[Octave-bug-tracker] [bug #35559] lines not printed

[Ben Abbott]

Follow-up Comment #19, bug #35559 (project octave):

After running four sets of demos, the GL2PS_NO_SORT variety produces perfect
2D plots and 3D plots with no hidden line removal.

The GL2PS_BSP_SORT variety produces flawless 3D plots, but doesn't get the
order of 2D object correct. The 1st contourf demo is a good example.

The GL2PS_SIMPLE_SORT is only marginally better for 2D plots as compared to
GL2PS_BSP_SORT, but still has many problems with ordering of objects.

Changing the zlim property in print.m fixed the problem that initiated this
bug report, but other 2D plots still suffer (contourf for example).

Perhaps the gl2ps code needs a patch to avoid changing the sort order of
objects with the same depth from the viewer? 

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