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100 lines
3.1 KiB
100 lines
3.1 KiB
2 years ago
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<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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[page:Loader] →
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<h1>[name]</h1>
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<p class="desc">A loader for loading a <em>.pdb</em> resource.<br>
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The <a href="http://en.wikipedia.org/wiki/Protein_Data_Bank_(file_format)">Protein Data Bank</a> file format is a textual file describing the three-dimensional structures of molecules.
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</p>
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<h2>代码示例</h2>
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<code>
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// instantiate a loader
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const loader = new PDBLoader();
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// load a PDB resource
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loader.load(
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// resource URL
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'models/pdb/caffeine.pdb',
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// called when the resource is loaded
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function ( pdb ) {
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const geometryAtoms = pdb.geometryAtoms;
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const geometryBonds = pdb.geometryBonds;
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const json = pdb.json;
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console.log( 'This molecule has ' + json.atoms.length + ' atoms' );
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},
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// called when loading is in progresses
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function ( xhr ) {
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console.log( ( xhr.loaded / xhr.total * 100 ) + '% loaded' );
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},
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// called when loading has errors
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function ( error ) {
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console.log( 'An error happened' );
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}
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);
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</code>
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<h2>例子</h2>
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<p>
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[example:webgl_loader_pdb]
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</p>
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<h2>Constructor</h2>
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<h3>[name]( [param:LoadingManager manager] )</h3>
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<p>
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[page:LoadingManager manager] — The [page:LoadingManager loadingManager] for the loader to use. Default is [page:LoadingManager THREE.DefaultLoadingManager].
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</p>
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<p>
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Creates a new [name].
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</p>
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<h2>Properties</h2>
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<p>See the base [page:Loader] class for common properties.</p>
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<h2>Methods</h2>
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<p>See the base [page:Loader] class for common methods.</p>
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<h3>[method:undefined load]( [param:String url], [param:Function onLoad], [param:Function onProgress], [param:Function onError] )</h3>
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<p>
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[page:String url] — A string containing the path/URL of the <em>.pdb</em> file.<br />
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[page:Function onLoad] — (optional) A function to be called after loading is successfully completed. The function receives the object having the following properties. [page:BufferGeometry geometryAtoms], [page:BufferGeometry geometryBonds] and the [page:Object JSON] structure.<br />
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[page:Function onProgress] — (optional) A function to be called while the loading is in progress. The argument will be the XMLHttpRequest instance, which contains [page:Integer total] and [page:Integer loaded] bytes.<br />
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[page:Function onError] — (optional) A function to be called if an error occurs during loading. The function receives the error as an argument.<br />
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</p>
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<p>
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Begin loading from url and call onLoad with the parsed response content.
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</p>
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<h3>[method:Object parse]( [param:String text] )</h3>
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<p>
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[page:String text] — The textual <em>pdb</em> structure to parse.
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</p>
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<p>
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Parse a <em>pdb</em> text and return a <em>JSON</em> structure.<br />
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</p>
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<h2>Source</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/loaders/PDBLoader.js examples/jsm/loaders/PDBLoader.js]
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</p>
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</body>
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</html>
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