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88 lines
2.9 KiB
88 lines
2.9 KiB
2 years ago
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<!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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<h1>形状路径（[name]）</h1>
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<p class="desc">
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该类用于转换一系列的形状为一个[page:Path]数组，例如转换SVG中的Path为three.js中的Path（请参阅下方的example）。
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</p>
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<h2>例子</h2>
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<p>
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[example:webgl_geometry_extrude_shapes2 geometry / extrude / shapes2]
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</p>
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<h2>构造函数</h2>
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<h3>[name]( )</h3>
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<p>
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创建一个新的ShapePath。和[page:Path]不同，因为ShapePath被设计为在创建之后生成，所以没有点被传入到构造函数中。
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</p>
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<h2>属性</h2>
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<h3>[property:Array subPaths]</h3>
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<p>
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[page:Path]数组。
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</p>
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<h3>[property:Array currentPath]</h3>
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<p>
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当前将要被生成的路径。
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</p>
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<h2>方法</h2>
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<h3>[method:this moveTo]( [param:Float x], [param:Float y] )</h3>
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<p>
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创建一个新的[page:Path]，并在[page:Path]上调用[page:Path.moveTo]( x, y )。
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</p>
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<h3>[method:this lineTo]( [param:Float x], [param:Float y] )</h3>
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<p>这一方法从[page:ShapePath.currentPath currentPath]（当前路径）的偏移量创建一条到X和Y的线，并将偏移量更新为X和Y。
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</p>
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<h3>[method:this quadraticCurveTo]( [param:Float cpX], [param:Float cpY], [param:Float x], [param:Float y] )</h3>
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<p>这一方法从[page:ShapePath.currentPath currentPath]（当前路径）创建一条到X和Y的二次曲线，cpX和cpY作为控制点，
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并将[page:ShapePath.currentPath currentPath]的偏移量更新为x和y。
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</p>
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<h3>[method:this bezierCurveTo]( [param:Float cp1X], [param:Float cp1Y], [param:Float cp2X], [param:Float cp2Y], [param:Float x], [param:Float y] )</h3>
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<p>
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这一方法从[page:ShapePath.currentPath currentPath]（当前路径）的偏移量创建一条到X和Y的贝塞尔曲线，
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cp1X、cp1Y和cp2X、cp2Y为控制点，并将[page:ShapePath.currentPath currentPath]的偏移量更新为x和y。
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</p>
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<h3>[method:this splineThru] ( [param:Array points] ) </h3>
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<p>points - 一个[page:Vector2]数组。</p>
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<p>
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连接一个新的[page:SplineCurve]（样条曲线）到[page:ShapePath.currentPath currentPath]（当前路径）。</p>
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<h3>[method:Array toShapes]( [param:Boolean isCCW] )</h3>
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<p>
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isCCW -- 更改实体形状和孔洞的生成方式。
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</p>
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<p>
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将[page:ShapePath.subPaths subPaths]数组转换为到Shapes数组。默认情况下，实体形状按照顺时针（CW）来定义，孔洞按照逆时针（CCW）来定义。
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如果isCCW被设置为true，则孔洞和实体形状的定义将被反转。
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<br/>
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</p>
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<h2>源代码</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/src/extras/core/Path.js src/extras/core/Path.js]
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</p>
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</body>
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</html>
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