[Octave-bug-tracker] [bug #52975] regression: print to svg contains two backplanes, one black and one white

[Rik]

Follow-up Comment #4, bug #52975 (project octave):

I did some experimentation.  If I remove the GL2PS_DRAW_BACKGROUND from
gl2psBeginPage then I don't get two backplanes.  However, I also don't get a
colored background if I have chosen one.

I modified draw_axes to always disable GL2PS_DRAW_BACKGROUND with


      // Don't remove hidden primitives when some of them are transparent
      GLint opts;
      gl2psGetOptions (&opts);
      opts &= ~GL2PS_DRAW_BACKGROUND;  // added line


right near the top of the function.  This doesn't seem to have any effect.  It
sort of makes you wonder why we need it.

But, anyways, this seems to point to the sequence


gl2psBeginPage 
opengl_renderer::draw (go);
gl2psEndPage ();




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