[yt-users] Difficulties saving as eps

[Nathan Goldbaum]

On Thu, Dec 11, 2014 at 12:13 PM, Daniel Fenn <dsfenn at gmail.com> wrote:
>
> Hi everyone,
>
> I'm having some difficulties saving a simple slice as an eps. I'm
> following the approach in the docs, where I first do
>
> eps_fig = eps.single_plot(tempSlice),
>
> where tempSlice is the name of my slice object. This throws an error
> in insert_image_yt() around line 477 (my line numbers might be slightly
> different, because I've been messing with the file). The error is that _p1
> is not defined. Looking at the source, I can see that _p1 is only
> conditionally defined. In my particular case, self.canvas = None, so _p1 is
> never defined.
>
> There's a block of logic in the following elif block (~ line 452) that
> looks like it's probably still applicable, but only gets called for phase
> plots when there is a canvas defined. It sets the field and defines _p1. As
> a temporary measure, I copied and pasted this code into the
> self.canvas==None block, just to see if it would work.
>
> That seemed to get it past that issue, but then it soon runs into another
> issue in axis_box_yt(). Around line 290, the following line is executed:
>
> _xrange = (0, width * plot.ds[units])
>

This is likely because you are executing a code path that was never updated
for yt 3.0

Can you reproduce this behavior using one of the test datasets on
yt-project.org/data?  If so, can you file a bug report?

Also, FWIW, you can save a normal PlotWindow plot as eps, just append .eps
to the path you pass to the save() function.


>
> *Units* is a string with a value of "km". Trying to execute this line
> throws a key error. I'm not exactly sure what the line is trying to do, but
> I'm guessing the second value in the tuple is supposed to be a number with
> a unit--perhaps something like YTQuantity(width, units)?
>
> I'm hesitant to change too many things here, because I'm not entirely sure
> what's going on. Are these problems that anyone else has run into?
>
> Thanks for any input,
>
> Dan
>
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>
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