Re: [Matplotlib-users] PS Output from WXAGG / wxPython application

[Eli G. <eg...@se...>]

>> savefig(*args, **kwargs)
>> SAVEFIG(fname, dpi=150, facecolor='w', edgecolor='w',
>>     orientation='portrait'):
>>
>>     Save the current figure to filename fname.  dpi is the resolution
>>     in dots per inch.
>>
>>     Output file types currently supported are jpeg and png and will be
>>     deduced by the extension to fname
>
> I agree that is a little misleading, but keep reading:
>
>    orientation is either 'landscape' or 'portrait' - not supported on
>    all backends; currently only on postscript output.
>
> savefig works for ps and eps, I use it all the time without changing 
> backends.
>

Ok I tried that out and I am able to save ps files without doing any backend 
switching.
Thanks for the tip!

>> Also I guess I'm not clear if saving to PS/EPS format actually creates a
>> line drawing/ vector image or
>> just creates a bitmap and encapsulates the bitmap in the PS/EPS format.
>> I'm looking to
>> be able to save as a line drawing or vector-type format.
>
> I dont think it is a bitmap, but I will let someone more knowledgable 
> speak to
> that.

Can anyone confirm or deny this?  It seems to me that it is saving out in a 
rasterized version
encapsulated in the postscript format.  I tried saving a simple plot in both 
PNG and PS format -
the PNG is 77 kb and the PS is 623 kb.  The plot only has 3 curves and a 
legend so I'm
guessing its being rasterized in the PS format.

I guess my real question is: is it possible to save a matplotlib plot in a 
vector-based format?

Thanks,

Eli