#9529: in graph_plot.py, sometimes get "libpng error: Image width or height is
zero in IHDR"
-----------------------+----------------------------------------------------
Reporter: rlm | Owner: AlexGhitza
Type: defect | Status: new
Priority: major | Milestone:
Component: algebra | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
-----------------------+----------------------------------------------------
Comment(by rlm):
{{{
**********************************************************************
File "/scratch/rlmill/sage-4.5.rc1/devel/sage-
main/sage/graphs/graph_plot.py", line 267:
sage: GP.plot()
Exception raised:
Traceback (most recent call last):
File "/scratch/rlmill/sage-4.5.rc1/local/bin/ncadoctest.py", line
1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/scratch/rlmill/sage-4.5.rc1/local/bin/sagedoctest.py", line
38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename,
compileflags)
File "/scratch/rlmill/sage-4.5.rc1/local/bin/ncadoctest.py", line
1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_4[13]>", line 1, in <module>
GP.plot()###line 267:
sage: GP.plot()
File "/scratch/rlmill/sage-4.5.rc1/local/lib/python/site-
packages/sage/misc/displayhook.py", line 174, in displayhook
print_obj(sys.stdout, obj)
File "/scratch/rlmill/sage-4.5.rc1/local/lib/python/site-
packages/sage/misc/displayhook.py", line 142, in print_obj
print >>out_stream, `obj`
File "sage_object.pyx", line 101, in
sage.structure.sage_object.SageObject.__repr__
(sage/structure/sage_object.c:1370)
File "/scratch/rlmill/sage-4.5.rc1/local/lib/python/site-
packages/sage/plot/plot.py", line 915, in _repr_
self.show()
File "/scratch/rlmill/sage-4.5.rc1/local/lib/python/site-
packages/sage/plot/plot.py", line 1437, in show
self.save(DOCTEST_MODE_FILE, **options)
File "/scratch/rlmill/sage-4.5.rc1/local/lib/python/site-
packages/sage/plot/plot.py", line 1973, in save
figure.savefig(filename,dpi=dpi,bbox_inches='tight',**options)
File "/scratch/rlmill/sage-4.5.rc1/local/lib/python/site-
packages/matplotlib/figure.py", line 1032, in savefig
self.canvas.print_figure(*args, **kwargs)
File "/scratch/rlmill/sage-4.5.rc1/local/lib/python/site-
packages/matplotlib/backend_bases.py", line 1455, in print_figure
**kwargs)
File "/scratch/rlmill/sage-4.5.rc1/local/lib/python/site-
packages/matplotlib/backends/backend_agg.py", line 366, in print_png
filename_or_obj, self.figure.dpi)
RuntimeError: Error building image
**********************************************************************
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9529#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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