[yt-dev] EPS writer

[Geoffrey So]

Thank you John, that worked perfectly.

I had to do a pip install pyx and added a line in my python script to call
"convert"

stream = os.popen("convert -quality 90 gasmass_v_SFReps.png
gasmass_v_SFReps.jpg")

Things I couldn't do:
- changing the font or have latex style
- display fraction using the $\frac{x}{y}$ to get an x over y.
- have the title outside of the jpg image (currently the title sits on top
blocking part of the image)

But in a paper I don't think they're that important. The colored version is
now ~170k instead of ~500k

From
G.S.

On Mon, Mar 12, 2012 at 3:25 PM, John Wise <jwise at physics.gatech.edu> wrote:

> Hi Geoffrey,
>
> eps_writer only interacts with JPEGs, so you can first convert the PNG to
> a JPG with your favorite image editor or imagemagick (convert -quality 90
> image.png image.jpg).  Then you can make an EPS file with that image.  The
> image should only be the phase plot without any decorators.
>
> import yt.visualization.eps_writer as EPS
> d = EPS.DualEPS()
> d.axis_box(xrange=(0,1), yrange=(0,1), xlabel="xlabel", ylabel="ylabel")
> d.insert_image('test.jpg')
> d.colorbar('algae', zrange=(0.1,10), log=True, label="label",
> orientation="right")
> d.save_fig('test.eps')
>
> Let me know if this works for you.
>
> John
>
>
> On 03/09/2012 05:31 PM, Geoffrey So wrote:
>
>> Hi, I guess this question mainly goes to John Wise,
>>
>> I currently have two columns of data I am plotting with matplotlib
>> calls, but if I save them as EPS the file size is ~1.5 MB instead of png
>> as ~35KB, is there a simple way to save them as EPS format, with PNG
>> graph but LaTeX text for the axis in YT?
>>
>> During your latest YT workshop talk, you showed how we can create EPS
>> images using PlotCollection png phase graph with LaTeX text, which is
>> exactly what I wanted to do for my publication to bring down the image
>> file size... Except my graphs were created from 2 columns of data
>> (derived using YT but plotted with matplotlib) and not the
>> PlotCollection engine.  Can the png be inserted to PlotCollection to
>> take advantage of the EPS writer?
>>
>> Other suggestions, comments are welcomed (such as not even bother
>> worrying about the file size, or this is beyond the scope of YT).
>>
>> From
>> G.S.
>>
>> PS.  I've tried using the cmap=gray in the imshow call, and that cuts
>> the file size down to 0.5MB, but colored plots are so much nicer!
>>
>>
>>
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>>
>
> --
> John Wise
> Assistant Professor of Physics
> Center for Relativistic Astrophysics, Georgia Tech
>
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