John,
As you said I also believe it is likley to be a configuration/conflict
error. I recieve the same error below any time I attempt to use
savefig() with an Agg backend. The script below is an example file to
show it happens on even the most simple code. I was wondering if any
one had seen this , or could give me an idea of where to look for
removing the conflict. Are there file dependencies I should be looking
at , outside of Matplotlib?
Thanks again!
C Scott Glackin
Production Support Specialist / IT
Lockwood®
10 Valley Stream Parkway
Malvern, PA 19355
Phone: (610)-651-8810
Email: CGlackin@...730...
---------+------------------------------->
> John Hunter |
> <jdhunter@...732...|
> hicago.edu> |
> >
> 08/17/2005 09:58 AM |
> >
---------+------------------------------->
>--------------------------------------------------------------------------------------------------------------|
> >
> To: cglackin@...730... |
> cc: matplotlib-users@lists.sourceforge.net |
> Subject: Re: [Matplotlib-users] Agg backend errors |
>--------------------------------------------------------------------------------------------------------------|
> John, Thank you for the reply!
> It does not seem to matter if I use .png or leave off
> the extension (as I really should have). I have
> uninstalled , and reinstalled Matplotlib, and Numeric.
> And in a final check even reinstalled Python. Same
> errors. I can see the agg backends are in the default
> directories , and the paths seem to allow access to
> them, the errors seem to happen during rendering or
> saving.
I tried to replicate this problem and could not. I did a clean
install of 0.83.2 on windows XP for python23 and Numeric 23.7 and your
test script ran fine for me. That makes it harder to fix.
I reread your original post and you are getting the error
File "C:\Python23\Lib\site-packages\matplotlib\agg.py", line 809,
in move_to
def move_to(*args): return _agg.path_storage_move_to(*args)
TypeError: argument number 1: a 'path_t *' is expected,
'path_storagePtr(<agg.path_storagePtr; proxy of C++
agg::path_storage instance at _208aa401_p_agg__path_storage>)' is
received
Is this the one you are still getting? For some reason it appears
that the SWIG typedef 'path_t' for 'agg::path_storage' is not being
properly handled on your system.
Can you provide any more information (exact operating system, other
things you've installed, any nonstandard path settings, etc). I
assume the script you posted is the one you are working with, and you
are not importing anything except pylab.
Here is what I am testing with
from pylab import *
plot(arange(10), color='#006400')
xlabel('this is a xlabel\n(with newlines!)')
ylabel('this is vertical\ntest', multialignment='center')
#ylabel('this is another!')
text(2, 7,'this is\nyet another test',
rotation=45,
horizontalalignment = 'center',
verticalalignment = 'top',
multialignment = 'center')
savefig('multiline')
which I run with
C:> c:\Python23\python myscript.py -dAgg --verbose-helpful
JDH
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