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2022-07-05 16:56:29 +08:00
<!DOCTYPE html>
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<title>Cesium3DTileContent - Cesium Documentation</title>
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<h1 class="page-title">
<a href="index.html"><img src="Images/CesiumLogo.png" class="cesiumLogo"></a>
Cesium3DTileContent
<div class="titleCenterer"></div>
</h1>
<section>
<header>
</header>
<article>
<div class="container-overview">
<div class="nameContainer">
<h4 class="name" id="Cesium3DTileContent">
<a href="#Cesium3DTileContent" class="doc-link"></a>
new Cesium.Cesium3DTileContent<span class="signature">()</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L16">Scene/Cesium3DTileContent.js 16</a>
</div>
</h4>
</div>
<div class="description">
The content of a tile in a <a href="Cesium3DTileset.html"><code>Cesium3DTileset</code></a>.
<p>
Derived classes of this interface provide access to individual features in the tile.
Access derived objects through <a href="Cesium3DTile.html#content"><code>Cesium3DTile#content</code></a>.
</p>
<p>
This type describes an interface and is not intended to be instantiated directly.
</p>
</div>
<dl class="details">
</dl>
</div>
<h3 class="subsection-title">Members</h3>
<div class="nameContainer">
<h4 class="name" id="batchTableByteLength">
<a href="#batchTableByteLength" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> batchTableByteLength<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L122">Scene/Cesium3DTileContent.js 122</a>
</div>
</h4>
</div>
<div class="description">
Gets the amount of memory used by the batch table textures, in bytes.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="featuresLength">
<a href="#featuresLength" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> featuresLength<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L41">Scene/Cesium3DTileContent.js 41</a>
</div>
</h4>
</div>
<div class="description">
Gets the number of features in the tile.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="geometryByteLength">
<a href="#geometryByteLength" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> geometryByteLength<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L92">Scene/Cesium3DTileContent.js 92</a>
</div>
</h4>
</div>
<div class="description">
Gets the tile's geometry memory in bytes.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="innerContents">
<a href="#innerContents" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> innerContents<span class="type-signature"> : Array</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L139">Scene/Cesium3DTileContent.js 139</a>
</div>
</h4>
</div>
<div class="description">
Gets the array of <a href="Cesium3DTileContent.html"><code>Cesium3DTileContent</code></a> objects for contents that contain other contents, such as composite tiles. The inner contents may in turn have inner contents, such as a composite tile that contains a composite tile.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="https://github.com/CesiumGS/3d-tiles/tree/main/specification/TileFormats/Composite">Composite specification</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id="pointsLength">
<a href="#pointsLength" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> pointsLength<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L62">Scene/Cesium3DTileContent.js 62</a>
</div>
</h4>
</div>
<div class="description">
Gets the number of points in the tile.
<p>
Only applicable for tiles with Point Cloud content. This is different than <a href="Cesium3DTileContent.html#featuresLength"><code>Cesium3DTileContent#featuresLength</code></a> which
equals the number of groups of points as distinguished by the <code>BATCH_ID</code> feature table semantic.
</p>
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="https://github.com/CesiumGS/3d-tiles/tree/main/specification/TileFormats/PointCloud#batched-points">https://github.com/CesiumGS/3d-tiles/tree/main/specification/TileFormats/PointCloud#batched-points</a></li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id="readyPromise">
<a href="#readyPromise" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> readyPromise<span class="type-signature"> : Promise.&lt;<a href="Cesium3DTileContent.html">Cesium3DTileContent</a>></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L154">Scene/Cesium3DTileContent.js 154</a>
</div>
</h4>
</div>
<div class="description">
Gets the promise that will be resolved when the tile's content is ready to render.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="texturesByteLength">
<a href="#texturesByteLength" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> texturesByteLength<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L107">Scene/Cesium3DTileContent.js 107</a>
</div>
</h4>
</div>
<div class="description">
Gets the tile's texture memory in bytes.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="tile">
<a href="#tile" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> tile<span class="type-signature"> : <a href="Cesium3DTile.html">Cesium3DTile</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L184">Scene/Cesium3DTileContent.js 184</a>
</div>
</h4>
</div>
<div class="description">
Gets the tile containing this content.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="tileset">
<a href="#tileset" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> tileset<span class="type-signature"> : <a href="Cesium3DTileset.html">Cesium3DTileset</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L169">Scene/Cesium3DTileContent.js 169</a>
</div>
</h4>
</div>
<div class="description">
Gets the tileset for this tile.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="trianglesLength">
<a href="#trianglesLength" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> trianglesLength<span class="type-signature"> : Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L77">Scene/Cesium3DTileContent.js 77</a>
</div>
</h4>
</div>
<div class="description">
Gets the number of triangles in the tile.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="url">
<a href="#url" class="doc-link"></a>
<span class="type-signature attribute-readonly">readonly</span> url<span class="type-signature"> : String</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L198">Scene/Cesium3DTileContent.js 198</a>
</div>
</h4>
</div>
<div class="description">
Gets the url of the tile's content.
</div>
<dl class="details">
</dl>
<h3 class="subsection-title">Methods</h3>
<div class="nameContainer">
<h4 class="name" id="getFeature">
<a href="#getFeature" class="doc-link"></a>
getFeature<span class="signature">(batchId)</span> &rarr; <span class="type-signature returnType"><a href="Cesium3DTileFeature.html">Cesium3DTileFeature</a></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L275">Scene/Cesium3DTileContent.js 275</a>
</div>
</h4>
</div>
<div class="description">
Returns the <a href="Cesium3DTileFeature.html"><code>Cesium3DTileFeature</code></a> object for the feature with the
given <code>batchId</code>. This object is used to get and modify the
feature's properties.
<p>
Features in a tile are ordered by <code>batchId</code>, an index used to retrieve their metadata from the batch table.
</p>
</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>batchId</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The batchId for the feature.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The corresponding <a href="Cesium3DTileFeature.html"><code>Cesium3DTileFeature</code></a> object.
</div>
<h5>Throws:</h5>
<ul>
<li>
<div class="param-desc">
<span class="param-type"><a href="DeveloperError.html">DeveloperError</a></span>
: batchId must be between zero and <a href="Cesium3DTileContent.html#featuresLength"><code>Cesium3DTileContent#featuresLength</code></a> - 1.
</div>
</li>
</ul>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="https://github.com/CesiumGS/3d-tiles/tree/main/specification/TileFormats/BatchTable">https://github.com/CesiumGS/3d-tiles/tree/main/specification/TileFormats/BatchTable</a>.</li>
</ul>
</dl>
<div class="nameContainer">
<h4 class="name" id="hasProperty">
<a href="#hasProperty" class="doc-link"></a>
hasProperty<span class="signature">(batchId, name)</span> &rarr; <span class="type-signature returnType">Boolean</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Scene/Cesium3DTileContent.js#L256">Scene/Cesium3DTileContent.js 256</a>
</div>
</h4>
</div>
<div class="description">
Returns whether the feature has this property.
</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>batchId</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The batchId for the feature.</td>
</tr>
<tr>
<td class="name"><code>name</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">
The case-sensitive name of the property.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
<code>true</code> if the feature has this property; otherwise, <code>false</code>.
</div>
<dl class="details">
</dl>
</article>
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