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las-tests.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="xeokit - SDK for Browser-Based 3D BIM Visualization">
<meta name="author" content="Lindsay Kay">
<meta name="keywords" content="BIM,IFC,WebGL,JavaScript,Browser,BCF,Web,xeolabs,3D,3D Viewer,Lindsay Kay,xeokit,MedViz,ArchViz,Open Source,Browser,Viewer">
<title>xeokit - 3D Web Programming Toolkit for BIM and Engineering Visualization</title>
<link href="./vendor/bootstrap/css/bootstrap.min.css" rel="stylesheet">
<link href="./css/business-frontpage.css" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Rubik" rel="stylesheet">
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
<!-- Bootstrap core JavaScript -->
<script src="./vendor/jquery/jquery.min.js"></script>
<script src="./vendor/bootstrap/js/bootstrap.bundle.min.js"></script>
<title></title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.1.5/jszip.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/prism-themes/1.9.0/prism-atom-dark.min.css">
</head>
<body data-spy="scroll" data-target=".navbar" data-offset="50">
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/prism.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.24.1/components/prism-json.min.js"></script>
<script>
function getPortionBeforeLastSlash(filePath) {
const lastSlashIndex = filePath.lastIndexOf('/');
if (lastSlashIndex !== -1) {
return filePath.substring(0, lastSlashIndex);
}
}
function createZip(files, zipFileName) {
const zip = new JSZip();
var folder = zip.folder("cxConverter1_" + zipFileName);
const promises = [];
function addFileToZip(url, fileName) {
return fetch(url)
.then(response => response.blob())
.then(blob => folder.file(fileName, blob));
}
files.forEach(function (url, index) {
promises.push(addFileToZip(url, url.substring(url.lastIndexOf('/') + 1)));
});
Promise.all(promises)
.then(function () {
return zip.generateAsync({type: "blob"});
})
.then(function (blob) {
const link = document.createElement('a');
link.href = URL.createObjectURL(blob);
link.download = `${zipFileName}.zip`;
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
});
}
function createModelZip(manifestPath, batchId, modelId) {
const modelPath = getPortionBeforeLastSlash(manifestPath);
fetch(manifestPath)
.then(response => {
if (!response.ok) {
throw new Error('Network response was not ok');
}
return response.json();
})
.then(data => {
const filesURLs = [manifestPath];
if (data.xktFiles)
for (let i = 0, len = data.xktFiles.length; i < len; i++) {
filesURLs.push(`${modelPath}/${data.xktFiles[i]}`);
}
createZip(filesURLs, `${batchId}_${modelId}`);
})
.catch(error => {
console.error('Error during fetch:', error);
});
}
function createProjectZip(manifestPath, batchId, modelId) {
const modelPath = getPortionBeforeLastSlash(manifestPath);
fetch(manifestPath)
.then(response => {
if (!response.ok) {
throw new Error('Network response was not ok');
}
return response.json();
})
.then(data => {
const filesURLs = [manifestPath];
if (data.xktFiles)
for (let i = 0, len = data.xktFiles.length; i < len; i++) {
filesURLs.push(`${modelPath}/${data.xktFiles[i]}`);
}
createZip(filesURLs, `${batchId}_${modelId}`);
})
.catch(error => {
console.error('Error during fetch:', error);
});
}
function storeScrollPosition() {
sessionStorage.setItem('scrollPosition', window.scrollY);
}
function getStoredScrollPosition() {
return parseInt(sessionStorage.getItem('scrollPosition')) || 0;
}
window.addEventListener('load', function () {
window.scrollTo(0, getStoredScrollPosition());
});
window.addEventListener('beforeunload', storeScrollPosition);
fetch("./convertedModels/las/convert2xkt.conf.json")
.then(response => response.text())
.then(code => {
// Get the code container element
const codeContainer = document.getElementById("convert2xkt.conf");
// Set the innerHTML with the syntax-highlighted code
codeContainer.innerHTML = `<pre><code style="font-size: 15px;" class="language-json">${Prism.highlight(code, Prism.languages.json, 'json')}</code></pre>`;
})
.catch(error => console.error('Error loading file:', error));
</script>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top ">
<span style="color: #ffffff;"><a class="navbar-home" href="http://xeolabs.com">xeolabs</a>/<a class="navbar-parent" href="https://xeokit.io">xeokit SDK</a>/<a class="navbar-parent" href="./index.html">Model Conversion</a>/<a class="navbar-brand" href="./tests.html">LAS Conversion Tests</a></span>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="./index.html?foo=0">Home</a>
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<div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdownLearn">
<a class="dropdown-item" href="https://xeokit.io/demo.html?projectId=RevitSamples&tab=models">Revit Sample LAS Model</a>
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<a class="dropdown-item" href="https://xeokit.io/demo.html?projectId=MAP&tab=objects">Full-Precision LAS Model</a>
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<a class="dropdown-item" href="https://www.notion.so/xeokit/xeokit-Documentation-4598591fcedb4889bf8896750651f74e">Documentation</a>
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</ul>
</div>
</nav>
<header class="bg-black home-header-las bg-black">
<div class="container h-100">
<!-- <div class="row h-100 align-items-center">-->
<!-- <div class="col-lg-12">-->
<!-- <h1 class="text-white mt-5 mb-2">LAS Conversion Tests</h1>-->
<!-- <p class="lead mb-5 text-white">Check the health of our LAS->XKT file conversion tool</p>-->
<!-- </div>-->
<!-- </div>-->
</div>
</header>
<section id="intro" class="main-section alabaster">
<div class="container">
<div class="row testimonial-row center-text">
<div class="col-lg-12">
<h1>xeokit LAS Conversion Tests</h1>
</div>
</div>
<div class="row mb-5">
<div class="col-sm-12 text-center">
<a class="btn btn-lg btn-outline-primary border-2" href="./gltf-tests.html">See also: glTF Conversion Tests >></a>
<a class="btn btn-lg btn-outline-primary border-2" href="./ifc-tests.html">See also: IFC Conversion Tests >></a>
</div>
</div>
<!-- <div class="row mb-5">-->
<!-- <div class="col-5 mx-auto center-text">-->
<!-- <img class="img-fluid mx-auto d-block" src="./img/xeokit-viewer-jitterThumb.png">-->
<!-- </div>-->
<!-- </div>-->
<div class="row">
<div class="col-12 mx-auto left-text">
<p>The xeokit SDK empowers us to quickly load large, full-precision LAS models on the Web, enabling
seamless browser viewing within seconds. To achieve this, we use our CLI tools to
pre-convert LAS models into xeokit's efficient and fast-loading native XKT format.</p>
<p>Our conversion, and our <a href="https://xeokit.github.io/xeokit-sdk/docs/class/src/plugins/LASLoaderPlugin/LASLoaderPlugin.js~LASLoaderPlugin.html">LASLoaderPlugin</a>, only supports LAS/lAZ files up to LAS v1.3. We do not support LAS v1.4.</p>
<p>We routinely validate the effectiveness of our conversion tools through tests with xeokit's
conversion test suite. This suite performs batch conversions on a selected set of LAS
models, resulting in the XKT models listed in the "Converted LAS Models" section below.</p>
<p>In this page, you'll also find
detailed information on how we configure and execute the conversion process, providing
insights for establishing your own LAS conversion pipeline with xeokit.</p>
</div>
</div>
<div class="row mt-5">
<div class="col-12 mx-auto" style=" justify-content: center; align-items:center">
<div style="width:300px; margin: auto;">
<ul>
<li><a href="#testResults">Converted LAS Models</a></li>
<li><a href="#systemInfo">Conversion System Configuration</a></li>
<li><a href="#testMethod">Conversion Pipeline Setup</a></li>
</ul>
</div>
</div>
</div>
</div>
</section>
<section id="testResults" class="test-results-section">
<div class="container pt-6 pb-0">
<div class="row testimonial-row center-text">
<div class="col-lg-12">
<h1>Converted LAS Models</h1>
</div>
</div>
<div class="row left-text">
<div class="col-lg-12">
<p>In the table below are the results from our most recent LAS conversion run. On the far right, select
"View" to
observe the converted model in a xeokit web viewer. Choose "Log" to inspect the conversion log
associated with that model. Additionally, "Link" provides a link through which you can hot-load the
converted model into a xeokit web viewer.</p>
</div>
</div>
</div>
</section>
<section class="test-results-section">
<div class="container pt-6 pb-0">
<div class="row">
<div class="col-lg-12">
<table class="table table-sm table-hover table-bordered mb-0">
<tr style="background-color: rgba(0, 0, 0, 0.05);"><th>las File</th><th style="text-align:right;">las Size (Mb)</th><th style="text-align:right;">XKT Size (Mb)</th><th style="text-align:right;">Conversion Time (Secs)</th><th style="text-align:center;" colspan="5">Converted XKT</th></tr>
<tbody>
<tr style="height: 60px; vertical-align:bottom; background-color: rgba(0, 0, 0, 0.05);"><td style="font-size: larger; height: 60px; vertical-align:bottom;" ><b>samples</td><td></td><td></td><td></td><td colspan="5"></td></tr>
<tr>
<!-- <td><a href="">Africa_Palace.las</a></td>-->
<td>Africa_Palace.las</td>
<td style="text-align:right;">536.5584</td>
<td style="text-align:right;">0</td>
<td style="text-align:right;">17.58</td>
<td style="text-align:center;"><a href="./las-viewer.html?dataDir=https://xeokit.github.io/xeokit-model-conversion-tests/convertedModels/las/&projectId=samples&modelId=Africa_Palace">View</a> </td>
<td style="text-align:center;"><a href="./las-debug.html?dataDir=./convertedModels/las/&projectId=samples&modelId=Africa_Palace">Debug</a> </td>
<td style="text-align:center;"><a href="./convertedModels/las//projects/samples/models/Africa_Palace/log.txt">Log</a></td>
<td style="text-align:center;"><a href="./convertedModels/las//projects/samples/index.json">Link</a></td>
<td style="text-align:center;"><a href="javascript:createModelZip('./convertedModels/las//projects/samples/index.json', 'samples', 'Africa_Palace')">Zip</a></td>
</tr>
<tr>
<!-- <td><a href="">Nalls_Pumpkin_Hill.las</a></td>-->
<td>Nalls_Pumpkin_Hill.las</td>
<td style="text-align:right;">33.0145</td>
<td style="text-align:right;">0</td>
<td style="text-align:right;">7.62</td>
<td style="text-align:center;"><a href="./las-viewer.html?dataDir=https://xeokit.github.io/xeokit-model-conversion-tests/convertedModels/las/&projectId=samples&modelId=Nalls_Pumpkin_Hill">View</a> </td>
<td style="text-align:center;"><a href="./las-debug.html?dataDir=./convertedModels/las/&projectId=samples&modelId=Nalls_Pumpkin_Hill">Debug</a> </td>
<td style="text-align:center;"><a href="./convertedModels/las//projects/samples/models/Nalls_Pumpkin_Hill/log.txt">Log</a></td>
<td style="text-align:center;"><a href="./convertedModels/las//projects/samples/index.json">Link</a></td>
<td style="text-align:center;"><a href="javascript:createModelZip('./convertedModels/las//projects/samples/index.json', 'samples', 'Nalls_Pumpkin_Hill')">Zip</a></td>
</tr>
<tr>
<!-- <td><a href="">autzen.las</a></td>-->
<td>autzen.las</td>
<td style="text-align:right;">56.3510</td>
<td style="text-align:right;">0</td>
<td style="text-align:right;">20.16</td>
<td style="text-align:center;"><a href="./las-viewer.html?dataDir=https://xeokit.github.io/xeokit-model-conversion-tests/convertedModels/las/&projectId=samples&modelId=autzen">View</a> </td>
<td style="text-align:center;"><a href="./las-debug.html?dataDir=./convertedModels/las/&projectId=samples&modelId=autzen">Debug</a> </td>
<td style="text-align:center;"><a href="./convertedModels/las//projects/samples/models/autzen/log.txt">Log</a></td>
<td style="text-align:center;"><a href="./convertedModels/las//projects/samples/index.json">Link</a></td>
<td style="text-align:center;"><a href="javascript:createModelZip('./convertedModels/las//projects/samples/index.json', 'samples', 'autzen')">Zip</a></td>
</tr>
</tbody></table></div></div></div></section>
<br><br><br>
<section id="systemInfo" class="system-info-section">
<div class="container pt-0 pb-0">
<div class="row testimonial-row center-text">
<div class="col-lg-12">
<h1>LAS Conversion System Configuration</h1>
</div>
</div>
<div class="row testimonial-row left-text">
<div class="col-lg-12">
<p>We're running our converter on a fairly well-specced system, which keeps the office cat warm on a
cold
day. Below is a summary of our system
specifications, along with the versions of the CLI converter tools and xeokit SDK we used. In this
case,
we're running everything on Linux, but
you can just as easily run it on Windows and Mac O/S.</p>
</div>
</div>
<div class="row testimonial-row">
<div class="col-lg-12">
<table class="table table-sm table-hover table-striped table-bordered mb-0">
<tbody>
<tr>
<td>Date</td>
<td>Tue Jun 18 2024 13:42:51 GMT+0200 (Central European Summer Time)</td>
</tr>
<tr>
<td>CPU Manufacturer</td>
<td>Intel</td>
</tr>
<tr>
<td>CPU Brand</td>
<td>Xeon® Gold 6134</td>
</tr>
<tr>
<td>Memory</td>
<td>135 GB</td>
</tr>
<tr>
<td>OS Platform</td>
<td>linux</td>
</tr>
<tr>
<td>OS Distro</td>
<td>Ubuntu</td>
</tr>
<tr>
<td>OS Release</td>
<td>22.04.4 LTS</td>
</tr>
<tr>
<td>Node.js</td>
<td>v20.12.0</td>
</tr>
<tr>
<td>@xeokit/xeokit-convert</td>
<td>1.1.18</td>
</tr>
<tr>
<td>@xeokit/xeokit-sdk</td>
<td>2.6.22</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="row mt-5 mb-5">
<div class="col-sm-12 text-center">
<a class="btn btn-lg btn-outline-primary border-2" href="./convertedModels/las/systemInfo.json">Full System
Configuration
>></a>
</div>
</div>
</div>
</section>
<section id="testMethod" class="test-results-section mb-5">
<div class="container pt-6 pb-0">
<div class="row center-text mb-5">
<div class="col-lg-12">
<h1>LAS Conversion Pipeline Setup</h1>
</div>
</div>
<div class="row mb-5">
<div class="col-12 mx-auto left-text">
<p>We ran our converter tools on each LAS file in our test collection using the CLI commands shown
below.
For each LAS file, we substitute "model" with the name of that file.</p>
<br>
<h2 style="margin-bottom: 1em">convert2xkt</h2>
<p>The <a href="https://github.com/xeokit/xeokit-convert">convert2xkt</a> tool
converts various model file formats into XKT format,
which we can view in the browser with xeokit. We use it to convert <code>LAS</code> files into XKT files, as shown
in the command below.</p><p>XKT is
xeokit's web-friendly native binary model format,
designed to load quickly into
its web viewer. Note that <code>convert2xkt</code> is
NodeJS-based CLI tool that often needs us to allocate it some extra memory, as we're doing here.</p>
<pre class="mt-4 mb-1 mb-5" style="background-color: #1b1e21; color: #3dff08; padding: 15px;">
node --max-old-space-size=14000 convert2xkt -c convert2xkt.conf.json -s model.las -o model.xkt</pre>
<p>
</p>
<h2 style="margin-bottom: 1em">xeokit-sdk</h2>
<p>Finally, we visualize our XKT file in the browser using xeokit's web viewer. In JavaScript, we simply create a <a
href="https://xeokit.github.io/xeokit-sdk/docs/class/src/viewer/Viewer.js~Viewer.html"><code>Viewer</code></a>,
add an <a
href="https://xeokit.github.io/xeokit-sdk/docs/class/src/plugins/XKTLoaderPlugin/XKTLoaderPlugin.js~XKTLoaderPlugin.html"><code>XKTLoaderPlugin</code></a>,
and then load our XKT file.</p>
<div style="width:100%; background-color: black;">
<img src="./img/xeokit-viewer-las.svg"/>
</div>
<br>
</div>
</div>
<div class="row left-text mt-5">
<div class="col-md-12">
<h2 style="margin-bottom: 1em">convert2xkt Arguments</h2>
<p>The table below lists the arguments we're providing to
<code>convert2xkt</code> to convert each LAS file.</p>
<table class="table table-sm table-hover table-striped table-bordered mb-0">
<!-- <tr style="background-color: rgba(0, 0, 0, 0.05);"><th><span class="nowrap">Option</span></th><th style="text-align:left;">Description</th></tr>-->
<tbody>
<tr>
<td><code class="nowrap" style="font-size: larger; font-weight: bold">-c
convert2xkt.conf.json</code></td>
<!-- <td></td>-->
<td>Path to convert2xkt configs file.</td>
</tr>
<tr>
<td><code class="nowrap" style="font-size: larger; font-weight: bold">-s</code></td>
<!-- <td></td>-->
<td>Path to the input LAS/LAZ file to convert.
</td>
</tr>
<tr>
<td><code class="nowrap" style="font-size: larger; font-weight: bold">-o</code></td>
<!-- <td></td>-->
<td>Path to the XKT file to create as output.</td>
</tr>
</tbody>
</table>
<br>
<h2 style="margin-bottom: 1em">convert2xkt Configs</h2>
<p>As shown from the provided arguments, we pass configurations to <code>convert2xkt</code> through a
JSON
configuration file named <a href="./convertedModels/ifc/convert2xkt.conf.json"><code>convert2xkt.conf.json</code></a>.
The configuration file's content is displayed below. </p> <p>In the configuration file, the
"sourceConfigs" object contains the "las" and "laz" objects, which contain the configurations
used by
<code>convert2xkt</code> in our LAS/LAZ conversion tests.</p>
<div style="background-color: black; " id="convert2xkt.conf"></div>
</div>
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