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Terrarum/lib/gdxdocs/api/com/badlogic/gdx/math/Ellipse.html
minjaesong 687a7f901e LibGDX stuffs for issue #23
2017-06-11 18:00:48 +09:00

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<div class="header">
<div class="subTitle">com.badlogic.gdx.math</div>
<h2 title="Class Ellipse" class="title">Class Ellipse</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>com.badlogic.gdx.math.Ellipse</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../com/badlogic/gdx/math/Shape2D.html" title="interface in com.badlogic.gdx.math">Shape2D</a>, java.io.Serializable</dd>
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<pre>public class <span class="typeNameLabel">Ellipse</span>
extends java.lang.Object
implements java.io.Serializable, <a href="../../../../com/badlogic/gdx/math/Shape2D.html" title="interface in com.badlogic.gdx.math">Shape2D</a></pre>
<div class="block">A convenient 2D ellipse class, based on the circle class</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>tonyp7</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../serialized-form.html#com.badlogic.gdx.math.Ellipse">Serialized Form</a></dd>
</dl>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#height">height</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#width">width</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#x">x</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#y">y</a></span></code>&nbsp;</td>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#Ellipse--">Ellipse</a></span>()</code>
<div class="block">Construct a new ellipse with all values set to zero</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#Ellipse-com.badlogic.gdx.math.Circle-">Ellipse</a></span>(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;circle)</code>
<div class="block">Constructs a new <a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math"><code>Ellipse</code></a> from the position and radius of a <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a> (since circles are special cases of
ellipses).</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#Ellipse-com.badlogic.gdx.math.Ellipse-">Ellipse</a></span>(<a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a>&nbsp;ellipse)</code>
<div class="block">Copy constructor</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#Ellipse-float-float-float-float-">Ellipse</a></span>(float&nbsp;x,
float&nbsp;y,
float&nbsp;width,
float&nbsp;height)</code>
<div class="block">Constructs a new ellipse</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#Ellipse-com.badlogic.gdx.math.Vector2-float-float-">Ellipse</a></span>(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
float&nbsp;width,
float&nbsp;height)</code>
<div class="block">Costructs a new ellipse</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#Ellipse-com.badlogic.gdx.math.Vector2-com.badlogic.gdx.math.Vector2-">Ellipse</a></span>(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;size)</code>&nbsp;</td>
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<h3>Method Summary</h3>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#area--">area</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#circumference--">circumference</a></span>()</code>
<div class="block">Approximates the circumference of this <a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math"><code>Ellipse</code></a>.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#contains-float-float-">contains</a></span>(float&nbsp;x,
float&nbsp;y)</code>
<div class="block">Checks whether or not this ellipse contains the given point.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#contains-com.badlogic.gdx.math.Vector2-">contains</a></span>(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;point)</code>
<div class="block">Checks whether or not this ellipse contains the given point.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#equals-java.lang.Object-">equals</a></span>(java.lang.Object&nbsp;o)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#hashCode--">hashCode</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#set-com.badlogic.gdx.math.Circle-">set</a></span>(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;circle)</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#set-com.badlogic.gdx.math.Ellipse-">set</a></span>(<a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a>&nbsp;ellipse)</code>
<div class="block">Sets a new position and size for this ellipse based upon another ellipse.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#set-float-float-float-float-">set</a></span>(float&nbsp;x,
float&nbsp;y,
float&nbsp;width,
float&nbsp;height)</code>
<div class="block">Sets a new position and size for this ellipse.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#set-com.badlogic.gdx.math.Vector2-com.badlogic.gdx.math.Vector2-">set</a></span>(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;size)</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#setPosition-float-float-">setPosition</a></span>(float&nbsp;x,
float&nbsp;y)</code>
<div class="block">Sets the x and y-coordinates of ellipse center</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#setPosition-com.badlogic.gdx.math.Vector2-">setPosition</a></span>(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position)</code>
<div class="block">Sets the x and y-coordinates of ellipse center from a <a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math"><code>Vector2</code></a>.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Ellipse.html#setSize-float-float-">setSize</a></span>(float&nbsp;width,
float&nbsp;height)</code>
<div class="block">Sets the width and height of this ellipse</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait</code></li>
</ul>
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<h3>Field Detail</h3>
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<h4>x</h4>
<pre>public&nbsp;float x</pre>
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<h4>y</h4>
<pre>public&nbsp;float y</pre>
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<a name="width">
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<h4>width</h4>
<pre>public&nbsp;float width</pre>
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<h4>height</h4>
<pre>public&nbsp;float height</pre>
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<h3>Constructor Detail</h3>
<a name="Ellipse--">
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<h4>Ellipse</h4>
<pre>public&nbsp;Ellipse()</pre>
<div class="block">Construct a new ellipse with all values set to zero</div>
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<h4>Ellipse</h4>
<pre>public&nbsp;Ellipse(<a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a>&nbsp;ellipse)</pre>
<div class="block">Copy constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ellipse</code> - Ellipse to construct a copy of.</dd>
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<h4>Ellipse</h4>
<pre>public&nbsp;Ellipse(float&nbsp;x,
float&nbsp;y,
float&nbsp;width,
float&nbsp;height)</pre>
<div class="block">Constructs a new ellipse</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - X coordinate</dd>
<dd><code>y</code> - Y coordinate</dd>
<dd><code>width</code> - the width of the ellipse</dd>
<dd><code>height</code> - the height of the ellipse</dd>
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<h4>Ellipse</h4>
<pre>public&nbsp;Ellipse(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
float&nbsp;width,
float&nbsp;height)</pre>
<div class="block">Costructs a new ellipse</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>position</code> - Position vector</dd>
<dd><code>width</code> - the width of the ellipse</dd>
<dd><code>height</code> - the height of the ellipse</dd>
</dl>
</li>
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<a name="Ellipse-com.badlogic.gdx.math.Vector2-com.badlogic.gdx.math.Vector2-">
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<h4>Ellipse</h4>
<pre>public&nbsp;Ellipse(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;size)</pre>
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<a name="Ellipse-com.badlogic.gdx.math.Circle-">
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<h4>Ellipse</h4>
<pre>public&nbsp;Ellipse(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;circle)</pre>
<div class="block">Constructs a new <a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math"><code>Ellipse</code></a> from the position and radius of a <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a> (since circles are special cases of
ellipses).</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>circle</code> - The circle to take the values of</dd>
</dl>
</li>
</ul>
</li>
</ul>
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<h4>contains</h4>
<pre>public&nbsp;boolean&nbsp;contains(float&nbsp;x,
float&nbsp;y)</pre>
<div class="block">Checks whether or not this ellipse contains the given point.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/badlogic/gdx/math/Shape2D.html#contains-float-float-">contains</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../com/badlogic/gdx/math/Shape2D.html" title="interface in com.badlogic.gdx.math">Shape2D</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - X coordinate</dd>
<dd><code>y</code> - Y coordinate</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if this ellipse contains the given point; false otherwise.</dd>
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<a name="contains-com.badlogic.gdx.math.Vector2-">
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<h4>contains</h4>
<pre>public&nbsp;boolean&nbsp;contains(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;point)</pre>
<div class="block">Checks whether or not this ellipse contains the given point.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/badlogic/gdx/math/Shape2D.html#contains-com.badlogic.gdx.math.Vector2-">contains</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../com/badlogic/gdx/math/Shape2D.html" title="interface in com.badlogic.gdx.math">Shape2D</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>point</code> - Position vector</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if this ellipse contains the given point; false otherwise.</dd>
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<h4>set</h4>
<pre>public&nbsp;void&nbsp;set(float&nbsp;x,
float&nbsp;y,
float&nbsp;width,
float&nbsp;height)</pre>
<div class="block">Sets a new position and size for this ellipse.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - X coordinate</dd>
<dd><code>y</code> - Y coordinate</dd>
<dd><code>width</code> - the width of the ellipse</dd>
<dd><code>height</code> - the height of the ellipse</dd>
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<h4>set</h4>
<pre>public&nbsp;void&nbsp;set(<a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a>&nbsp;ellipse)</pre>
<div class="block">Sets a new position and size for this ellipse based upon another ellipse.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ellipse</code> - The ellipse to copy the position and size of.</dd>
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<h4>set</h4>
<pre>public&nbsp;void&nbsp;set(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;circle)</pre>
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<h4>set</h4>
<pre>public&nbsp;void&nbsp;set(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;size)</pre>
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<a name="setPosition-com.badlogic.gdx.math.Vector2-">
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<h4>setPosition</h4>
<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a>&nbsp;setPosition(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position)</pre>
<div class="block">Sets the x and y-coordinates of ellipse center from a <a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math"><code>Vector2</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>position</code> - The position vector</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>this ellipse for chaining</dd>
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<h4>setPosition</h4>
<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a>&nbsp;setPosition(float&nbsp;x,
float&nbsp;y)</pre>
<div class="block">Sets the x and y-coordinates of ellipse center</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - The x-coordinate</dd>
<dd><code>y</code> - The y-coordinate</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>this ellipse for chaining</dd>
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<h4>setSize</h4>
<pre>public&nbsp;<a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math">Ellipse</a>&nbsp;setSize(float&nbsp;width,
float&nbsp;height)</pre>
<div class="block">Sets the width and height of this ellipse</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>width</code> - The width</dd>
<dd><code>height</code> - The height</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>this ellipse for chaining</dd>
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<h4>area</h4>
<pre>public&nbsp;float&nbsp;area()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The area of this <a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math"><code>Ellipse</code></a> as <a href="../../../../com/badlogic/gdx/math/MathUtils.html#PI"><code>MathUtils.PI</code></a> * <a href="../../../../com/badlogic/gdx/math/Ellipse.html#width"><code>width</code></a> * <a href="../../../../com/badlogic/gdx/math/Ellipse.html#height"><code>height</code></a></dd>
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<h4>circumference</h4>
<pre>public&nbsp;float&nbsp;circumference()</pre>
<div class="block">Approximates the circumference of this <a href="../../../../com/badlogic/gdx/math/Ellipse.html" title="class in com.badlogic.gdx.math"><code>Ellipse</code></a>. Oddly enough, the circumference of an ellipse is actually difficult
to compute exactly.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The Ramanujan approximation to the circumference of an ellipse if one dimension is at least three times longer than
the other, else the simpler approximation</dd>
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<h4>equals</h4>
<pre>public&nbsp;boolean&nbsp;equals(java.lang.Object&nbsp;o)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>equals</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
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<pre>public&nbsp;int&nbsp;hashCode()</pre>
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<dd><code>hashCode</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
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