1775 lines
73 KiB
HTML
1775 lines
73 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>PolylineCollection - Cesium Documentation</title>
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<!--[if lt IE 9]>
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<script src="javascript/html5.js"></script>
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<![endif]-->
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<link href="styles/jsdoc-default.css" rel="stylesheet">
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<link href="styles/prism.css" rel="stylesheet">
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</head>
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<body>
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<div id="main">
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<h1 class="page-title">
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<a href="index.html"><img src="Images/CesiumLogo.png" class="cesiumLogo"></a>
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PolylineCollection
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<div class="titleCenterer"></div>
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</h1>
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<section>
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<header>
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</header>
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<article>
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<div class="container-overview">
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<div class="nameContainer">
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<h4 class="name" id="PolylineCollection">
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<a href="#PolylineCollection" class="doc-link"></a>
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new Cesium.PolylineCollection<span class="signature">(<span class="optional">options</span>)</span>
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<div class="source-link rightLinks">
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<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L117">Scene/PolylineCollection.js 117</a>
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</div>
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</h4>
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</div>
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<div class="description">
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A renderable collection of polylines.
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<br /><br />
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<div align="center">
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<img src="Images/Polyline.png" width="400" height="300" /><br />
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Example polylines
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</div>
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<br /><br />
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Polylines are added and removed from the collection using <a href="PolylineCollection.html#add"><code>PolylineCollection#add</code></a>
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and <a href="PolylineCollection.html#remove"><code>PolylineCollection#remove</code></a>.
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</div>
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<h5>Performance:</h5>
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<p class="description">For best performance, prefer a few collections, each with many polylines, to
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many collections with only a few polylines each. Organize collections so that polylines
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with the same update frequency are in the same collection, i.e., polylines that do not
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change should be in one collection; polylines that change every frame should be in another
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collection; and so on.</p>
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<table class="params">
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<thead>
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<tr>
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<th>Name</th>
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<th>Type</th>
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<th class="last">Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td class="name"><code>options</code></td>
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<td class="type">
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<span class="param-type">Object</span>
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</td>
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<td class="description last">
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<span class="optional">optional</span>
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Object with the following properties:
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<table class="params">
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<thead>
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<tr>
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<th>Name</th>
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<th>Type</th>
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<th>Default</th>
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<th class="last">Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td class="name"><code>modelMatrix</code></td>
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<td class="type">
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<span class="param-type"><a href="Matrix4.html">Matrix4</a></span>
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</td>
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<td class="default">
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<code class="language-javascript">Matrix4.IDENTITY</code>
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</td>
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<td class="description last">
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<span class="optional">optional</span>
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The 4x4 transformation matrix that transforms each polyline from model to world coordinates.</td>
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</tr>
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<tr>
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<td class="name"><code>debugShowBoundingVolume</code></td>
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<td class="type">
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<span class="param-type">Boolean</span>
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</td>
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<td class="default">
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<code class="language-javascript">false</code>
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</td>
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<td class="description last">
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<span class="optional">optional</span>
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For debugging only. Determines if this primitive's commands' bounding spheres are shown.</td>
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</tr>
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<tr>
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<td class="name"><code>show</code></td>
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<td class="type">
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<span class="param-type">Boolean</span>
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</td>
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<td class="default">
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<code class="language-javascript">true</code>
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</td>
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<td class="description last">
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<span class="optional">optional</span>
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Determines if the polylines in the collection will be shown.</td>
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</tr>
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</tbody>
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</table>
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</td>
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</tr>
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</tbody>
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</table>
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<dl class="details">
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<h5>Example:</h5>
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<pre><code class="language-javascript">// Create a polyline collection with two polylines
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const polylines = new Cesium.PolylineCollection();
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polylines.add({
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positions : Cesium.Cartesian3.fromDegreesArray([
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-75.10, 39.57,
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-77.02, 38.53,
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-80.50, 35.14,
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-80.12, 25.46]),
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width : 2
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});
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polylines.add({
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positions : Cesium.Cartesian3.fromDegreesArray([
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-73.10, 37.57,
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-75.02, 36.53,
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-78.50, 33.14,
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-78.12, 23.46]),
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width : 4
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});</code></pre>
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<h5>See:</h5>
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<ul class="see-list">
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<li><a href="PolylineCollection.html#add">PolylineCollection#add</a></li>
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<li><a href="PolylineCollection.html#remove">PolylineCollection#remove</a></li>
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<li><a href="Polyline.html">Polyline</a></li>
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<li><a href="LabelCollection.html">LabelCollection</a></li>
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</ul>
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</dl>
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</div>
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<h3 class="subsection-title">Members</h3>
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<div class="nameContainer">
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<h4 class="name" id="debugShowBoundingVolume">
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<a href="#debugShowBoundingVolume" class="doc-link"></a>
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debugShowBoundingVolume<span class="type-signature"> : Boolean</span>
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<div class="source-link rightLinks">
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<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L152">Scene/PolylineCollection.js 152</a>
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</div>
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</h4>
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</div>
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<div class="description">
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This property is for debugging only; it is not for production use nor is it optimized.
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<p>
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Draws the bounding sphere for each draw command in the primitive.
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</p>
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</div>
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<dl class="details">
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<span class="details-header">Default Value:</span>
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<code class="language-javascript">false</code>
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</dl>
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<div class="nameContainer">
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<h4 class="name" id="length">
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<a href="#length" class="doc-link"></a>
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length<span class="type-signature"> : Number</span>
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<div class="source-link rightLinks">
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<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L205">Scene/PolylineCollection.js 205</a>
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</div>
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</h4>
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</div>
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<div class="description">
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Returns the number of polylines in this collection. This is commonly used with
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<a href="PolylineCollection.html#get"><code>PolylineCollection#get</code></a> to iterate over all the polylines
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in the collection.
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</div>
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<dl class="details">
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</dl>
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<div class="nameContainer">
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<h4 class="name" id="modelMatrix">
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<a href="#modelMatrix" class="doc-link"></a>
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modelMatrix<span class="type-signature"> : <a href="Matrix4.html">Matrix4</a></span>
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<div class="source-link rightLinks">
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<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L137">Scene/PolylineCollection.js 137</a>
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</div>
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</h4>
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</div>
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<div class="description">
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The 4x4 transformation matrix that transforms each polyline in this collection from model to world coordinates.
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When this is the identity matrix, the polylines are drawn in world coordinates, i.e., Earth's WGS84 coordinates.
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Local reference frames can be used by providing a different transformation matrix, like that returned
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by <a href="Transforms.html#.eastNorthUpToFixedFrame"><code>Transforms.eastNorthUpToFixedFrame</code></a>.
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</div>
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<dl class="details">
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<span class="details-header">Default Value:</span>
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<code class="language-javascript"><a href="Matrix4.html#.IDENTITY"><code>Matrix4.IDENTITY</code></a></code>
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</dl>
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<div class="nameContainer">
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<h4 class="name" id="show">
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<a href="#show" class="doc-link"></a>
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show<span class="type-signature"> : Boolean</span>
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<div class="source-link rightLinks">
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<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L126">Scene/PolylineCollection.js 126</a>
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</div>
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</h4>
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||
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</div>
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<div class="description">
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Determines if polylines in this collection will be shown.
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||
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</div>
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<dl class="details">
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<span class="details-header">Default Value:</span>
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||
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<code class="language-javascript">true</code>
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||
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|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h3 class="subsection-title">Methods</h3>
|
||
|
|
||
|
|
||
|
|
||
|
<div class="nameContainer">
|
||
|
<h4 class="name" id="add">
|
||
|
<a href="#add" class="doc-link"></a>
|
||
|
add<span class="signature">(<span class="optional">options</span>)</span> → <span class="type-signature returnType"><a href="Polyline.html">Polyline</a></span>
|
||
|
|
||
|
|
||
|
<div class="source-link rightLinks">
|
||
|
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L241">Scene/PolylineCollection.js 241</a>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</h4>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="description">
|
||
|
Creates and adds a polyline with the specified initial properties to the collection.
|
||
|
The added polyline is returned so it can be modified or removed from the collection later.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Performance:</h5>
|
||
|
<p class="description">After calling <code>add</code>, <a href="PolylineCollection.html#update"><code>PolylineCollection#update</code></a> is called and
|
||
|
the collection's vertex buffer is rewritten - an <code>O(n)</code> operation that also incurs CPU to GPU overhead.
|
||
|
For best performance, add as many polylines as possible before calling <code>update</code>.</p>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<table class="params">
|
||
|
<thead>
|
||
|
<tr>
|
||
|
|
||
|
<th>Name</th>
|
||
|
|
||
|
|
||
|
<th>Type</th>
|
||
|
|
||
|
|
||
|
|
||
|
<th class="last">Description</th>
|
||
|
</tr>
|
||
|
</thead>
|
||
|
|
||
|
<tbody>
|
||
|
|
||
|
|
||
|
<tr>
|
||
|
|
||
|
<td class="name"><code>options</code></td>
|
||
|
|
||
|
|
||
|
<td class="type">
|
||
|
|
||
|
|
||
|
<span class="param-type">Object</span>
|
||
|
|
||
|
|
||
|
|
||
|
</td>
|
||
|
|
||
|
|
||
|
|
||
|
<td class="description last">
|
||
|
|
||
|
|
||
|
<span class="optional">optional</span>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
A template describing the polyline's properties as shown in Example 1.</td>
|
||
|
</tr>
|
||
|
|
||
|
|
||
|
</tbody>
|
||
|
</table>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Returns:</h5>
|
||
|
|
||
|
|
||
|
<div class="param-desc">
|
||
|
The polyline that was added to the collection.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Throws:</h5>
|
||
|
<ul>
|
||
|
<li>
|
||
|
|
||
|
<div class="param-desc">
|
||
|
|
||
|
<span class="param-type"><a href="DeveloperError.html">DeveloperError</a></span>
|
||
|
|
||
|
: This object was destroyed, i.e., destroy() was called.
|
||
|
</div>
|
||
|
|
||
|
</li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
<dl class="details">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Example:</h5>
|
||
|
|
||
|
<pre><code class="language-javascript">// Example 1: Add a polyline, specifying all the default values.
|
||
|
const p = polylines.add({
|
||
|
show : true,
|
||
|
positions : ellipsoid.cartographicArrayToCartesianArray([
|
||
|
Cesium.Cartographic.fromDegrees(-75.10, 39.57),
|
||
|
Cesium.Cartographic.fromDegrees(-77.02, 38.53)]),
|
||
|
width : 1
|
||
|
});</code></pre>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>See:</h5>
|
||
|
<ul class="see-list">
|
||
|
<li><a href="PolylineCollection.html#remove">PolylineCollection#remove</a></li>
|
||
|
|
||
|
<li><a href="PolylineCollection.html#removeAll">PolylineCollection#removeAll</a></li>
|
||
|
|
||
|
<li><a href="PolylineCollection.html#update">PolylineCollection#update</a></li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="nameContainer">
|
||
|
<h4 class="name" id="contains">
|
||
|
<a href="#contains" class="doc-link"></a>
|
||
|
contains<span class="signature">(polyline)</span> → <span class="type-signature returnType">Boolean</span>
|
||
|
|
||
|
|
||
|
<div class="source-link rightLinks">
|
||
|
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L327">Scene/PolylineCollection.js 327</a>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</h4>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="description">
|
||
|
Determines if this collection contains the specified polyline.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<table class="params">
|
||
|
<thead>
|
||
|
<tr>
|
||
|
|
||
|
<th>Name</th>
|
||
|
|
||
|
|
||
|
<th>Type</th>
|
||
|
|
||
|
|
||
|
|
||
|
<th class="last">Description</th>
|
||
|
</tr>
|
||
|
</thead>
|
||
|
|
||
|
<tbody>
|
||
|
|
||
|
|
||
|
<tr>
|
||
|
|
||
|
<td class="name"><code>polyline</code></td>
|
||
|
|
||
|
|
||
|
<td class="type">
|
||
|
|
||
|
|
||
|
<span class="param-type"><a href="Polyline.html">Polyline</a></span>
|
||
|
|
||
|
|
||
|
|
||
|
</td>
|
||
|
|
||
|
|
||
|
|
||
|
<td class="description last">
|
||
|
|
||
|
The polyline to check for.</td>
|
||
|
</tr>
|
||
|
|
||
|
|
||
|
</tbody>
|
||
|
</table>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Returns:</h5>
|
||
|
|
||
|
|
||
|
<div class="param-desc">
|
||
|
true if this collection contains the polyline, false otherwise.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<dl class="details">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>See:</h5>
|
||
|
<ul class="see-list">
|
||
|
<li><a href="PolylineCollection.html#get">PolylineCollection#get</a></li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="nameContainer">
|
||
|
<h4 class="name" id="destroy">
|
||
|
<a href="#destroy" class="doc-link"></a>
|
||
|
destroy<span class="signature">()</span>
|
||
|
|
||
|
|
||
|
<div class="source-link rightLinks">
|
||
|
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L813">Scene/PolylineCollection.js 813</a>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</h4>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="description">
|
||
|
Destroys the WebGL resources held by this object. Destroying an object allows for deterministic
|
||
|
release of WebGL resources, instead of relying on the garbage collector to destroy this object.
|
||
|
<br /><br />
|
||
|
Once an object is destroyed, it should not be used; calling any function other than
|
||
|
<code>isDestroyed</code> will result in a <a href="DeveloperError.html"><code>DeveloperError</code></a> exception. Therefore,
|
||
|
assign the return value (<code>undefined</code>) to the object as done in the example.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Throws:</h5>
|
||
|
<ul>
|
||
|
<li>
|
||
|
|
||
|
<div class="param-desc">
|
||
|
|
||
|
<span class="param-type"><a href="DeveloperError.html">DeveloperError</a></span>
|
||
|
|
||
|
: This object was destroyed, i.e., destroy() was called.
|
||
|
</div>
|
||
|
|
||
|
</li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
<dl class="details">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Example:</h5>
|
||
|
|
||
|
<pre><code class="language-javascript">polylines = polylines && polylines.destroy();</code></pre>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>See:</h5>
|
||
|
<ul class="see-list">
|
||
|
<li><a href="PolylineCollection.html#isDestroyed">PolylineCollection#isDestroyed</a></li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="nameContainer">
|
||
|
<h4 class="name" id="get">
|
||
|
<a href="#get" class="doc-link"></a>
|
||
|
get<span class="signature">(index)</span> → <span class="type-signature returnType"><a href="Polyline.html">Polyline</a></span>
|
||
|
|
||
|
|
||
|
<div class="source-link rightLinks">
|
||
|
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L357">Scene/PolylineCollection.js 357</a>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</h4>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="description">
|
||
|
Returns the polyline in the collection at the specified index. Indices are zero-based
|
||
|
and increase as polylines are added. Removing a polyline shifts all polylines after
|
||
|
it to the left, changing their indices. This function is commonly used with
|
||
|
<a href="PolylineCollection.html#length"><code>PolylineCollection#length</code></a> to iterate over all the polylines
|
||
|
in the collection.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Performance:</h5>
|
||
|
<p class="description">If polylines were removed from the collection and
|
||
|
<a href="PolylineCollection.html#update"><code>PolylineCollection#update</code></a> was not called, an implicit <code>O(n)</code>
|
||
|
operation is performed.</p>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<table class="params">
|
||
|
<thead>
|
||
|
<tr>
|
||
|
|
||
|
<th>Name</th>
|
||
|
|
||
|
|
||
|
<th>Type</th>
|
||
|
|
||
|
|
||
|
|
||
|
<th class="last">Description</th>
|
||
|
</tr>
|
||
|
</thead>
|
||
|
|
||
|
<tbody>
|
||
|
|
||
|
|
||
|
<tr>
|
||
|
|
||
|
<td class="name"><code>index</code></td>
|
||
|
|
||
|
|
||
|
<td class="type">
|
||
|
|
||
|
|
||
|
<span class="param-type">Number</span>
|
||
|
|
||
|
|
||
|
|
||
|
</td>
|
||
|
|
||
|
|
||
|
|
||
|
<td class="description last">
|
||
|
|
||
|
The zero-based index of the polyline.</td>
|
||
|
</tr>
|
||
|
|
||
|
|
||
|
</tbody>
|
||
|
</table>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Returns:</h5>
|
||
|
|
||
|
|
||
|
<div class="param-desc">
|
||
|
The polyline at the specified index.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Throws:</h5>
|
||
|
<ul>
|
||
|
<li>
|
||
|
|
||
|
<div class="param-desc">
|
||
|
|
||
|
<span class="param-type"><a href="DeveloperError.html">DeveloperError</a></span>
|
||
|
|
||
|
: This object was destroyed, i.e., destroy() was called.
|
||
|
</div>
|
||
|
|
||
|
</li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
<dl class="details">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Example:</h5>
|
||
|
|
||
|
<pre><code class="language-javascript">// Toggle the show property of every polyline in the collection
|
||
|
const len = polylines.length;
|
||
|
for (let i = 0; i < len; ++i) {
|
||
|
const p = polylines.get(i);
|
||
|
p.show = !p.show;
|
||
|
}</code></pre>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>See:</h5>
|
||
|
<ul class="see-list">
|
||
|
<li><a href="PolylineCollection.html#length">PolylineCollection#length</a></li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="nameContainer">
|
||
|
<h4 class="name" id="isDestroyed">
|
||
|
<a href="#isDestroyed" class="doc-link"></a>
|
||
|
isDestroyed<span class="signature">()</span> → <span class="type-signature returnType">Boolean</span>
|
||
|
|
||
|
|
||
|
<div class="source-link rightLinks">
|
||
|
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L793">Scene/PolylineCollection.js 793</a>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</h4>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="description">
|
||
|
Returns true if this object was destroyed; otherwise, false.
|
||
|
<br /><br />
|
||
|
If this object was destroyed, it should not be used; calling any function other than
|
||
|
<code>isDestroyed</code> will result in a <a href="DeveloperError.html"><code>DeveloperError</code></a> exception.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Returns:</h5>
|
||
|
|
||
|
|
||
|
<div class="param-desc">
|
||
|
<code>true</code> if this object was destroyed; otherwise, <code>false</code>.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<dl class="details">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>See:</h5>
|
||
|
<ul class="see-list">
|
||
|
<li><a href="PolylineCollection.html#destroy">PolylineCollection#destroy</a></li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="nameContainer">
|
||
|
<h4 class="name" id="remove">
|
||
|
<a href="#remove" class="doc-link"></a>
|
||
|
remove<span class="signature">(polyline)</span> → <span class="type-signature returnType">Boolean</span>
|
||
|
|
||
|
|
||
|
<div class="source-link rightLinks">
|
||
|
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L274">Scene/PolylineCollection.js 274</a>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</h4>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="description">
|
||
|
Removes a polyline from the collection.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Performance:</h5>
|
||
|
<p class="description">After calling <code>remove</code>, <a href="PolylineCollection.html#update"><code>PolylineCollection#update</code></a> is called and
|
||
|
the collection's vertex buffer is rewritten - an <code>O(n)</code> operation that also incurs CPU to GPU overhead.
|
||
|
For best performance, remove as many polylines as possible before calling <code>update</code>.
|
||
|
If you intend to temporarily hide a polyline, it is usually more efficient to call
|
||
|
<a href="Polyline.html#show"><code>Polyline#show</code></a> instead of removing and re-adding the polyline.</p>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<table class="params">
|
||
|
<thead>
|
||
|
<tr>
|
||
|
|
||
|
<th>Name</th>
|
||
|
|
||
|
|
||
|
<th>Type</th>
|
||
|
|
||
|
|
||
|
|
||
|
<th class="last">Description</th>
|
||
|
</tr>
|
||
|
</thead>
|
||
|
|
||
|
<tbody>
|
||
|
|
||
|
|
||
|
<tr>
|
||
|
|
||
|
<td class="name"><code>polyline</code></td>
|
||
|
|
||
|
|
||
|
<td class="type">
|
||
|
|
||
|
|
||
|
<span class="param-type"><a href="Polyline.html">Polyline</a></span>
|
||
|
|
||
|
|
||
|
|
||
|
</td>
|
||
|
|
||
|
|
||
|
|
||
|
<td class="description last">
|
||
|
|
||
|
The polyline to remove.</td>
|
||
|
</tr>
|
||
|
|
||
|
|
||
|
</tbody>
|
||
|
</table>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Returns:</h5>
|
||
|
|
||
|
|
||
|
<div class="param-desc">
|
||
|
<code>true</code> if the polyline was removed; <code>false</code> if the polyline was not found in the collection.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Throws:</h5>
|
||
|
<ul>
|
||
|
<li>
|
||
|
|
||
|
<div class="param-desc">
|
||
|
|
||
|
<span class="param-type"><a href="DeveloperError.html">DeveloperError</a></span>
|
||
|
|
||
|
: This object was destroyed, i.e., destroy() was called.
|
||
|
</div>
|
||
|
|
||
|
</li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
<dl class="details">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Example:</h5>
|
||
|
|
||
|
<pre><code class="language-javascript">const p = polylines.add(...);
|
||
|
polylines.remove(p); // Returns true</code></pre>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>See:</h5>
|
||
|
<ul class="see-list">
|
||
|
<li><a href="PolylineCollection.html#add">PolylineCollection#add</a></li>
|
||
|
|
||
|
<li><a href="PolylineCollection.html#removeAll">PolylineCollection#removeAll</a></li>
|
||
|
|
||
|
<li><a href="PolylineCollection.html#update">PolylineCollection#update</a></li>
|
||
|
|
||
|
<li><a href="Polyline.html#show">Polyline#show</a></li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="nameContainer">
|
||
|
<h4 class="name" id="removeAll">
|
||
|
<a href="#removeAll" class="doc-link"></a>
|
||
|
removeAll<span class="signature">()</span>
|
||
|
|
||
|
|
||
|
<div class="source-link rightLinks">
|
||
|
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L309">Scene/PolylineCollection.js 309</a>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</h4>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="description">
|
||
|
Removes all polylines from the collection.
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Performance:</h5>
|
||
|
<p class="description"><code>O(n)</code>. It is more efficient to remove all the polylines
|
||
|
from a collection and then add new ones than to create a new collection entirely.</p>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Throws:</h5>
|
||
|
<ul>
|
||
|
<li>
|
||
|
|
||
|
<div class="param-desc">
|
||
|
|
||
|
<span class="param-type"><a href="DeveloperError.html">DeveloperError</a></span>
|
||
|
|
||
|
: This object was destroyed, i.e., destroy() was called.
|
||
|
</div>
|
||
|
|
||
|
</li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
<dl class="details">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Example:</h5>
|
||
|
|
||
|
<pre><code class="language-javascript">polylines.add(...);
|
||
|
polylines.add(...);
|
||
|
polylines.removeAll();</code></pre>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>See:</h5>
|
||
|
<ul class="see-list">
|
||
|
<li><a href="PolylineCollection.html#add">PolylineCollection#add</a></li>
|
||
|
|
||
|
<li><a href="PolylineCollection.html#remove">PolylineCollection#remove</a></li>
|
||
|
|
||
|
<li><a href="PolylineCollection.html#update">PolylineCollection#update</a></li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="nameContainer">
|
||
|
<h4 class="name" id="update">
|
||
|
<a href="#update" class="doc-link"></a>
|
||
|
update<span class="signature">()</span>
|
||
|
|
||
|
|
||
|
<div class="source-link rightLinks">
|
||
|
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/PolylineCollection.js#L423">Scene/PolylineCollection.js 423</a>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
</h4>
|
||
|
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<div class="description">
|
||
|
Called when <a href="Viewer.html"><code>Viewer</code></a> or <a href="CesiumWidget.html"><code>CesiumWidget</code></a> render the scene to
|
||
|
get the draw commands needed to render this primitive.
|
||
|
<p>
|
||
|
Do not call this function directly. This is documented just to
|
||
|
list the exceptions that may be propagated when the scene is rendered:
|
||
|
</p>
|
||
|
</div>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<h5>Throws:</h5>
|
||
|
<ul>
|
||
|
<li>
|
||
|
|
||
|
<div class="param-desc">
|
||
|
|
||
|
<span class="param-type"><a href="RuntimeError.html">RuntimeError</a></span>
|
||
|
|
||
|
: Vertex texture fetch support is required to render primitives with per-instance attributes. The maximum number of vertex texture image units must be greater than zero.
|
||
|
</div>
|
||
|
|
||
|
</li>
|
||
|
</ul>
|
||
|
|
||
|
|
||
|
|
||
|
<dl class="details">
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
</dl>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
</article>
|
||
|
|
||
|
</section>
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
<footer>
|
||
|
Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.6.10</a>
|
||
|
</footer>
|
||
|
</div>
|
||
|
|
||
|
<div class="nav">
|
||
|
<div class="menu">
|
||
|
<input type="text" class="classFilter" id="ClassFilter" placeholder="Search">
|
||
|
<ul id="ClassList"><li data-name="Animation"><a href="Animation.html">Animation</a></li><li data-name="AnimationViewModel"><a href="AnimationViewModel.html">AnimationViewModel</a></li><li data-name="Appearance"><a href="Appearance.html">Appearance</a></li><li data-name="ArcGisMapServerImageryProvider"><a href="ArcGisMapServerImageryProvider.html">ArcGisMapServerImageryProvider</a></li><li data-name="ArcGISTiledElevationTerrainProvider"><a href="ArcGISTiledElevationTerrainProvider.html">ArcGISTiledElevationTerrainProvider</a></li><li data-name="ArcType"><a href="global.html#ArcType">ArcType</a></li><li data-name="AssociativeArray"><a href="AssociativeArray.html">AssociativeArray</a></li><li data-name="Axis"><a href="global.html#Axis">Axis</a></li><li data-name="AxisAlignedBoundingBox"><a href="AxisAlignedBoundingBox.html">AxisAlignedBoundingBox</a></li><li data-name="backFaceCulling"><a href="global.html#backFaceCulling">backFaceCulling</a></li><li data-name="barycentricCoordinates"><a href="global.html#barycentricCoordinates">barycentricCoordinates</a></li><li data-name="BaseLayerPicker"><a href="BaseLayerPicker.html">BaseLayerPicker</a></li><li data-name="BaseLayerPickerViewModel"><a href="BaseLayerPickerViewModel.html">BaseLayerPickerViewModel</a></li><li data-name="Billboard"><a href="Billboard.html">Billboard</a></li><li data-name="BillboardCollection"><a href="BillboardCollection.html">BillboardCollection</a></li><li data-name="BillboardGraphics"><a href="BillboardGraphics.html">BillboardGraphics</a></li><li data-name="BillboardVisualizer"><a href="BillboardVisualizer.html">BillboardVisualizer</a></li><li data-name="binarySearch"><a href="global.html#binarySearch">binarySearch</a></li><li data-name="binarySearchComparator"><a href="global.html#binarySearchComparator">binarySearchComparator</a></li><li data-name="BingMapsGeocoderService"><a href="BingMapsGeocoderService.html">BingMapsGeocoderService</a></li><li data-name="BingMapsImageryProvider"><a href="BingMapsImageryProvider.html">BingMapsImageryProvider</a></li><li data-name="BingMapsStyle"><a href="global.html#BingMapsStyle">BingMapsStyle</a></li><li data-name="BlendEquation"><a href="global.html#BlendEquation">BlendEquation</a></li><li data-name="BlendFunction"><a href="global.html#BlendFunction">BlendFunction</a></li><li data-name="BlendingState"><a href="BlendingState.html">BlendingState</a></li><li data-name="BlendOption"><a href="global.html#BlendOption">BlendOption</a></li><li data-name="BoundingRectangle"><a href="BoundingRectangle.html">BoundingRectangle</a></li><li data-name="BoundingSphere"><a href="BoundingSphere.html">BoundingSphere</a></li><li data-name="boundingSphere"><a href="global.html#boundingSphere">boundingSphere</a></li><li data-name="BoxEmitter"><a href="BoxEmitter.html">BoxEmitter</a></li><li data-name="BoxGeometry"><a href="BoxGeometry.html">BoxGeometry</a></li><li data-name="BoxGeometryUpdater"><a href="BoxGeometryUpdater.html">BoxGeometryUpdater</a></li><li data-name="BoxGraphics"><a href="BoxGraphics.html">BoxGraphics</a></li><li data-name="BoxOutlineGeometry"><a href="BoxOutlineGeometry.html">BoxOutlineGeometry</a></li><li data-name="buildModuleUrl"><a href="global.html#buildModuleUrl">buildModuleUrl</a></li><li data-name="CallbackProperty"><a href="CallbackProperty.html">CallbackProperty</a></li><li data-name="Camera"><a href="Camera.html">Camera</a></li><li data-name="CameraEventAggregator"><a href="CameraEventAggregator.html">CameraEventAggregator</a></li><li data-name="CameraEventType"><a href="global.html#CameraEventType">CameraEventType</a></li><li data-name="cancelAnimationFrame"><a href="global.html#cancelAnimationFrame">cancelAnimationFrame</a></li><li data-name="Cartesian2"><a href="Cartesian2.html">Cartesian2</a></li><li data-name="Cartesian3"><a href="Cartesian3.html">Cartesian3</a></li><li data-name="Cartesian4"><a href="Cartesian4.html">Cartesian4</a></li><li data-name="Cartographic"><a href="Cartographic.html">Cartographic</a></li><li data-name="CartographicGeocoderService"><a href="CartographicGeocoderServic
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</div>
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</div>
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|
<script>
|
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if (window.frameElement) {
|
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document.body.className = 'embedded';
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var ele = document.createElement('a');
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ele.className = 'popout';
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ele.target = '_blank';
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ele.href = window.location.href;
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ele.title = 'Pop out';
|
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document.getElementById('main').appendChild(ele);
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}
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// Set targets on external links. Sandcastle and GitHub shouldn't be embedded in any iframe.
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Array.prototype.forEach.call(document.getElementsByTagName('a'), function(a) {
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if (/^https?:/i.test(a.getAttribute('href'))) {
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a.target='_blank';
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}
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});
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</script>
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<script src="javascript/prism.js"></script>
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<script src="javascript/cesiumDoc.js"></script>
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</body>
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</html>
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