#13732: Fix output of real data in matplotlib PDF backend
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Reporter: john_perry | Owner: jason, was
Type: defect | Status: needs_review
Priority: trivial | Milestone: sage-5.7
Component: graphics | Resolution:
Keywords: PDF, matplotlib, save, alpha | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Old description:
> We want to fix the following error on sage 5.4. Given the input
>
> {{{
> sage: p = disk((0,0), 5, (0, pi/4), color='red')
> sage: p += disk((0,0), 5, (pi/4, pi/2), color='red', alpha=0.5)
> sage: p.save("test.pdf")
>
> }}}
> we get the error
>
> {{{
> TypeError: Don't know a PDF representation for <type
> 'sage.rings.real_mpfr.RealLiteral'> objects.
>
> }}}
> This can be fixed in the backend quite easily.
New description:
We want to fix the following error on sage 5.4. Given the input
{{{
sage: p = disk((0,0), 5, (0, pi/4), color='red')
sage: p += disk((0,0), 5, (pi/4, pi/2), color='red', alpha=0.5)
sage: p.save("test.pdf")
}}}
we get the error
{{{
TypeError: Don't know a PDF representation for <type
'sage.rings.real_mpfr.RealLiteral'> objects.
}}}
This can be fixed in the backend quite easily.
'''Apply:'''
1. [attachment:trac_13732.patch]
--
Comment (by john_perry):
'''NEEDS REVIEW'''
It looks like you forgot to change the status to "needs work", so I will
leave it as "needs review" ;-)
It turns out that '''all''' the other files I had worked on were okay.
That gave me the idea to look at how `arc()` handles the same problems,
since it also accepts the `alpha` keyword. By mimicking that solution
(which also showed me why the coordinates don't raise the same error), I
avoided the whole `!= None` problem.
To be honest, it looks as if someone either noticed this problem before &
tried to fix it, remembering everything except `disk()`. Here I was
thinking I was making a great contribution, when in fact I was just
cleaning up behind someone else. I'll go weep into some hot tea. ;-)
By the way, I hope you're not too snowed in, way up there in New England.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13732#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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