/// <summary>
/// Clips the bitmap according to the provided shape and plane. The BitmapBits are replaced by
/// transparent pixels, the original bits are lost. Setting another clip area doesn't restore already clipped
/// pixels. (Ofcourse undo restores the original bitmap bits)
/// </summary>
/// <param name="plane">The plane as a reference system for the shape</param>
/// <param name="shape">The shape for the clip operation</param>
public void Clip(Plane plane, CompoundShape shape)
{
#if !WEBASSEMBLY
Plane pln = new Plane(location, directionWidth, directionHeight);
CompoundShape prsh = shape.Project(plane, pln);
ModOp2D m = ModOp2D.Scale(bitmap.Width / directionWidth.Length, -bitmap.Height / directionHeight.Length);
prsh = prsh.GetModified(m);
m = ModOp2D.Translate(0, bitmap.Height);
prsh = prsh.GetModified(m);
GraphicsPath gp = prsh.CreateGraphicsPath();
using (new Changing(this))
{
Region rg = new Region(gp);
Bitmap clone = bitmap.Clone() as Bitmap;
Graphics graphics = Graphics.FromImage(bitmap);
graphics.Clear(Color.FromArgb(0, 0, 0, 0));
graphics.SetClip(rg, CombineMode.Replace);
graphics.DrawImage(clone, new System.Drawing.Point(0, 0));
graphics.Dispose();
}
#endif
}
