Hi, I am working on a 2D image where I have X and Y axis now I want to simulate Z axis by scaling the size of objects in image. but I am stuck with the calculation. I don't know how to scale the objects based on Z-Axis. I red this http://en.wikipedia.org/wiki/Transformation_matrix link but didn't proof very helpful. Can anyone of you forward me to the right direction. I think I have successfully put my question on this email but if there is some thing missing please let me know . Regards, *Agha Usman Ahmed* Sr . Software Engineer Personal Blog <http://www.aghausman.net> | Official Blog<http://weblogs.asp.net/aghausman/default.aspx>