<area shape="rect" id="node1" href="$classitk_1_1QuadEdge.html" title="Base class for the implementation of a quad-edge data structure as proposed in Guibas..." alt="" coords="5,5,123,35"> <area shape="rect" id="node3" href="$classitk_1_1GeometricalQuadEdge.html" title="This class extends the QuadEdge by adding a reference to the Origin." alt="" coords="171,5,739,35">