Sir, I'm a beginner at origin. I have a 3d random data. I want to plot color contour map from it. To do this I convert my 3d data to matrix form using random conversion. But I am unable to get a significant contour map. Which I get, it has no meaning at all. I'm using origin 7.0. So will you please help me to solve this issue? Thank you, Ipsita Basu