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<title>SimplePolylineGeometry - Cesium Documentation</title>
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<h1 class="page-title">
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SimplePolylineGeometry
<div class="titleCenterer"></div>
</h1>
<section>
<header>
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<article>
<div class="container-overview">
<div class="nameContainer">
<h4 class="name" id="SimplePolylineGeometry">
<a href="#SimplePolylineGeometry" class="doc-link"></a>
new Cesium.SimplePolylineGeometry<span class="signature">(options)</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/SimplePolylineGeometry.js#L89">Core/SimplePolylineGeometry.js 89</a>
</div>
</h4>
</div>
<div class="description">
A description of a polyline modeled as a line strip; the first two positions define a line segment,
and each additional position defines a line segment from the previous position.
</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>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">
An array of <a href="Cartesian3.html"><code>Cartesian3</code></a> defining the positions in the polyline as a line strip.</td>
</tr>
<tr>
<td class="name"><code>colors</code></td>
<td class="type">
<span class="param-type">Array.&lt;<a href="Color.html">Color</a>></span>
</td>
<td class="default">
</td>
<td class="description last">
<span class="optional">optional</span>
An Array of <a href="Color.html"><code>Color</code></a> defining the per vertex or per segment colors.</td>
</tr>
<tr>
<td class="name"><code>colorsPerVertex</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>
A boolean that determines whether the colors will be flat across each segment of the line or interpolated across the vertices.</td>
</tr>
<tr>
<td class="name"><code>arcType</code></td>
<td class="type">
<span class="param-type"><a href="global.html#ArcType">ArcType</a></span>
</td>
<td class="default">
<code class="language-javascript">ArcType.GEODESIC</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The type of line the polyline segments must follow.</td>
</tr>
<tr>
<td class="name"><code>granularity</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="default">
<code class="language-javascript">CesiumMath.RADIANS_PER_DEGREE</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The distance, in radians, between each latitude and longitude if options.arcType is not ArcType.NONE. Determines the number of positions in the buffer.</td>
</tr>
<tr>
<td class="name"><code>ellipsoid</code></td>
<td class="type">
<span class="param-type"><a href="Ellipsoid.html">Ellipsoid</a></span>
</td>
<td class="default">
<code class="language-javascript">Ellipsoid.WGS84</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The ellipsoid to be used as a reference.</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<h5>Throws:</h5>
<ul>
<li>
<div class="param-desc">
<span class="param-type"><a href="DeveloperError.html">DeveloperError</a></span>
: At least two positions are required.
</div>
</li>
<li>
<div class="param-desc">
<span class="param-type"><a href="DeveloperError.html">DeveloperError</a></span>
: colors has an invalid length.
</div>
</li>
</ul>
<dl class="details">
<h5>Example:</h5>
<pre><code class="language-javascript">// A polyline with two connected line segments
const polyline = new Cesium.SimplePolylineGeometry({
positions : Cesium.Cartesian3.fromDegreesArray([
0.0, 0.0,
5.0, 0.0,
5.0, 5.0
])
});
const geometry = Cesium.SimplePolylineGeometry.createGeometry(polyline);</code></pre>
<h5>See:</h5>
<ul class="see-list">
<li>SimplePolylineGeometry#createGeometry</li>
</ul>
</dl>
</div>
<h3 class="subsection-title">Members</h3>
<div class="nameContainer">
<h4 class="name" id="packedLength">
<a href="#packedLength" class="doc-link"></a>
packedLength<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/SimplePolylineGeometry.js#L127">Core/SimplePolylineGeometry.js 127</a>
</div>
</h4>
</div>
<div class="description">
The number of elements used to pack the object into an array.
</div>
<dl class="details">
</dl>
<h3 class="subsection-title">Methods</h3>
<div class="nameContainer">
<h4 class="name" id=".createGeometry">
<a href="#.createGeometry" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> Cesium.SimplePolylineGeometry.createGeometry<span class="signature">(simplePolylineGeometry)</span> &rarr; <span class="type-signature returnType"><a href="Geometry.html">Geometry</a>|undefined</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/SimplePolylineGeometry.js#L256">Core/SimplePolylineGeometry.js 256</a>
</div>
</h4>
</div>
<div class="description">
Computes the geometric representation of a simple polyline, including its vertices, indices, and a bounding sphere.
</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>simplePolylineGeometry</code></td>
<td class="type">
<span class="param-type"><a href="SimplePolylineGeometry.html">SimplePolylineGeometry</a></span>
</td>
<td class="description last">
A description of the polyline.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The computed vertices and indices.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id=".pack">
<a href="#.pack" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> Cesium.SimplePolylineGeometry.pack<span class="signature">(value, array, <span class="optional">startingIndex</span>)</span> &rarr; <span class="type-signature returnType">Array.&lt;Number></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/SimplePolylineGeometry.js#L139">Core/SimplePolylineGeometry.js 139</a>
</div>
</h4>
</div>
<div class="description">
Stores the provided instance into the provided array.
</div>
<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>value</code></td>
<td class="type">
<span class="param-type"><a href="SimplePolylineGeometry.html">SimplePolylineGeometry</a></span>
</td>
<td class="default">
</td>
<td class="description last">
The value to pack.</td>
</tr>
<tr>
<td class="name"><code>array</code></td>
<td class="type">
<span class="param-type">Array.&lt;Number></span>
</td>
<td class="default">
</td>
<td class="description last">
The array to pack into.</td>
</tr>
<tr>
<td class="name"><code>startingIndex</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="default">
<code class="language-javascript">0</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The index into the array at which to start packing the elements.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The array that was packed into
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id=".unpack">
<a href="#.unpack" class="doc-link"></a>
<span class="type-signature attribute-static">static</span> Cesium.SimplePolylineGeometry.unpack<span class="signature">(array, <span class="optional">startingIndex</span>, <span class="optional">result</span>)</span> &rarr; <span class="type-signature returnType"><a href="SimplePolylineGeometry.html">SimplePolylineGeometry</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/SimplePolylineGeometry.js#L187">Core/SimplePolylineGeometry.js 187</a>
</div>
</h4>
</div>
<div class="description">
Retrieves an instance from a packed array.
</div>
<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>array</code></td>
<td class="type">
<span class="param-type">Array.&lt;Number></span>
</td>
<td class="default">
</td>
<td class="description last">
The packed array.</td>
</tr>
<tr>
<td class="name"><code>startingIndex</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="default">
<code class="language-javascript">0</code>
</td>
<td class="description last">
<span class="optional">optional</span>
The starting index of the element to be unpacked.</td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<span class="param-type"><a href="SimplePolylineGeometry.html">SimplePolylineGeometry</a></span>
</td>
<td class="default">
</td>
<td class="description last">
<span class="optional">optional</span>
The object into which to store the result.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The modified result parameter or a new SimplePolylineGeometry instance if one was not provided.
</div>
<dl class="details">
</dl>
</article>
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