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

[Shai Ayal]

Follow-up Comment #12, bug #31305 (project octave):

contour uses patches to draw the contour lines. The patch cdata is supposed
to determine the color of the edges, but it does not work in fltk.
The follwing code displays an empty triangle with black edges on fltk,
although the edges should be blue according to the default colormap:

clf ()
axis ([0 1 0 1])
patch ([0.5, 0.6, 0.5],[0.5, 0.5 , 0.6] , "facecolor", "none", "edgecolor",
"flat", "cdata" , 0.5)

Can you confirm matlabs behavior for his code?

Shai


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