public RectD(PointD location, SizeD size)
{
this.Left = location.X;
this.Top = location.Y;
this.Width = size.Width;
this.Height = size.Height;
}
public static BitmapBuffer Overlay(BitmapBuffer bmp, BitmapBuffer overlay, BitmapBufferEx.PointD location)
{
BitmapBuffer result = bmp.Clone();
var size = new BitmapBufferEx.SizeD(overlay.PixelWidth, overlay.PixelHeight);
result.Blit(new BitmapBufferEx.RectD(location, size), overlay,
new RectD(new BitmapBufferEx.PointD(0, 0), size),
BitmapBufferExtensions.BlendMode.Multiply);
return(result);
}