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<h4>setup</h4>
<pre>public&nbsp;void&nbsp;setup(android.graphics.PointF&nbsp;center,
                  float&nbsp;radius)</pre>
<div class="block">a circle has a center point and a radius</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>center</code> - Center point</dd>
<dd><code>radius</code> - Circle radius</dd>
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