mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-11-26 23:44:56 +01:00
106 lines
3.5 KiB
HTML
106 lines
3.5 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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<h1>[name]</h1>
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<div class="desc">
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This class stores data for an attribute associated with a [page:BufferGeometry]. See that page for details and a usage example. This class is used to store builtin attributes such as vertex position, normals, color, etc., but can also be used in your code to store custom attributes in a [page:BufferGeometry].
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</div>
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<h2>Constructor</h2>
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<h3>[name]([page:Array array], [page:Integer itemSize])</h3>
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<div>
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Instantiates this attibute with data from the associated buffer. The array can either be a regular Array or a Typed Array.
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itemSize gives the number of values of the array that should be associated with a particular vertex.
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</div>
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<h2>Properties</h2>
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<h3>[property:Array array]</h3>
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<div>
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Stores the data associated with this attribute; can be an Array or a Typed Array. This element should have <code>itemSize * numVertices</code> elements, where numVertices is the number of vertices in the associated [page:BufferGeometry geometry].
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</div>
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<h3>[property:Integer itemSize]</h3>
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<div>
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Records how many items of the array are associated with a particular vertex. For instance, if this
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attribute is storing a 3-component vector (such as a position, normal, or color), then itemSize should be 3.
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</div>
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<h3>[property:Integer length]</h3>
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<div>
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Gives the total number of elements in the array.
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</div>
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<h3>[property:Boolean needsUpdate]</h3>
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<div>
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Flag to indicate that this attribute has changed and should be re-send to the GPU. Set this to true when you modify the value of the array.
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</div>
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<h2>Methods</h2>
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<h3>[method:null copyAt] ( [page:Integer index1], attribute, [page:Integer index2] ) </h3>
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<div>
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Copies itemSize values in the array from the vertex at index2 to the vertex at index1.
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</div>
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<h3>[method:null set] ( [page:Array value] ) </h3>
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<div>
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Sets the associated array with values from the passed array.
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</div>
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<h3>[method:null setX]( index, x ) </h3>
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<div>
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Sets the value of the array at <code>index * itemSize</code> to x
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</div>
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<h3>[method:null setY]( index, y ) </h3>
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<div>
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Sets the value of the array at <code>index * itemSize + 1</code> to y
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</div>
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<h3>[method:null setZ]( index, z ) </h3>
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<div>
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Sets the value of the array at <code>index * itemSize + 2</code> to z
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</div>
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<h3>[method:null setXY]( index, x, y ) </h3>
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<div>
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Sets the value of the array at <code>index * itemSize</code> to x and
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sets the value of the array at <code>index * itemSize + 1</code> to y
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</div>
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<h3>[method:null setXYZ]( index, x, y, z ) </h3>
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<div>
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Sets the value of the array at <code>index * itemSize</code> to x,
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the value of the array at <code>index * itemSize + 1</code> to y, and
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the value of the array at <code>index * itemSize + 2</code> to z.
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</div>
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<h3>[method:null setXYZW]( index, x, y, z, w ) </h3>
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<div>
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Sets the value of the array at <code>index * itemSize</code> to x,
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the value of the array at <code>index * itemSize + 1</code> to y,
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the value of the array at <code>index * itemSize + 2</code> to z, and
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the value of the array at <code>index * itemSize + 3</code> to w.
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</div>
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<h3>[method:BufferAttribute clone]() </h3>
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<div>
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Copies this attribute.
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</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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