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708 lines
57 KiB
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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>ShowGeometryInstanceAttribute - 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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ShowGeometryInstanceAttribute
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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="ShowGeometryInstanceAttribute">
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<a href="#ShowGeometryInstanceAttribute" class="doc-link"></a>
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new Cesium.ShowGeometryInstanceAttribute<span class="signature">(<span class="optional">show</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/Core/ShowGeometryInstanceAttribute.js#L33">Core/ShowGeometryInstanceAttribute.js 33</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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Value and type information for per-instance geometry attribute that determines if the geometry instance will be shown.
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</div>
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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>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 geometry instance will be shown.</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">const instance = new Cesium.GeometryInstance({
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geometry : new Cesium.BoxGeometry({
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vertexFormat : Cesium.VertexFormat.POSITION_AND_NORMAL,
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minimum : new Cesium.Cartesian3(-250000.0, -250000.0, -250000.0),
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maximum : new Cesium.Cartesian3(250000.0, 250000.0, 250000.0)
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}),
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modelMatrix : Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
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Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883)), new Cesium.Cartesian3(0.0, 0.0, 1000000.0), new Cesium.Matrix4()),
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id : 'box',
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attributes : {
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show : new Cesium.ShowGeometryInstanceAttribute(false)
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}
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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="GeometryInstance.html">GeometryInstance</a></li>
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<li><a href="GeometryInstanceAttribute.html">GeometryInstanceAttribute</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="componentDatatype">
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<a href="#componentDatatype" class="doc-link"></a>
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<span class="type-signature attribute-readonly">readonly</span> componentDatatype<span class="type-signature"> : <a href="global.html#ComponentDatatype">ComponentDatatype</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/Core/ShowGeometryInstanceAttribute.js#L58">Core/ShowGeometryInstanceAttribute.js 58</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 datatype of each component in the attribute, e.g., individual elements in
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<a href="ColorGeometryInstanceAttribute.html#value"><code>ColorGeometryInstanceAttribute#value</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="global.html#ComponentDatatype#.UNSIGNED_BYTE"><code>ComponentDatatype.UNSIGNED_BYTE</code></a></code>
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</dl>
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<div class="nameContainer">
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<h4 class="name" id="componentsPerAttribute">
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<a href="#componentsPerAttribute" class="doc-link"></a>
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<span class="type-signature attribute-readonly">readonly</span> componentsPerAttribute<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/Core/ShowGeometryInstanceAttribute.js#L74">Core/ShowGeometryInstanceAttribute.js 74</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 number of components in the attributes, i.e., <a href="ColorGeometryInstanceAttribute.html#value"><code>ColorGeometryInstanceAttribute#value</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">1</code>
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</dl>
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<div class="nameContainer">
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<h4 class="name" id="normalize">
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<a href="#normalize" class="doc-link"></a>
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<span class="type-signature attribute-readonly">readonly</span> normalize<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/Core/ShowGeometryInstanceAttribute.js#L92">Core/ShowGeometryInstanceAttribute.js 92</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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When <code>true</code> and <code>componentDatatype</code> is an integer format,
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indicate that the components should be mapped to the range [0, 1] (unsigned)
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or [-1, 1] (signed) when they are accessed as floating-point for rendering.
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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">true</code>
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</dl>
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<div class="nameContainer">
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<h4 class="name" id="value">
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<a href="#value" class="doc-link"></a>
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value<span class="type-signature"> : Uint8Array</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/Core/ShowGeometryInstanceAttribute.js#L43">Core/ShowGeometryInstanceAttribute.js 43</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 values for the attributes stored in a typed array.
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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">[1.0]</code>
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</dl>
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<h3 class="subsection-title">Methods</h3>
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<div class="nameContainer">
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<h4 class="name" id=".toValue">
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<a href="#.toValue" class="doc-link"></a>
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<span class="type-signature attribute-static">static</span> Cesium.ShowGeometryInstanceAttribute.toValue<span class="signature">(show, <span class="optional">result</span>)</span> → <span class="type-signature returnType">Uint8Array</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/Core/ShowGeometryInstanceAttribute.js#L110">Core/ShowGeometryInstanceAttribute.js 110</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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Converts a boolean show to a typed array that can be used to assign a show attribute.
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</div>
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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>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="description last">
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The show value.</td>
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</tr>
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<tr>
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<td class="name"><code>result</code></td>
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<td class="type">
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<span class="param-type">Uint8Array</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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The array to store the result in, if undefined a new instance will be created.</td>
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</tr>
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</tbody>
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</table>
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<h5>Returns:</h5>
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<div class="param-desc">
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The modified result parameter or a new instance if result was undefined.
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</div>
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<dl class="details">
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<h5>Example:</h5>
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<pre><code class="language-javascript">const attributes = primitive.getGeometryInstanceAttributes('an id');
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attributes.show = Cesium.ShowGeometryInstanceAttribute.toValue(true, attributes.show);</code></pre>
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</dl>
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</article>
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