Thread: [matplotlib-devel] marker in a plot crashes pdf backend

[matplotlib-devel] marker in a plot crashes pdf backend

From: <jor...@bo...> - 2008-01-29 19:45:29

Attachments: marker_bug.txt marker_bug.py

Hi,

I think there is a bug in the pdf backend (png-files save ok) that makes 
plots crash when they contain a marker.

The attached script crashes on the last savefig. I have also attached a 
traceback.

I run matplotlib-svn-4904 on windows with python 2.4

/Jörgen

Re: [matplotlib-devel] marker in a plot crashes pdf backend

From: Michael D. <md...@st...> - 2008-01-29 19:59:46

Interesting.  I can't reproduce this with Python-2.5 on Linux.  What 
version of numpy do you have installed?  Can you send your matplotlibrc 
file?

Cheers,
Mike

Jörgen Stenarson wrote:
> Hi,
> 
> I think there is a bug in the pdf backend (png-files save ok) that makes 
> plots crash when they contain a marker.
> 
> The attached script crashes on the last savefig. I have also attached a 
> traceback.
> 
> I run matplotlib-svn-4904 on windows with python 2.4
> 
> /Jörgen
> 
> 
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-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

Re: [matplotlib-devel] marker in a plot crashes pdf backend

From: <jor...@bo...> - 2008-01-29 20:24:49

Attachments: matplotlibrc

Michael Droettboom skrev:
> Interesting.  I can't reproduce this with Python-2.5 on Linux.  What 
> version of numpy do you have installed?  Can you send your matplotlibrc 
> file?
> 

I tried upgrading numpy to the latest svn version but I still see the 
same problem. My matplotlibrc file is just the default created at 
buildtime, I have attached it.

/Jörgen

Re: [matplotlib-devel] marker in a plot crashes pdf backend

From: Michael D. <md...@st...> - 2008-01-29 20:33:55

Ok, to save me the trouble of installing Python-2.4 (which doesn't feel 
like the culprit, but appears to be the only variable other than 
platform) I seem to recall a discussion on numpy about coercion of 
scalars to Python int's that may be the culprit here.  Can you please 
add the following line above the line where the exception is raised in 
path.py, line 201, and then send me the output:

    print code, type(code), codes, type(codes)

Also, does changing:

    num_vertices = NUM_VERTICES[code]

to

    num_vertices = NUM_VERTICES[int(code)]

resolve the problem?

Cheers,
Mike

Jörgen Stenarson wrote:
> Michael Droettboom skrev:
>> Interesting.  I can't reproduce this with Python-2.5 on Linux.  What 
>> version of numpy do you have installed?  Can you send your 
>> matplotlibrc file?
>>
> 
> I tried upgrading numpy to the latest svn version but I still see the 
> same problem. My matplotlibrc file is just the default created at 
> buildtime, I have attached it.
> 
> /Jörgen
> 
> 
> 

-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

Re: [matplotlib-devel] marker in a plot crashes pdf backend

From: Michael D. <md...@st...> - 2008-01-29 21:15:18

Ok.  I'll change this in SVN.

Nils Wagner wrote:
> On Tue, 29 Jan 2008 15:33:46 -0500
>  Michael Droettboom <md...@st...> wrote:
>> Ok, to save me the trouble of installing Python-2.4 (which doesn't 
>> feel like the culprit, but appears to be the only variable other than 
>> platform) I seem to recall a discussion on numpy about coercion of 
>> scalars to Python int's that may be the culprit here. Can you please 
>> add the following line above the line where the exception is raised in 
>> path.py, line 201, and then send me the output:
>>
>>    print code, type(code), codes, type(codes)
>>
> 
> 1 <type 'numpy.uint8'> [1 2 1 2] <type 'numpy.ndarray'>
> 2 <type 'numpy.uint8'> [1 2 1 2] <type 'numpy.ndarray'>
> 1 <type 'numpy.uint8'> [1 2 1 2] <type 'numpy.ndarray'>
> 2 <type 'numpy.uint8'> [1 2 1 2] <type 'numpy.ndarray'>
> 
>> Also, does changing:
>>
>>    num_vertices = NUM_VERTICES[code]
>>
>> to
>>
>>    num_vertices = NUM_VERTICES[int(code)]
>>
>> resolve the problem?
> 
> Yes.
> 
> Cheers,
>             Nils
>  

-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

Re: [matplotlib-devel] marker in a plot crashes pdf backend

From: <jor...@bo...> - 2008-01-30 18:50:02

Michael Droettboom skrev:
> Ok.  I'll change this in SVN.
> 
It works for me now as well.

/Jörgen