private static bool IsEdgeSideOfTriangle(DelaunayTriangle triangle, TriangulationPoint ep, TriangulationPoint eq)
{
int index = triangle.EdgeIndex(ep, eq);
if (index == -1)
{
return(false);
}
triangle.MarkConstrainedEdge(index);
triangle = triangle.Neighbors[index];
if (triangle != null)
{
triangle.MarkConstrainedEdge(ep, eq);
}
return(true);
}
private static DelaunayTriangle NextFlipTriangle(DTSweepContext tcx, Orientation o, DelaunayTriangle t, DelaunayTriangle ot, TriangulationPoint p, TriangulationPoint op)
{
int edgeIndex;
if (o == Orientation.CCW)
{
edgeIndex = ot.EdgeIndex(p, op);
ot.EdgeIsDelaunay[edgeIndex] = true;
Legalize(tcx, ot);
ot.EdgeIsDelaunay.Clear();
return(t);
}
edgeIndex = t.EdgeIndex(p, op);
t.EdgeIsDelaunay[edgeIndex] = true;
Legalize(tcx, t);
t.EdgeIsDelaunay.Clear();
return(ot);
}