mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-12-26 12:53:50 +01:00
61 lines
1.7 KiB
HTML
61 lines
1.7 KiB
HTML
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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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<script src="../../../list.js"></script>
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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:Line] →
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<h1>[name]</h1>
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<div class="desc">Renders [page:ArrowHelper arrows] to visualize an object's [page:Face3 face] normals. Requires that the object's geometry be an instance of [page:Geometry] (does not work with [page:BufferGeometry]), and that face normals have been specified on all [page:Face3 faces] or calculated with [page:Geometry.computeFaceNormals computeFaceNormals].</div>
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<h2>Example</h2>
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<code>
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geometry = new THREE.BoxGeometry( 10, 10, 10, 2, 2, 2 );
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material = new THREE.MeshBasicMaterial( { color: 0xff0000 } );
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object = new THREE.Mesh( geometry, material );
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edges = new THREE.FaceNormalsHelper( object, 2, 0x00ff00, 1 );
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scene.add( object );
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scene.add( edges );
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</code>
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[example:webgl_helpers Example using various helpers]
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<h2>Constructor</h2>
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<h3>[name]( [page:Object3D object], [page:Number size], [page:Color color], [page:Number linewidth] )</h3>
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<div>object -- object for which to render face normals
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size -- size (length) of the arrows
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color -- color of the arrows
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linewidth -- width of the arrow lines
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</div>
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<h2>Properties</h2>
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<h3>[property:Object3D object]</h3>
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<div>
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The attached object
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</div>
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<h2>Methods</h2>
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<h3>[method:null update]()</h3>
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<div>Updates the face normal preview based on movement of the object.</div>
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<h2>Source</h2>
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[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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</body>
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</html>
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