starling-framework
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A fast, productive library for 2D cross-platform development.
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<h1>Class RectangleUtil</h1>
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<p>A utility class containing methods related to the Rectangle class.</p>
</div>
</div>
</section>
<section class="tsd-panel tsd-hierarchy">
<h3>Hierarchy</h3>
<ul class="tsd-hierarchy">
<li>
<span class="target">RectangleUtil</span>
</li>
</ul>
</section>
<section class="tsd-panel-group tsd-index-group">
<h2>Index</h2>
<section class="tsd-panel tsd-index-panel">
<div class="tsd-index-content">
<section class="tsd-index-section tsd-is-external">
<h3>Methods</h3>
<ul class="tsd-index-list">
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#compare" class="tsd-kind-icon">compare</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#extend" class="tsd-kind-icon">extend</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#extendtowholepixels" class="tsd-kind-icon">extend<wbr>ToWhole<wbr>Pixels</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#fit" class="tsd-kind-icon">fit</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#getbounds" class="tsd-kind-icon">get<wbr>Bounds</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#getboundsprojected" class="tsd-kind-icon">get<wbr>Bounds<wbr>Projected</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#getpositions" class="tsd-kind-icon">get<wbr>Positions</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#intersect" class="tsd-kind-icon">intersect</a></li>
<li class="tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external"><a href="starling.utils.rectangleutil.html#normalize" class="tsd-kind-icon">normalize</a></li>
</ul>
</section>
</div>
</section>
</section>
<section class="tsd-panel-group tsd-member-group tsd-is-external">
<h2>Methods</h2>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<a name="compare" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> compare</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<li class="tsd-signature tsd-kind-icon">compare<span class="tsd-signature-symbol">(</span>r1<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, r2<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, e<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">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/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L68">lib/starling/utils/RectangleUtil.d.ts:68</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Compares all properties of the given rectangle, returning true only if
they are equal (with the given accuracy 'e').</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>r1: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5>r2: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> e: <span class="tsd-signature-type">number</span></h5>
</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 tsd-is-external">
<a name="extend" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> extend</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<li class="tsd-signature tsd-kind-icon">extend<span class="tsd-signature-symbol">(</span>rect<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, left<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">number</span>, right<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">number</span>, top<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">number</span>, bottom<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/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L41">lib/starling/utils/RectangleUtil.d.ts:41</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Extends the rectangle in all four directions.</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>rect: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> left: <span class="tsd-signature-type">number</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> right: <span class="tsd-signature-type">number</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> top: <span class="tsd-signature-type">number</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> bottom: <span class="tsd-signature-type">number</span></h5>
</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 tsd-is-external">
<a name="extendtowholepixels" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> extend<wbr>ToWhole<wbr>Pixels</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<li class="tsd-signature tsd-kind-icon">extend<wbr>ToWhole<wbr>Pixels<span class="tsd-signature-symbol">(</span>rect<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, scaleFactor<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/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L45">lib/starling/utils/RectangleUtil.d.ts:45</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Extends the rectangle in all four directions so that it is exactly on pixel bounds.</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>rect: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> scaleFactor: <span class="tsd-signature-type">number</span></h5>
</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 tsd-is-external">
<a name="fit" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> fit</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<li class="tsd-signature tsd-kind-icon">fit<span class="tsd-signature-symbol">(</span>rectangle<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, into<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, scaleMode<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">string</span>, pixelPerfect<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">boolean</span>, out<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Rectangle</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L32">lib/starling/utils/RectangleUtil.d.ts:32</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Calculates a rectangle with the same aspect ratio as the given 'rectangle',
centered within 'into'.</p>
</div>
<p>This method is useful for calculating the optimal viewPort for a certain display
size. You can use different scale modes to specify how the result should be calculated;
furthermore, you can avoid pixel alignment errors by only allowing whole-number
multipliers/divisors (e.g. 3, 2, 1, 1/2, 1/3).</p>
<p> @see starling.utils.ScaleMode</p>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>rectangle: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5>into: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> scaleMode: <span class="tsd-signature-type">string</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> pixelPerfect: <span class="tsd-signature-type">boolean</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> out: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Rectangle</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<a name="getbounds" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> get<wbr>Bounds</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<li class="tsd-signature tsd-kind-icon">get<wbr>Bounds<span class="tsd-signature-symbol">(</span>rectangle<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, matrix<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Matrix</span>, out<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Rectangle</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L50">lib/starling/utils/RectangleUtil.d.ts:50</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Calculates the bounds of a rectangle after transforming it by a matrix.
If you pass an <code>out</code>-rectangle, the result will be stored in this rectangle
instead of creating a new object.</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>rectangle: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5>matrix: <span class="tsd-signature-type">Matrix</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> out: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Rectangle</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<a name="getboundsprojected" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> get<wbr>Bounds<wbr>Projected</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<li class="tsd-signature tsd-kind-icon">get<wbr>Bounds<wbr>Projected<span class="tsd-signature-symbol">(</span>rectangle<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, matrix<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Matrix3D</span>, camPos<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Vector3D</span>, out<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Rectangle</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L59">lib/starling/utils/RectangleUtil.d.ts:59</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Calculates the bounds of a rectangle projected into the XY-plane of a certain 3D space
as they appear from the given camera position. Note that 'camPos' is expected in the
target coordinate system (the same that the XY-plane lies in).</p>
</div>
<p>If you pass an 'out' Rectangle, the result will be stored in this rectangle
instead of creating a new object.</p>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>rectangle: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5>matrix: <span class="tsd-signature-type">Matrix3D</span></h5>
</li>
<li>
<h5>camPos: <span class="tsd-signature-type">Vector3D</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> out: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Rectangle</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<a name="getpositions" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> get<wbr>Positions</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<li class="tsd-signature tsd-kind-icon">get<wbr>Positions<span class="tsd-signature-symbol">(</span>rectangle<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, out<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Vector</span><span class="tsd-signature-symbol"><</span><span class="tsd-signature-type">Point</span><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Vector</span><span class="tsd-signature-symbol"><</span><span class="tsd-signature-type">Point</span><span class="tsd-signature-symbol">></span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L63">lib/starling/utils/RectangleUtil.d.ts:63</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Returns a vector containing the positions of the four edges of the given rectangle.</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>rectangle: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> out: <span class="tsd-signature-type">Vector</span><span class="tsd-signature-symbol"><</span><span class="tsd-signature-type">Point</span><span class="tsd-signature-symbol">></span></h5>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Vector</span><span class="tsd-signature-symbol"><</span><span class="tsd-signature-type">Point</span><span class="tsd-signature-symbol">></span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<a name="intersect" class="tsd-anchor"></a>
<h3><span class="tsd-flag ts-flagStatic">Static</span> intersect</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<li class="tsd-signature tsd-kind-icon">intersect<span class="tsd-signature-symbol">(</span>rect1<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, rect2<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span>, out<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Rectangle</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<aside class="tsd-sources">
<ul>
<li>Defined in <a href="https://github.com/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L19">lib/starling/utils/RectangleUtil.d.ts:19</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
<div class="lead">
<p>Calculates the intersection between two Rectangles. If the rectangles do not intersect,
this method returns an empty Rectangle object with its properties set to 0.</p>
</div>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>rect1: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5>rect2: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
<li>
<h5><span class="tsd-flag ts-flagOptional">Optional</span> out: <span class="tsd-signature-type">Rectangle</span></h5>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Rectangle</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static tsd-is-external">
<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 tsd-is-external">
<li class="tsd-signature tsd-kind-icon">normalize<span class="tsd-signature-symbol">(</span>rect<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Rectangle</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/openfl/starling/blob/bce2af2/lib/starling/utils/RectangleUtil.d.ts#L38">lib/starling/utils/RectangleUtil.d.ts:38</a></li>
</ul>
</aside>
<div class="tsd-comment tsd-typography">
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