[Octave-bug-tracker] [bug #61961] Griddata cannot produce mesh on vertical vertices

[Rik]

Follow-up Comment #11, bug #61961 (project octave):

In general if 


f(x,y,z) = C


then solve for z such that 


z = C - f2(x,y)


To plot, choose x,y in the 2-D plane that are valid using functions like
meshgrid, ndgrid, or something of your own choosing.  Calculate z for those x
and y and finally plot with mesh (x,y,z).

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