#7232: fix tachyon segfault introduced by #6542
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Reporter: was | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-5.8
Component: graphics | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by strogdon):
Tachyon seems to bomb out on the original example in the limit as
camera_center->(0,0,0). Then, from tachyon.py viewdir=(0,0,0), which may
not make sense; although on other examples I've tried when camera_center
and viewdir are the zero vector then Tachyon returns an empty image. For
the given example using
{{{
t = Tachyon(camera_center=(1.e-30,1.e-30,1.e-30))
}}}
does give, a not very interesting, image. How small vector_center can be
and not cause Tachyon to bomb out my be hardware/software specific. With
{{{
t = Tachyon(camera_center=(-3,3,0))
}}}
I get an image similar to the parametric_plot() output. This sounds like a
Tachyon bug.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7232#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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