matplotlib-users

[Matplotlib-users] saving a PNg jsut as dispalyed

[Christopher B. <Chr...@no...>]

Hi all,

I want to save a figure just like it is displayed i.e. the same dpi 
(wxAgg). However, the default Figure.savefig uses a different dpi 
setting than the figure as displayed, so I'm doing:

dpi = Fig.get_dpi()
Fig.savefig(str(path), dpi=dpi)

which seems to work, but seems more awkward than it should be. Is there 
a flag or something I'm missing?

-Chris



-- 
Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
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Chr...@no...

Re: [Matplotlib-users] saving a PNg jsut as dispalyed

[Ryan K. <rya...@gm...>]

I think this line in the rc file is the trick

#savefig.dpi       : 100

On Wed, Mar 26, 2008 at 6:16 PM, Christopher Barker
<Chr...@no...> wrote:
> Hi all,
>
>  I want to save a figure just like it is displayed i.e. the same dpi
>  (wxAgg). However, the default Figure.savefig uses a different dpi
>  setting than the figure as displayed, so I'm doing:
>
>  dpi = Fig.get_dpi()
>  Fig.savefig(str(path), dpi=dpi)
>
>  which seems to work, but seems more awkward than it should be. Is there
>  a flag or something I'm missing?
>
>  -Chris
>
>
>
>  --
>  Christopher Barker, Ph.D.
>  Oceanographer
>
>  Emergency Response Division
>  NOAA/NOS/OR&R            (206) 526-6959   voice
>  7600 Sand Point Way NE   (206) 526-6329   fax
>  Seattle, WA  98115       (206) 526-6317   main reception
>
>  Chr...@no...
>
>  -------------------------------------------------------------------------
>  Check out the new SourceForge.net Marketplace.
>  It's the best place to buy or sell services for
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>  Matplotlib-users mailing list
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>

Re: [Matplotlib-users] saving a PNg jsut as dispalyed

[Christopher B. <Chr...@no...>]

Ryan Krauss wrote:
> I think this line in the rc file is the trick
> 
> #savefig.dpi       : 100

nope. I think all that does is set the default dpi for savefig. I don't 
want any default, I want it to use the same dpi that is being used for 
display, and I don't know ahead of time what that is, I expect it is 
system dependent.

Or do you mean that if I comment out that line, it will default to the 
one already in use? In which case, I need to go figure out how to change 
that in code, rather than messing with my matplotlibrc.

-Chris



-- 
Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chr...@no...

Re: [Matplotlib-users] saving a PNg jsut as dispalyed

[Ryan K. <rya...@gm...>]

I guess you could read the rcParams value that corresponds to the
screen display and set rcParams['savefig.dpi'] to that value (this
might work):

mydpi = rcParams['figure.dpi']
rcParams['savefig.dpi'] = mydpi

But that seems slightly hackish and maybe not much more elegant than
what you are currently doing with passing dpi into savefig.

FWIW,

Ryan

On Thu, Mar 27, 2008 at 1:57 PM, Christopher Barker
<Chr...@no...> wrote:
> Ryan Krauss wrote:
>  > I think this line in the rc file is the trick
>  >
>  > #savefig.dpi       : 100
>
>  nope. I think all that does is set the default dpi for savefig. I don't
>  want any default, I want it to use the same dpi that is being used for
>  display, and I don't know ahead of time what that is, I expect it is
>  system dependent.
>
>  Or do you mean that if I comment out that line, it will default to the
>  one already in use? In which case, I need to go figure out how to change
>  that in code, rather than messing with my matplotlibrc.
>
>
>
>  -Chris
>
>
>
>  --
>  Christopher Barker, Ph.D.
>  Oceanographer
>
>  Emergency Response Division
>  NOAA/NOS/OR&R            (206) 526-6959   voice
>  7600 Sand Point Way NE   (206) 526-6329   fax
>  Seattle, WA  98115       (206) 526-6317   main reception
>
>  Chr...@no...
>
>  -------------------------------------------------------------------------
>  Check out the new SourceForge.net Marketplace.
>  It's the best place to buy or sell services for
>  just about anything Open Source.
>  http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
>  _______________________________________________
>  Matplotlib-users mailing list
>  Mat...@li...
>  https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>