wuhongjian
/
qd-changjing
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
qd-changjing/public/static/Build/Documentation/TerrainData.html

1083 lines
61 KiB
HTML
Raw Normal View History

first commit
2022-07-05 16:56:29 +08:00
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>TerrainData - Cesium Documentation</title>
<!--[if lt IE 9]>
<script src="javascript/html5.js"></script>
<![endif]-->
<link href="styles/jsdoc-default.css" rel="stylesheet">
<link href="styles/prism.css" rel="stylesheet">
</head>
<body>
<div id="main">
<h1 class="page-title">
<a href="index.html"><img src="Images/CesiumLogo.png" class="cesiumLogo"></a>
TerrainData
<div class="titleCenterer"></div>
</h1>
<section>
<header>
</header>
<article>
<div class="container-overview">
<div class="nameContainer">
<h4 class="name" id="TerrainData">
<a href="#TerrainData" class="doc-link"></a>
new Cesium.TerrainData<span class="signature">()</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/TerrainData.js#L14">Core/TerrainData.js 14</a>
</div>
</h4>
</div>
<div class="description">
Terrain data for a single tile. This type describes an
interface and is not intended to be instantiated directly.
</div>
<dl class="details">
<h5>See:</h5>
<ul class="see-list">
<li><a href="HeightmapTerrainData.html">HeightmapTerrainData</a></li>
<li><a href="QuantizedMeshTerrainData.html">QuantizedMeshTerrainData</a></li>
<li><a href="GoogleEarthEnterpriseTerrainData.html">GoogleEarthEnterpriseTerrainData</a></li>
</ul>
</dl>
</div>
<h3 class="subsection-title">Members</h3>
<div class="nameContainer">
<h4 class="name" id="credits">
<a href="#credits" class="doc-link"></a>
credits<span class="type-signature"> : Array.&lt;<a href="Credit.html">Credit</a>></span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/TerrainData.js#L24">Core/TerrainData.js 24</a>
</div>
</h4>
</div>
<div class="description">
An array of credits for this tile.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="waterMask">
<a href="#waterMask" class="doc-link"></a>
waterMask<span class="type-signature"> : Uint8Array|HTMLImageElement|HTMLCanvasElement</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/TerrainData.js#L34">Core/TerrainData.js 34</a>
</div>
</h4>
</div>
<div class="description">
The water mask included in this terrain data, if any. A water mask is a rectangular
Uint8Array or image where a value of 255 indicates water and a value of 0 indicates land.
Values in between 0 and 255 are allowed as well to smoothly blend between land and water.
</div>
<dl class="details">
</dl>
<h3 class="subsection-title">Methods</h3>
<div class="nameContainer">
<h4 class="name" id="interpolateHeight">
<a href="#interpolateHeight" class="doc-link"></a>
interpolateHeight<span class="signature">(rectangle, longitude, latitude)</span> &rarr; <span class="type-signature returnType">Number</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/TerrainData.js#L50">Core/TerrainData.js 50</a>
</div>
</h4>
</div>
<div class="description">
Computes the terrain height at a specified longitude and latitude.
</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>rectangle</code></td>
<td class="type">
<span class="param-type"><a href="Rectangle.html">Rectangle</a></span>
</td>
<td class="description last">
The rectangle covered by this terrain data.</td>
</tr>
<tr>
<td class="name"><code>longitude</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The longitude in radians.</td>
</tr>
<tr>
<td class="name"><code>latitude</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The latitude in radians.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
The terrain height at the specified position. If the position
is outside the rectangle, this method will extrapolate the height, which is likely to be wildly
incorrect for positions far outside the rectangle.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="isChildAvailable">
<a href="#isChildAvailable" class="doc-link"></a>
isChildAvailable<span class="signature">(thisX, thisY, childX, childY)</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/Core/TerrainData.js#L66">Core/TerrainData.js 66</a>
</div>
</h4>
</div>
<div class="description">
Determines if a given child tile is available, based on the
<code>TerrainData#childTileMask</code>. The given child tile coordinates are assumed
to be one of the four children of this tile. If non-child tile coordinates are
given, the availability of the southeast child tile is returned.
</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>thisX</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The tile X coordinate of this (the parent) tile.</td>
</tr>
<tr>
<td class="name"><code>thisY</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The tile Y coordinate of this (the parent) tile.</td>
</tr>
<tr>
<td class="name"><code>childX</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The tile X coordinate of the child tile to check for availability.</td>
</tr>
<tr>
<td class="name"><code>childY</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The tile Y coordinate of the child tile to check for availability.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
True if the child tile is available; otherwise, false.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="upsample">
<a href="#upsample" class="doc-link"></a>
upsample<span class="signature">(tilingScheme, thisX, thisY, thisLevel, descendantX, descendantY, descendantLevel)</span> &rarr; <span class="type-signature returnType">Promise.&lt;<a href="TerrainData.html">TerrainData</a>>|undefined</span>
<div class="source-link rightLinks">
<a href="https://github.com/CesiumGS/cesium/blob/1.91/Source/Core/TerrainData.js#L103">Core/TerrainData.js 103</a>
</div>
</h4>
</div>
<div class="description">
Upsamples this terrain data for use by a descendant tile.
</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>tilingScheme</code></td>
<td class="type">
<span class="param-type"><a href="TilingScheme.html">TilingScheme</a></span>
</td>
<td class="description last">
The tiling scheme of this terrain data.</td>
</tr>
<tr>
<td class="name"><code>thisX</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The X coordinate of this tile in the tiling scheme.</td>
</tr>
<tr>
<td class="name"><code>thisY</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The Y coordinate of this tile in the tiling scheme.</td>
</tr>
<tr>
<td class="name"><code>thisLevel</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The level of this tile in the tiling scheme.</td>
</tr>
<tr>
<td class="name"><code>descendantX</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The X coordinate within the tiling scheme of the descendant tile for which we are upsampling.</td>
</tr>
<tr>
<td class="name"><code>descendantY</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The Y coordinate within the tiling scheme of the descendant tile for which we are upsampling.</td>
</tr>
<tr>
<td class="name"><code>descendantLevel</code></td>
<td class="type">
<span class="param-type">Number</span>
</td>
<td class="description last">
The level within the tiling scheme of the descendant tile for which we are upsampling.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
A promise for upsampled terrain data for the descendant tile,
or undefined if too many asynchronous upsample operations are in progress and the request has been
deferred.
</div>
<dl class="details">
</dl>
<div class="nameContainer">
<h4 class="name" id="wasCreatedByUpsampling">
<a href="#wasCreatedByUpsampling" class="doc-link"></a>
wasCreatedByUpsampling<span class="signature">()</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/Core/TerrainData.js#L114">Core/TerrainData.js 114</a>
</div>
</h4>
</div>
<div class="description">
Gets a value indicating whether or not this terrain data was created by upsampling lower resolution
terrain data. If this value is false, the data was obtained from some other source, such
as by downloading it from a remote server. This method should return true for instances
returned from a call to <a href="TerrainData.html#upsample"><code>TerrainData#upsample</code></a>.
</div>
<h5>Returns:</h5>
<div class="param-desc">
True if this instance was created by upsampling; otherwise, false.
</div>
<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
</div>
</div>
<script>
if (window.frameElement) {
document.body.className = 'embedded';
var ele = document.createElement('a');
ele.className = 'popout';
ele.target = '_blank';
ele.href = window.location.href;
ele.title = 'Pop out';
document.getElementById('main').appendChild(ele);
}
// Set targets on external links. Sandcastle and GitHub shouldn't be embedded in any iframe.
Array.prototype.forEach.call(document.getElementsByTagName('a'), function(a) {
if (/^https?:/i.test(a.getAttribute('href'))) {
a.target='_blank';
}
});
</script>
<script src="javascript/prism.js"></script>
<script src="javascript/cesiumDoc.js"></script>
</body>
</html>