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2022-07-05 16:56:29 +08:00
<!DOCTYPE html>
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<title>Polyline - Cesium Documentation</title>
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<h1 class="page-title">
<a href="index.html"><img src="Images/CesiumLogo.png" class="cesiumLogo"></a>
Polyline
<div class="titleCenterer"></div>
</h1>
<section>
<header>
</header>
<article>
<div class="container-overview">
<div class="nameContainer">
<h4 class="name" id="Polyline">
<a href="#Polyline" class="doc-link"></a>
new Cesium.Polyline<span class="signature">(options, polylineCollection)</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Polyline.js#L33">Scene/Polyline.js 33</a>
</div>
</h4>
</div>
<div class="description">
A renderable polyline. Create this by calling <a href="PolylineCollection.html#add"><code>PolylineCollection#add</code></a>
</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>options</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="description last">
Object with the following properties:
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Default</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>show</code></td>
<td class="type">
<span class="param-type">Boolean</span>
</td>
<td class="default">
<code class="language-javascript">true</code>
</td>
<td class="description last">
<span class="optional">optional</span>
<code>true</code> if this polyline will be shown; otherwise, <code>false</code>.</td>
</tr>
<tr>
<td class="name"><code>width</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="default">
<code class="language-javascript">1.0</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The width of the polyline in pixels.</td>
</tr>
<tr>
<td class="name"><code>loop</code></td>
<td class="type">
<span class="param-type">Boolean</span>
</td>
<td class="default">
<code class="language-javascript">false</code>
</td>
<td class="description last">
<span class="optional">optional</span>
Whether a line segment will be added between the last and first line positions to make this line a loop.</td>
</tr>
<tr>
<td class="name"><code>material</code></td>
<td class="type">
<span class="param-type"><a href="Material.html">Material</a></span>
</td>
<td class="default">
<code class="language-javascript">Material.ColorType</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The material.</td>
</tr>
<tr>
<td class="name"><code>positions</code></td>
<td class="type">
<span class="param-type">Array.&lt;<a href="Cartesian3.html">Cartesian3</a>></span>
</td>
<td class="default">
</td>
<td class="description last">
<span class="optional">optional</span>
The positions.</td>
</tr>
<tr>
<td class="name"><code>id</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="default">
</td>
<td class="description last">
<span class="optional">optional</span>
The user-defined object to be returned when this polyline is picked.</td>
</tr>
<tr>
<td class="name"><code>distanceDisplayCondition</code></td>
<td class="type">
<span class="param-type"><a href="DistanceDisplayCondition.html">DistanceDisplayCondition</a></span>
</td>
<td class="default">
</td>
<td class="description last">
<span class="optional">optional</span>
The condition specifying at what distance from the camera that this polyline will be displayed.</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td class="name"><code>polylineCollection</code></td>
<td class="type">
<span class="param-type"><a href="PolylineCollection.html">PolylineCollection</a></span>
</td>
<td class="description last">
The renderable polyline collection.</td>
</tr>
</tbody>
</table>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="PolylineCollection.html">PolylineCollection</a></li>
</ul>
</dl>
</div>
<h3 class="subsection-title">Members</h3>
<div class="nameContainer">
<h4 class="name" id="distanceDisplayCondition">
<a href="#distanceDisplayCondition" class="doc-link"></a>
distanceDisplayCondition<span class="type-signature"> : <a href="DistanceDisplayCondition.html">DistanceDisplayCondition</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Polyline.js#L331">Scene/Polyline.js 331</a>
</div>
</h4>
</div>
<div class="description">
Gets or sets the condition specifying at what distance from the camera that this polyline will be displayed.
</div>
<dl class="details">
<span class="details-header">Default Value:</span>
<code class="language-javascript">undefined</code>
</dl>
<div class="nameContainer">
<h4 class="name" id="id">
<a href="#id" class="doc-link"></a>
id<span class="type-signature"> : *</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Polyline.js#L291">Scene/Polyline.js 291</a>
</div>
</h4>
</div>
<div class="description">
Gets or sets the user-defined value returned when the polyline is picked.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="loop">
<a href="#loop" class="doc-link"></a>
loop<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Polyline.js#L246">Scene/Polyline.js 246</a>
</div>
</h4>
</div>
<div class="description">
Gets or sets whether a line segment will be added between the first and last polyline positions.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="material">
<a href="#material" class="doc-link"></a>
material<span class="type-signature"> : <a href="Material.html">Material</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Polyline.js#L199">Scene/Polyline.js 199</a>
</div>
</h4>
</div>
<div class="description">
Gets or sets the surface appearance of the polyline. This can be one of several built-in <a href="Material.html"><code>Material</code></a> objects or a custom material, scripted with
<a href="https://github.com/CesiumGS/cesium/wiki/Fabric">Fabric</a>.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="positions">
<a href="#positions" class="doc-link"></a>
positions<span class="type-signature"> : Array.&lt;<a href="Cartesian3.html">Cartesian3</a>></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Polyline.js#L148">Scene/Polyline.js 148</a>
</div>
</h4>
</div>
<div class="description">
Gets or sets the positions of the polyline.
</div>
<dl class="details">
<h5>Example:</h5>
<pre><code class="language-javascript">polyline.positions = Cesium.Cartesian3.fromDegreesArray([
0.0, 0.0,
10.0, 0.0,
0.0, 20.0
]);</code></pre>
</dl>
<div class="nameContainer">
<h4 class="name" id="show">
<a href="#show" class="doc-link"></a>
show<span class="type-signature"> : Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Polyline.js#L119">Scene/Polyline.js 119</a>
</div>
</h4>
</div>
<div class="description">
Determines if this polyline will be shown. Use this to hide or show a polyline, instead
of removing it and re-adding it to the collection.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="width">
<a href="#width" class="doc-link"></a>
width<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Polyline.js#L222">Scene/Polyline.js 222</a>
</div>
</h4>
</div>
<div class="description">
Gets or sets the width of the polyline.
</div>
<dl class="details">
</dl>
</article>
</section>
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