in"><CODE>MonotoneChain</CODE></A>s and a <A HREF="../../../../com/vividsolutions/jts/index/SpatialIndex.html" title="interface in com.vividsolutions.jts.index"><CODE>SpatialIndex</CODE></A>.
 The <A HREF="../../../../com/vividsolutions/jts/index/SpatialIndex.html" title="interface in com.vividsolutions.jts.index"><CODE>SpatialIndex</CODE></A> used should be something that supports
 envelope (range) queries efficiently (such as a <code>Quadtree</code>}
 or <A HREF="../../../../com/vividsolutions/jts/index/s