public TransformMatrix ComputeMatrix() { var dx = Dx.ToPixel(); var dy = Dy.ToPixel(); var dz = Dz.ToPixel(); return(new TransformMatrix(1f, 0f, 0f, 0f, 1f, 0f, 0f, 0f, 1f, dx, dy, dz, 0f, 0f, 0f)); }