[Octave-bug-tracker] [bug #34523] surf() with gnuplot does not handle FaceColor correctly

[Dan Sebald]

Follow-up Comment #10, bug #34523 (project octave):

I added the 


set(h, 'edgecolor', 'r')
set(h, 'linewidth', 3)
set(h, 'linestyle', ':')
set(h, 'facecolor', 'y')


simply as an illustration that those plot elements are controllable now.  You
may leave that off.

Yes, the line is covered up by the plot surface.  gnuplot doesn't apply
hidden3d to what is called "pm3d".  The algorithm used is what is sometimes
referred to as the "painters algorithm", in that it simply paints the surface
elements depending on depth of the elements.  I've wanted to do a true
hidden3d surface algorithm in gnuplot for years, but it is a big job and I
haven't found the time.

There might be a way to make hidden3d behave correctly in simple cases.  (We
did a similar sort of thing for hidden3d and images recently.)



    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?34523>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/