#10442: Tachyon fails on empty graphics objects
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Reporter: vbraun | Owner: jason, was
Type: defect | Status: new
Priority: major | Milestone:
Component: graphics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by tcoffee):
This looks to me like an easy fix.
In 6.1.1, the Graphics3dGroup.texture_set() method is defined by line
sage/plot/plot3d/base.pyx:1501:
{{{
return reduce(set.union, [g.texture_set() for g in self.all])
}}}
It chokes on empty graphics because reduce() chokes on an empty list.
Adding an initializer resolves the issue:
{{{
return reduce(set.union, [g.texture_set() for g in self.all], set())
}}}
Being in a hurry at the moment, I just used an external workaround:
{{{
def texture_set(g):
try:
return g.texture_set()
except TypeError:
return reduce(set.union, [texture_set(gi) for gi in g.all],
set())
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/10442#comment:4>
Sage <http://www.sagemath.org>
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