sage -t --long devel/sage/sage/plot/plot3d/tachyon.py
**********************************************************************
File "devel/sage/sage/plot/plot3d/tachyon.py", line 490, in
sage.plot.plot3d.tachyon.Tachyon.?
Failed example:
show(t)
Expected nothing
Got:
sh: line 1: 16694 Segmentation fault (core dumped) tachyon
/home/buildbot/.sage/temp/lena/16574/tmp_CwtKv8.dat -format PNG -o
/home/buildbot/.sage/temp/lena/16574/test.png > /dev/null
**********************************************************************
I assume the segmentation fault always existed, but undetected by the
previous doctesting framework.
Are the line numbers correct (and correspond to [those of] Sage
5.8.beta3)?
In an interactive session, the following example (around/above line 490)
works for me*:
sage: t = Tachyon(camera_center=(2,5,4), look_at=(2,0,0), raydepth=6)
sage: t.light((10,3,4), 1, (1,1,1))
sage: t.texture('mirror', ambient=0.05, diffuse=0.05, specular=.9,
opacity=0.9, color=(.8,.8,.8))
sage: t.texture('grey', color=(.8,.8,.8), texfunc=3)
sage: t.plane((0,0,0),(0,0,1),'grey')
sage: t.sphere((4,-1,1), 1, 'mirror')
sage: t.sphere((0,-1,1), 1, 'mirror')
sage: t.sphere((2,-1,1), 0.5, 'mirror')
sage: t.sphere((2,1,1), 0.5, 'mirror')
sage: show(t)
