You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
112 lines
3.3 KiB
112 lines
3.3 KiB
<!DOCTYPE html>
|
|
<html lang="zh">
|
|
<head>
|
|
<meta charset="utf-8" />
|
|
<base href="../../../" />
|
|
<script src="page.js"></script>
|
|
<link type="text/css" rel="stylesheet" href="page.css" />
|
|
</head>
|
|
<body>
|
|
[page:Loader] →
|
|
|
|
<h1>[name]</h1>
|
|
|
|
<p class="desc">
|
|
A loader for the PCD (Point Cloud Data) file format. [name] supports ASCII and (compressed) binary files as well as the following PCD fields:
|
|
<ul>
|
|
<li>x y z</li>
|
|
<li>rgb</li>
|
|
<li>normal_x normal_y normal_z</li>
|
|
<li>intensity</li>
|
|
<li>label</li>
|
|
</ul>
|
|
</p>
|
|
|
|
<h2>代码示例</h2>
|
|
|
|
<code>
|
|
|
|
// instantiate a loader
|
|
const loader = new PCDLoader();
|
|
|
|
// load a resource
|
|
loader.load(
|
|
// resource URL
|
|
'pointcloud.pcd',
|
|
// called when the resource is loaded
|
|
function ( points ) {
|
|
|
|
scene.add( points );
|
|
|
|
},
|
|
// called when loading is in progresses
|
|
function ( xhr ) {
|
|
|
|
console.log( ( xhr.loaded / xhr.total * 100 ) + '% loaded' );
|
|
|
|
},
|
|
// called when loading has errors
|
|
function ( error ) {
|
|
|
|
console.log( 'An error happened' );
|
|
|
|
}
|
|
);
|
|
</code>
|
|
|
|
<h2>例子</h2>
|
|
<p>
|
|
[example:webgl_loader_pcd]
|
|
</p>
|
|
|
|
<h2>构造器</h2>
|
|
|
|
<h3>[name]( [param:LoadingManager manager] )</h3>
|
|
<p>
|
|
[page:LoadingManager manager] — 加载器使用的 [page:LoadingManager loadingManager] (加载管理器)，默认值是 [page:LoadingManager THREE.DefaultLoadingManager]。
|
|
</p>
|
|
<p>
|
|
创建一个新的 [name]。
|
|
</p>
|
|
|
|
<h2>属性</h2>
|
|
<p>共有属性请参见其基类 [page:Loader]。</p>
|
|
|
|
<h3>[page:Boolean littleEndian]</h3>
|
|
<p>
|
|
在加载器内部调用 DataView.prototype.getFloat32() 时，表示这个32位浮点数是否以 小字节序(little-endian) 格式存储，默认值为 true。
|
|
</p>
|
|
|
|
<h2>方法</h2>
|
|
<p>共有方法请参考其基类 [page:Loader]。</p>
|
|
|
|
<h3>[method:undefined load]( [param:String url], [param:Function onLoad], [param:Function onProgress], [param:Function onError] )</h3>
|
|
<p>
|
|
[page:String url] — 一个包含有 <em>.pcd</em> 文件的路径或URL的字符串。<br />
|
|
[page:Function onLoad] — (可选参数) 当加载过程成功完成后将被调用的函数。 其参数是一个 [page:Object3D] 实例。<br />
|
|
[page:Function onProgress] — (可选参数) 加载正在进行过程中会被调用的函数。 其参数是一个 XMLHttpRequest 实例，包含有总字节数 [page:Integer total] 和已加载的字节数 [page:Integer loaded]。<br />
|
|
[page:Function onError] — (可选参数) 若在加载过程中发生错误，将被调用的函数。 其参数是一个 error 实例。<br />
|
|
</p>
|
|
<p>
|
|
开始从路径或url加载，并使用解析过的响应内容调用回调函数。
|
|
</p>
|
|
|
|
<h3>[method:Object3D parse]( [param:Arraybuffer data],[param:String url] )</h3>
|
|
<p>
|
|
[page:Arraybuffer data] — 要分析的二进制数据结构
|
|
</p>
|
|
<p>
|
|
[page:String url] — 文件名或文件url。
|
|
</p>
|
|
<p>
|
|
分析 <em>pcd</em> 二进制结构并返回一个 [page:Object3D] 实例。<br />
|
|
该 Object3D 实例实际类型为 [page:Points]，由一个 [page:BufferGeometry] 实例和一个 [page:PointsMaterial] 实例作为参数构造而成。
|
|
</p>
|
|
|
|
<h2>源码</h2>
|
|
|
|
<p>
|
|
[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/loaders/PCDLoader.js examples/jsm/loaders/PCDLoader.js]
|
|
</p>
|
|
</body>
|
|
</html>
|
|
|