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91 lines
2.8 KiB
91 lines
2.8 KiB
<!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">
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一个用于加载JSON格式的字体的类。。返回font, 返回值是表示字体的[page:Shape Shape]类型的数组。
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其内部使用[page:FileLoader]来加载文件。 <br /><br />
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你可以使用[link:https://gero3.github.io/facetype.js/ facetype.js]来在线转换字体。
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</p>
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<h2>代码示例</h2>
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<code>
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const loader = new FontLoader();
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const font = loader.load(
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// 资源URL
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'fonts/helvetiker_bold.typeface.json',
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// onLoad回调
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function ( font ) {
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// do something with the font
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console.log( font );
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},
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// onProgress回调
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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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// onError回调
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function ( err ) {
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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_geometry_text_shapes geometry / text / shapes ]<br/>
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[example:webgl_geometry_text geometry / text ]
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</p>
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<h2>构造函数</h2>
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<h3>[name]( [param:LoadingManager manager] )</h3>
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<p>
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[page:LoadingManager manager] — 加载器所使用的[page:LoadingManager loadingManager]。默认值为[page:LoadingManager THREE.DefaultLoadingManager].<br /><br />
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创建一个新的[name].
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</p>
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<h2>属性</h2>
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<p>共有属性请参见其基类[page:Loader]。</p>
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<h2>方法</h2>
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<p>共有方法请参见其基类[page:Loader]。</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] — 文件的URL或者路径，也可以为
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[link:https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs Data URI]。<br />
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[page:Function onLoad] — 将在加载完成时调用。参数是将要被加载的font。<br />
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[page:Function onProgress] — 将在加载过程中调用。参数是包含[page:Integer total]和[page:Integer loaded]字节的XMLHttpRequest实例。如果server没有设置header的Content-Length，则[page:Integer total]值为0。<br />
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[page:Function onError] — 将在加载错误时调用。<br /><br />
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开始加载url，并将加载的font传递给onLoad。
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</p>
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<h3>[method:Font parse]( [param:Object json] )</h3>
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<p>
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[page:Object json] — 用于解析的<em>JSON</em>>格式的对象。<br /><br />
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解析一个<em>JSON</em>>格式的对象，并返回一个font。
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</p>
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<h2>源</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/loaders/FontLoader.js examples/jsm/loaders/FontLoader.js]
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</p>
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</body>
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</html>
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