This is an abstract transformation used to apply a transformation in a normal system, i.e. the coordinate (X,Y) passed to the ReverseWarp and Warp methods varry form -1 to 1 that ever this the bitmap size. To do soo the source rect is taken as bounds of the Destination bitmap
This class will perform rasterization in a progressive manner. It performs subsampling with a block size of 2ˆn and will successively decrease n in each iteration until n equals zero.