private GhostTriangle2D Split(Polygon2D first, Polygon2D second, GhostTriangle2D ghostTriangle)
{
Triangle2D triangle = ghostTriangle.ToTriangle(first);
LineSegment2D splitLine = Max(triangle.AB, triangle.BC, triangle.AC);
int a = first.GetPointIndex(splitLine.FirstPoint);
int b = first.GetPointIndex(splitLine.LastPoint);
Point2D p1 = splitLine.MidPoint;
splitLine = new LineSegment2D(second.GetPoint(a), second.GetPoint(b));
Point2D p2 = splitLine.MidPoint;
Polygon2DEditor polygonEditor = new Polygon2DEditor(first);
polygonEditor.AddInnerPoint(p1);
polygonEditor = new Polygon2DEditor(second);
polygonEditor.AddInnerPoint(p2);
return new GhostTriangle2D(a, b, first.PointCount - 1);
}
public int GetSubIndex(int PointIndex, int SubIndex)
{
Polygon2D subPolygon = this.SubDivision[SubIndex];
return(subPolygon.GetPointIndex(this.Parent.GetPoint(PointIndex)));
}
