[Octave-bug-tracker] [bug #65421] patch fails to render if cdata is specified before geometry

[Liang Tang]

Follow-up Comment #2, bug #65421 (group octave):

I did a quick check with the patch format below.  All variances of D in the
original report render.  

I have some added info. 

(1) In the original report, I had FaceVertexCData worked for some D.  The geom
data is ahead of Face.  FaceVertexCData simply replaces Cdata.  So the order
of the patch specification is affecting CData more.  

(2) According 8.2, some of the D are out of scope for Octave. I did those as
if I followed (at least I tried to) Mathworks' documentation, which is quite
loose and difficult for me. Now all of D render in Octave. So the 8.2 and the
current documentation do not cover all the variances that the software
supports.  

(3) I don't understand the color scheme specified by any N-by-M. For example,
a patch of 500 vertices and 800 faces  with RGB would have a 800x500x3 as its
color spec.  But each vertex does not connect to 800 faces and each face does
not have 500 vertices.      



patch(...
'Vertices', P, ...    
'Faces', T,...   
'FaceColor', 'interp',...
'EdgeColor', 'interp',...
'FaceAlpha', 0.5,...
'LineWidth', 2, ...
'CData', D);  


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