[pstricks] 3D surface on non rectangular domain

leon.free at free.fr leon.free at free.fr
Wed Mar 1 14:21:01 CET 2017

I'd like to plot the surface of a function such as exp(x*y) only for the (x,y)'s in the unit ball B = \{(x,y) \in \mathbb{R}^2 : x^2+y^2 \le 1\}. I do not want to set the value of the function outside B to some particular value (e.g. 0). Do you know if there exists some pstricks package that can make this ?

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