diff --git a/dist/openlayers-indoorequal.cjs.js b/dist/openlayers-indoorequal.cjs.js
index 4641771..353ecc7 100644
--- a/dist/openlayers-indoorequal.cjs.js
+++ b/dist/openlayers-indoorequal.cjs.js
@@ -11,6 +11,7 @@ var TileGrid = require('ol/tilegrid/TileGrid');
 var control = require('ol/control');
 var style = require('ol/style');
 var BaseObject = require('ol/Object');
+var debounce = require('debounce');
 
 function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
 
@@ -20,6 +21,7 @@ var TileJSON__default = /*#__PURE__*/_interopDefaultLegacy(TileJSON);
 var MVT__default = /*#__PURE__*/_interopDefaultLegacy(MVT);
 var TileGrid__default = /*#__PURE__*/_interopDefaultLegacy(TileGrid);
 var BaseObject__default = /*#__PURE__*/_interopDefaultLegacy(BaseObject);
+var debounce__default = /*#__PURE__*/_interopDefaultLegacy(debounce);
 
 function extentFromTileJSON(tileJSON) {
   var bounds = tileJSON.bounds;
@@ -367,6 +369,8 @@ class IndoorEqual extends BaseObject__default["default"] {
     this._changeLayerOnLevelChange();
 
     this._setLayerStyle();
+
+    this._resetLevelOnLevelsChange();
   }
   /**
    * Set the style for displayed features. This function takes a feature and resolution and returns an array of styles. If set to null, the layer has no style (a null style), so only features that have their own styles will be rendered in the layer. Call setStyle() without arguments to reset to the default style. See module:ol/style for information on the default style.
@@ -389,11 +393,13 @@ class IndoorEqual extends BaseObject__default["default"] {
   _listenForLevels() {
     this.layer.on('change:source', () => {
       const source = this.layer.getSource();
-      source.on('tileloadend', () => {
+      const refreshLevels = debounce__default["default"](() => {
         const extent = this.map.getView().calculateExtent(this.map.getSize());
         const features = source.getFeaturesInExtent(extent);
         this.set('levels', findAllLevels(features));
-      });
+      }, 1000);
+      source.on('tileloadend', refreshLevels);
+      this.map.getView().on('change:center', refreshLevels);
     });
   }
 
@@ -411,6 +417,14 @@ class IndoorEqual extends BaseObject__default["default"] {
     });
   }
 
+  _resetLevelOnLevelsChange() {
+    this.on('change:levels', () => {
+      if (!this.get('levels').includes(this.get('level'))) {
+        this.set('level', '0');
+      }
+    });
+  }
+
 }
 /**
  * Emitted when the list of available levels has been updated
diff --git a/dist/openlayers-indoorequal.esm.js b/dist/openlayers-indoorequal.esm.js
index d0d8a10..bf0913b 100644
--- a/dist/openlayers-indoorequal.esm.js
+++ b/dist/openlayers-indoorequal.esm.js
@@ -7,6 +7,7 @@ import TileGrid from 'ol/tilegrid/TileGrid';
 import { Control } from 'ol/control';
 import { Style, Stroke, Text, Fill, Icon } from 'ol/style';
 import BaseObject from 'ol/Object';
+import debounce from 'debounce';
 
 function extentFromTileJSON(tileJSON) {
   var bounds = tileJSON.bounds;
@@ -354,6 +355,8 @@ class IndoorEqual extends BaseObject {
     this._changeLayerOnLevelChange();
 
     this._setLayerStyle();
+
+    this._resetLevelOnLevelsChange();
   }
   /**
    * Set the style for displayed features. This function takes a feature and resolution and returns an array of styles. If set to null, the layer has no style (a null style), so only features that have their own styles will be rendered in the layer. Call setStyle() without arguments to reset to the default style. See module:ol/style for information on the default style.
@@ -376,11 +379,13 @@ class IndoorEqual extends BaseObject {
   _listenForLevels() {
     this.layer.on('change:source', () => {
       const source = this.layer.getSource();
-      source.on('tileloadend', () => {
+      const refreshLevels = debounce(() => {
         const extent = this.map.getView().calculateExtent(this.map.getSize());
         const features = source.getFeaturesInExtent(extent);
         this.set('levels', findAllLevels(features));
-      });
+      }, 1000);
+      source.on('tileloadend', refreshLevels);
+      this.map.getView().on('change:center', refreshLevels);
     });
   }
 
@@ -398,6 +403,14 @@ class IndoorEqual extends BaseObject {
     });
   }
 
+  _resetLevelOnLevelsChange() {
+    this.on('change:levels', () => {
+      if (!this.get('levels').includes(this.get('level'))) {
+        this.set('level', '0');
+      }
+    });
+  }
+
 }
 /**
  * Emitted when the list of available levels has been updated
diff --git a/dist/openlayers-indoorequal.umd.min.js b/dist/openlayers-indoorequal.umd.min.js
index c67c974..b146d41 100644
--- a/dist/openlayers-indoorequal.umd.min.js
+++ b/dist/openlayers-indoorequal.umd.min.js
@@ -1,3 +1,3 @@
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t,e=this.hitDetectionInstructions;e.reverse();var i,n,r=e.length,s=-1;for(t=0;t<r;++t)(n=(i=e[t])[0])==Ve.END_GEOMETRY?s=t:n==Ve.BEGIN_GEOMETRY&&(i[2]=t,o(this.hitDetectionInstructions,s,t),s=-1)},e.prototype.setFillStrokeStyle=function(t,e){var i=this.state;if(t){var n=t.getColor();i.fillStyle=Wt(n||Jt)}else i.fillStyle=void 0;if(e){var r=e.getColor();i.strokeStyle=Wt(r||te);var o=e.getLineCap();i.lineCap=void 0!==o?o:Ht;var s=e.getLineDash();i.lineDash=s?s.slice():$t;var a=e.getLineDashOffset();i.lineDashOffset=a||0;var l=e.getLineJoin();i.lineJoin=void 0!==l?l:Qt;var h=e.getWidth();i.lineWidth=void 0!==h?h:1;var u=e.getMiterLimit();i.miterLimit=void 0!==u?u:10,i.lineWidth>this.maxLineWidth&&(this.maxLineWidth=i.lineWidth,this.bufferedMaxExtent_=null)}else i.strokeStyle=void 0,i.lineCap=void 0,i.lineDash=null,i.lineDashOffset=void 0,i.lineJoin=void 0,i.lineWidth=void 0,i.miterLimit=void 0},e.prototype.createFill=function(t){var e=t.fillStyle,i=[Ve.SET_FILL_STYLE,e];return"string"!=typeof e&&i.push(!0),i},e.prototype.applyStroke=function(t){this.instructions.push(this.createStroke(t))},e.prototype.createStroke=function(t){return[Ve.SET_STROKE_STYLE,t.strokeStyle,t.lineWidth*this.pixelRatio,t.lineCap,t.lineJoin,t.miterLimit,this.applyPixelRatio(t.lineDash),t.lineDashOffset*this.pixelRatio]},e.prototype.updateFillStyle=function(t,e){var i=t.fillStyle;"string"==typeof i&&t.currentFillStyle==i||(void 0!==i&&this.instructions.push(e.call(this,t)),t.currentFillStyle=i)},e.prototype.updateStrokeStyle=function(t,e){var i=t.strokeStyle,n=t.lineCap,r=t.lineDash,o=t.lineDashOffset,s=t.lineJoin,l=t.lineWidth,h=t.miterLimit;(t.currentStrokeStyle!=i||t.currentLineCap!=n||r!=t.currentLineDash&&!a(t.currentLineDash,r)||t.currentLineDashOffset!=o||t.currentLineJoin!=s||t.currentLineWidth!=l||t.currentMiterLimit!=h)&&(void 0!==i&&e.call(this,t),t.currentStrokeStyle=i,t.currentLineCap=n,t.currentLineDash=r,t.currentLineDashOffset=o,t.currentLineJoin=s,t.currentLineWidth=l,t.currentMiterLimit=h)},e.prototype.endGeometry=function(t){this.beginGeometryInstruction1_[2]=this.instructions.length,this.beginGeometryInstruction1_=null,this.beginGeometryInstruction2_[2]=this.hitDetectionInstructions.length,this.beginGeometryInstruction2_=null;var e=[Ve.END_GEOMETRY,t];this.instructions.push(e),this.hitDetectionInstructions.push(e)},e.prototype.getBufferedMaxExtent=function(){if(!this.bufferedMaxExtent_&&(this.bufferedMaxExtent_=(e=this.maxExtent,i?(i[0]=e[0],i[1]=e[1],i[2]=e[2],i[3]=e[3],i):e.slice()),this.maxLineWidth>0)){var t=this.resolution*(this.maxLineWidth+1)/2;ri(this.bufferedMaxExtent_,t,this.bufferedMaxExtent_)}var e,i;return this.bufferedMaxExtent_},e}($e),Di=ji,Gi=window&&window.__extends||function(){var t=function(e,i){return t=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var i in e)Object.prototype.hasOwnProperty.call(e,i)&&(t[i]=e[i])},t(e,i)};return function(e,i){if("function"!=typeof i&&null!==i)throw new TypeError("Class extends value "+String(i)+" is not a constructor or null");function n(){this.constructor=e}t(e,i),e.prototype=null===i?Object.create(i):(n.prototype=i.prototype,new n)}}(),Wi=function(t){function e(e,i,n,r){var o=t.call(this,e,i,n,r)||this;return o.hitDetectionImage_=null,o.image_=null,o.imagePixelRatio_=void 0,o.anchorX_=void 0,o.anchorY_=void 0,o.height_=void 0,o.opacity_=void 0,o.originX_=void 0,o.originY_=void 0,o.rotateWithView_=void 0,o.rotation_=void 0,o.scale_=void 0,o.width_=void 0,o.declutterImageWithText_=void 0,o}return Gi(e,t),e.prototype.drawPoint=function(t,e){if(this.image_){this.beginGeometry(t,e);var i=t.getFlatCoordinates(),n=t.getStride(),r=this.coordinates.length,o=this.appendFlatPointCoordinates(i,n);this.instructions.push([Ve.DRAW_IMAGE,r,o,this.image_,this.anchorX_*this.imagePixelRatio_,this.anchorY_*this.imagePixelRatio_,Math.ceil(this.height_*this.imagePixelRatio_),this.opacity_,this.originX_,this.originY_,this.rotateWithView_,this.rotation_,[this.scale_[0]*this.pixelRatio/this.imagePixelRatio_,this.scale_[1]*this.pixelRatio/this.imagePixelRatio_],Math.ceil(this.width_*this.imagePixelRatio_),this.declutterImageWithText_]),this.hitDetectionInstructions.push([Ve.DRAW_IMAGE,r,o,this.hitDetectionImage_,this.anchorX_,this.anchorY_,this.height_,this.opacity_,this.originX_,this.originY_,this.rotateWithView_,this.rotation_,this.scale_,this.width_,this.declutterImageWithText_]),this.endGeometry(e)}},e.prototype.drawMultiPoint=function(t,e){if(this.image_){this.beginGeometry(t,e);var i=t.getFlatCoordinates(),n=t.getStride(),r=this.coordinates.length,o=this.appendFlatPointCoordinates(i,n);this.instructions.push([Ve.DRAW_IMAGE,r,o,this.image_,this.anchorX_*this.imagePixelRatio_,this.anchorY_*this.imagePixelRatio_,Math.ceil(this.height_*this.imagePixelRatio_),this.opacity_,this.originX_,this.originY_,this.rotateWithView_,this.rotation_,[this.scale_[0]*this.pixelRatio/this.imagePixelRatio_,this.scale_[1]*this.pixelRatio/this.imagePixelRatio_],Math.ceil(this.width_*this.imagePixelRatio_),this.declutterImageWithText_]),this.hitDetectionInstructions.push([Ve.DRAW_IMAGE,r,o,this.hitDetectionImage_,this.anchorX_,this.anchorY_,this.height_,this.opacity_,this.originX_,this.originY_,this.rotateWithView_,this.rotation_,this.scale_,this.width_,this.declutterImageWithText_]),this.endGeometry(e)}},e.prototype.finish=function(){return this.reverseHitDetectionInstructions(),this.anchorX_=void 0,this.anchorY_=void 0,this.hitDetectionImage_=null,this.image_=null,this.imagePixelRatio_=void 0,this.height_=void 0,this.scale_=void 0,this.opacity_=void 0,this.originX_=void 0,this.originY_=void 0,this.rotateWithView_=void 0,this.rotation_=void 0,this.width_=void 0,t.prototype.finish.call(this)},e.prototype.setImageStyle=function(t,e){var i=t.getAnchor(),n=t.getSize(),r=t.getHitDetectionImage(),o=t.getImage(this.pixelRatio),s=t.getOrigin();this.imagePixelRatio_=t.getPixelRatio(this.pixelRatio),this.anchorX_=i[0],this.anchorY_=i[1],this.hitDetectionImage_=r,this.image_=o,this.height_=n[1],this.opacity_=t.getOpacity(),this.originX_=s[0]*this.imagePixelRatio_,this.originY_=s[1]*this.imagePixelRatio_,this.rotateWithView_=t.getRotateWithView(),this.rotation_=t.getRotation(),this.scale_=t.getScaleArray(),this.width_=n[0],this.declutterImageWithText_=e},e}(Di),Xi=window&&window.__extends||function(){var t=function(e,i){return t=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var i in e)Object.prototype.hasOwnProperty.call(e,i)&&(t[i]=e[i])},t(e,i)};return function(e,i){if("function"!=typeof i&&null!==i)throw new TypeError("Class extends value "+String(i)+" is not a constructor or null");function n(){this.constructor=e}t(e,i),e.prototype=null===i?Object.create(i):(n.prototype=i.prototype,new n)}}(),Yi=function(t){function e(e,i,n,r){return t.call(this,e,i,n,r)||this}return Xi(e,t),e.prototype.drawFlatCoordinates_=function(t,e,i,n){var r=this.coordinates.length,o=this.appendFlatLineCoordinates(t,e,i,n,!1,!1),s=[Ve.MOVE_TO_LINE_TO,r,o];return this.instructions.push(s),this.hitDetectionInstructions.push(s),i},e.prototype.drawLineString=function(t,e){var i=this.state,n=i.strokeStyle,r=i.lineWidth;if(void 0!==n&&void 0!==r){this.updateStrokeStyle(i,this.applyStroke),this.beginGeometry(t,e),this.hitDetectionInstructions.push([Ve.SET_STROKE_STYLE,i.strokeStyle,i.lineWidth,i.lineCap,i.lineJoin,i.miterLimit,$t,0],Be);var o=t.getFlatCoordinates(),s=t.getStride();this.drawFlatCoordinates_(o,0,o.length,s),this.hitDetectionInstructions.push(ze),this.endGeometry(e)}},e.prototype.drawMultiLineString=function(t,e){var i=this.state,n=i.strokeStyle,r=i.lineWidth;if(void 0!==n&&void 0!==r){this.updateStrokeStyle(i,this.applyStroke),this.beginGeometry(t,e),this.hitDetectionInstructions.push([Ve.SET_STROKE_STYLE,i.strokeStyle,i.lineWidth,i.lineCap,i.lineJoin,i.miterLimit,i.lineDash,i.lineDashOffset],Be);for(var o=t.getEnds(),s=t.getFlatCoordinates(),a=t.getStride(),l=0,h=0,u=o.length;h<u;++h)l=this.drawFlatCoordinates_(s,l,o[h],a);this.hitDetectionInstructions.push(ze),this.endGeometry(e)}},e.prototype.finish=function(){var e=this.state;return null!=e.lastStroke&&e.lastStroke!=this.coordinates.length&&this.instructions.push(ze),this.reverseHitDetectionInstructions(),this.state=null,t.prototype.finish.call(this)},e.prototype.applyStroke=function(e){null!=e.lastStroke&&e.lastStroke!=this.coordinates.length&&(this.instructions.push(ze),e.lastStroke=this.coordinates.length),e.lastStroke=0,t.prototype.applyStroke.call(this,e),this.instructions.push(Be)},e}(Di);function zi(t,e,i,n,r,o,s){var a=(i-e)/n;if(a<3){for(;e<i;e+=n)o[s++]=t[e],o[s++]=t[e+1];return s}var l=new Array(a);l[0]=1,l[a-1]=1;for(var h=[e,i-n],u=0;h.length>0;){for(var c=h.pop(),f=h.pop(),p=0,d=t[f],g=t[f+1],_=t[c],y=t[c+1],v=f+n;v<c;v+=n){var m=V(t[v],t[v+1],d,g,_,y);m>p&&(u=v,p=m)}p>r&&(l[(u-e)/n]=1,f+n<u&&h.push(f,u),u+n<c&&h.push(u,c))}for(v=0;v<a;++v)l[v]&&(o[s++]=t[e+v*n],o[s++]=t[e+v*n+1]);return s}function Bi(t,e){return e*Math.round(t/e)}function Ni(t,e,i,n,r,o,s){if(e==i)return s;var a,l,h=Bi(t[e],r),u=Bi(t[e+1],r);e+=n,o[s++]=h,o[s++]=u;do{if(a=Bi(t[e],r),l=Bi(t[e+1],r),(e+=n)==i)return o[s++]=a,o[s++]=l,s}while(a==h&&l==u);for(;e<i;){var c=Bi(t[e],r),f=Bi(t[e+1],r);if(e+=n,c!=a||f!=l){var p=a-h,d=l-u,g=c-h,_=f-u;p*_==d*g&&(p<0&&g<p||p==g||p>0&&g>p)&&(d<0&&_<d||d==_||d>0&&_>d)?(a=c,l=f):(o[s++]=a,o[s++]=l,h=a,u=l,a=c,l=f)}}return o[s++]=a,o[s++]=l,s}function Vi(t,e,i,n,r,o,s,a){for(var l=0,h=i.length;l<h;++l){var u=i[l];s=Ni(t,e,u,n,r,o,s),a.push(s),e=u}return s}var Zi=window&&window.__extends||function(){var t=function(e,i){return t=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var i in e)Object.prototype.hasOwnProperty.call(e,i)&&(t[i]=e[i])},t(e,i)};return function(e,i){if("function"!=typeof i&&null!==i)throw new TypeError("Class extends value "+String(i)+" is not a constructor or null");function n(){this.constructor=e}t(e,i),e.prototype=null===i?Object.create(i):(n.prototype=i.prototype,new n)}}(),Ki=function(t){function e(e,i,n,r){return t.call(this,e,i,n,r)||this}return Zi(e,t),e.prototype.drawFlatCoordinatess_=function(t,e,i,n){var r=this.state,o=void 0!==r.fillStyle,s=void 0!==r.strokeStyle,a=i.length;this.instructions.push(Be),this.hitDetectionInstructions.push(Be);for(var l=0;l<a;++l){var h=i[l],u=this.coordinates.length,c=this.appendFlatLineCoordinates(t,e,h,n,!0,!s),f=[Ve.MOVE_TO_LINE_TO,u,c];this.instructions.push(f),this.hitDetectionInstructions.push(f),s&&(this.instructions.push(Ne),this.hitDetectionInstructions.push(Ne)),e=h}return o&&(this.instructions.push(Ye),this.hitDetectionInstructions.push(Ye)),s&&(this.instructions.push(ze),this.hitDetectionInstructions.push(ze)),e},e.prototype.drawCircle=function(t,e){var i=this.state,n=i.fillStyle,r=i.strokeStyle;if(void 0!==n||void 0!==r){this.setFillStrokeStyles_(),this.beginGeometry(t,e),void 0!==i.fillStyle&&this.hitDetectionInstructions.push([Ve.SET_FILL_STYLE,Jt]),void 0!==i.strokeStyle&&this.hitDetectionInstructions.push([Ve.SET_STROKE_STYLE,i.strokeStyle,i.lineWidth,i.lineCap,i.lineJoin,i.miterLimit,i.lineDash,i.lineDashOffset]);var o=t.getFlatCoordinates(),s=t.getStride(),a=this.coordinates.length;this.appendFlatLineCoordinates(o,0,o.length,s,!1,!1);var l=[Ve.CIRCLE,a];this.instructions.push(Be,l),this.hitDetectionInstructions.push(Be,l),void 0!==i.fillStyle&&(this.instructions.push(Ye),this.hitDetectionInstructions.push(Ye)),void 0!==i.strokeStyle&&(this.instructions.push(ze),this.hitDetectionInstructions.push(ze)),this.endGeometry(e)}},e.prototype.drawPolygon=function(t,e){var i=this.state,n=i.fillStyle,r=i.strokeStyle;if(void 0!==n||void 0!==r){this.setFillStrokeStyles_(),this.beginGeometry(t,e),void 0!==i.fillStyle&&this.hitDetectionInstructions.push([Ve.SET_FILL_STYLE,Jt]),void 0!==i.strokeStyle&&this.hitDetectionInstructions.push([Ve.SET_STROKE_STYLE,i.strokeStyle,i.lineWidth,i.lineCap,i.lineJoin,i.miterLimit,i.lineDash,i.lineDashOffset]);var o=t.getEnds(),s=t.getOrientedFlatCoordinates(),a=t.getStride();this.drawFlatCoordinatess_(s,0,o,a),this.endGeometry(e)}},e.prototype.drawMultiPolygon=function(t,e){var i=this.state,n=i.fillStyle,r=i.strokeStyle;if(void 0!==n||void 0!==r){this.setFillStrokeStyles_(),this.beginGeometry(t,e),void 0!==i.fillStyle&&this.hitDetectionInstructions.push([Ve.SET_FILL_STYLE,Jt]),void 0!==i.strokeStyle&&this.hitDetectionInstructions.push([Ve.SET_STROKE_STYLE,i.strokeStyle,i.lineWidth,i.lineCap,i.lineJoin,i.miterLimit,i.lineDash,i.lineDashOffset]);for(var o=t.getEndss(),s=t.getOrientedFlatCoordinates(),a=t.getStride(),l=0,h=0,u=o.length;h<u;++h)l=this.drawFlatCoordinatess_(s,l,o[h],a);this.endGeometry(e)}},e.prototype.finish=function(){this.reverseHitDetectionInstructions(),this.state=null;var e=this.tolerance;if(0!==e)for(var i=this.coordinates,n=0,r=i.length;n<r;++n)i[n]=Bi(i[n],e);return t.prototype.finish.call(this)},e.prototype.setFillStrokeStyles_=function(){var t=this.state;void 0!==t.fillStyle&&this.updateFillStyle(t,this.createFill),void 0!==t.strokeStyle&&this.updateStrokeStyle(t,this.applyStroke)},e}(Di),Ui=Ki,qi="point",Ji="line";function Hi(t,e,i,n,r){var o,s,a,l,h,u,c,f,p,d=i,g=i,_=0,y=0,v=i;for(o=i;o<n;o+=r){var m=e[o],x=e[o+1];void 0!==l&&(f=m-l,p=x-h,a=Math.sqrt(f*f+p*p),void 0!==u&&(y+=s,Math.acos((u*f+c*p)/(s*a))>t&&(y>_&&(_=y,d=v,g=o),y=0,v=o-r)),s=a,u=f,c=p),l=m,h=x}return(y+=a)>_?[v,o]:[d,g]}var $i,Qi=window&&window.__extends||function(){var t=function(e,i){return t=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var i in e)Object.prototype.hasOwnProperty.call(e,i)&&(t[i]=e[i])},t(e,i)};return function(e,i){if("function"!=typeof i&&null!==i)throw new TypeError("Class extends value "+String(i)+" is not a constructor or null");function n(){this.constructor=e}t(e,i),e.prototype=null===i?Object.create(i):(n.prototype=i.prototype,new n)}}(),tn={left:0,end:0,center:.5,right:1,start:1,top:0,middle:.5,hanging:.2,alphabetic:.8,ideographic:.8,bottom:1},en=function(t){function e(e,i,n,r){var o=t.call(this,e,i,n,r)||this;return o.labels_=null,o.text_="",o.textOffsetX_=0,o.textOffsetY_=0,o.textRotateWithView_=void 0,o.textRotation_=0,o.textFillState_=null,o.fillStates={},o.textStrokeState_=null,o.strokeStates={},o.textState_={},o.textStates={},o.textKey_="",o.fillKey_="",o.strokeKey_="",o.declutterImageWithText_=void 0,o}return Qi(e,t),e.prototype.finish=function(){var e=t.prototype.finish.call(this);return e.textStates=this.textStates,e.fillStates=this.fillStates,e.strokeStates=this.strokeStates,e},e.prototype.drawText=function(t,e){var i=this.textFillState_,n=this.textStrokeState_,r=this.textState_;if(""!==this.text_&&r&&(i||n)){var o=this.coordinates,s=o.length,a=t.getType(),l=null,h=t.getStride();if(r.placement!==Ji||a!=Ce&&a!=Ee&&a!=Oe&&a!=Fe){var u=r.overflow?null:[];switch(a){case Se:case be:l=t.getFlatCoordinates();break;case Ce:l=t.getFlatMidpoint();break;case Pe:l=t.getCenter();break;case Ee:l=t.getFlatMidpoints(),h=2;break;case Oe:l=t.getFlatInteriorPoint(),r.overflow||u.push(l[2]/this.resolution),h=3;break;case Fe:var c=t.getFlatInteriorPoints();l=[];for(S=0,C=c.length;S<C;S+=3)r.overflow||u.push(c[S+2]/this.resolution),l.push(c[S],c[S+1]);if(0===l.length)return;h=2}if((P=this.appendFlatPointCoordinates(l,h))===s)return;if(u&&(P-s)/2!=l.length/h){var f=s/2;u=u.filter((function(t,e){var i=o[2*(f+e)]===l[e*h]&&o[2*(f+e)+1]===l[e*h+1];return i||--f,i}))}this.saveTextStates_(),(r.backgroundFill||r.backgroundStroke)&&(this.setFillStrokeStyle(r.backgroundFill,r.backgroundStroke),r.backgroundFill&&(this.updateFillStyle(this.state,this.createFill),this.hitDetectionInstructions.push(this.createFill(this.state))),r.backgroundStroke&&(this.updateStrokeStyle(this.state,this.applyStroke),this.hitDetectionInstructions.push(this.createStroke(this.state)))),this.beginGeometry(t,e);var p=r.padding;if(p!=ne&&(r.scale[0]<0||r.scale[1]<0)){var d=r.padding[0],g=r.padding[1],_=r.padding[2],y=r.padding[3];r.scale[0]<0&&(g=-g,y=-y),r.scale[1]<0&&(d=-d,_=-_),p=[d,g,_,y]}var v=this.pixelRatio;this.instructions.push([Ve.DRAW_IMAGE,s,P,null,NaN,NaN,NaN,1,0,0,this.textRotateWithView_,this.textRotation_,[1,1],NaN,this.declutterImageWithText_,p==ne?ne:p.map((function(t){return t*v})),!!r.backgroundFill,!!r.backgroundStroke,this.text_,this.textKey_,this.strokeKey_,this.fillKey_,this.textOffsetX_,this.textOffsetY_,u]);var m=1/v;this.hitDetectionInstructions.push([Ve.DRAW_IMAGE,s,P,null,NaN,NaN,NaN,1,0,0,this.textRotateWithView_,this.textRotation_,[m,m],NaN,this.declutterImageWithText_,p,!!r.backgroundFill,!!r.backgroundStroke,this.text_,this.textKey_,this.strokeKey_,this.fillKey_,this.textOffsetX_,this.textOffsetY_,u]),this.endGeometry(e)}else{if(!Pi(this.getBufferedMaxExtent(),t.getExtent()))return;var x=void 0;if(l=t.getFlatCoordinates(),a==Ce)x=[l.length];else if(a==Ee)x=t.getEnds();else if(a==Oe)x=t.getEnds().slice(0,1);else if(a==Fe){var w=t.getEndss();x=[];for(var S=0,C=w.length;S<C;++S)x.push(w[S][0])}this.beginGeometry(t,e);for(var T=r.textAlign,O=0,b=void 0,E=0,F=x.length;E<F;++E){if(null==T){var R=Hi(r.maxAngle,l,O,x[E],h);O=R[0],b=R[1]}else b=x[E];for(var S=O;S<b;S+=h)o.push(l[S],l[S+1]);var P=o.length;O=x[E],this.drawChars_(s,P),s=P}this.endGeometry(e)}}},e.prototype.saveTextStates_=function(){var t=this.textStrokeState_,e=this.textState_,i=this.textFillState_,n=this.strokeKey_;t&&(n in this.strokeStates||(this.strokeStates[n]={strokeStyle:t.strokeStyle,lineCap:t.lineCap,lineDashOffset:t.lineDashOffset,lineWidth:t.lineWidth,lineJoin:t.lineJoin,miterLimit:t.miterLimit,lineDash:t.lineDash}));var r=this.textKey_;r in this.textStates||(this.textStates[r]={font:e.font,textAlign:e.textAlign||ee,textBaseline:e.textBaseline||ie,scale:e.scale});var o=this.fillKey_;i&&(o in this.fillStates||(this.fillStates[o]={fillStyle:i.fillStyle}))},e.prototype.drawChars_=function(t,e){var i=this.textStrokeState_,n=this.textState_,r=this.strokeKey_,o=this.textKey_,s=this.fillKey_;this.saveTextStates_();var a=this.pixelRatio,l=tn[n.textBaseline],h=this.textOffsetY_*a,u=this.text_,c=i?i.lineWidth*Math.abs(n.scale[0])/2:0;this.instructions.push([Ve.DRAW_CHARS,t,e,l,n.overflow,s,n.maxAngle,a,h,r,c*a,u,o,1]),this.hitDetectionInstructions.push([Ve.DRAW_CHARS,t,e,l,n.overflow,s,n.maxAngle,1,h,r,c,u,o,1/a])},e.prototype.setTextStyle=function(t,e){var i,n,r;if(t){var o=t.getFill();o?((n=this.textFillState_)||(n={},this.textFillState_=n),n.fillStyle=Wt(o.getColor()||Jt)):(n=null,this.textFillState_=n);var s=t.getStroke();if(s){(r=this.textStrokeState_)||(r={},this.textStrokeState_=r);var a=s.getLineDash(),l=s.getLineDashOffset(),h=s.getWidth(),u=s.getMiterLimit();r.lineCap=s.getLineCap()||Ht,r.lineDash=a?a.slice():$t,r.lineDashOffset=void 0===l?0:l,r.lineJoin=s.getLineJoin()||Qt,r.lineWidth=void 0===h?1:h,r.miterLimit=void 0===u?10:u,r.strokeStyle=Wt(s.getColor()||te)}else r=null,this.textStrokeState_=r;i=this.textState_;var c=t.getFont()||qt;he(c);var f=t.getScaleArray();i.overflow=t.getOverflow(),i.font=c,i.maxAngle=t.getMaxAngle(),i.placement=t.getPlacement(),i.textAlign=t.getTextAlign(),i.textBaseline=t.getTextBaseline()||ie,i.backgroundFill=t.getBackgroundFill(),i.backgroundStroke=t.getBackgroundStroke(),i.padding=t.getPadding()||ne,i.scale=void 0===f?[1,1]:f;var p=t.getOffsetX(),d=t.getOffsetY(),g=t.getRotateWithView(),_=t.getRotation();this.text_=t.getText()||"",this.textOffsetX_=void 0===p?0:p,this.textOffsetY_=void 0===d?0:d,this.textRotateWithView_=void 0!==g&&g,this.textRotation_=void 0===_?0:_,this.strokeKey_=r?("string"==typeof r.strokeStyle?r.strokeStyle:b(r.strokeStyle))+r.lineCap+r.lineDashOffset+"|"+r.lineWidth+r.lineJoin+r.miterLimit+"["+r.lineDash.join()+"]":"",this.textKey_=i.font+i.scale+(i.textAlign||"?")+(i.textBaseline||"?"),this.fillKey_=n?"string"==typeof n.fillStyle?n.fillStyle:"|"+b(n.fillStyle):""}else this.text_="";this.declutterImageWithText_=e},e}(Di),nn={Circle:Ui,Default:Di,Image:Wi,LineString:Yi,Polygon:Ui,Text:en},rn=function(){function t(t,e,i,n){this.tolerance_=t,this.maxExtent_=e,this.pixelRatio_=n,this.resolution_=i,this.buildersByZIndex_={}}return t.prototype.finish=function(){var t={};for(var e in this.buildersByZIndex_){t[e]=t[e]||{};var i=this.buildersByZIndex_[e];for(var n in i){var r=i[n].finish();t[e][n]=r}}return t},t.prototype.getBuilder=function(t,e){var i=void 0!==t?t.toString():"0",n=this.buildersByZIndex_[i];void 0===n&&(n={},this.buildersByZIndex_[i]=n);var r=n[e];void 0===r&&(r=new(0,nn[e])(this.tolerance_,this.maxExtent_,this.resolution_,this.pixelRatio_),n[e]=r);return r},t}(),on="Circle",sn="Default",an="Image",ln="LineString",hn="Polygon",un="Text",cn=new Array(6);function fn(t){return dn(t,1,0,0,1,0,0)}function pn(t,e){var i=t[0],n=t[1],r=t[2],o=t[3],s=t[4],a=t[5],l=e[0],h=e[1],u=e[2],c=e[3],f=e[4],p=e[5];return t[0]=i*l+r*h,t[1]=n*l+o*h,t[2]=i*u+r*c,t[3]=n*u+o*c,t[4]=i*f+r*p+s,t[5]=n*f+o*p+a,t}function dn(t,e,i,n,r,o,s){return t[0]=e,t[1]=i,t[2]=n,t[3]=r,t[4]=o,t[5]=s,t}function gn(t,e){var i=e[0],n=e[1];return e[0]=t[0]*i+t[2]*n+t[4],e[1]=t[1]*i+t[3]*n+t[5],e}function _n(t,e,i){return pn(t,dn(cn,e,0,0,i,0,0))}function yn(t,e,i,n,r,o,s,a){var l=Math.sin(o),h=Math.cos(o);return t[0]=n*h,t[1]=r*l,t[2]=-n*l,t[3]=r*h,t[4]=s*n*h-a*n*l+e,t[5]=s*r*l+a*r*h+i,t}function vn(t,e,i,n,r,o){for(var s=o||[],a=0,l=e;l<i;l+=n){var h=t[l],u=t[l+1];s[a++]=r[0]*h+r[2]*u+r[4],s[a++]=r[1]*h+r[3]*u+r[5]}return o&&s.length!=a&&(s.length=a),s}function mn(t,e,i,n,r,o,s){for(var a=s||[],l=Math.cos(r),h=Math.sin(r),u=o[0],c=o[1],f=0,p=e;p<i;p+=n){var d=t[p]-u,g=t[p+1]-c;a[f++]=u+d*l-g*h,a[f++]=c+d*h+g*l;for(var _=p+2;_<p+n;++_)a[f++]=t[_]}return s&&a.length!=f&&(a.length=f),a}function xn(t,e,i,n,r,o,s,a,l,h,u,c){var f=t[e],p=t[e+1],d=0,g=0,_=0,y=0;function v(){d=f,g=p,f=t[e+=n],p=t[e+1],y+=_,_=Math.sqrt((f-d)*(f-d)+(p-g)*(p-g))}do{v()}while(e<i-n&&y+_<o);for(var m=0===_?0:(o-y)/_,x=q(d,f,m),w=q(g,p,m),S=e-n,C=y,T=o+a*l(h,r,u);e<i-n&&y+_<T;)v();var O,b=q(d,f,m=0===_?0:(T-y)/_),E=q(g,p,m);if(c){var F=[x,w,b,E];mn(F,0,4,2,c,F,F),O=F[0]>F[2]}else O=x>b;var R,P=Math.PI,I=[],M=S+n===e;if(_=0,y=C,f=t[e=S],p=t[e+1],M){v(),R=Math.atan2(p-g,f-d),O&&(R+=R>0?-P:P);var k=(b+x)/2,L=(E+w)/2;return I[0]=[k,L,(T-o)/2,R,r],I}for(var A=0,j=r.length;A<j;){v();var D=Math.atan2(p-g,f-d);if(O&&(D+=D>0?-P:P),void 0!==R){var G=D-R;if(G+=G>P?-2*P:G<-P?2*P:0,Math.abs(G)>s)return null}R=D;for(var W=A,X=0;A<j;++A){var Y=a*l(h,r[O?j-A-1:A],u);if(e+n<i&&y+_<o+X+Y/2)break;X+=Y}if(A!==W){var z=O?r.substring(j-W,j-A):r.substring(W,A);k=q(d,f,m=0===_?0:(o+X/2-y)/_),L=q(g,p,m);I.push([k,L,X/2,D,z]),o+=X}}return I}function wn(t,e,i,n){for(var r=t[e],o=t[e+1],s=0,a=e+n;a<i;a+=n){var l=t[a],h=t[a+1];s+=Math.sqrt((l-r)*(l-r)+(h-o)*(h-o)),r=l,o=h}return s}var Sn=[1/0,1/0,-1/0,-1/0],Cn=[],Tn=[],On=[],bn=[];function En(t){return t[3].declutterBox}var Fn=new RegExp("["+String.fromCharCode(1425)+"-"+String.fromCharCode(2303)+String.fromCharCode(64285)+"-"+String.fromCharCode(65023)+String.fromCharCode(65136)+"-"+String.fromCharCode(65276)+String.fromCharCode(67584)+"-"+String.fromCharCode(69631)+String.fromCharCode(124928)+"-"+String.fromCharCode(126975)+"]");function Rn(t,e){return"start"!==e&&"end"!==e||Fn.test(t)||(e="start"===e?"left":"right"),tn[e]}var Pn=function(){function t(t,e,i,n){this.overlaps=i,this.pixelRatio=e,this.resolution=t,this.alignFill_,this.instructions=n.instructions,this.coordinates=n.coordinates,this.coordinateCache_={},this.renderedTransform_=[1,0,0,1,0,0],this.hitDetectionInstructions=n.hitDetectionInstructions,this.pixelCoordinates_=null,this.viewRotation_=0,this.fillStates=n.fillStates||{},this.strokeStates=n.strokeStates||{},this.textStates=n.textStates||{},this.widths_={},this.labels_={}}return t.prototype.createLabel=function(t,e,i,n){var r=t+e+i+n;if(this.labels_[r])return this.labels_[r];var o=n?this.strokeStates[n]:null,s=i?this.fillStates[i]:null,a=this.textStates[e],l=this.pixelRatio,h=[a.scale[0]*l,a.scale[1]*l],u=Rn(t,a.textAlign||ee),c=n&&o.lineWidth?o.lineWidth:0,f=t.split("\n"),p=f.length,d=[],g=function(t,e,i){for(var n=e.length,r=0,o=0;o<n;++o){var s=fe(t,e[o]);r=Math.max(r,s),i.push(s)}return r}(a.font,f,d),_=ue(a.font),y=g+c,v=[],m=(y+2)*h[0],x=(_*p+c)*h[1],w={width:m<0?Math.floor(m):Math.ceil(m),height:x<0?Math.floor(x):Math.ceil(x),contextInstructions:v};(1==h[0]&&1==h[1]||v.push("scale",h),v.push("font",a.font),n)&&(v.push("strokeStyle",o.strokeStyle),v.push("lineWidth",c),v.push("lineCap",o.lineCap),v.push("lineJoin",o.lineJoin),v.push("miterLimit",o.miterLimit),(Yt?OffscreenCanvasRenderingContext2D:CanvasRenderingContext2D).prototype.setLineDash&&(v.push("setLineDash",[o.lineDash]),v.push("lineDashOffset",o.lineDashOffset)));i&&v.push("fillStyle",s.fillStyle),v.push("textBaseline","middle"),v.push("textAlign","center");var S,C=.5-u,T=u*y+C*c;if(n)for(S=0;S<p;++S)v.push("strokeText",[f[S],T+C*d[S],.5*(c+_)+S*_]);if(i)for(S=0;S<p;++S)v.push("fillText",[f[S],T+C*d[S],.5*(c+_)+S*_]);return this.labels_[r]=w,w},t.prototype.replayTextBackground_=function(t,e,i,n,r,o,s){t.beginPath(),t.moveTo.apply(t,e),t.lineTo.apply(t,i),t.lineTo.apply(t,n),t.lineTo.apply(t,r),t.lineTo.apply(t,e),o&&(this.alignFill_=o[2],this.fill_(t)),s&&(this.setStrokeStyle_(t,s),t.stroke())},t.prototype.calculateImageOrLabelDimensions_=function(t,e,i,n,r,o,s,a,l,h,u,c,f,p,d,g){var _,y=i-(s*=c[0]),v=n-(a*=c[1]),m=r+l>t?t-l:r,x=o+h>e?e-h:o,w=p[3]+m*c[0]+p[1],S=p[0]+x*c[1]+p[2],C=y-p[3],T=v-p[0];return(d||0!==u)&&(Cn[0]=C,bn[0]=C,Cn[1]=T,Tn[1]=T,Tn[0]=C+w,On[0]=Tn[0],On[1]=T+S,bn[1]=On[1]),0!==u?(gn(_=yn([1,0,0,1,0,0],i,n,1,1,u,-i,-n),Cn),gn(_,Tn),gn(_,On),gn(_,bn),ci(Math.min(Cn[0],Tn[0],On[0],bn[0]),Math.min(Cn[1],Tn[1],On[1],bn[1]),Math.max(Cn[0],Tn[0],On[0],bn[0]),Math.max(Cn[1],Tn[1],On[1],bn[1]),Sn)):ci(Math.min(C,C+w),Math.min(T,T+S),Math.max(C,C+w),Math.max(T,T+S),Sn),f&&(y=Math.round(y),v=Math.round(v)),{drawImageX:y,drawImageY:v,drawImageW:m,drawImageH:x,originX:l,originY:h,declutterBox:{minX:Sn[0],minY:Sn[1],maxX:Sn[2],maxY:Sn[3],value:g},canvasTransform:_,scale:c}},t.prototype.replayImageOrLabel_=function(t,e,i,n,r,o,s){var a=!(!o&&!s),l=n.declutterBox,h=t.canvas,u=s?s[2]*n.scale[0]/2:0;return l.minX-u<=h.width/e&&l.maxX+u>=0&&l.minY-u<=h.height/e&&l.maxY+u>=0&&(a&&this.replayTextBackground_(t,Cn,Tn,On,bn,o,s),de(t,n.canvasTransform,r,i,n.originX,n.originY,n.drawImageW,n.drawImageH,n.drawImageX,n.drawImageY,n.scale)),!0},t.prototype.fill_=function(t){if(this.alignFill_){var e=gn(this.renderedTransform_,[0,0]),i=512*this.pixelRatio;t.save(),t.translate(e[0]%i,e[1]%i),t.rotate(this.viewRotation_)}t.fill(),this.alignFill_&&t.restore()},t.prototype.setStrokeStyle_=function(t,e){t.strokeStyle=e[1],t.lineWidth=e[2],t.lineCap=e[3],t.lineJoin=e[4],t.miterLimit=e[5],t.setLineDash&&(t.lineDashOffset=e[7],t.setLineDash(e[6]))},t.prototype.drawLabelWithPointPlacement_=function(t,e,i,n){var r=this.textStates[e],o=this.createLabel(t,e,n,i),s=this.strokeStates[i],a=this.pixelRatio,l=Rn(t,r.textAlign||ee),h=tn[r.textBaseline||ie],u=s&&s.lineWidth?s.lineWidth:0;return{label:o,anchorX:l*(o.width/a-2*r.scale[0])+2*(.5-l)*u,anchorY:h*o.height/a+2*(.5-h)*u}},t.prototype.execute_=function(t,e,i,n,r,o,s,l){var h,u,c;this.pixelCoordinates_&&a(i,this.renderedTransform_)?h=this.pixelCoordinates_:(this.pixelCoordinates_||(this.pixelCoordinates_=[]),h=vn(this.coordinates,0,this.coordinates.length,2,i,this.pixelCoordinates_),u=this.renderedTransform_,c=i,u[0]=c[0],u[1]=c[1],u[2]=c[2],u[3]=c[3],u[4]=c[4],u[5]=c[5]);for(var f,p,d,g,_,y,v,m,x,w,S,C,T,O,b,E,F=0,R=n.length,P=0,I=0,M=0,k=null,L=null,A=this.coordinateCache_,j=this.viewRotation_,D=Math.round(1e12*Math.atan2(-i[1],i[0]))/1e12,G={context:t,pixelRatio:this.pixelRatio,resolution:this.resolution,rotation:j},W=this.instructions!=n||this.overlaps?0:200;F<R;){var X=n[F];switch(X[0]){case Ve.BEGIN_GEOMETRY:T=X[1],E=X[3],T.getGeometry()?void 0===s||Pi(s,E.getExtent())?++F:F=X[2]+1:F=X[2];break;case Ve.BEGIN_PATH:I>W&&(this.fill_(t),I=0),M>W&&(t.stroke(),M=0),I||M||(t.beginPath(),g=NaN,_=NaN),++F;break;case Ve.CIRCLE:var Y=h[P=X[1]],z=h[P+1],B=h[P+2]-Y,N=h[P+3]-z,V=Math.sqrt(B*B+N*N);t.moveTo(Y+V,z),t.arc(Y,z,V,0,2*Math.PI,!0),++F;break;case Ve.CLOSE_PATH:t.closePath(),++F;break;case Ve.CUSTOM:P=X[1],f=X[2];var Z=X[3],K=X[4],U=6==X.length?X[5]:void 0;G.geometry=Z,G.feature=T,F in A||(A[F]=[]);var q=A[F];U?U(h,P,f,2,q):(q[0]=h[P],q[1]=h[P+1],q.length=2),K(q,G),++F;break;case Ve.DRAW_IMAGE:P=X[1],f=X[2],m=X[3],p=X[4],d=X[5];var J=X[6],H=X[7],$=X[8],Q=X[9],tt=X[10],et=X[11],it=X[12],nt=X[13],rt=X[14];if(!m&&X.length>=19){x=X[18],w=X[19],S=X[20],C=X[21];var ot=this.drawLabelWithPointPlacement_(x,w,S,C);m=ot.label,X[3]=m;var st=X[22];p=(ot.anchorX-st)*this.pixelRatio,X[4]=p;var at=X[23];d=(ot.anchorY-at)*this.pixelRatio,X[5]=d,J=m.height,X[6]=J,nt=m.width,X[13]=nt}var lt=void 0;X.length>24&&(lt=X[24]);var ht=void 0,ut=void 0,ct=void 0;X.length>16?(ht=X[15],ut=X[16],ct=X[17]):(ht=ne,ut=!1,ct=!1),tt&&D?et+=j:tt||D||(et-=j);for(var ft=0;P<f;P+=2)if(!(lt&&lt[ft++]<nt/this.pixelRatio)){var pt=[t,e,m,Xt=this.calculateImageOrLabelDimensions_(m.width,m.height,h[P],h[P+1],nt,J,p,d,$,Q,et,it,r,ht,ut||ct,T),H,ut?k:null,ct?L:null],dt=void 0,gt=void 0;if(l&&rt){var _t=f-P;if(!rt[_t]){rt[_t]=pt;continue}if(dt=rt[_t],delete rt[_t],gt=En(dt),l.collides(gt))continue}l&&l.collides(Xt.declutterBox)||(dt&&(l&&l.insert(gt),this.replayImageOrLabel_.apply(this,dt)),l&&l.insert(Xt.declutterBox),this.replayImageOrLabel_.apply(this,pt))}++F;break;case Ve.DRAW_CHARS:var yt=X[1],vt=X[2],mt=X[3],xt=X[4];C=X[5];var wt=X[6],St=X[7],Ct=X[8];S=X[9];var Tt=X[10];x=X[11],w=X[12];var Ot=[X[13],X[13]],bt=this.textStates[w],Et=bt.font,Ft=[bt.scale[0]*St,bt.scale[1]*St],Rt=void 0;Et in this.widths_?Rt=this.widths_[Et]:(Rt={},this.widths_[Et]=Rt);var Pt=wn(h,yt,vt,2),It=Math.abs(Ft[0])*pe(Et,x,Rt);if(xt||It<=Pt){var Mt=this.textStates[w].textAlign,kt=xn(h,yt,vt,2,x,(Pt-It)*tn[Mt],wt,Math.abs(Ft[0]),pe,Et,Rt,D?0:this.viewRotation_);t:if(kt){var Lt=[],At=void 0,jt=void 0,Dt=void 0,Gt=void 0,Wt=void 0;if(S)for(At=0,jt=kt.length;At<jt;++At){Dt=(Wt=kt[At])[4],Gt=this.createLabel(Dt,w,"",S),p=Wt[2]+(Ft[0]<0?-Tt:Tt),d=mt*Gt.height+2*(.5-mt)*Tt*Ft[1]/Ft[0]-Ct;var Xt=this.calculateImageOrLabelDimensions_(Gt.width,Gt.height,Wt[0],Wt[1],Gt.width,Gt.height,p,d,0,0,Wt[3],Ot,!1,ne,!1,T);if(l&&l.collides(Xt.declutterBox))break t;Lt.push([t,e,Gt,Xt,1,null,null])}if(C)for(At=0,jt=kt.length;At<jt;++At){Dt=(Wt=kt[At])[4],Gt=this.createLabel(Dt,w,C,""),p=Wt[2],d=mt*Gt.height-Ct;Xt=this.calculateImageOrLabelDimensions_(Gt.width,Gt.height,Wt[0],Wt[1],Gt.width,Gt.height,p,d,0,0,Wt[3],Ot,!1,ne,!1,T);if(l&&l.collides(Xt.declutterBox))break t;Lt.push([t,e,Gt,Xt,1,null,null])}l&&l.load(Lt.map(En));for(var 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o.drawImage(this.image_,this.imageOriginX_,this.imageOriginY_,this.imageWidth_,this.imageHeight_,c,f,this.imageWidth_,this.imageHeight_)}1!=this.imageOpacity_&&(o.globalAlpha=a)}},e.prototype.drawText_=function(t,e,i,n){if(this.textState_&&""!==this.text_){this.textFillState_&&this.setContextFillState_(this.textFillState_),this.textStrokeState_&&this.setContextStrokeState_(this.textStrokeState_),this.setContextTextState_(this.textState_);var r=vn(t,e,i,n,this.transform_,this.pixelCoordinates_),o=this.context_,s=this.textRotation_;for(this.textRotateWithView_&&(s+=this.viewRotation_);e<i;e+=n){var a=r[e]+this.textOffsetX_,l=r[e+1]+this.textOffsetY_;if(0!==s||1!=this.textScale_[0]||1!=this.textScale_[1]){var h=yn(this.tmpLocalTransform_,a,l,1,1,s,-a,-l);o.setTransform.apply(o,h),o.translate(a,l),o.scale(this.textScale_[0],this.textScale_[1]),this.textStrokeState_&&o.strokeText(this.text_,0,0),this.textFillState_&&o.fillText(this.text_,0,0),o.setTransform(1,0,0,1,0,0)}else this.textStrokeState_&&o.strokeText(this.text_,a,l),this.textFillState_&&o.fillText(this.text_,a,l)}}},e.prototype.moveToLineTo_=function(t,e,i,n,r){var o=this.context_,s=vn(t,e,i,n,this.transform_,this.pixelCoordinates_);o.moveTo(s[0],s[1]);var a=s.length;r&&(a-=2);for(var l=2;l<a;l+=2)o.lineTo(s[l],s[l+1]);return r&&o.closePath(),i},e.prototype.drawRings_=function(t,e,i,n){for(var r=0,o=i.length;r<o;++r)e=this.moveToLineTo_(t,e,i[r],n,!0);return e},e.prototype.drawCircle=function(t){if(Pi(this.extent_,t.getExtent())){if(this.fillState_||this.strokeState_){this.fillState_&&this.setContextFillState_(this.fillState_),this.strokeState_&&this.setContextStrokeState_(this.strokeState_);var e=function(t,e,i){var n=t.getFlatCoordinates();if(n){var r=t.getStride();return vn(n,0,n.length,r,e,i)}return null}(t,this.transform_,this.pixelCoordinates_),i=e[2]-e[0],n=e[3]-e[1],r=Math.sqrt(i*i+n*n),o=this.context_;o.beginPath(),o.arc(e[0],e[1],r,0,2*Math.PI),this.fillState_&&o.fill(),this.strokeState_&&o.stroke()}""!==this.text_&&this.drawText_(t.getCenter(),0,2,2)}},e.prototype.setStyle=function(t){this.setFillStrokeStyle(t.getFill(),t.getStroke()),this.setImageStyle(t.getImage()),this.setTextStyle(t.getText())},e.prototype.setTransform=function(t){this.transform_=t},e.prototype.drawGeometry=function(t){switch(t.getType()){case Se:this.drawPoint(t);break;case Ce:this.drawLineString(t);break;case Oe:this.drawPolygon(t);break;case be:this.drawMultiPoint(t);break;case Ee:this.drawMultiLineString(t);break;case Fe:this.drawMultiPolygon(t);break;case Re:this.drawGeometryCollection(t);break;case Pe:this.drawCircle(t)}},e.prototype.drawFeature=function(t,e){var i=e.getGeometryFunction()(t);i&&Pi(this.extent_,i.getExtent())&&(this.setStyle(e),this.drawGeometry(i))},e.prototype.drawGeometryCollection=function(t){for(var e=t.getGeometriesArray(),i=0,n=e.length;i<n;++i)this.drawGeometry(e[i])},e.prototype.drawPoint=function(t){this.squaredTolerance_&&(t=t.simplifyTransformed(this.squaredTolerance_,this.userTransform_));var e=t.getFlatCoordinates(),i=t.getStride();this.image_&&this.drawImages_(e,0,e.length,i),""!==this.text_&&this.drawText_(e,0,e.length,i)},e.prototype.drawMultiPoint=function(t){this.squaredTolerance_&&(t=t.simplifyTransformed(this.squaredTolerance_,this.userTransform_));var e=t.getFlatCoordinates(),i=t.getStride();this.image_&&this.drawImages_(e,0,e.length,i),""!==this.text_&&this.drawText_(e,0,e.length,i)},e.prototype.drawLineString=function(t){if(this.squaredTolerance_&&(t=t.simplifyTransformed(this.squaredTolerance_,this.userTransform_)),Pi(this.extent_,t.getExtent())){if(this.strokeState_){this.setContextStrokeState_(this.strokeState_);var e=this.context_,i=t.getFlatCoordinates();e.beginPath(),this.moveToLineTo_(i,0,i.length,t.getStride(),!1),e.stroke()}if(""!==this.text_){var n=t.getFlatMidpoint();this.drawText_(n,0,2,2)}}},e.prototype.drawMultiLineString=function(t){this.squaredTolerance_&&(t=t.simplifyTransformed(this.squaredTolerance_,this.userTransform_));var e=t.getExtent();if(Pi(this.extent_,e)){if(this.strokeState_){this.setContextStrokeState_(this.strokeState_);var i=this.context_,n=t.getFlatCoordinates(),r=0,o=t.getEnds(),s=t.getStride();i.beginPath();for(var 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t.getImage(this.getLayer())},e.prototype.prepareFrame=function(e){var i=this.getLayer().getRevision();return this.renderedLayerRevision_!=i&&(this.renderedTiles.length=0),this.renderedLayerRevision_=i,t.prototype.prepareFrame.call(this,e)},e.prototype.updateExecutorGroup_=function(t,e,i){var n=this.getLayer(),r=n.getRevision(),o=n.getRenderOrder()||null,s=t.wantedResolution,a=t.getReplayState(n);if(a.dirty||a.renderedResolution!==s||a.renderedRevision!=r||a.renderedRenderOrder!=o){var l=n.getSource(),h=n.getDeclutter(),u=l.getTileGrid(),c=l.getTileGridForProjection(i).getTileCoordExtent(t.wrappedTileCoord),f=l.getSourceTiles(e,i,t),p=b(n);delete t.hitDetectionImageData[p],t.executorGroups[p]=[],h&&(t.declutterExecutorGroups[p]=[]);for(var d=function(i,r){var d=f[i];if(d.getState()!=Un)return"continue";var _=d.tileCoord,y=u.getTileCoordExtent(_),v=bi(c,y),m=ri(v,n.getRenderBuffer()*s,g.tmpExtent),x=gi(y,v)?null:m;a.dirty=!1;var w=new rn(0,m,s,e),S=h?new rn(0,v,s,e):void 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n,o=this.getLayer(),s=b(o),a=o.getSource(),l=this.renderedProjection,h=l.getExtent(),u=this.renderedResolution,c=a.getTileGridForProjection(l),f=gn(this.renderedPixelToCoordinateTransform_,t.slice()),p=c.getTileCoordForCoordAndResolution(f,u),d=0,g=this.renderedTiles.length;d<g;++d)if(p.toString()===this.renderedTiles[d].tileCoord.toString()){if((n=this.renderedTiles[d]).getState()===Un){var _=c.getTileCoordExtent(n.tileCoord);a.getWrapX()&&l.canWrapX()&&!ai(h,_)&&Cr(f,l);break}n=void 0}if(!n||n.loadingSourceTiles>0)e([]);else{var y=Ei(c.getTileCoordExtent(n.wrappedTileCoord)),v=[(f[0]-y[0])/u,(y[1]-f[1])/u],m=n.getSourceTiles().reduce((function(t,e){return t.concat(e.getFeatures())}),[]),x=n.hitDetectionImageData[s];if(!x&&!this.animatingOrInteracting_){var w=Rt(c.getTileSize(c.getZForResolution(u))),S=this.renderedRotation_;x=function(t,e,i,n,o,s,a){var l=Bt(t[0]*bo,t[1]*bo);l.imageSmoothingEnabled=!1;for(var h=l.canvas,u=new ro(l,bo,o,null,a),c=i.length,f=Math.floor(16777215/c),p={},d=1;d<=c;++d){var g=i[d-1],_=g.getStyleFunction()||n;if(n){var y=_(g,s);if(y){Array.isArray(y)||(y=[y]);for(var v="#"+("000000"+(d*f).toString(16)).slice(-6),m=0,x=y.length;m<x;++m){var w=y[m],S=w.getGeometryFunction()(g);if(S&&Pi(o,S.getExtent())){var C=w.clone(),T=C.getFill();T&&T.setColor(v);var O=C.getStroke();O&&(O.setColor(v),O.setLineDash(null)),C.setText(void 0);var b=w.getImage();if(b&&0!==b.getOpacity()){var E=b.getImageSize();if(!E)continue;var F=Bt(E[0],E[1],void 0,{alpha:!1}),R=F.canvas;F.fillStyle=v,F.fillRect(0,0,R.width,R.height),C.setImage(new Co({img:R,imgSize:E,anchor:b.getAnchor(),anchorXUnits:so,anchorYUnits:so,offset:b.getOrigin(),opacity:1,size:b.getSize(),scale:b.getScale(),rotation:b.getRotation(),rotateWithView:b.getRotateWithView()}))}var P=C.getZIndex()||0;(k=p[P])||(k={},p[P]=k,k[Oe]=[],k[Pe]=[],k[Ce]=[],k[Se]=[]),k[S.getType().replace("Multi","")].push(S,C)}}}}}for(var I=Object.keys(p).map(Number).sort(r),M=(d=0,I.length);d<M;++d){var k=p[I[d]];for(var L in k){var A=k[L];for(m=0,x=A.length;m<x;m+=2){u.setStyle(A[m+1]);for(var j=0,D=e.length;j<D;++j)u.setTransform(e[j]),u.drawGeometry(A[m])}}}return l.getImageData(0,0,h.width,h.height)}(w,[this.getRenderTransform(c.getTileCoordCenter(n.wrappedTileCoord),u,0,bo,w[0]*bo,w[1]*bo,0)],m,o.getStyleFunction(),c.getTileCoordExtent(n.wrappedTileCoord),n.getReplayState(o).renderedResolution,S),n.hitDetectionImageData[s]=x}e(function(t,e,i){var n=[];if(i){var r=Math.floor(Math.round(t[0])*bo),o=Math.floor(Math.round(t[1])*bo),s=4*(z(r,0,i.width-1)+z(o,0,i.height-1)*i.width),a=i.data[s],l=i.data[s+1],h=i.data[s+2]+256*(l+256*a),u=Math.floor(16777215/e.length);h&&h%u==0&&n.push(e[h/u-1])}return n}(v,m,x))}}.bind(this))},e.prototype.handleFontsChanged=function(){var t=this.getLayer();t.getVisible()&&void 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pn(_n(this.inversePixelTransform.slice(),1/i,1/i),this.getRenderTransform(r,o,s,i,l,h,p))},e.prototype.renderFrame=function(e,i){var n=e.viewHints,r=!(n[zr]||n[Br]);t.prototype.renderFrame.call(this,e,i),this.renderedPixelToCoordinateTransform_=e.pixelToCoordinateTransform.slice(),this.renderedRotation_=e.viewState.rotation;var o=this.getLayer(),s=o.getRenderMode(),a=this.context,l=a.globalAlpha;a.globalAlpha=o.getOpacity();for(var h=ko[s],u=e.viewState.rotation,c=this.renderedTiles,f=[],p=[],d=c.length-1;d>=0;--d)for(var g=c[d],_=this.getTileRenderTransform(g,e),y=g.executorGroups[b(o)],v=!1,m=0,x=y.length;m<x;++m){var w=y[m];if(w.hasExecutors(h)){var S=g.tileCoord[0],C=void 0;if(!v&&(C=w.getClipCoords(_))){a.save();for(var T=0,O=f.length;T<O;++T){var 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this.origin_?this.origin_:this.origins_[t]},t.prototype.getResolution=function(t){return this.resolutions_[t]},t.prototype.getResolutions=function(){return this.resolutions_},t.prototype.getTileCoordChildTileRange=function(t,e,i){if(t[0]<this.maxZoom){if(2===this.zoomFactor_){var n=2*t[1],r=2*t[2];return Nn(n,n+1,r,r+1,e)}var o=this.getTileCoordExtent(t,i||this.tmpExtent_);return this.getTileRangeForExtentAndZ(o,t[0]+1,e)}return null},t.prototype.getTileRangeForTileCoordAndZ=function(t,e,i){if(e>this.maxZoom||e<this.minZoom)return null;var n=t[0],r=t[1],o=t[2];if(e===n)return Nn(r,o,r,o,i);if(this.zoomFactor_){var s=Math.pow(this.zoomFactor_,e-n),a=Math.floor(r*s),l=Math.floor(o*s);return e<n?Nn(a,a,l,l,i):Nn(a,Math.floor(s*(r+1))-1,l,Math.floor(s*(o+1))-1,i)}var h=this.getTileCoordExtent(t,this.tmpExtent_);return this.getTileRangeForExtentAndZ(h,e,i)},t.prototype.getTileRangeExtent=function(t,e,i){var 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c}([[u-=b,c-=E,0,0,S-m],[_-=b,y-=E,0,0,T-m],[0,0,u,c,C-w],[0,0,_,y,O-w]]);if(F){if(p.save(),p.beginPath(),function(){if(void 0===ks){var t=document.createElement("canvas").getContext("2d");t.globalCompositeOperation="lighter",t.fillStyle="rgba(210, 0, 0, 0.75)",Ds(t,4,5,4,0),Ds(t,4,5,0,5);var e=t.getImageData(0,0,3,3).data;ks=Gs(e,0)||Gs(e,4)||Gs(e,8)}return ks}()||f===js){p.moveTo(S,C);for(var R=m-S,P=w-C,I=0;I<4;I++)p.lineTo(S+d((I+1)*R/4),C+d(I*P/3)),3!=I&&p.lineTo(S+d((I+1)*R/4),C+d((I+1)*P/3));p.lineTo(T,O)}else p.moveTo(S,C),p.lineTo(m,w),p.lineTo(T,O);p.clip(),p.transform(F[0],F[2],F[1],F[3],m,w),p.translate(g[0]-b,g[3]-E),p.scale(n/i,-n/i),p.drawImage(v.canvas,0,0),p.restore()}})),c&&(p.save(),p.globalCompositeOperation="source-over",p.strokeStyle="black",p.lineWidth=1,a.getTriangles().forEach((function(t,e,i){var 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i=t.call(this,{attributions:e.attributions,cacheSize:e.cacheSize,opaque:e.opaque,projection:e.projection,state:e.state,tileGrid:e.tileGrid,tileLoadFunction:e.tileLoadFunction?e.tileLoadFunction:Vs,tilePixelRatio:e.tilePixelRatio,tileUrlFunction:e.tileUrlFunction,url:e.url,urls:e.urls,wrapX:e.wrapX,transition:e.transition,key:e.key,attributionsCollapsible:e.attributionsCollapsible,zDirection:e.zDirection})||this;return i.crossOrigin=void 0!==e.crossOrigin?e.crossOrigin:null,i.tileClass=void 0!==e.tileClass?e.tileClass:Ls,i.tileCacheForProjection={},i.tileGridForProjection={},i.reprojectionErrorThreshold_=e.reprojectionErrorThreshold,i.contextOptions_=!1===e.imageSmoothing?js:void 0,i.renderReprojectionEdges_=!1,i}return Bs(e,t),e.prototype.canExpireCache=function(){if(this.tileCache.canExpireCache())return!0;for(var t in this.tileCacheForProjection)if(this.tileCacheForProjection[t].canExpireCache())return!0;return!1},e.prototype.expireCache=function(t,e){var i=this.getTileCacheForProjection(t);for(var n in this.tileCache.expireCache(this.tileCache==i?e:{}),this.tileCacheForProjection){var r=this.tileCacheForProjection[n];r.expireCache(r==i?e:{})}},e.prototype.getContextOptions=function(){return this.contextOptions_},e.prototype.getGutterForProjection=function(t){return this.getProjection()&&t&&!Ir(this.getProjection(),t)?0:this.getGutter()},e.prototype.getGutter=function(){return 0},e.prototype.getKey=function(){return t.prototype.getKey.call(this)+(this.contextOptions_?"\n"+JSON.stringify(this.contextOptions_):"")},e.prototype.getOpaque=function(e){return!(this.getProjection()&&e&&!Ir(this.getProjection(),e))&&t.prototype.getOpaque.call(this,e)},e.prototype.getTileGridForProjection=function(t){var e=this.getProjection();if(!this.tileGrid||e&&!Ir(e,t)){var i=b(t);return i in this.tileGridForProjection||(this.tileGridForProjection[i]=hs(t)),this.tileGridForProjection[i]}return this.tileGrid},e.prototype.getTileCacheForProjection=function(t){var e=this.getProjection();if(!e||Ir(e,t))return this.tileCache;var i=b(t);return i in this.tileCacheForProjection||(this.tileCacheForProjection[i]=new Qo(this.tileCache.highWaterMark)),this.tileCacheForProjection[i]},e.prototype.createTile_=function(t,e,i,n,r,o){var s=[t,e,i],a=this.getTileCoordForTileUrlFunction(s,r),l=a?this.tileUrlFunction(a,n,r):void 0,h=new this.tileClass(s,void 0!==l?Zn:Jn,void 0!==l?l:"",this.crossOrigin,this.tileLoadFunction,this.tileOptions);return h.key=o,h.addEventListener(g,this.handleTileChange.bind(this)),h},e.prototype.getTile=function(t,e,i,n,r){var o=this.getProjection();if(o&&r&&!Ir(o,r)){var s=this.getTileCacheForProjection(r),a=[t,e,i],l=void 0,h=qo(a);s.containsKey(h)&&(l=s.get(h));var u=this.getKey();if(l&&l.key==u)return l;var c=this.getTileGridForProjection(o),f=this.getTileGridForProjection(r),p=this.getTileCoordForTileUrlFunction(a,r),d=new 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diff --git a/package.json b/package.json
index 3147d1e..b20e677 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openlayers-indoorequal",
-  "version": "0.0.4",
+  "version": "0.0.5",
   "description": "Integrate indoor= into your OpenLayers map.",
   "repository": "https://github.com/indoorequal/openlayers-indoorequal",
   "author": "François de Metz",