[Octave-bug-tracker] [bug #31305] slow contour plot

[Michael Goffioul]

Follow-up Comment #32, bug #31305 (project octave):

David,

AFAIK facevertexcdata is derived from cdata, and according to is just cdata
re-arranged in another way. It does not depend on edgecolor or facecolor;
however facevertexcdata is only used when edgecolor or facecolor have the
value flat or interp.

So to comment your points:
1) facevertexcdata should not be empty when it's needed (edgecolor or
facecolor are set to flat or interp)

3) in the 3 cases, facevertexcdata will be [1 0 0], as Ben confirmed; this is
normal as cdata is the same in the 3 cases and corresponds to the RGB color of
the single face of the patch


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