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

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<div class="subTitle">com.badlogic.gdx.math</div>
<h2 title="Class Circle" class="title">Class Circle</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<li>com.badlogic.gdx.math.Circle</li>
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<pre>public class <span class="typeNameLabel">Circle</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 circle class.</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>mzechner</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../serialized-form.html#com.badlogic.gdx.math.Circle">Serialized Form</a></dd>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#radius">radius</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/Circle.html#x">x</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/Circle.html#y">y</a></span></code>&nbsp;</td>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#Circle--">Circle</a></span>()</code>
<div class="block">Constructs a new circle 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/Circle.html#Circle-com.badlogic.gdx.math.Circle-">Circle</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">Copy constructor</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#Circle-float-float-float-">Circle</a></span>(float&nbsp;x,
float&nbsp;y,
float&nbsp;radius)</code>
<div class="block">Constructs a new circle with the given X and Y coordinates and the given radius.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#Circle-com.badlogic.gdx.math.Vector2-float-">Circle</a></span>(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
float&nbsp;radius)</code>
<div class="block">Constructs a new circle using a given <a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math"><code>Vector2</code></a> that contains the desired X and Y coordinates, and a given radius.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#Circle-com.badlogic.gdx.math.Vector2-com.badlogic.gdx.math.Vector2-">Circle</a></span>(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;center,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;edge)</code>
<div class="block">Creates a new <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a> in terms of its center and a point on its edge.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>float</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.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/Circle.html#circumference--">circumference</a></span>()</code>&nbsp;</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/Circle.html#contains-com.badlogic.gdx.math.Circle-">contains</a></span>(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;c)</code>&nbsp;</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/Circle.html#contains-float-float-">contains</a></span>(float&nbsp;x,
float&nbsp;y)</code>
<div class="block">Checks whether or not this circle contains a 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/Circle.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 circle contains a given point.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#equals-java.lang.Object-">equals</a></span>(java.lang.Object&nbsp;o)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#hashCode--">hashCode</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#overlaps-com.badlogic.gdx.math.Circle-">overlaps</a></span>(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;c)</code>&nbsp;</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/Circle.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>
<div class="block">Sets a new location and radius for this circle, based upon another circle.</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/Circle.html#set-float-float-float-">set</a></span>(float&nbsp;x,
float&nbsp;y,
float&nbsp;radius)</code>
<div class="block">Sets a new location and radius for this circle.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#set-com.badlogic.gdx.math.Vector2-float-">set</a></span>(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
float&nbsp;radius)</code>
<div class="block">Sets a new location and radius for this circle.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.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;center,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;edge)</code>
<div class="block">Sets this <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a>'s values in terms of its center and a point on its edge.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#setPosition-float-float-">setPosition</a></span>(float&nbsp;x,
float&nbsp;y)</code>
<div class="block">Sets the x and y-coordinates of circle center</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.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 circle center from vector</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#setRadius-float-">setRadius</a></span>(float&nbsp;radius)</code>
<div class="block">Sets the radius of circle</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#setX-float-">setX</a></span>(float&nbsp;x)</code>
<div class="block">Sets the x-coordinate of circle center</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#setY-float-">setY</a></span>(float&nbsp;y)</code>
<div class="block">Sets the y-coordinate of circle center</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/badlogic/gdx/math/Circle.html#toString--">toString</a></span>()</code>
<div class="block">Returns a <code>String</code> representation of this <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a> of the form <code>x,y,radius</code>.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</code></li>
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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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<h4>radius</h4>
<pre>public&nbsp;float radius</pre>
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<h3>Constructor Detail</h3>
<a name="Circle--">
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<h4>Circle</h4>
<pre>public&nbsp;Circle()</pre>
<div class="block">Constructs a new circle with all values set to zero</div>
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<h4>Circle</h4>
<pre>public&nbsp;Circle(float&nbsp;x,
float&nbsp;y,
float&nbsp;radius)</pre>
<div class="block">Constructs a new circle with the given X and Y coordinates and the given radius.</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>radius</code> - The radius of the circle</dd>
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<h4>Circle</h4>
<pre>public&nbsp;Circle(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;position,
float&nbsp;radius)</pre>
<div class="block">Constructs a new circle using a given <a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math"><code>Vector2</code></a> that contains the desired X and Y coordinates, and a given radius.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>position</code> - The position <a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math"><code>Vector2</code></a>.</dd>
<dd><code>radius</code> - The radius</dd>
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<a name="Circle-com.badlogic.gdx.math.Circle-">
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<h4>Circle</h4>
<pre>public&nbsp;Circle(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;circle)</pre>
<div class="block">Copy constructor</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>circle</code> - The circle to construct a copy of.</dd>
</dl>
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<h4>Circle</h4>
<pre>public&nbsp;Circle(<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;center,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;edge)</pre>
<div class="block">Creates a new <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a> in terms of its center and a point on its edge.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>center</code> - The center of the new circle</dd>
<dd><code>edge</code> - Any point on the edge of the given circle</dd>
</dl>
</li>
</ul>
</li>
</ul>
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<h4>set</h4>
<pre>public&nbsp;void&nbsp;set(float&nbsp;x,
float&nbsp;y,
float&nbsp;radius)</pre>
<div class="block">Sets a new location and radius for this circle.</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>radius</code> - Circle radius</dd>
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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,
float&nbsp;radius)</pre>
<div class="block">Sets a new location and radius for this circle.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>position</code> - Position <a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math"><code>Vector2</code></a> for this circle.</dd>
<dd><code>radius</code> - Circle radius</dd>
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<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>
<div class="block">Sets a new location and radius for this circle, based upon another circle.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>circle</code> - The circle to copy the position and radius of.</dd>
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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;center,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2</a>&nbsp;edge)</pre>
<div class="block">Sets this <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a>'s values in terms of its center and a point on its edge.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>center</code> - The new center of the circle</dd>
<dd><code>edge</code> - Any point on the edge of the given circle</dd>
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<pre>public&nbsp;void&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 circle center from vector</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>position</code> - The position vector</dd>
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<pre>public&nbsp;void&nbsp;setPosition(float&nbsp;x,
float&nbsp;y)</pre>
<div class="block">Sets the x and y-coordinates of circle 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>
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<pre>public&nbsp;void&nbsp;setX(float&nbsp;x)</pre>
<div class="block">Sets the x-coordinate of circle center</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>x</code> - The x-coordinate</dd>
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<pre>public&nbsp;void&nbsp;setY(float&nbsp;y)</pre>
<div class="block">Sets the y-coordinate of circle center</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>y</code> - The y-coordinate</dd>
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<pre>public&nbsp;void&nbsp;setRadius(float&nbsp;radius)</pre>
<div class="block">Sets the radius of circle</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>radius</code> - The radius</dd>
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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 circle contains a 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 circle contains the given point.</dd>
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<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 circle contains a 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> - The <a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math"><code>Vector2</code></a> that contains the point coordinates.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if this circle contains this point; false otherwise.</dd>
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<pre>public&nbsp;boolean&nbsp;contains(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;c)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>c</code> - the other <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>whether this circle contains the other circle.</dd>
</dl>
</li>
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<pre>public&nbsp;boolean&nbsp;overlaps(<a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math">Circle</a>&nbsp;c)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>c</code> - the other <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>whether this circle overlaps the other circle.</dd>
</dl>
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<h4>toString</h4>
<pre>public&nbsp;java.lang.String&nbsp;toString()</pre>
<div class="block">Returns a <code>String</code> representation of this <a href="../../../../com/badlogic/gdx/math/Circle.html" title="class in com.badlogic.gdx.math"><code>Circle</code></a> of the form <code>x,y,radius</code>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
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<pre>public&nbsp;float&nbsp;circumference()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The circumference of this circle (as 2 * <a href="../../../../com/badlogic/gdx/math/MathUtils.html#PI2"><code>MathUtils.PI2</code></a>) * <code>radius</code></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 circle (as <a href="../../../../com/badlogic/gdx/math/MathUtils.html#PI"><code>MathUtils.PI</code></a> * radius * radius).</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>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>hashCode</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
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