[Scilab-users] surf and %nan

[Richard llom]

Hi all,
I have a big matrix, which I want to surf plot. However there are actually
only values for a non-rectangular shape and i want to blank out those other
values (which are -999 by default).

[a,b]=find(M==-999);
M(a,b) = %nan;
surf(M);

However this gives me a weird all-black surf plot, with a Z up to -1000 ??

Am I'm missing something?
cheers
richard



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