lutions/jts/triangulate/quadedge/Vertex.html" title="class in com.vividsolutions.jts.triangulate.quadedge">Vertex</A>&nbsp;v1,
                                <A HREF="../../../../../com/vividsolutions/jts/triangulate/quadedge/Vertex.html" title="class in com.vividsolutions.jts.triangulate.quadedge">Vertex</A>&nbsp;v2)</PRE>
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<DD>For this vertex enclosed in a triangle defined by three vertices v0, v1 and v2, interpolate
 a z value from the surrounding vertices.
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