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50 KiB
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546 lines
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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>createTaskProcessorWorker - 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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createTaskProcessorWorker
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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="createTaskProcessorWorker">
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<a href="#createTaskProcessorWorker" class="doc-link"></a>
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createTaskProcessorWorker<span class="signature">(workerFunction)</span> → <span class="type-signature returnType"><a href="createTaskProcessorWorker.html#~TaskProcessorWorkerFunction">createTaskProcessorWorker~TaskProcessorWorkerFunction</a></span>
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<div class="source-link rightLinks">
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<a href="https://github.com/AnalyticalGraphicsInc/cesium/blob/1.58/Source/Workers/createTaskProcessorWorker.js#L52">Workers/createTaskProcessorWorker.js 52</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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Creates an adapter function to allow a calculation function to operate as a Web Worker,
paired with TaskProcessor, to receive tasks and return results.
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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>workerFunction</code></td>
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<td class="type">
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<span class="param-type"><a href="createTaskProcessorWorker.html#~WorkerFunction">createTaskProcessorWorker~WorkerFunction</a></span>
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</td>
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<td class="description last">
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The calculation function,
which takes parameters and returns a result.</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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A function that adapts the
calculation function to work as a Web Worker onmessage listener with TaskProcessor.
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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">function doCalculation(parameters, transferableObjects) {
// calculate some result using the inputs in parameters
return result;
}
return Cesium.createTaskProcessorWorker(doCalculation);
// the resulting function is compatible with TaskProcessor</code></pre>
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<h5>See:</h5>
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<ul class="see-list">
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<li><a href="TaskProcessor.html">TaskProcessor</a></li>
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<li><a href="http://www.w3.org/TR/workers/">Web Workers</a></li>
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<li><a href="http://www.w3.org/TR/html5/common-dom-interfaces.html#transferable-objects">Transferable objects</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">Type Definitions</h3>
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<div class="nameContainer">
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<h4 class="name" id="~TaskProcessorWorkerFunction">
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<a href="#~TaskProcessorWorkerFunction" class="doc-link"></a>
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TaskProcessorWorkerFunction<span class="signature">(event)</span>
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<div class="source-link rightLinks">
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<a href="https://github.com/AnalyticalGraphicsInc/cesium/blob/1.58/Source/Workers/createTaskProcessorWorker.js#L127">Workers/createTaskProcessorWorker.js 127</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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A Web Worker message event handler function that handles the interaction with TaskProcessor,
specifically, task ID management and posting a response message containing the result.
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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>event</code></td>
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<td class="type">
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<span class="param-type">Object</span>
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</td>
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<td class="description last">
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The onmessage event object.</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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</dl>
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<div class="nameContainer">
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<h4 class="name" id="~WorkerFunction">
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<a href="#~WorkerFunction" class="doc-link"></a>
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WorkerFunction<span class="signature">(parameters, transferableObjects)</span> → <span class="type-signature returnType">Object</span>
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<div class="source-link rightLinks">
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<a href="https://github.com/AnalyticalGraphicsInc/cesium/blob/1.58/Source/Workers/createTaskProcessorWorker.js#L104">Workers/createTaskProcessorWorker.js 104</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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A function that performs a calculation in a Web Worker.
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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>parameters</code></td>
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<td class="type">
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<span class="param-type">Object</span>
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</td>
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<td class="description last">
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Parameters to the calculation.</td>
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</tr>
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<tr>
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<td class="name"><code>transferableObjects</code></td>
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<td class="type">
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<span class="param-type">Array</span>
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</td>
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<td class="description last">
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An array that should be filled with references to objects inside
the result that should be transferred back to the main document instead of copied.</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 result of the calculation.
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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">function calculate(parameters, transferableObjects) {
// perform whatever calculation is necessary.
var typedArray = new Float32Array(0);
// typed arrays are transferable
transferableObjects.push(typedArray)
return {
typedArray : typedArray
};
}</code></pre>
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</dl>
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</article>
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</section>
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<footer>
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.6.2</a>
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</footer>
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<div class="nav">
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<div class="menu">
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