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<a href="../modules/_utils_vector2ext_.html">&quot;Utils/Vector2Ext&quot;</a>
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<a href="../modules/_utils_vector2ext_.es.html">es</a>
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<a href="_utils_vector2ext_.es.vector2ext.html">Vector2Ext</a>
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<h1>Class Vector2Ext</h1>
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<h3>Hierarchy</h3>
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<span class="target">Vector2Ext</span>
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<h2>Index</h2>
<section class="tsd-panel tsd-index-panel">
<div class="tsd-index-content">
<section class="tsd-index-section ">
<h3>Methods</h3>
<ul class="tsd-index-list">
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#cross" class="tsd-kind-icon">cross</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#halfvector" class="tsd-kind-icon">half<wbr>Vector</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#istriangleccw" class="tsd-kind-icon">is<wbr>TriangleCCW</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#normalize" class="tsd-kind-icon">normalize</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#perpendicular" class="tsd-kind-icon">perpendicular</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#round" class="tsd-kind-icon">round</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#transform" class="tsd-kind-icon">transform</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#transforma" class="tsd-kind-icon">transformA</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_utils_vector2ext_.es.vector2ext.html#transformr" class="tsd-kind-icon">transformR</a></li>
</ul>
</section>
</div>
</section>
</section>
<section class="tsd-panel-group tsd-member-group ">
<h2>Methods</h2>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="cross" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> cross</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">cross<span class="tsd-signature-symbol">(</span>u<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a>, v<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L22">src/Utils/Vector2Ext.ts:22</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>计算二维伪叉乘点(Perp(u) v)</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>u: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
</li>
<li>
<h5>v: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
<div class="tsd-comment tsd-typography">
</div>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="halfvector" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> half<wbr>Vector</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">half<wbr>Vector<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L13">src/Utils/Vector2Ext.ts:13</a></li>
</ul>
</aside>
<h4 class="tsd-returns-title">Returns <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="istriangleccw" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> is<wbr>TriangleCCW</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">is<wbr>TriangleCCW<span class="tsd-signature-symbol">(</span>a<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a>, center<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a>, c<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L9">src/Utils/Vector2Ext.ts:9</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>检查三角形是CCW还是CW</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>a: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
</li>
<li>
<h5>center: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
</li>
<li>
<h5>c: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
<div class="tsd-comment tsd-typography">
</div>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="normalize" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> normalize</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">normalize<span class="tsd-signature-symbol">(</span>vec<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L40">src/Utils/Vector2Ext.ts:40</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Vector2的临时解决方案
标准化把向量弄乱了</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>vec: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
<div class="tsd-comment tsd-typography">
</div>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="perpendicular" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> perpendicular</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">perpendicular<span class="tsd-signature-symbol">(</span>first<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a>, second<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L31">src/Utils/Vector2Ext.ts:31</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>返回与传入向量垂直的向量</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>first: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
</li>
<li>
<h5>second: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
<div class="tsd-comment tsd-typography">
</div>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="round" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> round</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">round<span class="tsd-signature-symbol">(</span>vec<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L86">src/Utils/Vector2Ext.ts:86</a></li>
</ul>
</aside>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>vec: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="transform" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> transform</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">transform<span class="tsd-signature-symbol">(</span>sourceArray<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">[]</span>, matrix<span class="tsd-signature-symbol">: </span><a href="_math_matrix2d_.es.matrix2d.html" class="tsd-signature-type">Matrix2D</a>, destinationArray<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L82">src/Utils/Vector2Ext.ts:82</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>通过指定的矩阵对Vector2的数组中的所有向量应用变换并将结果放到另一个数组中。</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>sourceArray: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">[]</span></h5>
</li>
<li>
<h5>matrix: <a href="_math_matrix2d_.es.matrix2d.html" class="tsd-signature-type">Matrix2D</a></h5>
</li>
<li>
<h5>destinationArray: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">[]</span></h5>
<div class="tsd-comment tsd-typography">
</div>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="transforma" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> transformA</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">transformA<span class="tsd-signature-symbol">(</span>sourceArray<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">[]</span>, sourceIndex<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span>, matrix<span class="tsd-signature-symbol">: </span><a href="_math_matrix2d_.es.matrix2d.html" class="tsd-signature-type">Matrix2D</a>, destinationArray<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">[]</span>, destinationIndex<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span>, length<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L58">src/Utils/Vector2Ext.ts:58</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>通过指定的矩阵对Vector2的数组中的向量应用变换并将结果放置在另一个数组中。</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>sourceArray: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">[]</span></h5>
</li>
<li>
<h5>sourceIndex: <span class="tsd-signature-type">number</span></h5>
</li>
<li>
<h5>matrix: <a href="_math_matrix2d_.es.matrix2d.html" class="tsd-signature-type">Matrix2D</a></h5>
</li>
<li>
<h5>destinationArray: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">[]</span></h5>
</li>
<li>
<h5>destinationIndex: <span class="tsd-signature-type">number</span></h5>
</li>
<li>
<h5>length: <span class="tsd-signature-type">number</span></h5>
<div class="tsd-comment tsd-typography">
</div>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static">
<a name="transformr" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> transformR</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
<li class="tsd-signature tsd-kind-icon">transformR<span class="tsd-signature-symbol">(</span>position<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a>, matrix<span class="tsd-signature-symbol">: </span><a href="_math_matrix2d_.es.matrix2d.html" class="tsd-signature-type">Matrix2D</a>, result<span class="tsd-signature-symbol">: </span><a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/esengine/egret-framework/blob/562bacb/source/src/Utils/Vector2Ext.ts#L69">src/Utils/Vector2Ext.ts:69</a></li>
</ul>
</aside>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>position: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
</li>
<li>
<h5>matrix: <a href="_math_matrix2d_.es.matrix2d.html" class="tsd-signature-type">Matrix2D</a></h5>
</li>
<li>
<h5>result: <a href="_math_vector2_.es.vector2.html" class="tsd-signature-type">Vector2</a></h5>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
</section>
</div>
<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
<nav class="tsd-navigation primary">
<ul>
<li class="globals ">
<a href="../globals.html"><em>Globals</em></a>
</li>
<li class="current tsd-kind-module">
<a href="../modules/_utils_vector2ext_.html">&quot;<wbr>Utils/<wbr>Vector2<wbr>Ext&quot;</a>
<ul>
<li class="current tsd-kind-namespace tsd-parent-kind-module">
<a href="../modules/_utils_vector2ext_.es.html">es</a>
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</ul>
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<a href="_utils_vector2ext_.es.vector2ext.html" class="tsd-kind-icon">Vector2<wbr>Ext</a>
<ul>
<li class=" tsd-kind-method tsd-parent-kind-class tsd-is-static">
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