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.
78 lines
2.4 KiB
78 lines
2.4 KiB
2 years ago
|
<!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:Object3D] → [page:Line] → [page:LineSegments] →
|
||
|
|
|
||
|
|
<h1>[name]</h1>
|
||
|
|
|
||
|
|
<p class="desc">
|
||
|
|
用于图形化地展示对象世界轴心对齐的包围盒的辅助对象。The actual bounding box is handled with [page:Box3], this is just a visual helper for debugging.
|
||
|
|
It can be automatically resized with the [page:BoxHelper.update] method when the object it's created from is transformed.
|
||
|
|
|
||
|
|
注意:要想能正常运行,目标对象必须包含 [page:BufferGeometry] ,
|
||
|
|
所以当目标对象是精灵 [page:Sprite Sprites] 时将不能正常运行.
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h2>代码示例</h2>
|
||
|
|
|
||
|
|
<code>
|
||
|
|
const sphere = new THREE.SphereGeometry();
|
||
|
|
const object = new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( 0xff0000 ) );
|
||
|
|
const box = new THREE.BoxHelper( object, 0xffff00 );
|
||
|
|
scene.add( box );
|
||
|
|
</code>
|
||
|
|
|
||
|
|
<h2>例子</h2>
|
||
|
|
|
||
|
|
<p>
|
||
|
|
[example:webgl_helpers WebGL / helpers]<br/>
|
||
|
|
[example:webgl_loader_nrrd WebGL / loader / nrrd]<br/>
|
||
|
|
[example:webgl_buffergeometry_drawrange WebGL / buffergeometry / drawrange]
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h2>构造函数</h2>
|
||
|
|
|
||
|
|
|
||
|
|
<h3>[name]( [param:Object3D object], [param:Color color] )</h3>
|
||
|
|
<p>
|
||
|
|
[page:Object3D object] -- (可选的) 被展示世界轴心对齐的包围盒的对象.<br />
|
||
|
|
[page:Color color] -- (可选的) 线框盒子的16进制颜色值. 默认为 0xffff00.<br /><br />
|
||
|
|
|
||
|
|
创建一个新的线框盒子包围指定的对象. 内部使用 [page:Box3.setFromObject]
|
||
|
|
方法来计算尺寸. 注意:此线框盒子将包围对象的所有子对象.
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h2>属性</h2>
|
||
|
|
<p>请到基类 [page:LineSegments] 页面查看公共属性.</p>
|
||
|
|
|
||
|
|
|
||
|
|
<h2>方法</h2>
|
||
|
|
<p>请到基类 [page:LineSegments] 页面查看公共方法.</p>
|
||
|
|
|
||
|
|
<h3>[method:undefined update]()</h3>
|
||
|
|
<p>
|
||
|
|
更新辅助对象的几何体，与目标对象尺寸
|
||
|
|
保持一致, 包围目标对象所有子对象. 请查看 [page:Box3.setFromObject].
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h3>[method:this setFromObject]( [param:Object3D object] )</h3>
|
||
|
|
<p>
|
||
|
|
[page:Object3D object] - 用于创建辅助对象的目标 [page:Object3D] 对象.<br /><br />
|
||
|
|
|
||
|
|
更新指定对象的线框盒子.
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h2>源码</h2>
|
||
|
|
|
||
|
|
<p>
|
||
|
|
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
|
||
|
|
</p>
|
||
|
|
</body>
|
||
|
|
</html>
|