given rectangle, if it does so. If it does not intersect, 
 null is returned.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>curveIndex</code> - the curve index specifying the curve to analyse</dd>
<dd><code>rect</code> - the whose boundary is to be tested for intersection
 with this curve</dd>
<dd><code>indexSeg</code> - the segments on this curve being checked</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the point at which this curve segment  intersects the bounda