//меняю подход к задаче:
public myPolygon GetUnionWith(myPolygon polygon, Graphics graphics, Pen pen, bool paint_or_not)
{
this.SetOrinentation();
polygon.SetOrinentation();
int arrangment_of_polygons = this.HasVertexesInside(polygon);
if (arrangment_of_polygons == 0)
{
return this.GetUnionWithIntersectedPolygons(polygon, graphics, pen, paint_or_not);
}
else
if (arrangment_of_polygons == 1)
{
return polygon.GetUnionWithIntersectedPolygons(this, graphics, pen, paint_or_not);
}
else
if (arrangment_of_polygons == 3)
{
//this.Paint(graphics, pen);
this.Fill(graphics, Color.Brown, Color.White, null);
polygon.Fill(graphics, Color.Brown, Color.White, null);
//polygon.Paint(graphics, pen);
return null;
}
else
{
//this.Paint(graphics, pen);
this.Fill(graphics, Color.Brown, Color.White, null);
return this;
}
}
