// Flip all vertices horizontally or vertically,
// between x1 and x2, or between y1 and y2 respectively
//--------------------------------------------------------------------
public void flip_x(double x1, double x2)
{
int i;
double x, y;
for (i = 0; i < vertices.total_vertices(); i++)
{
ShapePath.FlagsAndCommand PathAndFlags = vertices.vertex(i, out x, out y);
if (ShapePath.is_vertex(PathAndFlags))
{
vertices.modify_vertex(i, x2 - x + x1, y);
}
}
}
public void modify_vertex(int index, double x, double y)
{
vertices.modify_vertex(index, x, y);
}