I created a 3d surface (persp) with some points overlaid on it, which is fine. Now I have a second set of z-values(x,y-values same as the first surface), which I would like to make visible on the same graph, however, not as a surface, but rather as coloured contour on the first surface, so that the resulting graph will consist of the original surface having the colour of the second set of z-values; I managed to create a coloured contour plot, whereby the the contours are based on the first set of z-values and the second set is a colour-coded overlay. If I could do this in 3-d I would be happy for any hint you could give me.
Thanks for any help
Peter --
Peter Kraft Department of Zoology and Entomology University of Queensland
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