ulate 
 the radius.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The radius of the node.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.Exception</code> - If there is some problem in calculating the 
 radius.</dd></dl>
</li>
</ul>
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<h4>calcRadius</h4>
<pre>public static&nbsp;double&nbsp;calcRadius(int&nbsp;sta