matplotlib-users Mailing List for matplotlib

Eric Firing wrote:
> Bill Dandreta wrote:
>> There appears to be a problem with .png files that matplotlib
>> creates. Some programs (like GIMP <http://www.gimp.org/> and xv)
>> <http://www.trilon.com/xv/> do not identify them as png files and
>> cannot display them.
>
> Would you be more specific, please?  I can't reproduce the problem.  I
> don't have xv, but on my ubuntu feisty machine the "file" command and
> gimp both recognize mpl-generated png files (using Agg backend).
>
> Do you have mpl-generated png files that are recognized by some
> display programs but not by gimp and xv?  If so, what are the programs
> that recognize them?  What version of mpl was used, and what backend? 
> Please provide an example.
I resolved the problem. It was unrelated to mpl. xv and gimp were
complied w/o png support. Recompiling with png support resolved the problem.

-- 
Bill

wjd...@at...

Gentoo Linux X86_64 2.6.20-gentoo-r8

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Bill Dandreta wrote:
> There appears to be a problem with .png files that matplotlib creates. 
> Some programs (like GIMP <http://www.gimp.org/> and xv) 
> <http://www.trilon.com/xv/> do not identify them as png files and cannot 
> display them.

Would you be more specific, please?  I can't reproduce the problem.  I 
don't have xv, but on my ubuntu feisty machine the "file" command and 
gimp both recognize mpl-generated png files (using Agg backend).

Do you have mpl-generated png files that are recognized by some display 
programs but not by gimp and xv?  If so, what are the programs that 
recognize them?  What version of mpl was used, and what backend?  Please 
provide an example.

Eric

Wayne E. Harlan wrote:
> Bill:
>
> I do not have that problem using mpl-0.90.1 or svn which I checked out
> and installed yesterday.  I have gimp-2.2.17 and have no problems
> opening them on my linux system or my two XP systems at work.  The
> issue I do find is that when I specify the DPI in the savefig command,
> it does not properly get encoded into the png, although the size of
> the graphic is set accordingly.  So maybe that is a clue to what's
> happening to you.  You are saving them as "something.png", right ?
>
I discovered the problem, xv and gimp were compiled without png support.

Thanks for your input.

-- 
Bill

wjd...@at...

Gentoo Linux X86_64 2.6.20-gentoo-r8

Reclaim Your Inbox with http://www.mozilla.org/products/thunderbird/

All things cometh to he who waiteth as long as he who waiteth worketh like hell while he waiteth.

Bill:

I do not have that problem using mpl-0.90.1 or svn which I checked out 
and installed yesterday.  I have gimp-2.2.17 and have no problems 
opening them on my linux system or my two XP systems at work.  The issue 
I do find is that when I specify the DPI in the savefig command, it does 
not properly get encoded into the png, although the size of the graphic 
is set accordingly.  So maybe that is a clue to what's happening to 
you.  You are saving them as "something.png", right ?

Wayne

Bill Dandreta wrote:
> There appears to be a problem with .png files that matplotlib creates. 
> Some programs (like GIMP <http://www.gimp.org/> and xv) 
> <http://www.trilon.com/xv/> do not identify them as png files and 
> cannot display them.
>

There appears to be a problem with .png files that matplotlib creates.
Some programs (like GIMP <http://www.gimp.org/> and xv)
<http://www.trilon.com/xv/> do not identify them as png files and cannot
display them.

-- 
Bill

wjd...@at...

Gentoo Linux X86_64 2.6.20-gentoo-r8

Reclaim Your Inbox with http://www.mozilla.org/products/thunderbird/

All things cometh to he who waiteth as long as he who waiteth worketh like hell while he waiteth.