentage) : _parentage ? [_parentage, parent] : parent;\n }\n\n /**\n * Called on a child when it is removed via {@link #remove}.\n * @param parent The parent to remove\n */\n private _removeParent(parent: Subscription) {\n const { _parentage } = this;\n if (_parentage === parent) {\n this._parentage = null;\n } else if (Array.isArray(_parentage)) {\n arrRemove(_parentage, parent);\n }\n }\n\n /**\n * Removes a finalizer from this subscription that was previously added with the {@link #add} method.\n *\n * Note that `Subscription` instances, when unsubscribed, will automatically remove themselves\n * from every other `Subscription` they have been added to. This means that using the `remove` method\n * is not a common thing and should be used thoughtfully.\n *\n * If you add the same finalizer instance of a function or an unsubscribable object to a `Subscription` instance\n * more than once, you will need to call `remove` the same number of times to remove all instances.\n *\n * All finalizer instances are removed to free up memory upon unsubscription.\n *\n * @param teardown The finalizer to remove from this subscription\n */\n remove(teardown: Exclude): void {\n const { _finalizers } = this;\n _finalizers && arrRemove(_finalizers, teardown);\n\n if (teardown instanceof Subscription) {\n teardown._removeParent(this);\n }\n }\n}\n\nexport const EMPTY_SUBSCRIPTION = Subscription.EMPTY;\n\nexport function isSubscription(value: any): value is Subscription {\n return (\n value instanceof Subscription ||\n (value && 'closed' in value && isFunction(value.remove) && isFunction(value.add) && isFunction(value.unsubscribe))\n );\n}\n\nfunction execFinalizer(finalizer: Unsubscribable | (() => void)) {\n if (isFunction(finalizer)) {\n finalizer();\n } else {\n finalizer.unsubscribe();\n }\n}\n", "import { Subscriber } from './Subscriber';\nimport { ObservableNotification } from './types';\n\n/**\n * The {@link GlobalConfig} object for RxJS. It is used to configure things\n * like how to react on unhandled errors.\n */\nexport const config: GlobalConfig = {\n onUnhandledError: null,\n onStoppedNotification: null,\n Promise: undefined,\n useDeprecatedSynchronousErrorHandling: false,\n useDeprecatedNextContext: false,\n};\n\n/**\n * The global configuration object for RxJS, used to configure things\n * like how to react on unhandled errors. Accessible via {@link config}\n * object.\n */\nexport interface GlobalConfig {\n /**\n * A registration point for unhandled errors from RxJS. These are errors that\n * cannot were not handled by consuming code in the usual subscription path. For\n * example, if you have this configured, and you subscribe to an observable without\n * providing an error handler, errors from that subscription will end up here. This\n * will _always_ be called asynchronously on another job in the runtime. This is because\n * we do not want errors thrown in this user-configured handler to interfere with the\n * behavior of the library.\n */\n onUnhandledError: ((err: any) => void) | null;\n\n /**\n * A registration point for notifications that cannot be sent to subscribers because they\n * have completed, errored or have been explicitly unsubscribed. By default, next, complete\n * and error notifications sent to stopped subscribers are noops. However, sometimes callers\n * might want a different behavior. For example, with sources that attempt to report errors\n * to stopped subscribers, a caller can configure RxJS to throw an unhandled error instead.\n * This will _always_ be called asynchronously on another job in the runtime. This is because\n * we do not want errors thrown in this user-configured handler to interfere with the\n * behavior of the library.\n */\n onStoppedNotification: ((notification: ObservableNotification, subscriber: Subscriber) => void) | null;\n\n /**\n * The promise constructor used by default for {@link Observable#toPromise toPromise} and {@link Observable#forEach forEach}\n * methods.\n *\n * @deprecated As of version 8, RxJS will no longer support this sort of injection of a\n * Promise constructor. If you need a Promise implementation other than native promises,\n * please polyfill/patch Promise as you see appropriate. Will be removed in v8.\n */\n Promise?: PromiseConstructorLike;\n\n /**\n * If true, turns on synchronous error rethrowing, which is a deprecated behavior\n * in v6 and higher. This behavior enables bad patterns like wrapping a subscribe\n * call in a try/catch block. It also enables producer interference, a nasty bug\n * where a multicast can be broken for all observers by a downstream consumer with\n * an unhandled error. DO NOT USE THIS FLAG UNLESS IT'S NEEDED TO BUY TIME\n * FOR MIGRATION REASONS.\n *\n * @deprecated As of version 8, RxJS will no longer support synchronous throwing\n * of unhandled errors. All errors will be thrown on a separate call stack to prevent bad\n * behaviors described above. Will be removed in v8.\n */\n useDeprecatedSynchronousErrorHandling: boolean;\n\n /**\n * If true, enables an as-of-yet undocumented feature from v5: The ability to access\n * `unsubscribe()` via `this` context in `next` functions created in observers passed\n * to `subscribe`.\n *\n * This is being removed because the performance was severely problematic, and it could also cause\n * issues when types other than POJOs are passed to subscribe as subscribers, as they will likely have\n * their `this` context overwritten.\n *\n * @deprecated As of version 8, RxJS will no longer support altering the\n * context of next functions provided as part of an observer to Subscribe. Instead,\n * you will have access to a subscription or a signal or token that will allow you to do things like\n * unsubscribe and test closed status. Will be removed in v8.\n */\n useDeprecatedNextContext: boolean;\n}\n", "import type { TimerHandle } from './timerHandle';\ntype SetTimeoutFunction = (handler: () => void, timeout?: number, ...args: any[]) => TimerHandle;\ntype ClearTimeoutFunction = (handle: TimerHandle) => void;\n\ninterface TimeoutProvider {\n setTimeout: SetTimeoutFunction;\n clearTimeout: ClearTimeoutFunction;\n delegate:\n | {\n setTimeout: SetTimeoutFunction;\n clearTimeout: ClearTimeoutFunction;\n }\n | undefined;\n}\n\nexport const timeoutProvider: TimeoutProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n setTimeout(handler: () => void, timeout?: number, ...args) {\n const { delegate } = timeoutProvider;\n if (delegate?.setTimeout) {\n return delegate.setTimeout(handler, timeout, ...args);\n }\n return setTimeout(handler, timeout, ...args);\n },\n clearTimeout(handle) {\n const { delegate } = timeoutProvider;\n return (delegate?.clearTimeout || clearTimeout)(handle as any);\n },\n delegate: undefined,\n};\n", "import { config } from '../config';\nimport { timeoutProvider } from '../scheduler/timeoutProvider';\n\n/**\n * Handles an error on another job either with the user-configured {@link onUnhandledError},\n * or by throwing it on that new job so it can be picked up by `window.onerror`, `process.on('error')`, etc.\n *\n * This should be called whenever there is an error that is out-of-band with the subscription\n * or when an error hits a terminal boundary of the subscription and no error handler was provided.\n *\n * @param err the error to report\n */\nexport function reportUnhandledError(err: any) {\n timeoutProvider.setTimeout(() => {\n const { onUnhandledError } = config;\n if (onUnhandledError) {\n // Execute the user-configured error handler.\n onUnhandledError(err);\n } else {\n // Throw so it is picked up by the runtime's uncaught error mechanism.\n throw err;\n }\n });\n}\n", "/* tslint:disable:no-empty */\nexport function noop() { }\n", "import { CompleteNotification, NextNotification, ErrorNotification } from './types';\n\n/**\n * A completion object optimized for memory use and created to be the\n * same \"shape\" as other notifications in v8.\n * @internal\n */\nexport const COMPLETE_NOTIFICATION = (() => createNotification('C', undefined, undefined) as CompleteNotification)();\n\n/**\n * Internal use only. Creates an optimized error notification that is the same \"shape\"\n * as other notifications.\n * @internal\n */\nexport function errorNotification(error: any): ErrorNotification {\n return createNotification('E', undefined, error) as any;\n}\n\n/**\n * Internal use only. Creates an optimized next notification that is the same \"shape\"\n * as other notifications.\n * @internal\n */\nexport function nextNotification(value: T) {\n return createNotification('N', value, undefined) as NextNotification;\n}\n\n/**\n * Ensures that all notifications created internally have the same \"shape\" in v8.\n *\n * TODO: This is only exported to support a crazy legacy test in `groupBy`.\n * @internal\n */\nexport function createNotification(kind: 'N' | 'E' | 'C', value: any, error: any) {\n return {\n kind,\n value,\n error,\n };\n}\n", "import { config } from '../config';\n\nlet context: { errorThrown: boolean; error: any } | null = null;\n\n/**\n * Handles dealing with errors for super-gross mode. Creates a context, in which\n * any synchronously thrown errors will be passed to {@link captureError}. Which\n * will record the error such that it will be rethrown after the call back is complete.\n * TODO: Remove in v8\n * @param cb An immediately executed function.\n */\nexport function errorContext(cb: () => void) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n const isRoot = !context;\n if (isRoot) {\n context = { errorThrown: false, error: null };\n }\n cb();\n if (isRoot) {\n const { errorThrown, error } = context!;\n context = null;\n if (errorThrown) {\n throw error;\n }\n }\n } else {\n // This is the general non-deprecated path for everyone that\n // isn't crazy enough to use super-gross mode (useDeprecatedSynchronousErrorHandling)\n cb();\n }\n}\n\n/**\n * Captures errors only in super-gross mode.\n * @param err the error to capture\n */\nexport function captureError(err: any) {\n if (config.useDeprecatedSynchronousErrorHandling && context) {\n context.errorThrown = true;\n context.error = err;\n }\n}\n", "import { isFunction } from './util/isFunction';\nimport { Observer, ObservableNotification } from './types';\nimport { isSubscription, Subscription } from './Subscription';\nimport { config } from './config';\nimport { reportUnhandledError } from './util/reportUnhandledError';\nimport { noop } from './util/noop';\nimport { nextNotification, errorNotification, COMPLETE_NOTIFICATION } from './NotificationFactories';\nimport { timeoutProvider } from './scheduler/timeoutProvider';\nimport { captureError } from './util/errorContext';\n\n/**\n * Implements the {@link Observer} interface and extends the\n * {@link Subscription} class. While the {@link Observer} is the public API for\n * consuming the values of an {@link Observable}, all Observers get converted to\n * a Subscriber, in order to provide Subscription-like capabilities such as\n * `unsubscribe`. Subscriber is a common type in RxJS, and crucial for\n * implementing operators, but it is rarely used as a public API.\n *\n * @class Subscriber\n */\nexport class Subscriber extends Subscription implements Observer {\n /**\n * A static factory for a Subscriber, given a (potentially partial) definition\n * of an Observer.\n * @param next The `next` callback of an Observer.\n * @param error The `error` callback of an\n * Observer.\n * @param complete The `complete` callback of an\n * Observer.\n * @return A Subscriber wrapping the (partially defined)\n * Observer represented by the given arguments.\n * @nocollapse\n * @deprecated Do not use. Will be removed in v8. There is no replacement for this\n * method, and there is no reason to be creating instances of `Subscriber` directly.\n * If you have a specific use case, please file an issue.\n */\n static create(next?: (x?: T) => void, error?: (e?: any) => void, complete?: () => void): Subscriber {\n return new SafeSubscriber(next, error, complete);\n }\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n protected isStopped: boolean = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n protected destination: Subscriber | Observer; // this `any` is the escape hatch to erase extra type param (e.g. R)\n\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n * There is no reason to directly create an instance of Subscriber. This type is exported for typings reasons.\n */\n constructor(destination?: Subscriber | Observer) {\n super();\n if (destination) {\n this.destination = destination;\n // Automatically chain subscriptions together here.\n // if destination is a Subscription, then it is a Subscriber.\n if (isSubscription(destination)) {\n destination.add(this);\n }\n } else {\n this.destination = EMPTY_OBSERVER;\n }\n }\n\n /**\n * The {@link Observer} callback to receive notifications of type `next` from\n * the Observable, with a value. The Observable may call this method 0 or more\n * times.\n * @param {T} [value] The `next` value.\n * @return {void}\n */\n next(value?: T): void {\n if (this.isStopped) {\n handleStoppedNotification(nextNotification(value), this);\n } else {\n this._next(value!);\n }\n }\n\n /**\n * The {@link Observer} callback to receive notifications of type `error` from\n * the Observable, with an attached `Error`. Notifies the Observer that\n * the Observable has experienced an error condition.\n * @param {any} [err] The `error` exception.\n * @return {void}\n */\n error(err?: any): void {\n if (this.isStopped) {\n handleStoppedNotification(errorNotification(err), this);\n } else {\n this.isStopped = true;\n this._error(err);\n }\n }\n\n /**\n * The {@link Observer} callback to receive a valueless notification of type\n * `complete` from the Observable. Notifies the Observer that the Observable\n * has finished sending push-based notifications.\n * @return {void}\n */\n complete(): void {\n if (this.isStopped) {\n handleStoppedNotification(COMPLETE_NOTIFICATION, this);\n } else {\n this.isStopped = true;\n this._complete();\n }\n }\n\n unsubscribe(): void {\n if (!this.closed) {\n this.isStopped = true;\n super.unsubscribe();\n this.destination = null!;\n }\n }\n\n protected _next(value: T): void {\n this.destination.next(value);\n }\n\n protected _error(err: any): void {\n try {\n this.destination.error(err);\n } finally {\n this.unsubscribe();\n }\n }\n\n protected _complete(): void {\n try {\n this.destination.complete();\n } finally {\n this.unsubscribe();\n }\n }\n}\n\n/**\n * This bind is captured here because we want to be able to have\n * compatibility with monoid libraries that tend to use a method named\n * `bind`. In particular, a library called Monio requires this.\n */\nconst _bind = Function.prototype.bind;\n\nfunction bind any>(fn: Fn, thisArg: any): Fn {\n return _bind.call(fn, thisArg);\n}\n\n/**\n * Internal optimization only, DO NOT EXPOSE.\n * @internal\n */\nclass ConsumerObserver implements Observer {\n constructor(private partialObserver: Partial>) {}\n\n next(value: T): void {\n const { partialObserver } = this;\n if (partialObserver.next) {\n try {\n partialObserver.next(value);\n } catch (error) {\n handleUnhandledError(error);\n }\n }\n }\n\n error(err: any): void {\n const { partialObserver } = this;\n if (partialObserver.error) {\n try {\n partialObserver.error(err);\n } catch (error) {\n handleUnhandledError(error);\n }\n } else {\n handleUnhandledError(err);\n }\n }\n\n complete(): void {\n const { partialObserver } = this;\n if (partialObserver.complete) {\n try {\n partialObserver.complete();\n } catch (error) {\n handleUnhandledError(error);\n }\n }\n }\n}\n\nexport class SafeSubscriber extends Subscriber {\n constructor(\n observerOrNext?: Partial> | ((value: T) => void) | null,\n error?: ((e?: any) => void) | null,\n complete?: (() => void) | null\n ) {\n super();\n\n let partialObserver: Partial>;\n if (isFunction(observerOrNext) || !observerOrNext) {\n // The first argument is a function, not an observer. The next\n // two arguments *could* be observers, or they could be empty.\n partialObserver = {\n next: (observerOrNext ?? undefined) as (((value: T) => void) | undefined),\n error: error ?? undefined,\n complete: complete ?? undefined,\n };\n } else {\n // The first argument is a partial observer.\n let context: any;\n if (this && config.useDeprecatedNextContext) {\n // This is a deprecated path that made `this.unsubscribe()` available in\n // next handler functions passed to subscribe. This only exists behind a flag\n // now, as it is *very* slow.\n context = Object.create(observerOrNext);\n context.unsubscribe = () => this.unsubscribe();\n partialObserver = {\n next: observerOrNext.next && bind(observerOrNext.next, context),\n error: observerOrNext.error && bind(observerOrNext.error, context),\n complete: observerOrNext.complete && bind(observerOrNext.complete, context),\n };\n } else {\n // The \"normal\" path. Just use the partial observer directly.\n partialObserver = observerOrNext;\n }\n }\n\n // Wrap the partial observer to ensure it's a full observer, and\n // make sure proper error handling is accounted for.\n this.destination = new ConsumerObserver(partialObserver);\n }\n}\n\nfunction handleUnhandledError(error: any) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n captureError(error);\n } else {\n // Ideal path, we report this as an unhandled error,\n // which is thrown on a new call stack.\n reportUnhandledError(error);\n }\n}\n\n/**\n * An error handler used when no error handler was supplied\n * to the SafeSubscriber -- meaning no error handler was supplied\n * do the `subscribe` call on our observable.\n * @param err The error to handle\n */\nfunction defaultErrorHandler(err: any) {\n throw err;\n}\n\n/**\n * A handler for notifications that cannot be sent to a stopped subscriber.\n * @param notification The notification being sent\n * @param subscriber The stopped subscriber\n */\nfunction handleStoppedNotification(notification: ObservableNotification, subscriber: Subscriber) {\n const { onStoppedNotification } = config;\n onStoppedNotification && timeoutProvider.setTimeout(() => onStoppedNotification(notification, subscriber));\n}\n\n/**\n * The observer used as a stub for subscriptions where the user did not\n * pass any arguments to `subscribe`. Comes with the default error handling\n * behavior.\n */\nexport const EMPTY_OBSERVER: Readonly> & { closed: true } = {\n closed: true,\n next: noop,\n error: defaultErrorHandler,\n complete: noop,\n};\n", "/**\n * Symbol.observable or a string \"@@observable\". Used for interop\n *\n * @deprecated We will no longer be exporting this symbol in upcoming versions of RxJS.\n * Instead polyfill and use Symbol.observable directly *or* use https://www.npmjs.com/package/symbol-observable\n */\nexport const observable: string | symbol = (() => (typeof Symbol === 'function' && Symbol.observable) || '@@observable')();\n", "/**\n * This function takes one parameter and just returns it. Simply put,\n * this is like `(x: T): T => x`.\n *\n * ## Examples\n *\n * This is useful in some cases when using things like `mergeMap`\n *\n * ```ts\n * import { interval, take, map, range, mergeMap, identity } from 'rxjs';\n *\n * const source$ = interval(1000).pipe(take(5));\n *\n * const result$ = source$.pipe(\n * map(i => range(i)),\n * mergeMap(identity) // same as mergeMap(x => x)\n * );\n *\n * result$.subscribe({\n * next: console.log\n * });\n * ```\n *\n * Or when you want to selectively apply an operator\n *\n * ```ts\n * import { interval, take, identity } from 'rxjs';\n *\n * const shouldLimit = () => Math.random() < 0.5;\n *\n * const source$ = interval(1000);\n *\n * const result$ = source$.pipe(shouldLimit() ? take(5) : identity);\n *\n * result$.subscribe({\n * next: console.log\n * });\n * ```\n *\n * @param x Any value that is returned by this function\n * @returns The value passed as the first parameter to this function\n */\nexport function identity(x: T): T {\n return x;\n}\n", "import { identity } from './identity';\nimport { UnaryFunction } from '../types';\n\nexport function pipe(): typeof identity;\nexport function pipe(fn1: UnaryFunction): UnaryFunction;\nexport function pipe(fn1: UnaryFunction, fn2: UnaryFunction): UnaryFunction;\nexport function pipe(fn1: UnaryFunction, fn2: UnaryFunction, fn3: UnaryFunction): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction,\n fn9: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction,\n fn9: UnaryFunction,\n ...fns: UnaryFunction[]\n): UnaryFunction;\n\n/**\n * pipe() can be called on one or more functions, each of which can take one argument (\"UnaryFunction\")\n * and uses it to return a value.\n * It returns a function that takes one argument, passes it to the first UnaryFunction, and then\n * passes the result to the next one, passes that result to the next one, and so on. \n */\nexport function pipe(...fns: Array>): UnaryFunction {\n return pipeFromArray(fns);\n}\n\n/** @internal */\nexport function pipeFromArray(fns: Array>): UnaryFunction {\n if (fns.length === 0) {\n return identity as UnaryFunction;\n }\n\n if (fns.length === 1) {\n return fns[0];\n }\n\n return function piped(input: T): R {\n return fns.reduce((prev: any, fn: UnaryFunction) => fn(prev), input as any);\n };\n}\n", "import { Operator } from './Operator';\nimport { SafeSubscriber, Subscriber } from './Subscriber';\nimport { isSubscription, Subscription } from './Subscription';\nimport { TeardownLogic, OperatorFunction, Subscribable, Observer } from './types';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nimport { isFunction } from './util/isFunction';\nimport { errorContext } from './util/errorContext';\n\n/**\n * A representation of any set of values over any amount of time. This is the most basic building block\n * of RxJS.\n *\n * @class Observable\n */\nexport class Observable implements Subscribable {\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n */\n source: Observable | undefined;\n\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n */\n operator: Operator | undefined;\n\n /**\n * @constructor\n * @param {Function} subscribe the function that is called when the Observable is\n * initially subscribed to. This function is given a Subscriber, to which new values\n * can be `next`ed, or an `error` method can be called to raise an error, or\n * `complete` can be called to notify of a successful completion.\n */\n constructor(subscribe?: (this: Observable, subscriber: Subscriber) => TeardownLogic) {\n if (subscribe) {\n this._subscribe = subscribe;\n }\n }\n\n // HACK: Since TypeScript inherits static properties too, we have to\n // fight against TypeScript here so Subject can have a different static create signature\n /**\n * Creates a new Observable by calling the Observable constructor\n * @owner Observable\n * @method create\n * @param {Function} subscribe? the subscriber function to be passed to the Observable constructor\n * @return {Observable} a new observable\n * @nocollapse\n * @deprecated Use `new Observable()` instead. Will be removed in v8.\n */\n static create: (...args: any[]) => any = (subscribe?: (subscriber: Subscriber) => TeardownLogic) => {\n return new Observable(subscribe);\n };\n\n /**\n * Creates a new Observable, with this Observable instance as the source, and the passed\n * operator defined as the new observable's operator.\n * @method lift\n * @param operator the operator defining the operation to take on the observable\n * @return a new observable with the Operator applied\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n * If you have implemented an operator using `lift`, it is recommended that you create an\n * operator by simply returning `new Observable()` directly. See \"Creating new operators from\n * scratch\" section here: https://rxjs.dev/guide/operators\n */\n lift(operator?: Operator): Observable {\n const observable = new Observable();\n observable.source = this;\n observable.operator = operator;\n return observable;\n }\n\n subscribe(observerOrNext?: Partial> | ((value: T) => void)): Subscription;\n /** @deprecated Instead of passing separate callback arguments, use an observer argument. Signatures taking separate callback arguments will be removed in v8. Details: https://rxjs.dev/deprecations/subscribe-arguments */\n subscribe(next?: ((value: T) => void) | null, error?: ((error: any) => void) | null, complete?: (() => void) | null): Subscription;\n /**\n * Invokes an execution of an Observable and registers Observer handlers for notifications it will emit.\n *\n * Use it when you have all these Observables, but still nothing is happening.\n *\n * `subscribe` is not a regular operator, but a method that calls Observable's internal `subscribe` function. It\n * might be for example a function that you passed to Observable's constructor, but most of the time it is\n * a library implementation, which defines what will be emitted by an Observable, and when it be will emitted. This means\n * that calling `subscribe` is actually the moment when Observable starts its work, not when it is created, as it is often\n * the thought.\n *\n * Apart from starting the execution of an Observable, this method allows you to listen for values\n * that an Observable emits, as well as for when it completes or errors. You can achieve this in two\n * of the following ways.\n *\n * The first way is creating an object that implements {@link Observer} interface. It should have methods\n * defined by that interface, but note that it should be just a regular JavaScript object, which you can create\n * yourself in any way you want (ES6 class, classic function constructor, object literal etc.). In particular, do\n * not attempt to use any RxJS implementation details to create Observers - you don't need them. Remember also\n * that your object does not have to implement all methods. If you find yourself creating a method that doesn't\n * do anything, you can simply omit it. Note however, if the `error` method is not provided and an error happens,\n * it will be thrown asynchronously. Errors thrown asynchronously cannot be caught using `try`/`catch`. Instead,\n * use the {@link onUnhandledError} configuration option or use a runtime handler (like `window.onerror` or\n * `process.on('error)`) to be notified of unhandled errors. Because of this, it's recommended that you provide\n * an `error` method to avoid missing thrown errors.\n *\n * The second way is to give up on Observer object altogether and simply provide callback functions in place of its methods.\n * This means you can provide three functions as arguments to `subscribe`, where the first function is equivalent\n * of a `next` method, the second of an `error` method and the third of a `complete` method. Just as in case of an Observer,\n * if you do not need to listen for something, you can omit a function by passing `undefined` or `null`,\n * since `subscribe` recognizes these functions by where they were placed in function call. When it comes\n * to the `error` function, as with an Observer, if not provided, errors emitted by an Observable will be thrown asynchronously.\n *\n * You can, however, subscribe with no parameters at all. This may be the case where you're not interested in terminal events\n * and you also handled emissions internally by using operators (e.g. using `tap`).\n *\n * Whichever style of calling `subscribe` you use, in both cases it returns a Subscription object.\n * This object allows you to call `unsubscribe` on it, which in turn will stop the work that an Observable does and will clean\n * up all resources that an Observable used. Note that cancelling a subscription will not call `complete` callback\n * provided to `subscribe` function, which is reserved for a regular completion signal that comes from an Observable.\n *\n * Remember that callbacks provided to `subscribe` are not guaranteed to be called asynchronously.\n * It is an Observable itself that decides when these functions will be called. For example {@link of}\n * by default emits all its values synchronously. Always check documentation for how given Observable\n * will behave when subscribed and if its default behavior can be modified with a `scheduler`.\n *\n * #### Examples\n *\n * Subscribe with an {@link guide/observer Observer}\n *\n * ```ts\n * import { of } from 'rxjs';\n *\n * const sumObserver = {\n * sum: 0,\n * next(value) {\n * console.log('Adding: ' + value);\n * this.sum = this.sum + value;\n * },\n * error() {\n * // We actually could just remove this method,\n * // since we do not really care about errors right now.\n * },\n * complete() {\n * console.log('Sum equals: ' + this.sum);\n * }\n * };\n *\n * of(1, 2, 3) // Synchronously emits 1, 2, 3 and then completes.\n * .subscribe(sumObserver);\n *\n * // Logs:\n * // 'Adding: 1'\n * // 'Adding: 2'\n * // 'Adding: 3'\n * // 'Sum equals: 6'\n * ```\n *\n * Subscribe with functions ({@link deprecations/subscribe-arguments deprecated})\n *\n * ```ts\n * import { of } from 'rxjs'\n *\n * let sum = 0;\n *\n * of(1, 2, 3).subscribe(\n * value => {\n * console.log('Adding: ' + value);\n * sum = sum + value;\n * },\n * undefined,\n * () => console.log('Sum equals: ' + sum)\n * );\n *\n * // Logs:\n * // 'Adding: 1'\n * // 'Adding: 2'\n * // 'Adding: 3'\n * // 'Sum equals: 6'\n * ```\n *\n * Cancel a subscription\n *\n * ```ts\n * import { interval } from 'rxjs';\n *\n * const subscription = interval(1000).subscribe({\n * next(num) {\n * console.log(num)\n * },\n * complete() {\n * // Will not be called, even when cancelling subscription.\n * console.log('completed!');\n * }\n * });\n *\n * setTimeout(() => {\n * subscription.unsubscribe();\n * console.log('unsubscribed!');\n * }, 2500);\n *\n * // Logs:\n * // 0 after 1s\n * // 1 after 2s\n * // 'unsubscribed!' after 2.5s\n * ```\n *\n * @param {Observer|Function} observerOrNext (optional) Either an observer with methods to be called,\n * or the first of three possible handlers, which is the handler for each value emitted from the subscribed\n * Observable.\n * @param {Function} error (optional) A handler for a terminal event resulting from an error. If no error handler is provided,\n * the error will be thrown asynchronously as unhandled.\n * @param {Function} complete (optional) A handler for a terminal event resulting from successful completion.\n * @return {Subscription} a subscription reference to the registered handlers\n * @method subscribe\n */\n subscribe(\n observerOrNext?: Partial> | ((value: T) => void) | null,\n error?: ((error: any) => void) | null,\n complete?: (() => void) | null\n ): Subscription {\n const subscriber = isSubscriber(observerOrNext) ? observerOrNext : new SafeSubscriber(observerOrNext, error, complete);\n\n errorContext(() => {\n const { operator, source } = this;\n subscriber.add(\n operator\n ? // We're dealing with a subscription in the\n // operator chain to one of our lifted operators.\n operator.call(subscriber, source)\n : source\n ? // If `source` has a value, but `operator` does not, something that\n // had intimate knowledge of our API, like our `Subject`, must have\n // set it. We're going to just call `_subscribe` directly.\n this._subscribe(subscriber)\n : // In all other cases, we're likely wrapping a user-provided initializer\n // function, so we need to catch errors and handle them appropriately.\n this._trySubscribe(subscriber)\n );\n });\n\n return subscriber;\n }\n\n /** @internal */\n protected _trySubscribe(sink: Subscriber): TeardownLogic {\n try {\n return this._subscribe(sink);\n } catch (err) {\n // We don't need to return anything in this case,\n // because it's just going to try to `add()` to a subscription\n // above.\n sink.error(err);\n }\n }\n\n /**\n * Used as a NON-CANCELLABLE means of subscribing to an observable, for use with\n * APIs that expect promises, like `async/await`. You cannot unsubscribe from this.\n *\n * **WARNING**: Only use this with observables you *know* will complete. If the source\n * observable does not complete, you will end up with a promise that is hung up, and\n * potentially all of the state of an async function hanging out in memory. To avoid\n * this situation, look into adding something like {@link timeout}, {@link take},\n * {@link takeWhile}, or {@link takeUntil} amongst others.\n *\n * #### Example\n *\n * ```ts\n * import { interval, take } from 'rxjs';\n *\n * const source$ = interval(1000).pipe(take(4));\n *\n * async function getTotal() {\n * let total = 0;\n *\n * await source$.forEach(value => {\n * total += value;\n * console.log('observable -> ' + value);\n * });\n *\n * return total;\n * }\n *\n * getTotal().then(\n * total => console.log('Total: ' + total)\n * );\n *\n * // Expected:\n * // 'observable -> 0'\n * // 'observable -> 1'\n * // 'observable -> 2'\n * // 'observable -> 3'\n * // 'Total: 6'\n * ```\n *\n * @param next a handler for each value emitted by the observable\n * @return a promise that either resolves on observable completion or\n * rejects with the handled error\n */\n forEach(next: (value: T) => void): Promise;\n\n /**\n * @param next a handler for each value emitted by the observable\n * @param promiseCtor a constructor function used to instantiate the Promise\n * @return a promise that either resolves on observable completion or\n * rejects with the handled error\n * @deprecated Passing a Promise constructor will no longer be available\n * in upcoming versions of RxJS. This is because it adds weight to the library, for very\n * little benefit. If you need this functionality, it is recommended that you either\n * polyfill Promise, or you create an adapter to convert the returned native promise\n * to whatever promise implementation you wanted. Will be removed in v8.\n */\n forEach(next: (value: T) => void, promiseCtor: PromiseConstructorLike): Promise;\n\n forEach(next: (value: T) => void, promiseCtor?: PromiseConstructorLike): Promise {\n promiseCtor = getPromiseCtor(promiseCtor);\n\n return new promiseCtor((resolve, reject) => {\n const subscriber = new SafeSubscriber({\n next: (value) => {\n try {\n next(value);\n } catch (err) {\n reject(err);\n subscriber.unsubscribe();\n }\n },\n error: reject,\n complete: resolve,\n });\n this.subscribe(subscriber);\n }) as Promise;\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): TeardownLogic {\n return this.source?.subscribe(subscriber);\n }\n\n /**\n * An interop point defined by the es7-observable spec https://github.com/zenparsing/es-observable\n * @method Symbol.observable\n * @return {Observable} this instance of the observable\n */\n [Symbol_observable]() {\n return this;\n }\n\n /* tslint:disable:max-line-length */\n pipe(): Observable;\n pipe(op1: OperatorFunction): Observable;\n pipe(op1: OperatorFunction, op2: OperatorFunction): Observable;\n pipe(op1: OperatorFunction, op2: OperatorFunction, op3: OperatorFunction): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction,\n op9: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction,\n op9: OperatorFunction,\n ...operations: OperatorFunction[]\n ): Observable;\n /* tslint:enable:max-line-length */\n\n /**\n * Used to stitch together functional operators into a chain.\n * @method pipe\n * @return {Observable} the Observable result of all of the operators having\n * been called in the order they were passed in.\n *\n * ## Example\n *\n * ```ts\n * import { interval, filter, map, scan } from 'rxjs';\n *\n * interval(1000)\n * .pipe(\n * filter(x => x % 2 === 0),\n * map(x => x + x),\n * scan((acc, x) => acc + x)\n * )\n * .subscribe(x => console.log(x));\n * ```\n */\n pipe(...operations: OperatorFunction[]): Observable {\n return pipeFromArray(operations)(this);\n }\n\n /* tslint:disable:max-line-length */\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(): Promise;\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(PromiseCtor: typeof Promise): Promise;\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(PromiseCtor: PromiseConstructorLike): Promise;\n /* tslint:enable:max-line-length */\n\n /**\n * Subscribe to this Observable and get a Promise resolving on\n * `complete` with the last emission (if any).\n *\n * **WARNING**: Only use this with observables you *know* will complete. If the source\n * observable does not complete, you will end up with a promise that is hung up, and\n * potentially all of the state of an async function hanging out in memory. To avoid\n * this situation, look into adding something like {@link timeout}, {@link take},\n * {@link takeWhile}, or {@link takeUntil} amongst others.\n *\n * @method toPromise\n * @param [promiseCtor] a constructor function used to instantiate\n * the Promise\n * @return A Promise that resolves with the last value emit, or\n * rejects on an error. If there were no emissions, Promise\n * resolves with undefined.\n * @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise\n */\n toPromise(promiseCtor?: PromiseConstructorLike): Promise {\n promiseCtor = getPromiseCtor(promiseCtor);\n\n return new promiseCtor((resolve, reject) => {\n let value: T | undefined;\n this.subscribe(\n (x: T) => (value = x),\n (err: any) => reject(err),\n () => resolve(value)\n );\n }) as Promise;\n }\n}\n\n/**\n * Decides between a passed promise constructor from consuming code,\n * A default configured promise constructor, and the native promise\n * constructor and returns it. If nothing can be found, it will throw\n * an error.\n * @param promiseCtor The optional promise constructor to passed by consuming code\n */\nfunction getPromiseCtor(promiseCtor: PromiseConstructorLike | undefined) {\n return promiseCtor ?? config.Promise ?? Promise;\n}\n\nfunction isObserver(value: any): value is Observer {\n return value && isFunction(value.next) && isFunction(value.error) && isFunction(value.complete);\n}\n\nfunction isSubscriber(value: any): value is Subscriber {\n return (value && value instanceof Subscriber) || (isObserver(value) && isSubscription(value));\n}\n", "import { Observable } from '../Observable';\nimport { Subscriber } from '../Subscriber';\nimport { OperatorFunction } from '../types';\nimport { isFunction } from './isFunction';\n\n/**\n * Used to determine if an object is an Observable with a lift function.\n */\nexport function hasLift(source: any): source is { lift: InstanceType['lift'] } {\n return isFunction(source?.lift);\n}\n\n/**\n * Creates an `OperatorFunction`. Used to define operators throughout the library in a concise way.\n * @param init The logic to connect the liftedSource to the subscriber at the moment of subscription.\n */\nexport function operate(\n init: (liftedSource: Observable, subscriber: Subscriber) => (() => void) | void\n): OperatorFunction {\n return (source: Observable) => {\n if (hasLift(source)) {\n return source.lift(function (this: Subscriber, liftedSource: Observable) {\n try {\n return init(liftedSource, this);\n } catch (err) {\n this.error(err);\n }\n });\n }\n throw new TypeError('Unable to lift unknown Observable type');\n };\n}\n", "import { Subscriber } from '../Subscriber';\n\n/**\n * Creates an instance of an `OperatorSubscriber`.\n * @param destination The downstream subscriber.\n * @param onNext Handles next values, only called if this subscriber is not stopped or closed. Any\n * error that occurs in this function is caught and sent to the `error` method of this subscriber.\n * @param onError Handles errors from the subscription, any errors that occur in this handler are caught\n * and send to the `destination` error handler.\n * @param onComplete Handles completion notification from the subscription. Any errors that occur in\n * this handler are sent to the `destination` error handler.\n * @param onFinalize Additional teardown logic here. This will only be called on teardown if the\n * subscriber itself is not already closed. This is called after all other teardown logic is executed.\n */\nexport function createOperatorSubscriber(\n destination: Subscriber,\n onNext?: (value: T) => void,\n onComplete?: () => void,\n onError?: (err: any) => void,\n onFinalize?: () => void\n): Subscriber {\n return new OperatorSubscriber(destination, onNext, onComplete, onError, onFinalize);\n}\n\n/**\n * A generic helper for allowing operators to be created with a Subscriber and\n * use closures to capture necessary state from the operator function itself.\n */\nexport class OperatorSubscriber extends Subscriber {\n /**\n * Creates an instance of an `OperatorSubscriber`.\n * @param destination The downstream subscriber.\n * @param onNext Handles next values, only called if this subscriber is not stopped or closed. Any\n * error that occurs in this function is caught and sent to the `error` method of this subscriber.\n * @param onError Handles errors from the subscription, any errors that occur in this handler are caught\n * and send to the `destination` error handler.\n * @param onComplete Handles completion notification from the subscription. Any errors that occur in\n * this handler are sent to the `destination` error handler.\n * @param onFinalize Additional finalization logic here. This will only be called on finalization if the\n * subscriber itself is not already closed. This is called after all other finalization logic is executed.\n * @param shouldUnsubscribe An optional check to see if an unsubscribe call should truly unsubscribe.\n * NOTE: This currently **ONLY** exists to support the strange behavior of {@link groupBy}, where unsubscription\n * to the resulting observable does not actually disconnect from the source if there are active subscriptions\n * to any grouped observable. (DO NOT EXPOSE OR USE EXTERNALLY!!!)\n */\n constructor(\n destination: Subscriber,\n onNext?: (value: T) => void,\n onComplete?: () => void,\n onError?: (err: any) => void,\n private onFinalize?: () => void,\n private shouldUnsubscribe?: () => boolean\n ) {\n // It's important - for performance reasons - that all of this class's\n // members are initialized and that they are always initialized in the same\n // order. This will ensure that all OperatorSubscriber instances have the\n // same hidden class in V8. This, in turn, will help keep the number of\n // hidden classes involved in property accesses within the base class as\n // low as possible. If the number of hidden classes involved exceeds four,\n // the property accesses will become megamorphic and performance penalties\n // will be incurred - i.e. inline caches won't be used.\n //\n // The reasons for ensuring all instances have the same hidden class are\n // further discussed in this blog post from Benedikt Meurer:\n // https://benediktmeurer.de/2018/03/23/impact-of-polymorphism-on-component-based-frameworks-like-react/\n super(destination);\n this._next = onNext\n ? function (this: OperatorSubscriber, value: T) {\n try {\n onNext(value);\n } catch (err) {\n destination.error(err);\n }\n }\n : super._next;\n this._error = onError\n ? function (this: OperatorSubscriber, err: any) {\n try {\n onError(err);\n } catch (err) {\n // Send any errors that occur down stream.\n destination.error(err);\n } finally {\n // Ensure finalization.\n this.unsubscribe();\n }\n }\n : super._error;\n this._complete = onComplete\n ? function (this: OperatorSubscriber) {\n try {\n onComplete();\n } catch (err) {\n // Send any errors that occur down stream.\n destination.error(err);\n } finally {\n // Ensure finalization.\n this.unsubscribe();\n }\n }\n : super._complete;\n }\n\n unsubscribe() {\n if (!this.shouldUnsubscribe || this.shouldUnsubscribe()) {\n const { closed } = this;\n super.unsubscribe();\n // Execute additional teardown if we have any and we didn't already do so.\n !closed && this.onFinalize?.();\n }\n }\n}\n", "import { Subscription } from '../Subscription';\n\ninterface AnimationFrameProvider {\n schedule(callback: FrameRequestCallback): Subscription;\n requestAnimationFrame: typeof requestAnimationFrame;\n cancelAnimationFrame: typeof cancelAnimationFrame;\n delegate:\n | {\n requestAnimationFrame: typeof requestAnimationFrame;\n cancelAnimationFrame: typeof cancelAnimationFrame;\n }\n | undefined;\n}\n\nexport const animationFrameProvider: AnimationFrameProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n schedule(callback) {\n let request = requestAnimationFrame;\n let cancel: typeof cancelAnimationFrame | undefined = cancelAnimationFrame;\n const { delegate } = animationFrameProvider;\n if (delegate) {\n request = delegate.requestAnimationFrame;\n cancel = delegate.cancelAnimationFrame;\n }\n const handle = request((timestamp) => {\n // Clear the cancel function. The request has been fulfilled, so\n // attempting to cancel the request upon unsubscription would be\n // pointless.\n cancel = undefined;\n callback(timestamp);\n });\n return new Subscription(() => cancel?.(handle));\n },\n requestAnimationFrame(...args) {\n const { delegate } = animationFrameProvider;\n return (delegate?.requestAnimationFrame || requestAnimationFrame)(...args);\n },\n cancelAnimationFrame(...args) {\n const { delegate } = animationFrameProvider;\n return (delegate?.cancelAnimationFrame || cancelAnimationFrame)(...args);\n },\n delegate: undefined,\n};\n", "import { createErrorClass } from './createErrorClass';\n\nexport interface ObjectUnsubscribedError extends Error {}\n\nexport interface ObjectUnsubscribedErrorCtor {\n /**\n * @deprecated Internal implementation detail. Do not construct error instances.\n * Cannot be tagged as internal: https://github.com/ReactiveX/rxjs/issues/6269\n */\n new (): ObjectUnsubscribedError;\n}\n\n/**\n * An error thrown when an action is invalid because the object has been\n * unsubscribed.\n *\n * @see {@link Subject}\n * @see {@link BehaviorSubject}\n *\n * @class ObjectUnsubscribedError\n */\nexport const ObjectUnsubscribedError: ObjectUnsubscribedErrorCtor = createErrorClass(\n (_super) =>\n function ObjectUnsubscribedErrorImpl(this: any) {\n _super(this);\n this.name = 'ObjectUnsubscribedError';\n this.message = 'object unsubscribed';\n }\n);\n", "import { Operator } from './Operator';\nimport { Observable } from './Observable';\nimport { Subscriber } from './Subscriber';\nimport { Subscription, EMPTY_SUBSCRIPTION } from './Subscription';\nimport { Observer, SubscriptionLike, TeardownLogic } from './types';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { arrRemove } from './util/arrRemove';\nimport { errorContext } from './util/errorContext';\n\n/**\n * A Subject is a special type of Observable that allows values to be\n * multicasted to many Observers. Subjects are like EventEmitters.\n *\n * Every Subject is an Observable and an Observer. You can subscribe to a\n * Subject, and you can call next to feed values as well as error and complete.\n */\nexport class Subject extends Observable implements SubscriptionLike {\n closed = false;\n\n private currentObservers: Observer[] | null = null;\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n observers: Observer[] = [];\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n isStopped = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n hasError = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n thrownError: any = null;\n\n /**\n * Creates a \"subject\" by basically gluing an observer to an observable.\n *\n * @nocollapse\n * @deprecated Recommended you do not use. Will be removed at some point in the future. Plans for replacement still under discussion.\n */\n static create: (...args: any[]) => any = (destination: Observer, source: Observable): AnonymousSubject => {\n return new AnonymousSubject(destination, source);\n };\n\n constructor() {\n // NOTE: This must be here to obscure Observable's constructor.\n super();\n }\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n lift(operator: Operator): Observable {\n const subject = new AnonymousSubject(this, this);\n subject.operator = operator as any;\n return subject as any;\n }\n\n /** @internal */\n protected _throwIfClosed() {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n }\n\n next(value: T) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n if (!this.currentObservers) {\n this.currentObservers = Array.from(this.observers);\n }\n for (const observer of this.currentObservers) {\n observer.next(value);\n }\n }\n });\n }\n\n error(err: any) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.hasError = this.isStopped = true;\n this.thrownError = err;\n const { observers } = this;\n while (observers.length) {\n observers.shift()!.error(err);\n }\n }\n });\n }\n\n complete() {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.isStopped = true;\n const { observers } = this;\n while (observers.length) {\n observers.shift()!.complete();\n }\n }\n });\n }\n\n unsubscribe() {\n this.isStopped = this.closed = true;\n this.observers = this.currentObservers = null!;\n }\n\n get observed() {\n return this.observers?.length > 0;\n }\n\n /** @internal */\n protected _trySubscribe(subscriber: Subscriber): TeardownLogic {\n this._throwIfClosed();\n return super._trySubscribe(subscriber);\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n this._throwIfClosed();\n this._checkFinalizedStatuses(subscriber);\n return this._innerSubscribe(subscriber);\n }\n\n /** @internal */\n protected _innerSubscribe(subscriber: Subscriber) {\n const { hasError, isStopped, observers } = this;\n if (hasError || isStopped) {\n return EMPTY_SUBSCRIPTION;\n }\n this.currentObservers = null;\n observers.push(subscriber);\n return new Subscription(() => {\n this.currentObservers = null;\n arrRemove(observers, subscriber);\n });\n }\n\n /** @internal */\n protected _checkFinalizedStatuses(subscriber: Subscriber) {\n const { hasError, thrownError, isStopped } = this;\n if (hasError) {\n subscriber.error(thrownError);\n } else if (isStopped) {\n subscriber.complete();\n }\n }\n\n /**\n * Creates a new Observable with this Subject as the source. You can do this\n * to create custom Observer-side logic of the Subject and conceal it from\n * code that uses the Observable.\n * @return {Observable} Observable that the Subject casts to\n */\n asObservable(): Observable {\n const observable: any = new Observable();\n observable.source = this;\n return observable;\n }\n}\n\n/**\n * @class AnonymousSubject\n */\nexport class AnonymousSubject extends Subject {\n constructor(\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n public destination?: Observer,\n source?: Observable\n ) {\n super();\n this.source = source;\n }\n\n next(value: T) {\n this.destination?.next?.(value);\n }\n\n error(err: any) {\n this.destination?.error?.(err);\n }\n\n complete() {\n this.destination?.complete?.();\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n return this.source?.subscribe(subscriber) ?? EMPTY_SUBSCRIPTION;\n }\n}\n", "import { Subject } from './Subject';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\n\n/**\n * A variant of Subject that requires an initial value and emits its current\n * value whenever it is subscribed to.\n *\n * @class BehaviorSubject\n */\nexport class BehaviorSubject extends Subject {\n constructor(private _value: T) {\n super();\n }\n\n get value(): T {\n return this.getValue();\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n const subscription = super._subscribe(subscriber);\n !subscription.closed && subscriber.next(this._value);\n return subscription;\n }\n\n getValue(): T {\n const { hasError, thrownError, _value } = this;\n if (hasError) {\n throw thrownError;\n }\n this._throwIfClosed();\n return _value;\n }\n\n next(value: T): void {\n super.next((this._value = value));\n }\n}\n", "import { TimestampProvider } from '../types';\n\ninterface DateTimestampProvider extends TimestampProvider {\n delegate: TimestampProvider | undefined;\n}\n\nexport const dateTimestampProvider: DateTimestampProvider = {\n now() {\n // Use the variable rather than `this` so that the function can be called\n // without being bound to the provider.\n return (dateTimestampProvider.delegate || Date).now();\n },\n delegate: undefined,\n};\n", "import { Subject } from './Subject';\nimport { TimestampProvider } from './types';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\n\n/**\n * A variant of {@link Subject} that \"replays\" old values to new subscribers by emitting them when they first subscribe.\n *\n * `ReplaySubject` has an internal buffer that will store a specified number of values that it has observed. Like `Subject`,\n * `ReplaySubject` \"observes\" values by having them passed to its `next` method. When it observes a value, it will store that\n * value for a time determined by the configuration of the `ReplaySubject`, as passed to its constructor.\n *\n * When a new subscriber subscribes to the `ReplaySubject` instance, it will synchronously emit all values in its buffer in\n * a First-In-First-Out (FIFO) manner. The `ReplaySubject` will also complete, if it has observed completion; and it will\n * error if it has observed an error.\n *\n * There are two main configuration items to be concerned with:\n *\n * 1. `bufferSize` - This will determine how many items are stored in the buffer, defaults to infinite.\n * 2. `windowTime` - The amount of time to hold a value in the buffer before removing it from the buffer.\n *\n * Both configurations may exist simultaneously. So if you would like to buffer a maximum of 3 values, as long as the values\n * are less than 2 seconds old, you could do so with a `new ReplaySubject(3, 2000)`.\n *\n * ### Differences with BehaviorSubject\n *\n * `BehaviorSubject` is similar to `new ReplaySubject(1)`, with a couple of exceptions:\n *\n * 1. `BehaviorSubject` comes \"primed\" with a single value upon construction.\n * 2. `ReplaySubject` will replay values, even after observing an error, where `BehaviorSubject` will not.\n *\n * @see {@link Subject}\n * @see {@link BehaviorSubject}\n * @see {@link shareReplay}\n */\nexport class ReplaySubject extends Subject {\n private _buffer: (T | number)[] = [];\n private _infiniteTimeWindow = true;\n\n /**\n * @param bufferSize The size of the buffer to replay on subscription\n * @param windowTime The amount of time the buffered items will stay buffered\n * @param timestampProvider An object with a `now()` method that provides the current timestamp. This is used to\n * calculate the amount of time something has been buffered.\n */\n constructor(\n private _bufferSize = Infinity,\n private _windowTime = Infinity,\n private _timestampProvider: TimestampProvider = dateTimestampProvider\n ) {\n super();\n this._infiniteTimeWindow = _windowTime === Infinity;\n this._bufferSize = Math.max(1, _bufferSize);\n this._windowTime = Math.max(1, _windowTime);\n }\n\n next(value: T): void {\n const { isStopped, _buffer, _infiniteTimeWindow, _timestampProvider, _windowTime } = this;\n if (!isStopped) {\n _buffer.push(value);\n !_infiniteTimeWindow && _buffer.push(_timestampProvider.now() + _windowTime);\n }\n this._trimBuffer();\n super.next(value);\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n this._throwIfClosed();\n this._trimBuffer();\n\n const subscription = this._innerSubscribe(subscriber);\n\n const { _infiniteTimeWindow, _buffer } = this;\n // We use a copy here, so reentrant code does not mutate our array while we're\n // emitting it to a new subscriber.\n const copy = _buffer.slice();\n for (let i = 0; i < copy.length && !subscriber.closed; i += _infiniteTimeWindow ? 1 : 2) {\n subscriber.next(copy[i] as T);\n }\n\n this._checkFinalizedStatuses(subscriber);\n\n return subscription;\n }\n\n private _trimBuffer() {\n const { _bufferSize, _timestampProvider, _buffer, _infiniteTimeWindow } = this;\n // If we don't have an infinite buffer size, and we're over the length,\n // use splice to truncate the old buffer values off. Note that we have to\n // double the size for instances where we're not using an infinite time window\n // because we're storing the values and the timestamps in the same array.\n const adjustedBufferSize = (_infiniteTimeWindow ? 1 : 2) * _bufferSize;\n _bufferSize < Infinity && adjustedBufferSize < _buffer.length && _buffer.splice(0, _buffer.length - adjustedBufferSize);\n\n // Now, if we're not in an infinite time window, remove all values where the time is\n // older than what is allowed.\n if (!_infiniteTimeWindow) {\n const now = _timestampProvider.now();\n let last = 0;\n // Search the array for the first timestamp that isn't expired and\n // truncate the buffer up to that point.\n for (let i = 1; i < _buffer.length && (_buffer[i] as number) <= now; i += 2) {\n last = i;\n }\n last && _buffer.splice(0, last + 1);\n }\n }\n}\n", "import { Scheduler } from '../Scheduler';\nimport { Subscription } from '../Subscription';\nimport { SchedulerAction } from '../types';\n\n/**\n * A unit of work to be executed in a `scheduler`. An action is typically\n * created from within a {@link SchedulerLike} and an RxJS user does not need to concern\n * themselves about creating and manipulating an Action.\n *\n * ```ts\n * class Action extends Subscription {\n * new (scheduler: Scheduler, work: (state?: T) => void);\n * schedule(state?: T, delay: number = 0): Subscription;\n * }\n * ```\n *\n * @class Action\n */\nexport class Action extends Subscription {\n constructor(scheduler: Scheduler, work: (this: SchedulerAction, state?: T) => void) {\n super();\n }\n /**\n * Schedules this action on its parent {@link SchedulerLike} for execution. May be passed\n * some context object, `state`. May happen at some point in the future,\n * according to the `delay` parameter, if specified.\n * @param {T} [state] Some contextual data that the `work` function uses when\n * called by the Scheduler.\n * @param {number} [delay] Time to wait before executing the work, where the\n * time unit is implicit and defined by the Scheduler.\n * @return {void}\n */\n public schedule(state?: T, delay: number = 0): Subscription {\n return this;\n }\n}\n", "import type { TimerHandle } from './timerHandle';\ntype SetIntervalFunction = (handler: () => void, timeout?: number, ...args: any[]) => TimerHandle;\ntype ClearIntervalFunction = (handle: TimerHandle) => void;\n\ninterface IntervalProvider {\n setInterval: SetIntervalFunction;\n clearInterval: ClearIntervalFunction;\n delegate:\n | {\n setInterval: SetIntervalFunction;\n clearInterval: ClearIntervalFunction;\n }\n | undefined;\n}\n\nexport const intervalProvider: IntervalProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n setInterval(handler: () => void, timeout?: number, ...args) {\n const { delegate } = intervalProvider;\n if (delegate?.setInterval) {\n return delegate.setInterval(handler, timeout, ...args);\n }\n return setInterval(handler, timeout, ...args);\n },\n clearInterval(handle) {\n const { delegate } = intervalProvider;\n return (delegate?.clearInterval || clearInterval)(handle as any);\n },\n delegate: undefined,\n};\n", "import { Action } from './Action';\nimport { SchedulerAction } from '../types';\nimport { Subscription } from '../Subscription';\nimport { AsyncScheduler } from './AsyncScheduler';\nimport { intervalProvider } from './intervalProvider';\nimport { arrRemove } from '../util/arrRemove';\nimport { TimerHandle } from './timerHandle';\n\nexport class AsyncAction extends Action {\n public id: TimerHandle | undefined;\n public state?: T;\n // @ts-ignore: Property has no initializer and is not definitely assigned\n public delay: number;\n protected pending: boolean = false;\n\n constructor(protected scheduler: AsyncScheduler, protected work: (this: SchedulerAction, state?: T) => void) {\n super(scheduler, work);\n }\n\n public schedule(state?: T, delay: number = 0): Subscription {\n if (this.closed) {\n return this;\n }\n\n // Always replace the current state with the new state.\n this.state = state;\n\n const id = this.id;\n const scheduler = this.scheduler;\n\n //\n // Important implementation note:\n //\n // Actions only execute once by default, unless rescheduled from within the\n // scheduled callback. This allows us to implement single and repeat\n // actions via the same code path, without adding API surface area, as well\n // as mimic traditional recursion but across asynchronous boundaries.\n //\n // However, JS runtimes and timers distinguish between intervals achieved by\n // serial `setTimeout` calls vs. a single `setInterval` call. An interval of\n // serial `setTimeout` calls can be individually delayed, which delays\n // scheduling the next `setTimeout`, and so on. `setInterval` attempts to\n // guarantee the interval callback will be invoked more precisely to the\n // interval period, regardless of load.\n //\n // Therefore, we use `setInterval` to schedule single and repeat actions.\n // If the action reschedules itself with the same delay, the interval is not\n // canceled. If the action doesn't reschedule, or reschedules with a\n // different delay, the interval will be canceled after scheduled callback\n // execution.\n //\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, delay);\n }\n\n // Set the pending flag indicating that this action has been scheduled, or\n // has recursively rescheduled itself.\n this.pending = true;\n\n this.delay = delay;\n // If this action has already an async Id, don't request a new one.\n this.id = this.id ?? this.requestAsyncId(scheduler, this.id, delay);\n\n return this;\n }\n\n protected requestAsyncId(scheduler: AsyncScheduler, _id?: TimerHandle, delay: number = 0): TimerHandle {\n return intervalProvider.setInterval(scheduler.flush.bind(scheduler, this), delay);\n }\n\n protected recycleAsyncId(_scheduler: AsyncScheduler, id?: TimerHandle, delay: number | null = 0): TimerHandle | undefined {\n // If this action is rescheduled with the same delay time, don't clear the interval id.\n if (delay != null && this.delay === delay && this.pending === false) {\n return id;\n }\n // Otherwise, if the action's delay time is different from the current delay,\n // or the action has been rescheduled before it's executed, clear the interval id\n if (id != null) {\n intervalProvider.clearInterval(id);\n }\n\n return undefined;\n }\n\n /**\n * Immediately executes this action and the `work` it contains.\n * @return {any}\n */\n public execute(state: T, delay: number): any {\n if (this.closed) {\n return new Error('executing a cancelled action');\n }\n\n this.pending = false;\n const error = this._execute(state, delay);\n if (error) {\n return error;\n } else if (this.pending === false && this.id != null) {\n // Dequeue if the action didn't reschedule itself. Don't call\n // unsubscribe(), because the action could reschedule later.\n // For example:\n // ```\n // scheduler.schedule(function doWork(counter) {\n // /* ... I'm a busy worker bee ... */\n // var originalAction = this;\n // /* wait 100ms before rescheduling the action */\n // setTimeout(function () {\n // originalAction.schedule(counter + 1);\n // }, 100);\n // }, 1000);\n // ```\n this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n }\n }\n\n protected _execute(state: T, _delay: number): any {\n let errored: boolean = false;\n let errorValue: any;\n try {\n this.work(state);\n } catch (e) {\n errored = true;\n // HACK: Since code elsewhere is relying on the \"truthiness\" of the\n // return here, we can't have it return \"\" or 0 or false.\n // TODO: Clean this up when we refactor schedulers mid-version-8 or so.\n errorValue = e ? e : new Error('Scheduled action threw falsy error');\n }\n if (errored) {\n this.unsubscribe();\n return errorValue;\n }\n }\n\n unsubscribe() {\n if (!this.closed) {\n const { id, scheduler } = this;\n const { actions } = scheduler;\n\n this.work = this.state = this.scheduler = null!;\n this.pending = false;\n\n arrRemove(actions, this);\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, null);\n }\n\n this.delay = null!;\n super.unsubscribe();\n }\n }\n}\n", "import { Action } from './scheduler/Action';\nimport { Subscription } from './Subscription';\nimport { SchedulerLike, SchedulerAction } from './types';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\n\n/**\n * An execution context and a data structure to order tasks and schedule their\n * execution. Provides a notion of (potentially virtual) time, through the\n * `now()` getter method.\n *\n * Each unit of work in a Scheduler is called an `Action`.\n *\n * ```ts\n * class Scheduler {\n * now(): number;\n * schedule(work, delay?, state?): Subscription;\n * }\n * ```\n *\n * @class Scheduler\n * @deprecated Scheduler is an internal implementation detail of RxJS, and\n * should not be used directly. Rather, create your own class and implement\n * {@link SchedulerLike}. Will be made internal in v8.\n */\nexport class Scheduler implements SchedulerLike {\n public static now: () => number = dateTimestampProvider.now;\n\n constructor(private schedulerActionCtor: typeof Action, now: () => number = Scheduler.now) {\n this.now = now;\n }\n\n /**\n * A getter method that returns a number representing the current time\n * (at the time this function was called) according to the scheduler's own\n * internal clock.\n * @return {number} A number that represents the current time. May or may not\n * have a relation to wall-clock time. May or may not refer to a time unit\n * (e.g. milliseconds).\n */\n public now: () => number;\n\n /**\n * Schedules a function, `work`, for execution. May happen at some point in\n * the future, according to the `delay` parameter, if specified. May be passed\n * some context object, `state`, which will be passed to the `work` function.\n *\n * The given arguments will be processed an stored as an Action object in a\n * queue of actions.\n *\n * @param {function(state: ?T): ?Subscription} work A function representing a\n * task, or some unit of work to be executed by the Scheduler.\n * @param {number} [delay] Time to wait before executing the work, where the\n * time unit is implicit and defined by the Scheduler itself.\n * @param {T} [state] Some contextual data that the `work` function uses when\n * called by the Scheduler.\n * @return {Subscription} A subscription in order to be able to unsubscribe\n * the scheduled work.\n */\n public schedule(work: (this: SchedulerAction, state?: T) => void, delay: number = 0, state?: T): Subscription {\n return new this.schedulerActionCtor(this, work).schedule(state, delay);\n }\n}\n", "import { Scheduler } from '../Scheduler';\nimport { Action } from './Action';\nimport { AsyncAction } from './AsyncAction';\nimport { TimerHandle } from './timerHandle';\n\nexport class AsyncScheduler extends Scheduler {\n public actions: Array> = [];\n /**\n * A flag to indicate whether the Scheduler is currently executing a batch of\n * queued actions.\n * @type {boolean}\n * @internal\n */\n public _active: boolean = false;\n /**\n * An internal ID used to track the latest asynchronous task such as those\n * coming from `setTimeout`, `setInterval`, `requestAnimationFrame`, and\n * others.\n * @type {any}\n * @internal\n */\n public _scheduled: TimerHandle | undefined;\n\n constructor(SchedulerAction: typeof Action, now: () => number = Scheduler.now) {\n super(SchedulerAction, now);\n }\n\n public flush(action: AsyncAction): void {\n const { actions } = this;\n\n if (this._active) {\n actions.push(action);\n return;\n }\n\n let error: any;\n this._active = true;\n\n do {\n if ((error = action.execute(action.state, action.delay))) {\n break;\n }\n } while ((action = actions.shift()!)); // exhaust the scheduler queue\n\n this._active = false;\n\n if (error) {\n while ((action = actions.shift()!)) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n", "import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\n\n/**\n *\n * Async Scheduler\n *\n * Schedule task as if you used setTimeout(task, duration)\n *\n * `async` scheduler schedules tasks asynchronously, by putting them on the JavaScript\n * event loop queue. It is best used to delay tasks in time or to schedule tasks repeating\n * in intervals.\n *\n * If you just want to \"defer\" task, that is to perform it right after currently\n * executing synchronous code ends (commonly achieved by `setTimeout(deferredTask, 0)`),\n * better choice will be the {@link asapScheduler} scheduler.\n *\n * ## Examples\n * Use async scheduler to delay task\n * ```ts\n * import { asyncScheduler } from 'rxjs';\n *\n * const task = () => console.log('it works!');\n *\n * asyncScheduler.schedule(task, 2000);\n *\n * // After 2 seconds logs:\n * // \"it works!\"\n * ```\n *\n * Use async scheduler to repeat task in intervals\n * ```ts\n * import { asyncScheduler } from 'rxjs';\n *\n * function task(state) {\n * console.log(state);\n * this.schedule(state + 1, 1000); // `this` references currently executing Action,\n * // which we reschedule with new state and delay\n * }\n *\n * asyncScheduler.schedule(task, 3000, 0);\n *\n * // Logs:\n * // 0 after 3s\n * // 1 after 4s\n * // 2 after 5s\n * // 3 after 6s\n * ```\n */\n\nexport const asyncScheduler = new AsyncScheduler(AsyncAction);\n\n/**\n * @deprecated Renamed to {@link asyncScheduler}. Will be removed in v8.\n */\nexport const async = asyncScheduler;\n", "import { AsyncAction } from './AsyncAction';\nimport { Subscription } from '../Subscription';\nimport { QueueScheduler } from './QueueScheduler';\nimport { SchedulerAction } from '../types';\nimport { TimerHandle } from './timerHandle';\n\nexport class QueueAction extends AsyncAction {\n constructor(protected scheduler: QueueScheduler, protected work: (this: SchedulerAction, state?: T) => void) {\n super(scheduler, work);\n }\n\n public schedule(state?: T, delay: number = 0): Subscription {\n if (delay > 0) {\n return super.schedule(state, delay);\n }\n this.delay = delay;\n this.state = state;\n this.scheduler.flush(this);\n return this;\n }\n\n public execute(state: T, delay: number): any {\n return delay > 0 || this.closed ? super.execute(state, delay) : this._execute(state, delay);\n }\n\n protected requestAsyncId(scheduler: QueueScheduler, id?: TimerHandle, delay: number = 0): TimerHandle {\n // If delay exists and is greater than 0, or if the delay is null (the\n // action wasn't rescheduled) but was originally scheduled as an async\n // action, then recycle as an async action.\n\n if ((delay != null && delay > 0) || (delay == null && this.delay > 0)) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n\n // Otherwise flush the scheduler starting with this action.\n scheduler.flush(this);\n\n // HACK: In the past, this was returning `void`. However, `void` isn't a valid\n // `TimerHandle`, and generally the return value here isn't really used. So the\n // compromise is to return `0` which is both \"falsy\" and a valid `TimerHandle`,\n // as opposed to refactoring every other instanceo of `requestAsyncId`.\n return 0;\n }\n}\n", "import { AsyncScheduler } from './AsyncScheduler';\n\nexport class QueueScheduler extends AsyncScheduler {\n}\n", "import { QueueAction } from './QueueAction';\nimport { QueueScheduler } from './QueueScheduler';\n\n/**\n *\n * Queue Scheduler\n *\n * Put every next task on a queue, instead of executing it immediately\n *\n * `queue` scheduler, when used with delay, behaves the same as {@link asyncScheduler} scheduler.\n *\n * When used without delay, it schedules given task synchronously - executes it right when\n * it is scheduled. However when called recursively, that is when inside the scheduled task,\n * another task is scheduled with queue scheduler, instead of executing immediately as well,\n * that task will be put on a queue and wait for current one to finish.\n *\n * This means that when you execute task with `queue` scheduler, you are sure it will end\n * before any other task scheduled with that scheduler will start.\n *\n * ## Examples\n * Schedule recursively first, then do something\n * ```ts\n * import { queueScheduler } from 'rxjs';\n *\n * queueScheduler.schedule(() => {\n * queueScheduler.schedule(() => console.log('second')); // will not happen now, but will be put on a queue\n *\n * console.log('first');\n * });\n *\n * // Logs:\n * // \"first\"\n * // \"second\"\n * ```\n *\n * Reschedule itself recursively\n * ```ts\n * import { queueScheduler } from 'rxjs';\n *\n * queueScheduler.schedule(function(state) {\n * if (state !== 0) {\n * console.log('before', state);\n * this.schedule(state - 1); // `this` references currently executing Action,\n * // which we reschedule with new state\n * console.log('after', state);\n * }\n * }, 0, 3);\n *\n * // In scheduler that runs recursively, you would expect:\n * // \"before\", 3\n * // \"before\", 2\n * // \"before\", 1\n * // \"after\", 1\n * // \"after\", 2\n * // \"after\", 3\n *\n * // But with queue it logs:\n * // \"before\", 3\n * // \"after\", 3\n * // \"before\", 2\n * // \"after\", 2\n * // \"before\", 1\n * // \"after\", 1\n * ```\n */\n\nexport const queueScheduler = new QueueScheduler(QueueAction);\n\n/**\n * @deprecated Renamed to {@link queueScheduler}. Will be removed in v8.\n */\nexport const queue = queueScheduler;\n", "import { AsyncAction } from './AsyncAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nimport { SchedulerAction } from '../types';\nimport { animationFrameProvider } from './animationFrameProvider';\nimport { TimerHandle } from './timerHandle';\n\nexport class AnimationFrameAction extends AsyncAction {\n constructor(protected scheduler: AnimationFrameScheduler, protected work: (this: SchedulerAction, state?: T) => void) {\n super(scheduler, work);\n }\n\n protected requestAsyncId(scheduler: AnimationFrameScheduler, id?: TimerHandle, delay: number = 0): TimerHandle {\n // If delay is greater than 0, request as an async action.\n if (delay !== null && delay > 0) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n // Push the action to the end of the scheduler queue.\n scheduler.actions.push(this);\n // If an animation frame has already been requested, don't request another\n // one. If an animation frame hasn't been requested yet, request one. Return\n // the current animation frame request id.\n return scheduler._scheduled || (scheduler._scheduled = animationFrameProvider.requestAnimationFrame(() => scheduler.flush(undefined)));\n }\n\n protected recycleAsyncId(scheduler: AnimationFrameScheduler, id?: TimerHandle, delay: number = 0): TimerHandle | undefined {\n // If delay exists and is greater than 0, or if the delay is null (the\n // action wasn't rescheduled) but was originally scheduled as an async\n // action, then recycle as an async action.\n if (delay != null ? delay > 0 : this.delay > 0) {\n return super.recycleAsyncId(scheduler, id, delay);\n }\n // If the scheduler queue has no remaining actions with the same async id,\n // cancel the requested animation frame and set the scheduled flag to\n // undefined so the next AnimationFrameAction will request its own.\n const { actions } = scheduler;\n if (id != null && actions[actions.length - 1]?.id !== id) {\n animationFrameProvider.cancelAnimationFrame(id as number);\n scheduler._scheduled = undefined;\n }\n // Return undefined so the action knows to request a new async id if it's rescheduled.\n return undefined;\n }\n}\n", "import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\n\nexport class AnimationFrameScheduler extends AsyncScheduler {\n public flush(action?: AsyncAction): void {\n this._active = true;\n // The async id that effects a call to flush is stored in _scheduled.\n // Before executing an action, it's necessary to check the action's async\n // id to determine whether it's supposed to be executed in the current\n // flush.\n // Previous implementations of this method used a count to determine this,\n // but that was unsound, as actions that are unsubscribed - i.e. cancelled -\n // are removed from the actions array and that can shift actions that are\n // scheduled to be executed in a subsequent flush into positions at which\n // they are executed within the current flush.\n const flushId = this._scheduled;\n this._scheduled = undefined;\n\n const { actions } = this;\n let error: any;\n action = action || actions.shift()!;\n\n do {\n if ((error = action.execute(action.state, action.delay))) {\n break;\n }\n } while ((action = actions[0]) && action.id === flushId && actions.shift());\n\n this._active = false;\n\n if (error) {\n while ((action = actions[0]) && action.id === flushId && actions.shift()) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n", "import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\n\n/**\n *\n * Animation Frame Scheduler\n *\n * Perform task when `window.requestAnimationFrame` would fire\n *\n * When `animationFrame` scheduler is used with delay, it will fall back to {@link asyncScheduler} scheduler\n * behaviour.\n *\n * Without delay, `animationFrame` scheduler can be used to create smooth browser animations.\n * It makes sure scheduled task will happen just before next browser content repaint,\n * thus performing animations as efficiently as possible.\n *\n * ## Example\n * Schedule div height animation\n * ```ts\n * // html:
\n * import { animationFrameScheduler } from 'rxjs';\n *\n * const div = document.querySelector('div');\n *\n * animationFrameScheduler.schedule(function(height) {\n * div.style.height = height + \"px\";\n *\n * this.schedule(height + 1); // `this` references currently executing Action,\n * // which we reschedule with new state\n * }, 0, 0);\n *\n * // You will see a div element growing in height\n * ```\n */\n\nexport const animationFrameScheduler = new AnimationFrameScheduler(AnimationFrameAction);\n\n/**\n * @deprecated Renamed to {@link animationFrameScheduler}. Will be removed in v8.\n */\nexport const animationFrame = animationFrameScheduler;\n", "import { Observable } from '../Observable';\nimport { SchedulerLike } from '../types';\n\n/**\n * A simple Observable that emits no items to the Observer and immediately\n * emits a complete notification.\n *\n * Just emits 'complete', and nothing else.\n *\n * ![](empty.png)\n *\n * A simple Observable that only emits the complete notification. It can be used\n * for composing with other Observables, such as in a {@link mergeMap}.\n *\n * ## Examples\n *\n * Log complete notification\n *\n * ```ts\n * import { EMPTY } from 'rxjs';\n *\n * EMPTY.subscribe({\n * next: () => console.log('Next'),\n * complete: () => console.log('Complete!')\n * });\n *\n * // Outputs\n * // Complete!\n * ```\n *\n * Emit the number 7, then complete\n *\n * ```ts\n * import { EMPTY, startWith } from 'rxjs';\n *\n * const result = EMPTY.pipe(startWith(7));\n * result.subscribe(x => console.log(x));\n *\n * // Outputs\n * // 7\n * ```\n *\n * Map and flatten only odd numbers to the sequence `'a'`, `'b'`, `'c'`\n *\n * ```ts\n * import { interval, mergeMap, of, EMPTY } from 'rxjs';\n *\n * const interval$ = interval(1000);\n * const result = interval$.pipe(\n * mergeMap(x => x % 2 === 1 ? of('a', 'b', 'c') : EMPTY),\n * );\n * result.subscribe(x => console.log(x));\n *\n * // Results in the following to the console:\n * // x is equal to the count on the interval, e.g. (0, 1, 2, 3, ...)\n * // x will occur every 1000ms\n * // if x % 2 is equal to 1, print a, b, c (each on its own)\n * // if x % 2 is not equal to 1, nothing will be output\n * ```\n *\n * @see {@link Observable}\n * @see {@link NEVER}\n * @see {@link of}\n * @see {@link throwError}\n */\nexport const EMPTY = new Observable((subscriber) => subscriber.complete());\n\n/**\n * @param scheduler A {@link SchedulerLike} to use for scheduling\n * the emission of the complete notification.\n * @deprecated Replaced with the {@link EMPTY} constant or {@link scheduled} (e.g. `scheduled([], scheduler)`). Will be removed in v8.\n */\nexport function empty(scheduler?: SchedulerLike) {\n return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\n\nfunction emptyScheduled(scheduler: SchedulerLike) {\n return new Observable((subscriber) => scheduler.schedule(() => subscriber.complete()));\n}\n", "import { SchedulerLike } from '../types';\nimport { isFunction } from './isFunction';\n\nexport function isScheduler(value: any): value is SchedulerLike {\n return value && isFunction(value.schedule);\n}\n", "import { SchedulerLike } from '../types';\nimport { isFunction } from './isFunction';\nimport { isScheduler } from './isScheduler';\n\nfunction last(arr: T[]): T | undefined {\n return arr[arr.length - 1];\n}\n\nexport function popResultSelector(args: any[]): ((...args: unknown[]) => unknown) | undefined {\n return isFunction(last(args)) ? args.pop() : undefined;\n}\n\nexport function popScheduler(args: any[]): SchedulerLike | undefined {\n return isScheduler(last(args)) ? args.pop() : undefined;\n}\n\nexport function popNumber(args: any[], defaultValue: number): number {\n return typeof last(args) === 'number' ? args.pop()! : defaultValue;\n}\n", "export const isArrayLike = ((x: any): x is ArrayLike => x && typeof x.length === 'number' && typeof x !== 'function');", "import { isFunction } from \"./isFunction\";\n\n/**\n * Tests to see if the object is \"thennable\".\n * @param value the object to test\n */\nexport function isPromise(value: any): value is PromiseLike {\n return isFunction(value?.then);\n}\n", "import { InteropObservable } from '../types';\nimport { observable as Symbol_observable } from '../symbol/observable';\nimport { isFunction } from './isFunction';\n\n/** Identifies an input as being Observable (but not necessary an Rx Observable) */\nexport function isInteropObservable(input: any): input is InteropObservable {\n return isFunction(input[Symbol_observable]);\n}\n", "import { isFunction } from './isFunction';\n\nexport function isAsyncIterable(obj: any): obj is AsyncIterable {\n return Symbol.asyncIterator && isFunction(obj?.[Symbol.asyncIterator]);\n}\n", "/**\n * Creates the TypeError to throw if an invalid object is passed to `from` or `scheduled`.\n * @param input The object that was passed.\n */\nexport function createInvalidObservableTypeError(input: any) {\n // TODO: We should create error codes that can be looked up, so this can be less verbose.\n return new TypeError(\n `You provided ${\n input !== null && typeof input === 'object' ? 'an invalid object' : `'${input}'`\n } where a stream was expected. You can provide an Observable, Promise, ReadableStream, Array, AsyncIterable, or Iterable.`\n );\n}\n", "export function getSymbolIterator(): symbol {\n if (typeof Symbol !== 'function' || !Symbol.iterator) {\n return '@@iterator' as any;\n }\n\n return Symbol.iterator;\n}\n\nexport const iterator = getSymbolIterator();\n", "import { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { isFunction } from './isFunction';\n\n/** Identifies an input as being an Iterable */\nexport function isIterable(input: any): input is Iterable {\n return isFunction(input?.[Symbol_iterator]);\n}\n", "import { ReadableStreamLike } from '../types';\nimport { isFunction } from './isFunction';\n\nexport async function* readableStreamLikeToAsyncGenerator(readableStream: ReadableStreamLike): AsyncGenerator {\n const reader = readableStream.getReader();\n try {\n while (true) {\n const { value, done } = await reader.read();\n if (done) {\n return;\n }\n yield value!;\n }\n } finally {\n reader.releaseLock();\n }\n}\n\nexport function isReadableStreamLike(obj: any): obj is ReadableStreamLike {\n // We don't want to use instanceof checks because they would return\n // false for instances from another Realm, like an + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+
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+ + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/cmd/index.html b/cmd/index.html new file mode 100644 index 0000000..14ae14d --- /dev/null +++ b/cmd/index.html @@ -0,0 +1,798 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Command line - Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Command line

+
Scaffolder - generate 3D scaffold from STL file
+Usage:
+  Scaffolder [OPTION...] INPUT OUTPUT PARAMETERS
+
+  -h, --help                    Print help
+  -i, --input INPUT             Input file (STL/PLY/OFF/OBJ/VMI)
+  -o, --output OUTPUT           Output filename with extension
+                                stl,ply,obj,off,ctm
+      --params PARAMETERS       Combined parameters list:
+                                surface[,coff,isolevel,grid_size,k_slice,k_polygon]
+  -q, --quiet                   Disable verbose output [default: false]
+  -c, --coff DOUBLE             Angular frequency (pore size adjustment)
+                                default:PI
+  -t, --isolevel DOUBLE         isolevel (porosity adjustment) [default: 0]
+  -n, --surface NAME            implicit surface: rectlinear, schwarzp,
+                                schwarzd, gyroid, double-p, double-d,
+                                double-gyroiod, lidinoid, schoen_iwp, neovius, bcc,
+                                tubular_g_ab, tubular_g_c (default: bcc)
+  -g, --grid_size INT (0..60000)
+                                Grid size [default: 100]
+  -s, --shell INT (0..60000)    Outer thickness (layers) [default:0]
+      --grid_offset INT (0..60000)
+                                [default:3]
+  -m, --microstructure          Analysis microstructure with Slice contour
+                                technique ( [default: false]
+      --export_microstructure   Analysis microstructure and export the 2D
+                                contours (for debugging) [default: false]
+      --export_jpeg [X|Y|Z],INT
+                                Export 2D JPEG (Default: Z,100)
+      --k_slice INT (0..60000)  K_slice: the number of slicing layers in each
+                                direction (used in microstructure analysis)
+                                (default: 100)
+      --k_polygon INT (>0)      K_polygon: the number of closest outer
+                                contour (used in microstructure analysis) (default:
+                                4)
+  -z, --size_optimize DOUBLE (0..1)
+                                Experimental Quadric simplification (default:
+                                0)
+      --smooth_step INT (0..60000)
+                                Smooth with laplacian (default: 0)
+      --dirty                   Disable autoclean
+      --minimum_diameter DOUBLE (0..1)
+                                used for removing small orphaned (between
+                                0-1) (default: 0.25)
+      --format FORMAT (default, csv)
+                                Format of logging output (default: default)
+      --output_inverse          additional output inverse scaffold
+      --fix_self_intersect INT  Experimental fix self-intersect faces
+                                (default: 0)
+      --mean_curvature INT      Size of mean curvature histogram (default: 0)
+      --no_intersect            Generate 3D mesh without intersect with
+                                original mesh (false)
+
+

Examples

+
    +
  • +

    Generated BCC scaffold with \(w=\pi\), \(t=0\), and \(grid\_size=100\) +

      Scaffolder input.stl output.stl bcc,3.14159,0,100
+

    +
    • +
  • +

    Generated custom implicit function (declaired in custom.lua) with \(w=\pi\), \(t=0\), +\(grid\_size=100\), \(k_{slice}=100\), \(k_{polygon}=4\) and evaluated scaffold properties +

      Scaffolder input.stl output.stl custom.lua,3.14159,0,100,100,4 -m
+

    +
    • +
  • +

    Generated and evaluated BCC scaffold (\(w=3.14159\), \(t=0\)) and reported in CSV +

    Scaffolder input.stl output.stl bcc,3.14159,0 -m -q --format csv
+

    +
    • +
+

Custom implicit function

+

If the built-in functions (rectlinear, schwarzp, schwarzd, gyroid, double-p, double-d, double-gyroiod, lidinoid, +schoen_iwp, neovius, bcc, tubular_g_ab, tubular_g_c) was not satisfied, the custom implicit function can be used +by creating a lua file and define the "surface" function that return the FRep

+
-- custom.lua 
+-- define gyroid with
+function surface (x, y, z)
+    return -(sin(x) * cos(y) + sin(y) * cos(z) + sin(z) * cos(x) - params.isolevel)
+end
+
+

The special symbols can be used in lua file: +

  params = { coff, isolevel, k_splice, k_polygon }
+  bbox = { min, max, length, grid_density }
+  winding(x,y,z) -- function returning the winding number of position x,y,z
+  signed_distance(x,y,z) -- function returning signed distance of position x,y,z
+
+and also all functions in math module

+ + + + + + + + + + + + + +
+
+ + + +
+ + + +
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+ + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/extra.css b/extra.css new file mode 100644 index 0000000..b56c3c8 --- /dev/null +++ b/extra.css @@ -0,0 +1,46 @@ +:root > * { + --md-code-hl-color: #b1f1fc; +} +.md-footer { + --md-footer-fg-color: #000; + --md-footer-fg-color--light: hsla(0,100%,0%,0.7); + --md-footer-fg-color--lighter: hsla(0,100%,0%,0.3); + --md-footer-bg-color: #f9f9f9; + --md-footer-bg-color--dark: #333; +} +.md-header { + background-color:var(--md-default-bg-color); + color: var(--md-default-fg-color); +} +.md-footer-copyright { + color: #888; +} +html .md-footer-meta.md-typeset a, html .md-footer-meta.md-typeset a:hover { + color: #fff; +} +.md-search__form { + background-color: var(--md-default-fg-color--lightest); +} +.md-search__form:hover { + background-color: var(--md-default-fg-color--light); +} +.md-search__input+.md-search__icon, +.md-search__input::placeholder { + color: var(--md-default-fg-color--lighter); +} + +.md-search__form:hover .md-search__input+.md-search__icon, +.md-search__form:hover .md-search__input::placeholder { + color: var(--md-default-bg-color); +} +.md-typeset h1 { + color: var(--md-primary-fg-color--dark); +} + +.md-typeset h2 { + color: var(--md-primary-fg-color--dark); +} + +.md-typeset p { + text-align: justify; +} \ No newline at end of file diff --git a/images/blender-plugin.gif b/images/blender-plugin.gif new file mode 100644 index 0000000..9292686 Binary files /dev/null and b/images/blender-plugin.gif differ diff --git a/images/blender.jpg b/images/blender.jpg new file mode 100644 index 0000000..7d98bed Binary files /dev/null and b/images/blender.jpg differ diff --git a/images/examples.jpg b/images/examples.jpg new file mode 100644 index 0000000..bdbd3b9 Binary files /dev/null and b/images/examples.jpg differ diff --git a/images/feret.png b/images/feret.png new file mode 100644 index 0000000..6017b82 Binary files /dev/null and b/images/feret.png differ diff --git a/images/patterns.jpg b/images/patterns.jpg new file mode 100644 index 0000000..e682200 Binary files /dev/null and b/images/patterns.jpg differ diff --git a/images/scaffolder_logo.jpg b/images/scaffolder_logo.jpg new file mode 100644 index 0000000..54b0441 Binary files /dev/null and b/images/scaffolder_logo.jpg differ diff --git a/images/scaffolder_logo.png b/images/scaffolder_logo.png new file mode 100644 index 0000000..2a60bb1 Binary files /dev/null and b/images/scaffolder_logo.png differ diff --git a/images/scaffolder_logo.svg b/images/scaffolder_logo.svg new file mode 100644 index 0000000..503d6d7 --- /dev/null +++ b/images/scaffolder_logo.svg @@ -0,0 +1,846 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + image/svg+xml + + + + + + + Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + porous scaffold + TPMS + Input 3D model + + + + + + + + + + diff --git a/images/scaffolder_logo_fit.png b/images/scaffolder_logo_fit.png new file mode 100644 index 0000000..b0821b8 Binary files /dev/null and b/images/scaffolder_logo_fit.png differ diff --git a/images/tip_gyroid1.jpg b/images/tip_gyroid1.jpg new file mode 100644 index 0000000..9d75a60 Binary files /dev/null and b/images/tip_gyroid1.jpg differ diff --git a/includes/abbreviations/index.html b/includes/abbreviations/index.html new file mode 100644 index 0000000..f40d6b1 --- /dev/null +++ b/includes/abbreviations/index.html @@ -0,0 +1,614 @@ + + + + + + + + + + + + + + + + + + + + + Abbreviations - Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/index.html b/index.html new file mode 100644 index 0000000..a445971 --- /dev/null +++ b/index.html @@ -0,0 +1,762 @@ + + + + + + + + + + + + + + + + + + + + + + + Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Scaffolder

+
+ +
+ +

The triply periodic minimal surface (TPMS) topology is beautiful. +They constructed from a mathematical implicit function \(f(x,y,z)=0\) and resulted in 3D mesh by Marching cubes. However, the creating process of a TPMS mesh from a complex shape like human bone is quite complicated. +"Scaffolder" offers the easy solution via commandline, Python API, and Blender plugins.

+

Applications

+
    +
  • Volumetric CAD
    • +
  • Surface visualization
    • +
  • Multi-morphology porous scaffold design
    • +
  • Porous bone implant design
    • +
  • Finite element analysis (FEA)
    • +
+

How it works

+
    +
  • Read STL file and finding the boundary box
    • +
  • Generate the grid and calculate the winding number with STL mesh
    • +
  • Generate the 3D isosurface field
    • +
  • Perform Dual marching cube to construct the 3D mesh
    • +
  • Clean up the duplicated vertices or faces, and abandon the group of connected faces having the diameter below the setting
    • +
  • Export to the target 3D format
    • +
+

Citation

+

Computational method and program for generating a porous scaffold based on implicit surfaces +

@article{IAMSAMANG2021106088,
+title = {Computational method and program for generating a porous scaffold based on implicit surfaces},
+journal = {Computer Methods and Programs in Biomedicine},
+volume = {205},
+pages = {106088},
+year = {2021},
+issn = {0169-2607},
+doi = {https://doi.org/10.1016/j.cmpb.2021.106088},
+url = {https://www.sciencedirect.com/science/article/pii/S0169260721001632},
+author = {Jirawat Iamsamang and Phornphop Naiyanetr},
+keywords = {Triply periodic minimal surface (TPMS), Implicit surface, Porous scaffold, Pore size, Porosity}
+}
+

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+ + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/installation/index.html b/installation/index.html new file mode 100644 index 0000000..d5a9e74 --- /dev/null +++ b/installation/index.html @@ -0,0 +1,863 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Installation - Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Installation

+

Scaffolder supports the command-line usage by standalone program, python scripting via PyPI, and blender by python-wrapped plugin.

+

Standalone program

+

The binary programs for various platforms are automatically built and deposited on the public repository: Github and Anaconda.

+

Github

+
    +
  1. Download bin64.zip from Github Releases page
    2. +
  2. Extract bin64.zip which contains the following files: +
    ├───macos
+│       PyScaffolder.cpython-39-darwin.so
+│       Scaffolder
+│       Scaffolder.SliceTest
+│
+├───ubuntu
+│       PyScaffolder.cpython-36m-x86_64-linux-gnu.so
+│       Scaffolder
+│       Scaffolder.SliceTest
+│
+└───windows
+    └───Release
+            PyScaffolder.cp37-win_amd64.pyd
+            PyScaffolder.exp
+            PyScaffolder.lib
+            Scaffolder.exe
+            Scaffolder.SliceTest.exe
+
    3. +
  3. Open command line at the directory according to your platform, such as windows/Release for window.
    4. +
  4. Test the program with --help +
    Scaffolder --help
+Scaffolder.SliceTest --help
+
    5. +
+
+

Note

+

PyScaffolder.cpython-<python_version>-<platform> is a compiled python bytecode that can import to a python script as a module (see Python supports).

+
+

Anaconda

+
    +
  1. Install Anaconda or miniconda
    2. +
  2. Conda can manage the environments and revisions, then:
      +
    • If you want to install Scaffolder into current environment, use: + 
      conda install -c nodtem66 scaffolder
+
      • +
    • If you want to install Scaffolder into a new environment due to the conflicted from some dependencies, use: + 
      conda install -n new_env -c nodtem66 scaffolder
+conda activate new_env
+
      • +
    +
    3. +
  3. Test the program with --help +
    Scaffolder --help
+Scaffolder.SliceTest --help
+
    4. +
+

Python supports

+

The current version of Scaffolder supports python 3.6, 3.7, 3.8, and 3.9 with only x86_64 platform on:

+
    +
  • Window 10 (didn't test with the older version)
    • +
  • Linux
    • +
  • OSX 10
    • +
+
+

Note

+

see the list of available version at PyPI

+
+

Then install via pip +

pip install PyScaffolder
+

+

The following script is an example usage of PyScaffolder. +

import PyScaffolder
+
+# Load vertices and faces of a 20mm cube
+v = [
+    [0.0, 0.0, 0.0],
+    [20.0, 0.0, 0.0],
+    [0.0, -20.0, 0.0],
+    [20.0, -20.0, 0.0],
+    [0.0, 0.0, 20.0],
+    [20.0, 0.0, 20.0],
+    [0.0, -20.0, 20.0],
+    [20.0, -20.0, 20.0]
+]
+
+f = [
+    [1, 2, 0],
+    [2, 1, 3],
+    [7, 2, 3],
+    [2, 7, 6],
+    [1, 7, 3],
+    [7, 1, 5],
+    [7, 4, 6],
+    [4, 7, 5],
+    [4, 2, 6],
+    [2, 4, 0],
+    [4, 1, 0],
+    [1, 4, 5]
+]
+print("Vertices: ", len(v))
+print("Faces: ", len(f))
+
+# Test Slice test with all direction
+a = PyScaffolder.slice_test(v, f, direction=3)
+print(len(a.minFeret))
+
+# Set default parameter
+params = PyScaffolder.Parameter()
+params.coff = 1.0
+
+# Test the mesh generation from v,f
+a = PyScaffolder.generate_scaffold(v, f, params)
+print(a.porosity)
+print(a.surface_area_ratio)
+print(len(a.v), len(a.f))
+

+

See Python API for details.

+

Blender addon

+
    +
  1. Download Scaffolder-blender.zip from Github, which contains following files (see also /blender): +
    └───Scaffolder
+    SCAFFOLDER_OP_generate_mesh.py
+    SCAFFOLDER_OP_slice_test.py
+    SCAFFOLDER_PT_generate_mesh.py
+    SCAFFOLDER_PT_slice_test.py
+    SCAFFOLDER_settings.py
+    utils.py
+    __init__.py
+
    2. +
  2. Open Blender > Edit > Preferences > Add-ons > Install, select Scaffolder-blender.zip, and check the box to enable it.
    3. +
  3. Press N or View > Sidebar. Then Scaffolder will be found in one tab of a sidebar.
    4. +
+

See Blender plugin for video and more information.

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+
+
+ + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/javascripts/extra.js b/javascripts/extra.js new file mode 100644 index 0000000..131bde5 --- /dev/null +++ b/javascripts/extra.js @@ -0,0 +1,18 @@ +window.MathJax = { + loader: {load: ['[tex]/upgreek']}, + tex: { + inlineMath: [["\\(", "\\)"]], + displayMath: [["\\[", "\\]"]], + processEscapes: true, + processEnvironments: true, + packages: {'[+]': ['upgreek']} + }, + options: { + ignoreHtmlClass: ".*|", + processHtmlClass: "arithmatex" + } +}; + +document$.subscribe(() => { + //MathJax.typesetPromise() +}) \ No newline at end of file diff --git a/jupyter/TPMS.ipynb b/jupyter/TPMS.ipynb new file mode 100644 index 0000000..15c5bae --- /dev/null +++ b/jupyter/TPMS.ipynb @@ -0,0 +1,386 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": { + "id": "C2P7XZxz0Wtd" + }, + "source": [ + "# TPMS with SDF and PyScaffolder\n", + "Author: [Jirawat Iamsamang](https://github.com/nodtem66) \n", + "\n", + "## Abstract\n", + "SDF provides a class for discretizing and visualizing any implicit surfaces. The basic topologies (e.g. sphere, box) are already defined.\n", + "This notebook shows how to utilize this library to generate gyroid surface.\n", + "\n", + "## Installation\n", + "* Currently, SDF is not in PyPI. So the [github of SDF](https://github.com/fogleman/sdf) needs to clone into local computer. See [Installation](https://github.com/fogleman/sdf#installation)\n", + "* PyScaffolder can be installed by `pip install PyScaffolder`\n" + ] + }, + { + "cell_type": "code", + "source": [ + "!git clone https://github.com/fogleman/sdf\n", + "!pip install PyScaffolder" + ], + "metadata": { + "id": "k1QuoXni0wXJ", + "outputId": "d8ced732-dea3-42b9-dddb-b5b25d49716a", + "colab": { + "base_uri": "https://localhost:8080/" + } + }, + "execution_count": null, + "outputs": [ + { + "output_type": "stream", + "name": "stdout", + "text": [ + "Cloning into 'sdf'...\n", + "remote: Enumerating objects: 861, done.\u001b[K\n", + "remote: Counting objects: 100% (848/848), done.\u001b[K\n", + "remote: Compressing objects: 100% (409/409), done.\u001b[K\n", + "remote: Total 861 (delta 448), reused 818 (delta 433), pack-reused 13\u001b[K\n", + "Receiving objects: 100% (861/861), 8.26 MiB | 8.67 MiB/s, done.\n", + "Resolving deltas: 100% (448/448), done.\n", + "Looking in indexes: https://pypi.org/simple, https://us-python.pkg.dev/colab-wheels/public/simple/\n", + "Collecting PyScaffolder\n", + " Downloading PyScaffolder-1.5.2-cp39-cp39-manylinux_2_12_x86_64.manylinux2010_x86_64.whl (786 kB)\n", + "\u001b[2K \u001b[90m━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\u001b[0m \u001b[32m786.4/786.4 kB\u001b[0m \u001b[31m11.5 MB/s\u001b[0m eta \u001b[36m0:00:00\u001b[0m\n", + "\u001b[?25hInstalling collected packages: PyScaffolder\n", + "Successfully installed PyScaffolder-1.5.2\n" + ] + } + ] + }, + { + "cell_type": "markdown", + "source": [ + "## The implicit function of TPMS\n", + "\n", + "Name\t| F(x,y,z) \n", + "--- | --- \n", + "Schwarz-P\t| cos⁡(x)+cos⁡(y)+cos⁡(z)\n", + "Double Schwarz-P |\tcos⁡(x) cos⁡(y)+ cos⁡(y) cos⁡(z)+ cos⁡(x) cos⁡(z)+ 0.35 [cos⁡(2x)+cos⁡(2y)+cos⁡(2z)]\t\n", + "Diamond |\tsin⁡(x) sin⁡(y) sin⁡(z)+sin⁡(x) cos⁡(y) cos⁡(z) + cos⁡(x) sin⁡(y) cos⁡(z)+ cos⁡(x) cos⁡(y) sin⁡(z)\t\n", + "Double Diamond | sin⁡(2x) sin⁡(2y)+ sin⁡(2y) sin⁡(2z) + sin⁡(2z) sin⁡(2x)+ cos⁡(2x) cos⁡(2y) cos⁡(2z)\t\n", + "Gyroid|\tcos⁡(x) sin⁡(y)+cos⁡(y) sin⁡(x)+cos⁡(z) sin⁡(x)\t\n", + "Double Gyroid |\t2.75 [ sin(2x) sin⁡(z) cos⁡(y)+sin⁡(2y) sin⁡(x) cos⁡(z) + sin⁡(2z) sin⁡(y) cos⁡(x) ] - [ cos⁡(2x)cos⁡(2y)+ cos⁡(2y) cos⁡(2z)+cos⁡(2z) cos⁡(2x) ]\t\n", + "Lidinoid |\tsin⁡(2x) cos⁡(y) sin⁡(z)+sin⁡(2y) cos⁡(z) sin⁡(x)+ sin⁡(2z) cos⁡(x) sin⁡(y)+ cos⁡(2x) cos⁡(2y)+ cos⁡(2y) cos⁡(2z)+cos⁡(2z) cos⁡(2x)\t\n", + "Neovius |\t3 [cos⁡(x)+cos⁡(y)+cos⁡(z) ]+4 [cos⁡(x) cos⁡(y) cos⁡(z) ]\t\n", + "Schoen IWP |\tcos⁡(x) cos⁡(y)+cos⁡(y) cos⁡(z)+cos⁡(z) cos⁡(x)\t\n", + "Tubular G AB |\t20 [cos⁡(x) sin⁡(y) + cos⁡(y) sin⁡(z)+cos⁡(z) sin⁡(x) ] -0.5 [cos⁡(2x) cos⁡(2y)+cos⁡(2y) cos⁡(2z)+cos⁡(2z) cos⁡(2x) ] -4 \t\n", + "Tubular G C\t| -10 [cos⁡(x) sin⁡(y)+cos⁡(y) sin⁡(z)+cos⁡(z) sin⁡(x) ] +2[cos⁡(2x) cos⁡(2y)+cos⁡(2y) cos⁡(2z)+cos⁡(2z) cos⁡(2x) ] +12 \t\n", + "BCC |\tcos⁡(x)+cos⁡(y)+cos⁡(z)-2 [ cos⁡(x/2)cos⁡(y/2) + cos⁡(y/2)cos⁡(z/2)+cos⁡(z/2)cos⁡(x/2) ]\t\n", + "\n", + "\n", + "## Gyroid\n", + "The gyroid function is defined as shown in a following cell. \n", + "The wrapper `@sdf3` will provide gyroid function with 3D points (`p`)).\n", + "Then these (x,y, z) points will multiply by `w` and calculate the iso-level of gyroid by vectorized numpy function. \n", + "\n" + ], + "metadata": { + "id": "av6a2Jwm69VM" + } + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "id": "pm_CwCcV0Wte", + "outputId": "f7626e5a-1a15-4f6b-bc67-ea44c344ace0", + "colab": { + "base_uri": "https://localhost:8080/" + } + }, + "outputs": [ + { + "output_type": "stream", + "name": "stdout", + "text": [ + "/content/sdf\n", + "The autoreload extension is already loaded. To reload it, use:\n", + " %reload_ext autoreload\n" + ] + } + ], + "source": [ + "%cd /content/sdf\n", + "%load_ext autoreload\n", + "%autoreload 2\n", + "# Add parent directory into system path\n", + "import sys, os\n", + "sys.path.insert(1, os.path.abspath(os.path.normpath('..')))\n", + "\n", + "import numpy as np\n", + "from sdf import *\n", + "\n", + "@sdf3\n", + "def gyroid(w = 3.14159, t=0):\n", + " def f(p):\n", + " q = w*p\n", + " x, y, z = (q[:, i] for i in range(3))\n", + " return np.cos(x)*np.sin(y) + np.cos(y)*np.sin(z) + np.cos(z)*np.sin(x) - t\n", + " return f" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "id": "u5ZVgYpP0Wtg" + }, + "source": [ + "## Generate with SKimage\n", + "SDF used `marching_cubes` from `skimage.measure` with a `ThreadPool`, so it's super fast to construct the 3D mesh.\n", + "Let's create a constructing function that intersect a gyroid and a unit box." + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "id": "F9BpP6A00Wtg" + }, + "outputs": [], + "source": [ + "f = box(1) & gyroid(w=12)" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "id": "XKPr5MOw0Wtg", + "outputId": "97259e25-657a-42b7-a5ce-0f35c911b19a", + "colab": { + "base_uri": "https://localhost:8080/" + } + }, + "outputs": [ + { + "output_type": "stream", + "name": "stdout", + "text": [ + "min -0.543491, -0.543491, -0.543491\n", + "max 0.543491, 0.543491, 0.543491\n", + "step 0.01, 0.01, 0.01\n", + "1404928 samples in 64 batches with 2 workers\n", + "\n", + "6 skipped, 0 empty, 58 nonempty\n", + "239438 triangles in 1.04591 seconds\n" + ] + } + ], + "source": [ + "# Generate with skimage.measure.marching_cubes\n", + "points = f.generate(step=0.01, verbose=True)\n", + "write_binary_stl('out_1.stl', points)" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "id": "27qwHTUx0Wtg" + }, + "source": [ + "## Generate with PyScaffolder\n", + "\n", + "However, this method occasionally results in incomplete mesh. \n", + "Then let's try `Pyscaffolder.marching_cubes` which implements `dual marching cubes` from [@dominikwodniok/dualmc](https://github.com/dominikwodniok/dualmc)." + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "id": "jGZ_RNvG0Wtg", + "outputId": "d180c95a-edfb-41e2-9a44-3f9c671b1a46", + "colab": { + "base_uri": "https://localhost:8080/" + } + }, + "outputs": [ + { + "output_type": "stream", + "name": "stdout", + "text": [ + "min -0.543491, -0.543491, -0.543491\n", + "max 0.543491, 0.543491, 0.543491\n", + "step 0.01, 0.01, 0.01\n", + "\n", + "82748 triangles in 1.07692 seconds\n" + ] + } + ], + "source": [ + "# Generate with PyScaffolder.marching_cubes\n", + "import PyScaffolder\n", + "def marching_cubes(f, step=0.01, bounds=None, verbose=True, clean=True):\n", + " from sdf.mesh import _estimate_bounds, _cartesian_product\n", + " import time\n", + "\n", + " if not bounds:\n", + " bounds = _estimate_bounds(f)\n", + " (x0, y0, z0), (x1, y1, z1) = bounds\n", + " \n", + " try:\n", + " dx, dy, dz = step\n", + " except TypeError:\n", + " dx = dy = dz = step\n", + " \n", + " if verbose:\n", + " print('min %g, %g, %g' % (x0, y0, z0))\n", + " print('max %g, %g, %g' % (x1, y1, z1))\n", + " print('step %g, %g, %g' % (dx, dy, dz))\n", + "\n", + " X = np.arange(x0, x1, dx)\n", + " Y = np.arange(y0, y1, dy)\n", + " Z = np.arange(z0, z1, dz)\n", + "\n", + " P = _cartesian_product(X, Y, Z)\n", + " try:\n", + " # Since the PyScaffolder marching_cubes aceept FREP: F(x,y,z) > 0\n", + " # Then the negative of implicit function is used\n", + " Fxyz = (-f(P))\n", + " # Reshape to Fortran array (column-based) due to implementation of dualmc starting from z axis to x\n", + " Fxyz = Fxyz.reshape((len(X), len(Y), len(Z))).reshape(-1, order='F')\n", + " start = time.time()\n", + " (v, f) = PyScaffolder.marching_cubes(Fxyz, grid_size=[len(X), len(Y), len(Z)], v_min=bounds[0], delta=step, clean=clean)\n", + " if verbose:\n", + " seconds = time.time() - start\n", + " print('\\n%d triangles in %g seconds' % (len(f) // 3, seconds))\n", + " # merge vertices and faces into points\n", + " return v[f].reshape((-1, 3))\n", + " except Exception as e:\n", + " print(e)\n", + " return np.array([])\n", + "\n", + "points = marching_cubes(f, step=0.01, verbose=True, clean=True)\n", + "write_binary_stl('out_2.stl', points)" + ] + }, + { + "cell_type": "markdown", + "source": [ + "## Generate the other TPMS\n", + "\n", + "The following codes will generate SchwarzP and BCC structure. The output files can be found at `/content/sdf/` " + ], + "metadata": { + "id": "nS1Cct6M9Mzz" + } + }, + { + "cell_type": "code", + "source": [ + "@sdf3\n", + "def schwarz_p(w = 3.14159, t=0):\n", + " def f(p):\n", + " q = w*p\n", + " x, y, z = (q[:, i] for i in range(3))\n", + " return np.cos(x) + np.cos(y) + np.cos(z)\n", + " return f\n", + "\n", + "@sdf3\n", + "def bcc(w = 3.14159, t=0):\n", + " def f(p):\n", + " q = w*p\n", + " x, y, z = (q[:, i] for i in range(3))\n", + " return np.cos(x) + np.cos(y) + np.cos(z) -2*(np.cos(x/2)*np.cos(y/2) + np.cos(y/2)*np.cos(z/2) + np.cos(z/2)*np.cos(x/2))\n", + " return f" + ], + "metadata": { + "id": "9LFfSAZR9Uor" + }, + "execution_count": null, + "outputs": [] + }, + { + "cell_type": "code", + "source": [ + "f2 = box(1) & schwarz_p(w=12)\n", + "points = marching_cubes(f2, step=0.01, verbose=True, clean=True)\n", + "write_binary_stl('schwarz_p.stl', points)" + ], + "metadata": { + "colab": { + "base_uri": "https://localhost:8080/" + }, + "id": "TzAD5XK59ZRC", + "outputId": "8919bf3e-7b86-4f24-9592-bb1b05082029" + }, + "execution_count": null, + "outputs": [ + { + "output_type": "stream", + "name": "stdout", + "text": [ + "min -0.543491, -0.543491, -0.543491\n", + "max 0.543491, 0.543491, 0.543491\n", + "step 0.01, 0.01, 0.01\n", + "\n", + "59388 triangles in 0.45409 seconds\n" + ] + } + ] + }, + { + "cell_type": "code", + "source": [ + "f3 = box(1) & bcc(w=12)\n", + "points = marching_cubes(f3, step=0.01, verbose=True, clean=True)\n", + "write_binary_stl('bcc.stl', points)" + ], + "metadata": { + "colab": { + "base_uri": "https://localhost:8080/" + }, + "id": "IZc583ld9xRw", + "outputId": "6fd246df-d342-492f-dfcd-41adb8154adb" + }, + "execution_count": null, + "outputs": [ + { + "output_type": "stream", + "name": "stdout", + "text": [ + "min -0.543491, -0.543491, -0.543491\n", + "max 0.543491, 0.543491, 0.543491\n", + "step 0.01, 0.01, 0.01\n", + "\n", + "49112 triangles in 0.377038 seconds\n" + ] + } + ] + } + ], + "metadata": { + "interpreter": { + "hash": "338d088b7365852483cbb7f745c4a9fbf18ad887a6ae80fcf58992043df108c7" + }, + "kernelspec": { + "display_name": "Python 3.9.7 64-bit ('sdf': conda)", + "name": "python3" + }, + "language_info": { + "codemirror_mode": { + "name": "ipython", + "version": 3 + }, + "file_extension": ".py", + "mimetype": "text/x-python", + "name": "python", + "nbconvert_exporter": "python", + "pygments_lexer": "ipython3", + "version": "3.9.10" + }, + "orig_nbformat": 4, + "colab": { + "provenance": [] + } + }, + "nbformat": 4, + "nbformat_minor": 0 +} \ No newline at end of file diff --git a/jupyter/test_1.ipynb b/jupyter/test_1.ipynb new file mode 100644 index 0000000..484a9a6 --- /dev/null +++ b/jupyter/test_1.ipynb @@ -0,0 +1,184 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "source": [ + "# TPMS with SDF and PyScaffolder\r\n", + "Author: [Jirawat Iamsamang](https://github.com/nodtem66) \r\n", + "\r\n", + "## Abstract\r\n", + "SDF provides a class for discretizing and visualizing any implicit surfaces. The basic topologies (e.g. sphere, box) are already defined.\r\n", + "This notebook shows how to utilize this library to generate gyroid surface.\r\n", + "\r\n", + "## Installation\r\n", + "* Currently, SDF is not in PyPI. So the [github of SDF](https://github.com/fogleman/sdf) needs to clone into local computer. See [Installation](https://github.com/fogleman/sdf#installation)\r\n", + "* By contrast, PyScaffolder was installed by `pip install PyScaffolder`\r\n", + "\r\n", + "## Gyroid\r\n", + "The gyroid function is defined as shown in a following cell. \r\n", + "The wrapper `@sdf3` will provide gyroid function with 3D points (`p`)).\r\n", + "Then these (x,y, z) points will multiply by `w` and calculate the iso-level of gyroid by vectorized numpy function. " + ], + "metadata": {} + }, + { + "cell_type": "code", + "execution_count": 51, + "source": [ + "%load_ext autoreload\r\n", + "%autoreload 2\r\n", + "\r\n", + "import numpy as np\r\n", + "import PyScaffolder\r\n", + "from sdf import *\r\n", + "\r\n", + "@sdf3\r\n", + "def gyroid(w = 3.14159, t=0):\r\n", + " def f(p):\r\n", + " q = w*p\r\n", + " x, y, z = (q[:, i] for i in range(3))\r\n", + " return np.cos(x)*np.sin(y) + np.cos(y)*np.sin(z) + np.cos(z)*np.sin(x) - t\r\n", + " return f" + ], + "outputs": [ + { + "output_type": "stream", + "name": "stdout", + "text": [ + "The autoreload extension is already loaded. To reload it, use:\n", + " %reload_ext autoreload\n" + ] + } + ], + "metadata": {} + }, + { + "cell_type": "markdown", + "source": [ + "## Generate with SKimage\r\n", + "SDF used `marching_cubes` from `skimage.measure` with a `ThreadPool`, so it's super fast to construct the 3D mesh.\r\n", + "Let's create a constructing function that intersect a gyroid and a unit box." + ], + "metadata": {} + }, + { + "cell_type": "code", + "execution_count": 52, + "source": [ + "f = box(1) & gyroid(w=12)" + ], + "outputs": [], + "metadata": {} + }, + { + "cell_type": "code", + "execution_count": 53, + "source": [ + "# Generate with skimage.measure.marching_cubes\r\n", + "points = f.generate(step=0.01, verbose=True)\r\n", + "write_binary_stl('out_1.stl', points)" + ], + "outputs": [ + { + "output_type": "stream", + "name": "stdout", + "text": [ + "min -0.565721, -0.565721, -0.565721\n", + "max 0.565722, 0.565722, 0.565722\n", + "step 0.01, 0.01, 0.01\n", + "1601613 samples in 64 batches with 16 workers\n", + "\n", + "7 skipped, 0 empty, 57 nonempty\n", + "233958 triangles in 0.659682 seconds\n" + ] + } + ], + "metadata": {} + }, + { + "cell_type": "markdown", + "source": [ + "## Generate with PyScaffolder\r\n", + "\r\n", + "However, this method occasionally results in incomplete mesh. \r\n", + "Then let's try `Pyscaffolder.marching_cubes` which implements `dual marching cubes` from [@dominikwodniok/dualmc](https://github.com/dominikwodniok/dualmc)." + ], + "metadata": {} + }, + { + "cell_type": "code", + "execution_count": null, + "source": [ + "# Generate with PyScaffolder.marching_cubes\r\n", + "def marching_cubes(f, step=0.01, bounds=None, verbose=True, clean=True):\r\n", + " from sdf.mesh import _estimate_bounds, _cartesian_product\r\n", + " import time\r\n", + "\r\n", + " if not bounds:\r\n", + " bounds = _estimate_bounds(f)\r\n", + " (x0, y0, z0), (x1, y1, z1) = bounds\r\n", + " \r\n", + " try:\r\n", + " dx, dy, dz = step\r\n", + " except TypeError:\r\n", + " dx = dy = dz = step\r\n", + " \r\n", + " if verbose:\r\n", + " print('min %g, %g, %g' % (x0, y0, z0))\r\n", + " print('max %g, %g, %g' % (x1, y1, z1))\r\n", + " print('step %g, %g, %g' % (dx, dy, dz))\r\n", + "\r\n", + " X = np.arange(x0, x1, dx)\r\n", + " Y = np.arange(y0, y1, dy)\r\n", + " Z = np.arange(z0, z1, dz)\r\n", + "\r\n", + " P = _cartesian_product(X, Y, Z)\r\n", + " try:\r\n", + " # Since the PyScaffolder marching_cubes aceept FREP: F(x,y,z) > 0\r\n", + " # Then the negative of implicit function is used\r\n", + " Fxyz = (-f(P))\r\n", + " # Reshape to Fortran array (column-based) due to implementation of dualmc starting from z axis to x\r\n", + " Fxyz = Fxyz.reshape((len(X), len(Y), len(Z))).reshape(-1, order='F')\r\n", + " start = time.time()\r\n", + " (v, f) = PyScaffolder.marching_cubes(Fxyz, grid_size=[len(X), len(Y), len(Z)], v_min=bounds[0], delta=step, clean=clean)\r\n", + " if verbose:\r\n", + " seconds = time.time() - start\r\n", + " print('\\n%d triangles in %g seconds' % (len(points) // 3, seconds))\r\n", + " # merge vertices and faces into points\r\n", + " return v[f].reshape((-1, 3))\r\n", + " except Exception as e:\r\n", + " print(e)\r\n", + " return np.array([])\r\n", + "\r\n", + "points = marching_cubes(f, step=0.01, verbose=True, clean=True)\r\n", + "write_binary_stl('out_2.stl', points)" + ], + "outputs": [], + "metadata": {} + } + ], + "metadata": { + "orig_nbformat": 4, + "language_info": { + "name": "python", + "version": "3.9.6", + "mimetype": "text/x-python", + "codemirror_mode": { + "name": "ipython", + "version": 3 + }, + "pygments_lexer": "ipython3", + "nbconvert_exporter": "python", + "file_extension": ".py" + }, + "kernelspec": { + "name": "python3", + "display_name": "Python 3.9.6 64-bit ('sdf': conda)" + }, + "interpreter": { + "hash": "338d088b7365852483cbb7f745c4a9fbf18ad887a6ae80fcf58992043df108c7" + } + }, + "nbformat": 4, + "nbformat_minor": 2 +} \ No newline at end of file diff --git a/other_tools/index.html b/other_tools/index.html new file mode 100644 index 0000000..822a74a --- /dev/null +++ b/other_tools/index.html @@ -0,0 +1,643 @@ + + + + + + + + + + + + + + + + + + + + + Other tools - Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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MSLattice, FLatt Pack, and Scaffolder were used to generate the 2 units of Gyroid (20mm×20mm×20mm).

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The porosity was set to 70% (30% volume fraction).

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MSLattice and FLatt Pack defined mesh density or discretization per unit cell, whereas Scaffolder defined grid size for entire structure.

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Hence, the mesh density points and discretization were set to 100, while Scaffolder’s grid size was set to 200,

+

the following relation between the number of unit cells (N), mesh length (L), unit cell size (l), and angular frequency (ω) is: +$$$ +w=2\piNL=2\pil +$$$

+

Parameters used to generate Gyroid meshes +Program +Parameter +MSLattice +Uniform TPMS Lattices with solid network. +Architecture = Gyroid, Relative density = 30, Unit cell size = 10 +Sample Length = 20, Sample Width = 20, Sample Height = 20 +Mesh Density Points = 100 +FLatt Pack +Geometry = Cuboid, Dimensions (x,y,z) = (20,20,20), Cells (x,y,z) = (2,2,2), +Phase=Network (Gyroid), Discretisation = 100, +Volume fraction = Uniform (0.3), No skin +Scaffolder +ω=π/5, t=0.61, grid_size = 200 +(Scaffolder cube20mm.stl out.stl gyroid,0.6283,0.61,200 +--fix_self_intersect --intersect=false)

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+ + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/python/index.html b/python/index.html new file mode 100644 index 0000000..3db1d85 --- /dev/null +++ b/python/index.html @@ -0,0 +1,950 @@ + + + + + + + + + + + + + + + + + + + + + + + + + Python API - Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ + + + + + + +

Python API

+

PyScaffolder is a wrapper for Scaffolder, which is written in C++. +It used PyBind11 to interface the C++ core function. +The main core functions are generate_scaffold and slice_test which resemble the standalone program: Scaffolder and Scaffolder.Slice.

+

generate_scaffold

+
+
def generate_scaffold(vertices, faces, params=Parameter(), callback=None)
+
+
Generate 3D mesh from input vertices, faces, and parameters

Parameters

+
    +
  • vertices: 2D array or numpy.array representing vertices in list of [x,y,z]
    • +
  • faces: 2D array or numpy.array representing faces in list of [v1, v2, v3, v4]
    • +
  • params: Optional Parameter see the detail in Command line
    • +
  • callback: Optional function with one integer parameter indicating the progression
    • +
+

Return

+MeshInfo

Example

+
from PyScaffolder import generate_scaffold, Parameter
+
+# vertices and faces of a 20mm cube
+v = [
+    [0.0, 0.0, 0.0],
+    [20.0, 0.0, 0.0],
+    [0.0, -20.0, 0.0],
+    [20.0, -20.0, 0.0],
+    [0.0, 0.0, 20.0],
+    [20.0, 0.0, 20.0],
+    [0.0, -20.0, 20.0],
+    [20.0, -20.0, 20.0]
+]
+
+f = [
+    [1, 2, 0],
+    [2, 1, 3],
+    [7, 2, 3],
+    [2, 7, 6],
+    [1, 7, 3],
+    [7, 1, 5],
+    [7, 4, 6],
+    [4, 7, 5],
+    [4, 2, 6],
+    [2, 4, 0],
+    [4, 1, 0],
+    [1, 4, 5]
+]
+
+# the function required two parameters
+mesh_info = generate_scaffold(v, f)
+
+# use custom parameters
+parameter = Parameter()
+parameter.coff = 1.0
+
+mesh_info = generate_scaffold(v, f, parameter)
+
+# use callback to show % progression
+def progression(n):
+  print(n)
+
+mesh_info = generate_scaffold(v, f, callback=progression)
+
+
+

slice_test

+
+
def slice_test(vertices, faces, k_slice=100, k_polygon=4, direction=0, callback=None)
+
+
+

Slice input mesh into pore sizes

+

Parameters

+
    +
  • vertices: 2D array or numpy.array representing vertices in list of [x,y,z]
    • +
  • faces: 2D array or numpy.array representing faces in list of [v1, v2, v3, v4]
    • +
  • k_slice: Optional integer \(k_{slice}\) the number of sliced layers
    • +
  • k_polygon: Optional integer \(k_{polygon}\) the number of nearest-neighbor polygon to measure Feret diameter
    • +
  • direction Optional integer representing slicing axis (0=X, 1=Y, 2=Z, 3=All)
    • +
  • callback: Optional function with one integer parameter indicating the progression
    • +
+

Return

+PoreSize

Example

+
import numpy as np
+import trimesh
+import PyScaffolder
+
+# load input.stl into mesh
+mesh = trimesh.load('input.stl')
+
+# slice all direction with default parameter
+pore_size = PyScaffolder.slice_test(mesh.vertices, mesh.faces, direction=3)
+print(len(pore_size.minFeret), len(pore_size.maxFeret))
+
+
+
+

marching_cubes

+
+
def marching_cubes(f, grid_size=(100,100,100), v_min=(0,0,0), delta=0.01, clean=False, callback=None)
+
+
+

Slice input mesh into pore sizes

+

Parameters

+
    +
  • f: numpy.array representing a discrete isosurface where F(x,y,z) = 0 is boundary
    • +
  • grid_size: Optional array, list, tuple, or int representing the number of voxels
    • +
  • delta: Optional array, list, tuple or double representing the dimension of a voxel
    • +
  • v_min: Optional array, list, tuple the coordinate of the corner of grid
    • +
  • clean Optional boolean that enable mesh cleaning after marching cubes
    • +
  • callback: Optional function with one integer parameter indicating the progression
    • +
+

Return

+(v, f) representing vertices and faces in np.array

Example

+
import PyScaffolder
+Fxyz = [
+    1,1,1,1,
+    1,-1,-1,1,
+    1,-1,-1,1,
+    1,1,1,1
+]*4
+(v, f) = PyScaffolder.marching_cubes(
+    Fxyz,
+    grid_size=4,
+    delta=0.25,
+    v_min=(-.5, -.5, -.5),
+    callback = lambda x: print(x)
+)
+
+
+
+

Parameter

+
+
class Parameter:
+    is_build_inverse = False
+    is_intersect = True
+    verbose = False
+    shell = 0
+    grid_offset = 5
+    smooth_step = 5
+    k_slice = 100
+    k_polygon = 4
+    fix_self_intersect = 0
+    grid_size = 100
+    isolevel = 0.0
+    qsim_percent = 0
+    coff = 3.141592653589793238462643383279502884
+    minimum_diameter = 0.25
+    surface_name = "bcc"
+
+
Parameters implement from standalone program (see Command line)

Example

+
from PyScaffolder import Parameter
+params = Parameter()
+params.coff = 1.0
+
+
+

PoreSize

+
+
class PoreSize:
+    minFeret = np.array([])
+    maxFeret = np.array([])
+
+
Collection of Minimum and Maximum Feret diameters, normally returned from slice_test
+
+

MeshInfo

+
+
class MeshInfo:
+    v = np.array([[]])
+    f = np.array([[]])
+    porosity = 0.0
+    surface_area = 0.0
+    surface_area_ratio = 0.0
+
+
Collection of triangular mesh resulted from generate_scaffold
+
+ + + + + + + + + + + + + +
+
+ + + +
+ + + +
+ + + +
+
+
+
+ + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/search/search_index.json b/search/search_index.json new file mode 100644 index 0000000..99dd44c --- /dev/null +++ b/search/search_index.json @@ -0,0 +1 @@ +{"config":{"lang":["en"],"separator":"[\\s\\-]+","pipeline":["stopWordFilter"]},"docs":[{"location":"","title":"Scaffolder","text":"

The triply periodic minimal surface (TPMS) topology is beautiful. They constructed from a mathematical implicit function \\(f(x,y,z)=0\\) and resulted in 3D mesh by Marching cubes. However, the creating process of a TPMS mesh from a complex shape like human bone is quite complicated. \"Scaffolder\" offers the easy solution via commandline, Python API, and Blender plugins.

"},{"location":"#applications","title":"Applications","text":"
  • Volumetric CAD
  • Surface visualization
  • Multi-morphology porous scaffold design
  • Porous bone implant design
  • Finite element analysis (FEA)
"},{"location":"#how-it-works","title":"How it works","text":"
  • Read STL file and finding the boundary box
  • Generate the grid and calculate the winding number with STL mesh
  • Generate the 3D isosurface field
  • Perform Dual marching cube to construct the 3D mesh
  • Clean up the duplicated vertices or faces, and abandon the group of connected faces having the diameter below the setting
  • Export to the target 3D format
"},{"location":"#citation","title":"Citation","text":"

Computational method and program for generating a porous scaffold based on implicit surfaces 

@article{IAMSAMANG2021106088,\ntitle = {Computational method and program for generating a porous scaffold based on implicit surfaces},\njournal = {Computer Methods and Programs in Biomedicine},\nvolume = {205},\npages = {106088},\nyear = {2021},\nissn = {0169-2607},\ndoi = {https://doi.org/10.1016/j.cmpb.2021.106088},\nurl = {https://www.sciencedirect.com/science/article/pii/S0169260721001632},\nauthor = {Jirawat Iamsamang and Phornphop Naiyanetr},\nkeywords = {Triply periodic minimal surface (TPMS), Implicit surface, Porous scaffold, Pore size, Porosity}\n}\n

"},{"location":"blender/","title":"Blender plugin","text":"

After the PyScaffolder addon for Blender is installed and enabled, press N or View > Sidebar to show a sidebar tab in right-hand side. Then Scaffolder will be found in one tab of a that sidebar, as shown in the following figure.

See Command line for the description of the parameters used in mesh generation.

"},{"location":"blender/#video","title":"Video","text":""},{"location":"cmd/","title":"Command line","text":"
Scaffolder - generate 3D scaffold from STL file\nUsage:\n  Scaffolder [OPTION...] INPUT OUTPUT PARAMETERS\n\n  -h, --help                    Print help\n  -i, --input INPUT             Input file (STL/PLY/OFF/OBJ/VMI)\n  -o, --output OUTPUT           Output filename with extension\n                                stl,ply,obj,off,ctm\n      --params PARAMETERS       Combined parameters list:\n                                surface[,coff,isolevel,grid_size,k_slice,k_polygon]\n  -q, --quiet                   Disable verbose output [default: false]\n  -c, --coff DOUBLE             Angular frequency (pore size adjustment)\n                                default:PI\n  -t, --isolevel DOUBLE         isolevel (porosity adjustment) [default: 0]\n  -n, --surface NAME            implicit surface: rectlinear, schwarzp,\n                                schwarzd, gyroid, double-p, double-d,\n                                double-gyroiod, lidinoid, schoen_iwp, neovius, bcc,\n                                tubular_g_ab, tubular_g_c (default: bcc)\n  -g, --grid_size INT (0..60000)\n                                Grid size [default: 100]\n  -s, --shell INT (0..60000)    Outer thickness (layers) [default:0]\n      --grid_offset INT (0..60000)\n                                [default:3]\n  -m, --microstructure          Analysis microstructure with Slice contour\n                                technique ( [default: false]\n      --export_microstructure   Analysis microstructure and export the 2D\n                                contours (for debugging) [default: false]\n      --export_jpeg [X|Y|Z],INT\n                                Export 2D JPEG (Default: Z,100)\n      --k_slice INT (0..60000)  K_slice: the number of slicing layers in each\n                                direction (used in microstructure analysis)\n                                (default: 100)\n      --k_polygon INT (>0)      K_polygon: the number of closest outer\n                                contour (used in microstructure analysis) (default:\n                                4)\n  -z, --size_optimize DOUBLE (0..1)\n                                Experimental Quadric simplification (default:\n                                0)\n      --smooth_step INT (0..60000)\n                                Smooth with laplacian (default: 0)\n      --dirty                   Disable autoclean\n      --minimum_diameter DOUBLE (0..1)\n                                used for removing small orphaned (between\n                                0-1) (default: 0.25)\n      --format FORMAT (default, csv)\n                                Format of logging output (default: default)\n      --output_inverse          additional output inverse scaffold\n      --fix_self_intersect INT  Experimental fix self-intersect faces\n                                (default: 0)\n      --mean_curvature INT      Size of mean curvature histogram (default: 0)\n      --no_intersect            Generate 3D mesh without intersect with\n                                original mesh (false)\n
"},{"location":"cmd/#examples","title":"Examples","text":"

  • Generated BCC scaffold with \\(w=\\pi\\), \\(t=0\\), and \\(grid\\_size=100\\) 

      Scaffolder input.stl output.stl bcc,3.14159,0,100\n

  • Generated custom implicit function (declaired in custom.lua) with \\(w=\\pi\\), \\(t=0\\), \\(grid\\_size=100\\), \\(k_{slice}=100\\), \\(k_{polygon}=4\\) and evaluated scaffold properties 

      Scaffolder input.stl output.stl custom.lua,3.14159,0,100,100,4 -m\n

  • Generated and evaluated BCC scaffold (\\(w=3.14159\\), \\(t=0\\)) and reported in CSV 

    Scaffolder input.stl output.stl bcc,3.14159,0 -m -q --format csv\n

"},{"location":"cmd/#custom-implicit-function","title":"Custom implicit function","text":"

If the built-in functions (rectlinear, schwarzp, schwarzd, gyroid, double-p, double-d, double-gyroiod, lidinoid, schoen_iwp, neovius, bcc, tubular_g_ab, tubular_g_c) was not satisfied, the custom implicit function can be used by creating a lua file and define the \"surface\" function that return the FRep

-- custom.lua \n-- define gyroid with\nfunction surface (x, y, z)\n    return -(sin(x) * cos(y) + sin(y) * cos(z) + sin(z) * cos(x) - params.isolevel)\nend\n

The special symbols can be used in lua file: 

  params = { coff, isolevel, k_splice, k_polygon }\n  bbox = { min, max, length, grid_density }\n  winding(x,y,z) -- function returning the winding number of position x,y,z\n  signed_distance(x,y,z) -- function returning signed distance of position x,y,z\n
and also all functions in math module

"},{"location":"installation/","title":"Installation","text":"

Scaffolder supports the command-line usage by standalone program, python scripting via PyPI, and blender by python-wrapped plugin.

"},{"location":"installation/#standalone-program","title":"Standalone program","text":"

The binary programs for various platforms are automatically built and deposited on the public repository: Github and Anaconda.

"},{"location":"installation/#github","title":"Github","text":"
  1. Download bin64.zip from Github Releases page
  2. Extract bin64.zip which contains the following files: 
    \u251c\u2500\u2500\u2500macos\n\u2502       PyScaffolder.cpython-39-darwin.so\n\u2502       Scaffolder\n\u2502       Scaffolder.SliceTest\n\u2502\n\u251c\u2500\u2500\u2500ubuntu\n\u2502       PyScaffolder.cpython-36m-x86_64-linux-gnu.so\n\u2502       Scaffolder\n\u2502       Scaffolder.SliceTest\n\u2502\n\u2514\u2500\u2500\u2500windows\n    \u2514\u2500\u2500\u2500Release\n            PyScaffolder.cp37-win_amd64.pyd\n            PyScaffolder.exp\n            PyScaffolder.lib\n            Scaffolder.exe\n            Scaffolder.SliceTest.exe\n
  3. Open command line at the directory according to your platform, such as windows/Release for window.
  4. Test the program with --help 
    Scaffolder --help\nScaffolder.SliceTest --help\n

Note

PyScaffolder.cpython-<python_version>-<platform> is a compiled python bytecode that can import to a python script as a module (see Python supports).

"},{"location":"installation/#anaconda","title":"Anaconda","text":"
  1. Install Anaconda or miniconda
  2. Conda can manage the environments and revisions, then:
    • If you want to install Scaffolder into current environment, use: 
      conda install -c nodtem66 scaffolder\n
    • If you want to install Scaffolder into a new environment due to the conflicted from some dependencies, use: 
      conda install -n new_env -c nodtem66 scaffolder\nconda activate new_env\n
  3. Test the program with --help 
    Scaffolder --help\nScaffolder.SliceTest --help\n
"},{"location":"installation/#python-supports","title":"Python supports","text":"

The current version of Scaffolder supports python 3.6, 3.7, 3.8, and 3.9 with only x86_64 platform on:

  • Window 10 (didn't test with the older version)
  • Linux
  • OSX 10

Note

see the list of available version at PyPI

Then install via pip 

pip install PyScaffolder\n

The following script is an example usage of PyScaffolder. 

import PyScaffolder\n\n# Load vertices and faces of a 20mm cube\nv = [\n    [0.0, 0.0, 0.0],\n    [20.0, 0.0, 0.0],\n    [0.0, -20.0, 0.0],\n    [20.0, -20.0, 0.0],\n    [0.0, 0.0, 20.0],\n    [20.0, 0.0, 20.0],\n    [0.0, -20.0, 20.0],\n    [20.0, -20.0, 20.0]\n]\n\nf = [\n    [1, 2, 0],\n    [2, 1, 3],\n    [7, 2, 3],\n    [2, 7, 6],\n    [1, 7, 3],\n    [7, 1, 5],\n    [7, 4, 6],\n    [4, 7, 5],\n    [4, 2, 6],\n    [2, 4, 0],\n    [4, 1, 0],\n    [1, 4, 5]\n]\nprint(\"Vertices: \", len(v))\nprint(\"Faces: \", len(f))\n\n# Test Slice test with all direction\na = PyScaffolder.slice_test(v, f, direction=3)\nprint(len(a.minFeret))\n\n# Set default parameter\nparams = PyScaffolder.Parameter()\nparams.coff = 1.0\n\n# Test the mesh generation from v,f\na = PyScaffolder.generate_scaffold(v, f, params)\nprint(a.porosity)\nprint(a.surface_area_ratio)\nprint(len(a.v), len(a.f))\n

See Python API for details.

"},{"location":"installation/#blender-addon","title":"Blender addon","text":"
  1. Download Scaffolder-blender.zip from Github, which contains following files (see also /blender): 
    \u2514\u2500\u2500\u2500Scaffolder\n    SCAFFOLDER_OP_generate_mesh.py\n    SCAFFOLDER_OP_slice_test.py\n    SCAFFOLDER_PT_generate_mesh.py\n    SCAFFOLDER_PT_slice_test.py\n    SCAFFOLDER_settings.py\n    utils.py\n    __init__.py\n
  2. Open Blender > Edit > Preferences > Add-ons > Install, select Scaffolder-blender.zip, and check the box to enable it.
  3. Press N or View > Sidebar. Then Scaffolder will be found in one tab of a sidebar.

See Blender plugin for video and more information.

"},{"location":"other_tools/","title":"Other tools","text":"

MSLattice, FLatt Pack, and Scaffolder were used to generate the 2 units of Gyroid (20mm\u00d720mm\u00d720mm).

The porosity was set to 70% (30% volume fraction).

MSLattice and FLatt Pack defined mesh density or discretization per unit cell, whereas Scaffolder defined grid size for entire structure.

Hence, the mesh density points and discretization were set to 100, while Scaffolder\u2019s grid size was set to 200,

the following relation between the number of unit cells (N), mesh length (L), unit cell size (l), and angular frequency (\u03c9) is: $$$ w=2\\piNL=2\\pil $$$

Parameters used to generate Gyroid meshes Program Parameter MSLattice Uniform TPMS Lattices with solid network. Architecture = Gyroid, Relative density = 30, Unit cell size = 10 Sample Length = 20, Sample Width = 20, Sample Height = 20 Mesh Density Points = 100 FLatt Pack Geometry = Cuboid, Dimensions (x,y,z) = (20,20,20), Cells (x,y,z) = (2,2,2), Phase=Network (Gyroid), Discretisation = 100, Volume fraction = Uniform (0.3), No skin Scaffolder \u03c9=\u03c0/5, t=0.61, grid_size = 200 (Scaffolder cube20mm.stl out.stl gyroid,0.6283,0.61,200 --fix_self_intersect --intersect=false)

"},{"location":"python/","title":"Python API","text":"

PyScaffolder is a wrapper for Scaffolder, which is written in C++. It used PyBind11 to interface the C++ core function. The main core functions are generate_scaffold and slice_test which resemble the standalone program: Scaffolder and Scaffolder.Slice.

"},{"location":"python/#generate_scaffold","title":"generate_scaffold","text":"
def generate_scaffold(vertices, faces, params=Parameter(), callback=None)\n
Generate 3D mesh from input vertices, faces, and parameters"},{"location":"python/#parameters","title":"Parameters","text":"
  • vertices: 2D array or numpy.array representing vertices in list of [x,y,z]
  • faces: 2D array or numpy.array representing faces in list of [v1, v2, v3, v4]
  • params: Optional Parameter see the detail in Command line
  • callback: Optional function with one integer parameter indicating the progression
"},{"location":"python/#return","title":"Return","text":"MeshInfo"},{"location":"python/#example","title":"Example","text":"
from PyScaffolder import generate_scaffold, Parameter\n\n# vertices and faces of a 20mm cube\nv = [\n    [0.0, 0.0, 0.0],\n    [20.0, 0.0, 0.0],\n    [0.0, -20.0, 0.0],\n    [20.0, -20.0, 0.0],\n    [0.0, 0.0, 20.0],\n    [20.0, 0.0, 20.0],\n    [0.0, -20.0, 20.0],\n    [20.0, -20.0, 20.0]\n]\n\nf = [\n    [1, 2, 0],\n    [2, 1, 3],\n    [7, 2, 3],\n    [2, 7, 6],\n    [1, 7, 3],\n    [7, 1, 5],\n    [7, 4, 6],\n    [4, 7, 5],\n    [4, 2, 6],\n    [2, 4, 0],\n    [4, 1, 0],\n    [1, 4, 5]\n]\n\n# the function required two parameters\nmesh_info = generate_scaffold(v, f)\n\n# use custom parameters\nparameter = Parameter()\nparameter.coff = 1.0\n\nmesh_info = generate_scaffold(v, f, parameter)\n\n# use callback to show % progression\ndef progression(n):\n  print(n)\n\nmesh_info = generate_scaffold(v, f, callback=progression)\n
"},{"location":"python/#slice_test","title":"slice_test","text":"
def slice_test(vertices, faces, k_slice=100, k_polygon=4, direction=0, callback=None)\n

Slice input mesh into pore sizes

"},{"location":"python/#parameters_1","title":"Parameters","text":"
  • vertices: 2D array or numpy.array representing vertices in list of [x,y,z]
  • faces: 2D array or numpy.array representing faces in list of [v1, v2, v3, v4]
  • k_slice: Optional integer \\(k_{slice}\\) the number of sliced layers
  • k_polygon: Optional integer \\(k_{polygon}\\) the number of nearest-neighbor polygon to measure Feret diameter
  • direction Optional integer representing slicing axis (0=X, 1=Y, 2=Z, 3=All)
  • callback: Optional function with one integer parameter indicating the progression
"},{"location":"python/#return_1","title":"Return","text":"PoreSize"},{"location":"python/#example_1","title":"Example","text":"
import numpy as np\nimport trimesh\nimport PyScaffolder\n\n# load input.stl into mesh\nmesh = trimesh.load('input.stl')\n\n# slice all direction with default parameter\npore_size = PyScaffolder.slice_test(mesh.vertices, mesh.faces, direction=3)\nprint(len(pore_size.minFeret), len(pore_size.maxFeret))\n
"},{"location":"python/#marching_cubes","title":"marching_cubes","text":"
def marching_cubes(f, grid_size=(100,100,100), v_min=(0,0,0), delta=0.01, clean=False, callback=None)\n

Slice input mesh into pore sizes

"},{"location":"python/#parameters_2","title":"Parameters","text":"
  • f: numpy.array representing a discrete isosurface where F(x,y,z) = 0 is boundary
  • grid_size: Optional array, list, tuple, or int representing the number of voxels
  • delta: Optional array, list, tuple or double representing the dimension of a voxel
  • v_min: Optional array, list, tuple the coordinate of the corner of grid
  • clean Optional boolean that enable mesh cleaning after marching cubes
  • callback: Optional function with one integer parameter indicating the progression
"},{"location":"python/#return_2","title":"Return","text":"(v, f) representing vertices and faces in np.array"},{"location":"python/#example_2","title":"Example","text":"
import PyScaffolder\nFxyz = [\n    1,1,1,1,\n    1,-1,-1,1,\n    1,-1,-1,1,\n    1,1,1,1\n]*4\n(v, f) = PyScaffolder.marching_cubes(\n    Fxyz,\n    grid_size=4,\n    delta=0.25,\n    v_min=(-.5, -.5, -.5),\n    callback = lambda x: print(x)\n)\n
"},{"location":"python/#parameter","title":"Parameter","text":"
class Parameter:\n    is_build_inverse = False\n    is_intersect = True\n    verbose = False\n    shell = 0\n    grid_offset = 5\n    smooth_step = 5\n    k_slice = 100\n    k_polygon = 4\n    fix_self_intersect = 0\n    grid_size = 100\n    isolevel = 0.0\n    qsim_percent = 0\n    coff = 3.141592653589793238462643383279502884\n    minimum_diameter = 0.25\n    surface_name = \"bcc\"\n
Parameters implement from standalone program (see Command line)"},{"location":"python/#example_3","title":"Example","text":"
from PyScaffolder import Parameter\nparams = Parameter()\nparams.coff = 1.0\n
"},{"location":"python/#poresize","title":"PoreSize","text":"
class PoreSize:\n    minFeret = np.array([])\n    maxFeret = np.array([])\n
Collection of Minimum and Maximum Feret diameters, normally returned from slice_test"},{"location":"python/#meshinfo","title":"MeshInfo","text":"
class MeshInfo:\n    v = np.array([[]])\n    f = np.array([[]])\n    porosity = 0.0\n    surface_area = 0.0\n    surface_area_ratio = 0.0\n
Collection of triangular mesh resulted from generate_scaffold"},{"location":"tips/","title":"Tips","text":""},{"location":"tips/#what-is-the-value-of-w-used-for-pore-size-x","title":"What is the value of \\(w\\) used for pore size \\(x\\)?","text":"

The angular frequency (\\(w\\)) control the number of repetitive TPMS units:

\\[ w = 2\\pi / T = 2\\pi N / L \\]

where \\(T\\) = period or length of a unit cell, \\(N\\) = the number of unit cells, and \\(L\\) = the length of input 3D mesh.

For example, if we want \\(N=2\\) in cube20mm.stl (\\(L=20mm\\)), \\(w\\) will be \\(2\\pi*2/20 = \\pi/5\\) (the unit of \\(L\\) has the same dimension with the input mesh).

The image show the Gyroid (left) and Double-Gyroid (right) with \\(w=\\pi/5\\) and \\(t=0\\). The pore size \\(x \\approx T/2\\) for Gyroid and \\(T/4\\) for Double-Gyroid. Then,

\\[ w \\approx \\left\\{ \\begin{array}{l} \\pi/x, & \\text{for gyroid} \\\\ \\pi/2x, & \\text{for double-gyroid} \\end{array} \\right. \\]

If we want a gyroid with \\(x=5mm\\), we will set \\(w=\\pi/5\\).

"},{"location":"tips/#example","title":"Example:","text":"

./Scaffolder cube20mm.stl out.ply -c 3.14159 -g 100 -n tubulat_g_ab\n
Program will generate the scaffold from cube20mm.stl (\\(L=20mm\\)) with theoretical \\(N=10\\)

"},{"location":"tips/#how-to-reduce-the-size-of-3d-mesh","title":"How to reduce the size of 3D mesh?","text":"

Scaffolder uses the Quadratic decimation from MeshLab to reduce the result 3D mesh with an option --size_optimize (-z). For example, the following command is used to generate a gyroid with 50% decimation, thus resulting the 50% less faces: 

./Scaffolder input.stl out.stl gyroid,0.6283,0.61,200 -z 0.5\n

Note

You can manually reduce the size by using MeshLab: Filter > Remeshing, Simplification, and Reconstruction > Simplification: Quadric Edge Collapse Decimation

"},{"location":"tips/#how-to-intrepret-the-output-from-console","title":"How to intrepret the output from console?","text":"

Suppose that the following command was used: 

.\\Scaffolder.exe .\\cube20mm.stl out.stl gyroid,0.6283,0.61,100\n

Then this is an output generated by program with default options (--format default) 

[Scaffolder v1.5.1]\n-- Input file: .\\cube20mm.stl\n-- Output file: out.stl\n-- Surface (-n): gyroid\n-- Coff (-c): 0.6283\n-- Isolevel (-t): 0.61\n-- Grid size (-g): 100\n--   Grid offset: 3\n--   Shell: 0\n-- Autoclean: True\n--   Minimum diameter: 25%\n--   Smooth step: 5\n--   Fix self-intersect: False\n--   Quadric Simplification (-z): 0\n-- Analysis microstructure (-m): False\n--   Slice grid (k_slice): 100\n--   Nearest outer contours (k_polygon): 4\n--   Export microstructure: False\n--   Mean curvature: False\n-- Export JPEG: No\n--   Axis: X\n-- Build: Yes(Intersect)\n-- Bounding Box: [0, 0, 0] [20, 20, 20]\n-- Length: [20, 20, 20]\n-- Grid delta: 0.2\n[Generating grid] OK\n-- Grid size: 1191016 [106, 106, 106]\n[Calculating Winding number] OK\n-- Sign Distance: [ -1.03923, 9.99999]  Wind: [ -2.86488e-06, 1]\n[Generating isosurface Fxyz] OK\n[Marching Cube]\n[========================================] 100% 0.178s\n-- Info: 105896 vertices 211896 faces\n[libVCG Cleaning] OK\n[Laplacian smoothing] OK\n-- is_manifold: 1\n[Topology Measurement]\n-- Mesh is composed by 1 connected component(s)\n-- border edge: 0\n-- non-manifold edge: 0\n-- non-manifold vertex: 0\n-- self-intersect faces: 840\n-- Mesh is two-manifold\n-- Mesh has 0 holes\n-- Genus is 27\n[Scaffold properties]\n-- Volume: 2267.63\n-- Surface Area: 2855.25\n-- Porosity: 0.716547\n-- Surface Area ratio: 1.18969\n[Writing file] OK\n[Finished]\n

"},{"location":"tips/#parameters-summary-lines-1-25","title":"Parameters summary (Lines 1-25)","text":"Line Parameter (value) Detail Refer to a process at 2 Input file (cube20mm.stl) Path to input file Line 26,Line 28 3 Output file (out.stl) Path to output file Line 51 4 Surface (gyroid) TPMS types Line 30 5 Coff (0.6283) Angular frequency (\\(w\\)) Line 30 6 Isolevel (0.61) Isolevel (\\(t\\)) Line 30 7 Grid size (100) Grid Resolution Line 26 8 Grid offset (3) Padding size adding to grid Line 26 9 Shell (0) Depth of solid shell Line 30 10 Autoclean (True) Clean 3D Mesh Line 34 11 Minimum diameter (25%) Minimal diameter (% of diagonal length of bounding box) to classify the small components in cleaning process Line 34 12 Smooth step (5) Steps to Laplacian smoothing Line 35 13 Fix self-intersect (False) Whether the program should fix the self-intersect or not Line 34 14 Quadric Simplification (0) % triangles reduction NA 15 Analysis microstructure (False) Report the pore size NA 16 Slice grid (100) \\(k_{slice}\\) (the number of slice layers) NA 17 Nearest outer contours (4) \\(k_{polygon}\\) NA 18 Export microstructure (False) Export the SVG of sliced layers NA 19 Mean curvature (False) Calculate the mean curvature NA 20 Export JPEG (No) Export sliced layer NA 21 Axis (X) Axis to slice 3D Mesh NA 22 Build (True) Generate 3D Mesh Line 51 23 Bounding Box ([0, 0, 0] [20, 20, 20]) Two points of bounding box Line 26 24 Length ([20, 20, 20]) \\(\\text{Length}\\) of bonding box in [x, y, z] Line 26 25 Grid delta (0.2) \\(min(\\text{Length})/\\text{grid size}\\) Line 26"},{"location":"tips/#grid-generation-line-26","title":"Grid Generation (Line 26)","text":"

The voxels were generated based on \\(\\text{Length}/\\text{Grid delta} + 2(\\text{Grid offset})\\). In this case, the grid size of (X, Y, Z) is \\((20, 20, 20)/0.2 + 2(3) = (106, 106, 106)\\) and the total number of voxels is \\(106\\times106\\times106=1191016\\)

"},{"location":"tips/#winding-number-and-sdf-calculation-line-28","title":"Winding number and SDF calculation (Line 28)","text":"

The winding number and SDF with \\(106\\times106\\times106\\) voxels was calculated based on vertices and faces from input file.

"},{"location":"tips/#surface-generation-line-30","title":"Surface Generation (Line 30)","text":"

By combining \\(w\\) (0.6283), \\(t\\) (0.61), implicit function (gyroid), and input SDF, the output SDF was constructed.

"},{"location":"tips/#surface-visualization-line-31","title":"Surface visualization (Line 31)","text":"

The trigular mesh was generated from output SDF by dual marching cubes algorithm

"},{"location":"tips/#cleaning-line-34","title":"Cleaning (Line 34)","text":"

If autoclean option is enabled, the trigular mesh was cleaned by VGClib.

"},{"location":"tips/#smoothing-line-35","title":"Smoothing (Line 35)","text":"

The Laplacian smooth is used to fix the mis-shape faces from dual marching cube algorithm.

"},{"location":"tips/#topology-properties-line-37","title":"Topology properties (Line 37)","text":"

In order to fabricate with 3D printer, make sure that 3D mesh is watertight. Thus, the program asserts whether the 3D mesh is two-manifold or not. Moreover, the number non-manifold and border edges are reported, which should be zero to ensure the watertight property of the 3D mesh.

"},{"location":"tips/#scaffold-properties-line-46","title":"Scaffold properties (Line 46)","text":"

Finally, the scaffold property such as volume (\\(\\text{unit}^3\\)), surface area (\\(\\text{unit}^2\\)), porosity, and surface area ratio were reported.

\\[ Porosity = 1 - \\left|\\frac{\\text{Volume}_{output}}{\\text{Volume}_{input}}\\right| \\] \\[ \\text{Surface Area Ratio (SAR)} = \\left|\\frac{\\text{Surface area}_{output}}{\\text{Surface area}_{input}}\\right| \\]"},{"location":"tips/#how-to-intrepret-the-output-from-console-2","title":"How to intrepret the output from console? (2)","text":"

If the Analysis microstructure (-m) is added to the previous command: 

.\\Scaffolder.exe .\\cube20mm.stl out.stl gyroid,0.6283,0.61,100 -m\n

an additional output from microstructure measurement will be reported (Line 47). 

[Scaffolder v1.5.1]\n-- Input file: .\\cube20mm.stl\n-- Output file: out.stl\n-- Surface (-n): gyroid\n-- Coff (-c): 0.6283\n-- Isolevel (-t): 0.61\n-- Grid size (-g): 100\n--   Grid offset: 3\n--   Shell: 0\n-- Autoclean: True\n--   Minimum diameter: 25%\n--   Smooth step: 5\n--   Fix self-intersect: False\n--   Quadric Simplification (-z): 0\n-- Analysis microstructure (-m): True\n--   Slice grid (k_slice): 100\n--   Nearest outer contours (k_polygon): 4\n--   Export microstructure: False\n--   Mean curvature: False\n-- Export JPEG: No\n--   Axis: X\n-- Build: Yes(Intersect)\n-- Bounding Box: [0, 0, 0] [20, 20, 20]\n-- Length: [20, 20, 20]\n-- Grid delta: 0.2\n[Generating grid] OK\n-- Grid size: 1191016 [106, 106, 106]\n[Calculating Winding number] OK\n-- Sign Distance: [ -1.03923, 9.99999]  Wind: [ -2.86488e-06, 1]\n[Generating isosurface Fxyz] OK\n[Marching Cube]\n[========================================] 100% 0.202s\n-- Info: 105896 vertices 211896 faces\n[libVCG Cleaning] OK\n[Laplacian smoothing] OK\n-- is_manifold: 1\n[Topology Measurement]\n-- Mesh is composed by 1 connected component(s)\n-- border edge: 0\n-- non-manifold edge: 0\n-- non-manifold vertex: 0\n-- self-intersect faces: 840\n-- Mesh is two-manifold\n-- Mesh has 0 holes\n-- Genus is 27\n[=======================================>] 98% 1.939s\n[Microstructure]\n-- Avg Min Feret: 3.1344\n-- Avg Max Feret: 8.62469\n-- Min Feret: [1.05429 2.39338 3.18016 3.8397 9.99987]\n-- Max Feret: [3.52792 5.91049 7.67635 11.9059 14.8046]\n-- Square Similarity: [0 0 0 0 0]\n-- Circle Similarity: [0 0 0 0 0]\n-- Triangle Similarity: [0 0 0 0 0]\n-- Ellipse Similarity: [0 0 0 0 0]\n-- Elongation Similarity: [0 0 0 0 0]\n[Scaffold properties]\n-- Volume: 2267.63\n-- Surface Area: 2855.25\n-- Porosity: 0.716547\n-- Surface Area ratio: 1.18969\n[Writing file] OK\n[Finished]\n

"},{"location":"tips/#feret-diameter","title":"Feret Diameter","text":"

Feret diameter, or caliper diameter, is a diameter of an object measured with a caliper. According to the above image, \\(\\upvarphi\\) and \\(\\Phi\\) are the minimum and maximum Feret diameter, respectively.

The minimum and maximum of Feret diameters are collected. The interquartile ranges (IQR) reported in Line 50-51 are formatted as [Min, Q1, Median, Q3, Max].

"},{"location":"tpms/","title":"TPMS","text":""},{"location":"tutorial_1/","title":"Gyroid Sphere","text":"

In this tutorial, we will generate gyroid scaffold from sphere.stl whose bounding box is \\(2 \\times 2 \\times 2\\). In order to generate porous mesh, the implicit function (gyroid for this case), angular frequency (\\(w\\)), and isolevel (\\(t\\)) are required (See Command line).

"},{"location":"tutorial_1/#angular-frequency","title":"Angular frequency","text":"

According to prior study, \\(w\\) is inversely proportational to the pore size (see Tips). That is, when \\(w\\) increases, the pore size will be decreased. For gyroid, \\(w \\approx \\pi/\\text{pore size}\\). If we want pore size of 0.25 (unit as same as sphere.stl), we try to initially set \\(w = \\pi/0.25 \\approx 12\\)

"},{"location":"tutorial_1/#isolevel","title":"Isolevel","text":"

\\(t\\) is directly proportional to the porosity. In the other word, if we want to increase porosity, we have to increase \\(t\\)!. However, some values of \\(t\\) are probably lead to the problematic 3D mesh. Thus we initially leave this value to the default (\\(t=0\\)).

"},{"location":"tutorial_1/#grid-size","title":"Grid size","text":"

Grid size is a resolution of the output 3D mesh. Unless we generate a 3D mesh for FEA, this parameter is leave as a default value of 100.

Parameters summary

input file = sphere.stl, surface = gyroid, coff (\\(w\\)) = 12, isolevel (\\(t\\)) = 0, grid size = 100

"},{"location":"tutorial_1/#command-line","title":"Command line","text":"

Scaffolder sphere.stl out.stl gyroid,12,0,100 -m\n
We add -m or --microstructure to enable the pore size evaluation. Then the console output is reported as the following: 
[Scaffolder v1.5.1]\n-- Input file: .\\sphere.stl\n-- Output file: out.stl\n-- Surface (-n): gyroid\n-- Coff (-c): 12\n-- Isolevel (-t): 0 \n-- Grid size (-g): 100\n--   Grid offset: 3\n--   Shell: 0\n-- Autoclean: True\n--   Minimum diameter: 25%\n--   Smooth step: 5\n--   Fix self-intersect: False\n--   Quadric Simplification (-z): 0\n-- Analysis microstructure (-m): True\n--   Slice grid (k_slice): 100\n--   Nearest outer contours (k_polygon): 4\n--   Export microstructure: False\n--   Mean curvature: False\n-- Export JPEG: No\n--   Axis: X\n-- Build: Yes(Intersect)\n-- Bounding Box: [-0.9995, -0.9995, -0.9995] [0.9995, 0.9995, 0.9995]\n-- Length: [1.999, 1.999, 1.999]\n-- Grid delta: 0.01999\n[Generating grid] OK\n-- Grid size: 1191016 [106, 106, 106]\n[Calculating Winding number] OK\n-- Sign Distance: [ -0.834758, 0.998785]  Wind: [ -0.00238368, 1.00151]\n[Generating isosurface Fxyz] OK\n[Marching Cube]\n[========================================] 100% 0.194s\n-- Info: 118708 vertices 237636 faces\n[libVCG Cleaning] OK\n-- is_manifold: 1\n[Topology Measurement]\n-- Mesh is composed by 1 connected component(s)\n-- border edge: 0\n-- non-manifold edge: 0\n-- non-manifold vertex: 0\n-- self-intersect faces: 1831\n-- Mesh is two-manifold\n-- Mesh has 0 holes\n-- Genus is 107\n[=======================================>] 98% 2.1s7s\n[Microstructure]\n-- Avg Min Feret: 0.0893954\n-- Avg Max Feret: 0.606401\n-- Min Feret: [0.00073122 0.033939 0.105832 0.131947 0.615222]\n-- Max Feret: [0.00132485 0.243246 0.630859 0.723238 1.91447]\n-- Square Similarity: [0 0 0 0 0]\n-- Circle Similarity: [0 0 0 0 0]\n-- Triangle Similarity: [0 0 0 0 0]\n-- Ellipse Similarity: [0 0 0 0 0]\n-- Elongation Similarity: [0 0 0 0 0]\n[Scaffold properties]\n-- Volume: 2.04856\n-- Surface Area: 29.5085\n-- Porosity: 0.508139\n-- Surface Area ratio: 2.35532\n[Writing file] OK\n[Finished]\n

"},{"location":"tutorial_1/#adjust-isolevel-for-60-porosity","title":"Adjust isolevel for 60% porosity","text":"

Suppose that the target porosity is 60%. Then we increase \\(t\\) to 1 and generate 3D mesh again

Scaffolder sphere.stl out.stl gyroid,12,1,100 -m -q\n

This time, we add -q or --quite to prevent the verbose output. The program will save the report in a file (<output_name>_<surface><timestamp>.txt) instead. We use binary search to adjust the new value of \\(t\\) to find the optimal value with the 60% porosity.

\\(t\\) 0 1 0.5 0.25 0.375 0.3125 0.28 0.265 Porosity 0.508 0.85 0.67 0.59 0.634 0.613 0.602 0.597

We can also use the classical numerical method called Secant method to find the optimal \\(t\\) for the target porosity.

\\[ F(t) = Porosity(t) - 0.6 = 0 \\] \\[ t_{next} = t_{current} - F(t_{current})\\frac{t_{current} - t_{old}}{F(t_{current}) - F(t_{old})} \\] \\[ t_{next} = t_{current} - (\\text{Porosity}_{current} - 0.6)\\frac{t_{current} - t_{old}}{\\text{Porosity}_{current} - \\text{Porosity}_{old}} \\] \\(t\\) 0 1 0.27 Porosity 0.508 0.85 0.5989"},{"location":"tutorial_2/","title":"TPMS with Python through SDF and PyScaffolder","text":"

Author: Jirawat Iamsamang Colab: https://github.com/nodtem66/Scaffolder/blob/master/docs/jupyter/TPMS.ipynb

"},{"location":"tutorial_2/#abstract","title":"Abstract","text":"

SDF provides a class for discretizing and visualizing any implicit surfaces. The basic topologies (e.g. sphere, box) are already defined.

This notebook shows how to utilize this library to generate gyroid surface.

"},{"location":"tutorial_2/#installation","title":"Installation","text":"

  • Currently, SDF is not in PyPI. So the github of SDF needs to clone into local computer. See Installation

  • PyScaffolder can be installed by pip install PyScaffolder

"},{"location":"tutorial_2/#the-list-of-implicit-functions","title":"The list of implicit functions","text":"Name F(x,y,z) Schwarz-P cos\u2061(x)+cos\u2061(y)+cos\u2061(z) Double Schwarz-P cos\u2061(x) cos\u2061(y)+ cos\u2061(y) cos\u2061(z)+ cos\u2061(x) cos\u2061(z)+ 0.35 [cos\u2061(2x)+cos\u2061(2y)+cos\u2061(2z)] Diamond sin\u2061(x) sin\u2061(y) sin\u2061(z)+sin\u2061(x) cos\u2061(y) cos\u2061(z) + cos\u2061(x) sin\u2061(y) cos\u2061(z)+ cos\u2061(x) cos\u2061(y) sin\u2061(z) Double Diamond sin\u2061(2x) sin\u2061(2y)+ sin\u2061(2y) sin\u2061(2z) + sin\u2061(2z) sin\u2061(2x)+ cos\u2061(2x) cos\u2061(2y) cos\u2061(2z) Gyroid cos\u2061(x) sin\u2061(y)+cos\u2061(y) sin\u2061(x)+cos\u2061(z) sin\u2061(x) Double Gyroid 2.75 [ sin(2x) sin\u2061(z) cos\u2061(y)+sin\u2061(2y) sin\u2061(x) cos\u2061(z) + sin\u2061(2z) sin\u2061(y) cos\u2061(x) ] - [ cos\u2061(2x)cos\u2061(2y)+ cos\u2061(2y) cos\u2061(2z)+cos\u2061(2z) cos\u2061(2x) ] Lidinoid sin\u2061(2x) cos\u2061(y) sin\u2061(z)+sin\u2061(2y) cos\u2061(z) sin\u2061(x)+ sin\u2061(2z) cos\u2061(x) sin\u2061(y)+ cos\u2061(2x) cos\u2061(2y)+ cos\u2061(2y) cos\u2061(2z)+cos\u2061(2z) cos\u2061(2x) Neovius 3 [cos\u2061(x)+cos\u2061(y)+cos\u2061(z) ]+4 [cos\u2061(x) cos\u2061(y) cos\u2061(z) ] Schoen IWP cos\u2061(x) cos\u2061(y)+cos\u2061(y) cos\u2061(z)+cos\u2061(z) cos\u2061(x) Tubular G AB 20 [cos\u2061(x) sin\u2061(y) + cos\u2061(y) sin\u2061(z)+cos\u2061(z) sin\u2061(x) ] -0.5 [cos\u2061(2x) cos\u2061(2y)+cos\u2061(2y) cos\u2061(2z)+cos\u2061(2z) cos\u2061(2x) ] -4 Tubular G C -10 [cos\u2061(x) sin\u2061(y)+cos\u2061(y) sin\u2061(z)+cos\u2061(z) sin\u2061(x) ] +2[cos\u2061(2x) cos\u2061(2y)+cos\u2061(2y) cos\u2061(2z)+cos\u2061(2z) cos\u2061(2x) ] +12 BCC cos\u2061(x)+cos\u2061(y)+cos\u2061(z)-2 [ cos\u2061(x/2)cos\u2061(y/2) + cos\u2061(y/2)cos\u2061(z/2)+cos\u2061(z/2)cos\u2061(x/2) ]"},{"location":"tutorial_2/#gyroid","title":"Gyroid","text":"

The gyroid function is defined as shown in a following cell.

The wrapper @sdf3 will provide gyroid function with 3D points (p)).

Then these (x,y, z) points will multiply by w and calculate the iso-level of gyroid by vectorized numpy function. 

%load_ext autoreload\n%autoreload 2\n\nimport numpy as np\nimport PyScaffolder\nfrom sdf import *\n\n@sdf3\ndef gyroid(w = 3.14159, t=0):\n    def f(p):\n        q = w*p\n        x, y, z = (q[:, i] for i in range(3))\n        return np.cos(x)*np.sin(y) + np.cos(y)*np.sin(z) + np.cos(z)*np.sin(x) - t\n    return f\n
"},{"location":"tutorial_2/#generate-with-skimage","title":"Generate with SKimage","text":"

SDF used marching_cubes from skimage.measure with a ThreadPool, so it's super fast to construct the 3D mesh. Let's create a constructing function that intersect a gyroid and a unit box.

# Generate with skimage.measure.marching_cubes\nf = box(1) & gyroid(w=12)\npoints = f.generate(step=0.01, verbose=True)\n\nwrite_binary_stl('out_1.stl', points)\n
min -0.565721, -0.565721, -0.565721\nmax 0.565722, 0.565722, 0.565722\nstep 0.01, 0.01, 0.01\n1601613 samples in 64 batches with 16 workers\n\n7 skipped, 0 empty, 57 nonempty\n233958 triangles in 0.659682 seconds\n
"},{"location":"tutorial_2/#generate-with-pyscaffolder","title":"Generate with PyScaffolder","text":"

However, this method occasionally results in incomplete mesh. Then let's try Pyscaffolder.marching_cubes which implements dual marching cubes from @dominikwodniok/dualmc.

# Generate with PyScaffolder.marching_cubes\n\ndef marching_cubes(f, step=0.01, bounds=None, verbose=True, clean=True):\n    from sdf.mesh import _estimate_bounds, _cartesian_product\n    import time\n\n    if not bounds:\n        bounds = _estimate_bounds(f)\n\n    (x0, y0, z0), (x1, y1, z1) = bounds\n\n    try:\n        dx, dy, dz = step\n    except TypeError:\n        dx = dy = dz = step\n\n    if verbose:\n        print('min %g, %g, %g' % (x0, y0, z0))\n        print('max %g, %g, %g' % (x1, y1, z1))\n        print('step %g, %g, %g' % (dx, dy, dz))\n\n    X = np.arange(x0, x1, dx)\n    Y = np.arange(y0, y1, dy)\n    Z = np.arange(z0, z1, dz)\n    P = _cartesian_product(X, Y, Z)\n\n    try:\n        # Since the PyScaffolder marching_cubes aceept FREP: F(x,y,z) > 0\n        # Then the negative of implicit function is used\n        Fxyz = (-f(P))\n        # Reshape to Fortran array (column-based) due to implementation of dualmc starting from z axis to x\n        Fxyz = Fxyz.reshape((len(X), len(Y), len(Z))).reshape(-1, order='F')\n        start = time.time()\n        (v, f) = PyScaffolder.marching_cubes(Fxyz, grid_size=[len(X), len(Y), len(Z)], v_min=bounds[0], delta=step, clean=clean)\n        if verbose:\n            seconds = time.time() - start\n            print('\\n%d triangles in %g seconds' % (len(points) // 3, seconds))\n        # merge vertices and faces into points\n        return v[f].reshape((-1, 3))\n\n    except Exception as e:\n        print(e)\n        return np.array([])\n\npoints = marching_cubes(f, step=0.01, verbose=True, clean=True)\nwrite_binary_stl('out_2.stl', points)\n
"},{"location":"tutorial_2/#generate-the-other-tpms","title":"Generate the other TPMS","text":"

The following codes will define and generate SchwarzP and BCC structure.

Define the implicit functions

@sdf3\ndef schwarz_p(w = 3.14159, t=0):\n    def f(p):\n        q = w*p\n        x, y, z = (q[:, i] for i in range(3))\n        return np.cos(x) + np.cos(y) + np.cos(z)\n    return f\n\n@sdf3\ndef bcc(w = 3.14159, t=0):\n    def f(p):\n        q = w*p\n        x, y, z = (q[:, i] for i in range(3))\n        return np.cos(x) + np.cos(y) + np.cos(z) -2*(np.cos(x/2)*np.cos(y/2) + np.cos(y/2)*np.cos(z/2) + np.cos(z/2)*np.cos(x/2))\n    return f\n
Generate STL

# Define f2 as an union between Schwarz P and a box\nf2 = box(1) & schwarz_p(w=12)\npoints = marching_cubes(f2, step=0.01, verbose=True, clean=True)\nwrite_binary_stl('schwarz_p.stl', points)\n\n# Likewise, f3 was defined as an union between BCC and a box\nf3 = box(1) & bcc(w=12)\npoints = marching_cubes(f3, step=0.01, verbose=True, clean=True)\nwrite_binary_stl('bcc.stl', points)\n
"}]} \ No newline at end of file diff --git a/sitemap.xml b/sitemap.xml new file mode 100644 index 0000000..f142f8a --- /dev/null +++ b/sitemap.xml @@ -0,0 +1,58 @@ + + + + http://github.com/nodtem66/scaffolder/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/blender/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/cmd/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/installation/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/other_tools/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/python/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/tips/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/tpms/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/tutorial_1/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/tutorial_2/ + 2024-04-24 + daily + + + http://github.com/nodtem66/scaffolder/includes/abbreviations/ + 2024-04-24 + daily + + \ No newline at end of file diff --git a/sitemap.xml.gz b/sitemap.xml.gz new file mode 100644 index 0000000..efb90d2 Binary files /dev/null and b/sitemap.xml.gz differ diff --git a/stl/sphere.stl b/stl/sphere.stl new file mode 100644 index 0000000..5fb27f7 Binary files /dev/null and b/stl/sphere.stl differ diff --git a/tips/index.html b/tips/index.html new file mode 100644 index 0000000..50e99a1 --- /dev/null +++ b/tips/index.html @@ -0,0 +1,1202 @@ + + + + + + + + + + + + + + + + + + + + + + + Tips - Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Tips

+

What is the value of \(w\) used for pore size \(x\)?

+

The angular frequency (\(w\)) control the number of repetitive TPMS units:

+
\[ +w = 2\pi / T = 2\pi N / L +\]
+

where \(T\) = period or length of a unit cell, \(N\) = the number of unit cells, and \(L\) = the length of input 3D mesh.

+

For example, if we want \(N=2\) in cube20mm.stl (\(L=20mm\)), \(w\) will be \(2\pi*2/20 = \pi/5\) +(the unit of \(L\) has the same dimension with the input mesh).

+

Gyroid

+

The image show the Gyroid (left) and Double-Gyroid (right) with \(w=\pi/5\) and \(t=0\). The pore size \(x \approx T/2\) +for Gyroid and \(T/4\) for Double-Gyroid. Then,

+
\[ +w \approx \left\{ +\begin{array}{l} +\pi/x, & \text{for gyroid} \\ +\pi/2x, & \text{for double-gyroid} +\end{array} +\right. +\]
+

If we want a gyroid with \(x=5mm\), we will set \(w=\pi/5\).

+

Example:

+

./Scaffolder cube20mm.stl out.ply -c 3.14159 -g 100 -n tubulat_g_ab
+
+Program will generate the scaffold from cube20mm.stl (\(L=20mm\)) with theoretical \(N=10\)

+

How to reduce the size of 3D mesh?

+

Scaffolder uses the Quadratic decimation from MeshLab to reduce the result 3D mesh with an option --size_optimize (-z). +For example, the following command is used to generate a gyroid with 50% decimation, thus resulting the 50% less faces: +

./Scaffolder input.stl out.stl gyroid,0.6283,0.61,200 -z 0.5
+

+
+

Note

+

You can manually reduce the size by using MeshLab: Filter > Remeshing, Simplification, and Reconstruction > Simplification: Quadric Edge Collapse Decimation

+
+

How to intrepret the output from console?

+

Suppose that the following command was used: +

.\Scaffolder.exe .\cube20mm.stl out.stl gyroid,0.6283,0.61,100
+

+

Then this is an output generated by program with default options (--format default) +

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[Scaffolder v1.5.1]
+-- Input file: .\cube20mm.stl
+-- Output file: out.stl
+-- Surface (-n): gyroid
+-- Coff (-c): 0.6283
+-- Isolevel (-t): 0.61
+-- Grid size (-g): 100
+--   Grid offset: 3
+--   Shell: 0
+-- Autoclean: True
+--   Minimum diameter: 25%
+--   Smooth step: 5
+--   Fix self-intersect: False
+--   Quadric Simplification (-z): 0
+-- Analysis microstructure (-m): False
+--   Slice grid (k_slice): 100
+--   Nearest outer contours (k_polygon): 4
+--   Export microstructure: False
+--   Mean curvature: False
+-- Export JPEG: No
+--   Axis: X
+-- Build: Yes(Intersect)
+-- Bounding Box: [0, 0, 0] [20, 20, 20]
+-- Length: [20, 20, 20]
+-- Grid delta: 0.2
+[Generating grid] OK
+-- Grid size: 1191016 [106, 106, 106]
+[Calculating Winding number] OK
+-- Sign Distance: [ -1.03923, 9.99999]  Wind: [ -2.86488e-06, 1]
+[Generating isosurface Fxyz] OK
+[Marching Cube]
+[========================================] 100% 0.178s
+-- Info: 105896 vertices 211896 faces
+[libVCG Cleaning] OK
+[Laplacian smoothing] OK
+-- is_manifold: 1
+[Topology Measurement]
+-- Mesh is composed by 1 connected component(s)
+-- border edge: 0
+-- non-manifold edge: 0
+-- non-manifold vertex: 0
+-- self-intersect faces: 840
+-- Mesh is two-manifold
+-- Mesh has 0 holes
+-- Genus is 27
+[Scaffold properties]
+-- Volume: 2267.63
+-- Surface Area: 2855.25
+-- Porosity: 0.716547
+-- Surface Area ratio: 1.18969
+[Writing file] OK
+[Finished]
+

+

Parameters summary (Lines 1-25)

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
LineParameter (value)DetailRefer to a process at
2Input file (cube20mm.stl)Path to input fileLine 26,Line 28
3Output file (out.stl)Path to output fileLine 51
4Surface (gyroid)TPMS typesLine 30
5Coff (0.6283)Angular frequency (\(w\))Line 30
6Isolevel (0.61)Isolevel (\(t\))Line 30
7Grid size (100)Grid ResolutionLine 26
8Grid offset (3)Padding size adding to gridLine 26
9Shell (0)Depth of solid shellLine 30
10Autoclean (True)Clean 3D MeshLine 34
11Minimum diameter (25%)Minimal diameter (% of diagonal length of bounding box) to classify the small components in cleaning processLine 34
12Smooth step (5)Steps to Laplacian smoothingLine 35
13Fix self-intersect (False)Whether the program should fix the self-intersect or notLine 34
14Quadric Simplification (0)% triangles reductionNA
15Analysis microstructure (False)Report the pore sizeNA
16Slice grid (100)\(k_{slice}\) (the number of slice layers)NA
17Nearest outer contours (4)\(k_{polygon}\)NA
18Export microstructure (False)Export the SVG of sliced layersNA
19Mean curvature (False)Calculate the mean curvatureNA
20Export JPEG (No)Export sliced layerNA
21Axis (X)Axis to slice 3D MeshNA
22Build (True)Generate 3D MeshLine 51
23Bounding Box ([0, 0, 0] [20, 20, 20])Two points of bounding boxLine 26
24Length ([20, 20, 20])\(\text{Length}\) of bonding box in [x, y, z]Line 26
25Grid delta (0.2)\(min(\text{Length})/\text{grid size}\)Line 26
+

Grid Generation (Line 26)

+

The voxels were generated based on \(\text{Length}/\text{Grid delta} + 2(\text{Grid offset})\).
+In this case, the grid size of (X, Y, Z) is \((20, 20, 20)/0.2 + 2(3) = (106, 106, 106)\)
+and the total number of voxels is \(106\times106\times106=1191016\)

+

Winding number and SDF calculation (Line 28)

+

The winding number and SDF with \(106\times106\times106\) voxels was calculated based on vertices and faces from input file.

+

Surface Generation (Line 30)

+

By combining \(w\) (0.6283), \(t\) (0.61), implicit function (gyroid), and input SDF, the output SDF was constructed.

+

Surface visualization (Line 31)

+

The trigular mesh was generated from output SDF by dual marching cubes algorithm

+

Cleaning (Line 34)

+

If autoclean option is enabled, the trigular mesh was cleaned by VGClib.

+

Smoothing (Line 35)

+

The Laplacian smooth is used to fix the mis-shape faces from dual marching cube algorithm.

+

Topology properties (Line 37)

+

In order to fabricate with 3D printer, make sure that 3D mesh is watertight. +Thus, the program asserts whether the 3D mesh is two-manifold or not. Moreover, the number non-manifold and border edges are reported, which should be zero to ensure the watertight property of the 3D mesh.

+

Scaffold properties (Line 46)

+

Finally, the scaffold property such as volume (\(\text{unit}^3\)), surface area (\(\text{unit}^2\)), porosity, and surface area ratio were reported.

+
\[ +Porosity = 1 - \left|\frac{\text{Volume}_{output}}{\text{Volume}_{input}}\right| +\]
+
\[ +\text{Surface Area Ratio (SAR)} = \left|\frac{\text{Surface area}_{output}}{\text{Surface area}_{input}}\right| +\]
+

How to intrepret the output from console? (2)

+

If the Analysis microstructure (-m) is added to the previous command: +

.\Scaffolder.exe .\cube20mm.stl out.stl gyroid,0.6283,0.61,100 -m
+

+

an additional output from microstructure measurement will be reported (Line 47). +

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[Scaffolder v1.5.1]
+-- Input file: .\cube20mm.stl
+-- Output file: out.stl
+-- Surface (-n): gyroid
+-- Coff (-c): 0.6283
+-- Isolevel (-t): 0.61
+-- Grid size (-g): 100
+--   Grid offset: 3
+--   Shell: 0
+-- Autoclean: True
+--   Minimum diameter: 25%
+--   Smooth step: 5
+--   Fix self-intersect: False
+--   Quadric Simplification (-z): 0
+-- Analysis microstructure (-m): True
+--   Slice grid (k_slice): 100
+--   Nearest outer contours (k_polygon): 4
+--   Export microstructure: False
+--   Mean curvature: False
+-- Export JPEG: No
+--   Axis: X
+-- Build: Yes(Intersect)
+-- Bounding Box: [0, 0, 0] [20, 20, 20]
+-- Length: [20, 20, 20]
+-- Grid delta: 0.2
+[Generating grid] OK
+-- Grid size: 1191016 [106, 106, 106]
+[Calculating Winding number] OK
+-- Sign Distance: [ -1.03923, 9.99999]  Wind: [ -2.86488e-06, 1]
+[Generating isosurface Fxyz] OK
+[Marching Cube]
+[========================================] 100% 0.202s
+-- Info: 105896 vertices 211896 faces
+[libVCG Cleaning] OK
+[Laplacian smoothing] OK
+-- is_manifold: 1
+[Topology Measurement]
+-- Mesh is composed by 1 connected component(s)
+-- border edge: 0
+-- non-manifold edge: 0
+-- non-manifold vertex: 0
+-- self-intersect faces: 840
+-- Mesh is two-manifold
+-- Mesh has 0 holes
+-- Genus is 27
+[=======================================>] 98% 1.939s
+[Microstructure]
+-- Avg Min Feret: 3.1344
+-- Avg Max Feret: 8.62469
+-- Min Feret: [1.05429 2.39338 3.18016 3.8397 9.99987]
+-- Max Feret: [3.52792 5.91049 7.67635 11.9059 14.8046]
+-- Square Similarity: [0 0 0 0 0]
+-- Circle Similarity: [0 0 0 0 0]
+-- Triangle Similarity: [0 0 0 0 0]
+-- Ellipse Similarity: [0 0 0 0 0]
+-- Elongation Similarity: [0 0 0 0 0]
+[Scaffold properties]
+-- Volume: 2267.63
+-- Surface Area: 2855.25
+-- Porosity: 0.716547
+-- Surface Area ratio: 1.18969
+[Writing file] OK
+[Finished]
+

+

Feret Diameter

+

Feret

+

Feret diameter, or caliper diameter, is a diameter of an object measured with a caliper. +According to the above image, \(\upvarphi\) and \(\Phi\) are the minimum and maximum Feret diameter, respectively.

+

The minimum and maximum of Feret diameters are collected. +The interquartile ranges (IQR) reported in Line 50-51 are formatted as [Min, Q1, Median, Q3, Max].

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+ + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/tpms/index.html b/tpms/index.html new file mode 100644 index 0000000..11322e4 --- /dev/null +++ b/tpms/index.html @@ -0,0 +1,619 @@ + + + + + + + + + + + + + + + + + + + + + TPMS - Scaffolder + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Gyroid Sphere

+

In this tutorial, we will generate gyroid scaffold from sphere.stl whose bounding box is +\(2 \times 2 \times 2\). In order to generate porous mesh, the implicit function (gyroid for this case), +angular frequency (\(w\)), and isolevel (\(t\)) are required (See Command line).

+

Angular frequency

+

According to prior study, +\(w\) is inversely proportational to the pore size (see Tips). That is, when \(w\) increases, +the pore size will be decreased. For gyroid, \(w \approx \pi/\text{pore size}\). If we want pore size of 0.25 +(unit as same as sphere.stl), we try to initially set \(w = \pi/0.25 \approx 12\)

+

Isolevel

+

\(t\) is directly proportional to the porosity. In the other word, if we want to increase porosity, we have to increase \(t\)!. +However, some values of \(t\) are probably lead to the problematic 3D mesh. Thus we initially leave this value to the default (\(t=0\)).

+

Grid size

+

Grid size is a resolution of the output 3D mesh. Unless we generate a 3D mesh for FEA, this parameter is leave as a default value of 100.

+
+

Parameters summary

+

input file = sphere.stl, surface = gyroid, coff (\(w\)) = 12, isolevel (\(t\)) = 0, grid size = 100

+
+

Command line

+

Scaffolder sphere.stl out.stl gyroid,12,0,100 -m
+
+We add -m or --microstructure to enable the pore size evaluation. Then the console output is reported as the following: +
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[Scaffolder v1.5.1]
+-- Input file: .\sphere.stl
+-- Output file: out.stl
+-- Surface (-n): gyroid
+-- Coff (-c): 12
+-- Isolevel (-t): 0 
+-- Grid size (-g): 100
+--   Grid offset: 3
+--   Shell: 0
+-- Autoclean: True
+--   Minimum diameter: 25%
+--   Smooth step: 5
+--   Fix self-intersect: False
+--   Quadric Simplification (-z): 0
+-- Analysis microstructure (-m): True
+--   Slice grid (k_slice): 100
+--   Nearest outer contours (k_polygon): 4
+--   Export microstructure: False
+--   Mean curvature: False
+-- Export JPEG: No
+--   Axis: X
+-- Build: Yes(Intersect)
+-- Bounding Box: [-0.9995, -0.9995, -0.9995] [0.9995, 0.9995, 0.9995]
+-- Length: [1.999, 1.999, 1.999]
+-- Grid delta: 0.01999
+[Generating grid] OK
+-- Grid size: 1191016 [106, 106, 106]
+[Calculating Winding number] OK
+-- Sign Distance: [ -0.834758, 0.998785]  Wind: [ -0.00238368, 1.00151]
+[Generating isosurface Fxyz] OK
+[Marching Cube]
+[========================================] 100% 0.194s
+-- Info: 118708 vertices 237636 faces
+[libVCG Cleaning] OK
+-- is_manifold: 1
+[Topology Measurement]
+-- Mesh is composed by 1 connected component(s)
+-- border edge: 0
+-- non-manifold edge: 0
+-- non-manifold vertex: 0
+-- self-intersect faces: 1831
+-- Mesh is two-manifold
+-- Mesh has 0 holes
+-- Genus is 107
+[=======================================>] 98% 2.1s7s
+[Microstructure]
+-- Avg Min Feret: 0.0893954
+-- Avg Max Feret: 0.606401
+-- Min Feret: [0.00073122 0.033939 0.105832 0.131947 0.615222]
+-- Max Feret: [0.00132485 0.243246 0.630859 0.723238 1.91447]
+-- Square Similarity: [0 0 0 0 0]
+-- Circle Similarity: [0 0 0 0 0]
+-- Triangle Similarity: [0 0 0 0 0]
+-- Ellipse Similarity: [0 0 0 0 0]
+-- Elongation Similarity: [0 0 0 0 0]
+[Scaffold properties]
+-- Volume: 2.04856
+-- Surface Area: 29.5085
+-- Porosity: 0.508139
+-- Surface Area ratio: 2.35532
+[Writing file] OK
+[Finished]
+

+

Adjust isolevel for 60% porosity

+

Suppose that the target porosity is 60%. Then we increase \(t\) to 1 and generate 3D mesh again

+
Scaffolder sphere.stl out.stl gyroid,12,1,100 -m -q
+
+

This time, we add -q or --quite to prevent the verbose output. The program will save the report in a file (<output_name>_<surface><timestamp>.txt) instead. +We use binary search to adjust the new value of \(t\) to find the optimal value with the 60% porosity.

+ + + + + + + + + + + + + + + + + + + + + + + + + + + +
\(t\)010.50.250.3750.31250.280.265
Porosity0.5080.850.670.590.6340.6130.6020.597
+

We can also use the classical numerical method called Secant method to find the optimal \(t\) for the target porosity.

+
\[ +F(t) = Porosity(t) - 0.6 = 0 +\]
+
\[ +t_{next} = t_{current} - F(t_{current})\frac{t_{current} - t_{old}}{F(t_{current}) - F(t_{old})} +\]
+
\[ +t_{next} = t_{current} - (\text{Porosity}_{current} - 0.6)\frac{t_{current} - t_{old}}{\text{Porosity}_{current} - \text{Porosity}_{old}} +\]
+ + + + + + + + + + + + + + + + + +
\(t\)010.27
Porosity0.5080.850.5989
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TPMS with Python through SDF and PyScaffolder

+

Author: Jirawat Iamsamang
+Colab: https://github.com/nodtem66/Scaffolder/blob/master/docs/jupyter/TPMS.ipynb

+

Abstract

+

SDF provides a class for discretizing and visualizing any implicit surfaces. The basic topologies (e.g. sphere, box) are already defined.

+

This notebook shows how to utilize this library to generate gyroid surface.

+

Installation

+
    +
  • +

    Currently, SDF is not in PyPI. So the github of SDF needs to clone into local computer. See Installation

    +
    • +
  • +

    PyScaffolder can be installed by pip install PyScaffolder

    +
    • +
+

The list of implicit functions

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
NameF(x,y,z)
Schwarz-Pcos⁡(x)+cos⁡(y)+cos⁡(z)
Double Schwarz-Pcos⁡(x) cos⁡(y)+ cos⁡(y) cos⁡(z)+ cos⁡(x) cos⁡(z)+ 0.35 [cos⁡(2x)+cos⁡(2y)+cos⁡(2z)]
Diamondsin⁡(x) sin⁡(y) sin⁡(z)+sin⁡(x) cos⁡(y) cos⁡(z) + cos⁡(x) sin⁡(y) cos⁡(z)+ cos⁡(x) cos⁡(y) sin⁡(z)
Double Diamondsin⁡(2x) sin⁡(2y)+ sin⁡(2y) sin⁡(2z) + sin⁡(2z) sin⁡(2x)+ cos⁡(2x) cos⁡(2y) cos⁡(2z)
Gyroidcos⁡(x) sin⁡(y)+cos⁡(y) sin⁡(x)+cos⁡(z) sin⁡(x)
Double Gyroid2.75 [ sin(2x) sin⁡(z) cos⁡(y)+sin⁡(2y) sin⁡(x) cos⁡(z) + sin⁡(2z) sin⁡(y) cos⁡(x) ] - [ cos⁡(2x)cos⁡(2y)+ cos⁡(2y) cos⁡(2z)+cos⁡(2z) cos⁡(2x) ]
Lidinoidsin⁡(2x) cos⁡(y) sin⁡(z)+sin⁡(2y) cos⁡(z) sin⁡(x)+ sin⁡(2z) cos⁡(x) sin⁡(y)+ cos⁡(2x) cos⁡(2y)+ cos⁡(2y) cos⁡(2z)+cos⁡(2z) cos⁡(2x)
Neovius3 [cos⁡(x)+cos⁡(y)+cos⁡(z) ]+4 [cos⁡(x) cos⁡(y) cos⁡(z) ]
Schoen IWPcos⁡(x) cos⁡(y)+cos⁡(y) cos⁡(z)+cos⁡(z) cos⁡(x)
Tubular G AB20 [cos⁡(x) sin⁡(y) + cos⁡(y) sin⁡(z)+cos⁡(z) sin⁡(x) ] -0.5 [cos⁡(2x) cos⁡(2y)+cos⁡(2y) cos⁡(2z)+cos⁡(2z) cos⁡(2x) ] -4
Tubular G C-10 [cos⁡(x) sin⁡(y)+cos⁡(y) sin⁡(z)+cos⁡(z) sin⁡(x) ] +2[cos⁡(2x) cos⁡(2y)+cos⁡(2y) cos⁡(2z)+cos⁡(2z) cos⁡(2x) ] +12
BCCcos⁡(x)+cos⁡(y)+cos⁡(z)-2 [ cos⁡(x/2)cos⁡(y/2) + cos⁡(y/2)cos⁡(z/2)+cos⁡(z/2)cos⁡(x/2) ]
+

Gyroid

+

The gyroid function is defined as shown in a following cell.

+

The wrapper @sdf3 will provide gyroid function with 3D points (p)).

+

Then these (x,y, z) points will multiply by w and calculate the iso-level of gyroid by vectorized numpy function.

+
%load_ext autoreload
+%autoreload 2
+
+import numpy as np
+import PyScaffolder
+from sdf import *
+
+@sdf3
+def gyroid(w = 3.14159, t=0):
+    def f(p):
+        q = w*p
+        x, y, z = (q[:, i] for i in range(3))
+        return np.cos(x)*np.sin(y) + np.cos(y)*np.sin(z) + np.cos(z)*np.sin(x) - t
+    return f
+
+

Generate with SKimage

+

SDF used marching_cubes from skimage.measure with a ThreadPool, so it's super fast to construct the 3D mesh. +Let's create a constructing function that intersect a gyroid and a unit box.

+
# Generate with skimage.measure.marching_cubes
+f = box(1) & gyroid(w=12)
+points = f.generate(step=0.01, verbose=True)
+
+write_binary_stl('out_1.stl', points)
+
+
min -0.565721, -0.565721, -0.565721
+max 0.565722, 0.565722, 0.565722
+step 0.01, 0.01, 0.01
+1601613 samples in 64 batches with 16 workers
+
+7 skipped, 0 empty, 57 nonempty
+233958 triangles in 0.659682 seconds
+
+

Generate with PyScaffolder

+

However, this method occasionally results in incomplete mesh.
+Then let's try Pyscaffolder.marching_cubes which implements dual marching cubes from @dominikwodniok/dualmc.

+
# Generate with PyScaffolder.marching_cubes
+
+def marching_cubes(f, step=0.01, bounds=None, verbose=True, clean=True):
+    from sdf.mesh import _estimate_bounds, _cartesian_product
+    import time
+
+    if not bounds:
+        bounds = _estimate_bounds(f)
+
+    (x0, y0, z0), (x1, y1, z1) = bounds
+
+    try:
+        dx, dy, dz = step
+    except TypeError:
+        dx = dy = dz = step
+
+    if verbose:
+        print('min %g, %g, %g' % (x0, y0, z0))
+        print('max %g, %g, %g' % (x1, y1, z1))
+        print('step %g, %g, %g' % (dx, dy, dz))
+
+    X = np.arange(x0, x1, dx)
+    Y = np.arange(y0, y1, dy)
+    Z = np.arange(z0, z1, dz)
+    P = _cartesian_product(X, Y, Z)
+
+    try:
+        # Since the PyScaffolder marching_cubes aceept FREP: F(x,y,z) > 0
+        # Then the negative of implicit function is used
+        Fxyz = (-f(P))
+        # Reshape to Fortran array (column-based) due to implementation of dualmc starting from z axis to x
+        Fxyz = Fxyz.reshape((len(X), len(Y), len(Z))).reshape(-1, order='F')
+        start = time.time()
+        (v, f) = PyScaffolder.marching_cubes(Fxyz, grid_size=[len(X), len(Y), len(Z)], v_min=bounds[0], delta=step, clean=clean)
+        if verbose:
+            seconds = time.time() - start
+            print('\n%d triangles in %g seconds' % (len(points) // 3, seconds))
+        # merge vertices and faces into points
+        return v[f].reshape((-1, 3))
+
+    except Exception as e:
+        print(e)
+        return np.array([])
+
+points = marching_cubes(f, step=0.01, verbose=True, clean=True)
+write_binary_stl('out_2.stl', points)
+
+

Generate the other TPMS

+

The following codes will define and generate SchwarzP and BCC structure.

+

Define the implicit functions

+

@sdf3
+def schwarz_p(w = 3.14159, t=0):
+    def f(p):
+        q = w*p
+        x, y, z = (q[:, i] for i in range(3))
+        return np.cos(x) + np.cos(y) + np.cos(z)
+    return f
+
+@sdf3
+def bcc(w = 3.14159, t=0):
+    def f(p):
+        q = w*p
+        x, y, z = (q[:, i] for i in range(3))
+        return np.cos(x) + np.cos(y) + np.cos(z) -2*(np.cos(x/2)*np.cos(y/2) + np.cos(y/2)*np.cos(z/2) + np.cos(z/2)*np.cos(x/2))
+    return f
+
+Generate STL

+
# Define f2 as an union between Schwarz P and a box
+f2 = box(1) & schwarz_p(w=12)
+points = marching_cubes(f2, step=0.01, verbose=True, clean=True)
+write_binary_stl('schwarz_p.stl', points)
+
+# Likewise, f3 was defined as an union between BCC and a box
+f3 = box(1) & bcc(w=12)
+points = marching_cubes(f3, step=0.01, verbose=True, clean=True)
+write_binary_stl('bcc.stl', points)
+
+ + + + + + + + + + + + + +
+
+ + + +
+ + + +
+ + + +
+
+
+
+ + + + + + + + + + + + + + + + \ No newline at end of file