TopoDS_Vertex commonV;
const list< TopoDS_Edge >& botEdges = thePrism.myBottomEdges;
list< TopoDS_Edge >::const_iterator edge = botEdges.begin();
TopoDS_Vertex commonV;
const list< TopoDS_Edge >& botEdges = thePrism.myBottomEdges;
list< TopoDS_Edge >::const_iterator edge = botEdges.begin();