[yt-users] colorbar rasterization
Nathan Goldbaum
goldbaum at ucolick.org
Wed Jun 27 14:42:43 PDT 2012
From the matplotlib faq:
>>> import matplotlib
>>> matplotlib.__version__
'0.98.0'
Cheers,
Nathan Goldbaum
Graduate Student
Astronomy & Astrophysics, UCSC
goldbaum at ucolick.org
http://www.ucolick.org/~goldbaum
On Jun 27, 2012, at 2:38 PM, Christine Simpson wrote:
> In the beginning I did just what Sam suggested and it didn't look that
> great, but maybe I need to up the dpi more. The one tricky thing I
> found in converting the png's to pdf's by hand was getting the colors to
> come out right. I used ImageMagick and had to specify the -type flag to
> get it to come out right.
>
> I will try emailing the matplotlib users list. Silly question: how do I
> determine the version number of matplotlib in my yt installation?
>
> Christine
>
> On Wed, 2012-06-27 at 14:28 -0700, Nathan Goldbaum wrote:
>> This is a long-standing bug in matplotlib (discussed
>> here: http://sourceforge.net/mailarchive/forum.php?thread_name=4D2DF596.3060503%40hawaii.edu&forum_name=matplotlib-users)
>>
>>
>> It may be a bit of work on your part to make a simple script that
>> reproduces the bug, but I think it would be worthwhile to report this
>> on matplotlib-users and so that we can get an official response from
>> the matplotlib developers.
>>
>>
>> I did and bit of googling but unfortunately I can't find a simple fix
>> for this beyond Sam's suggestion to do the conversion to vector
>> graphics by hand.
>>
>>
>> Cheers,
>>
>> Nathan Goldbaum
>> Graduate Student
>> Astronomy & Astrophysics, UCSC
>> goldbaum at ucolick.org
>> http://www.ucolick.org/~goldbaum
>>
>> On Jun 27, 2012, at 2:17 PM, Sam Skillman wrote:
>>
>>> Hi Christine,
>>>
>>>
>>> This doesn't fix the underlying issue, but I usually just dump the
>>> pngs out with a high dpi and use a conversion from png to eps. If
>>> you have Gimp, you may want to give this a shot:
>>> http://code.google.com/p/agpy/source/browse/trunk/contributed/pngtoeps?r=247
>>>
>>> Others might have better ideas, but my guess is a lot of them will
>>> deal with modifying your matplotlib backend, which I've never had
>>> great luck with for vector formats.
>>>
>>>
>>> Best,
>>> Sam
>>>
>>> On Wed, Jun 27, 2012 at 3:10 PM, Christine Simpson
>>> <csimpson at astro.columbia.edu> wrote:
>>> Hi everyone,
>>>
>>> I have a question that may be more of a matplotlib question
>>> than a yt
>>> question, but it's an issue with some yt generated figures I
>>> have, so I
>>> thought I'd ask it here. I think there was some discussion
>>> of this on
>>> the list a while ago but I can't find the thread.
>>>
>>> When I output images that include colorbars in vector
>>> formats (like pdf
>>> and eps), I get these little lines running across the color
>>> bar. It
>>> goes away if I output the image in a rasterized format (like
>>> png). I
>>> wanted to output my images in vector format (as pdfs) so
>>> everything
>>> looks nice and sharp. I've figured out how to just
>>> rasterize the color
>>> bar. However, I don't want to rasterize the color bar
>>> labels, and the
>>> way I've implemented it, the labels get rasterized too. It
>>> seems in
>>> figure objects (and maybe axes objects?) there is a way to
>>> specify the
>>> order that items get drawn and/or rasterized (through the
>>> zorder and
>>> rasterized_zorder keywords); I've played around with this
>>> but haven't
>>> been able to get it to work. The color bar is a Colorbar
>>> object and it
>>> doesn't seem like this class allows for adjusting the
>>> rasterization
>>> order of things.
>>>
>>> I've pasted an example script here:
>>> http://paste.yt-project.org/show/2504/
>>> I'm probably going to give up on this soon, but any advice
>>> people have
>>> would be greatly appreciated.
>>>
>>> Christine
>>>
>>>
>>> _______________________________________________
>>> yt-users mailing list
>>> yt-users at lists.spacepope.org
>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>
>>>
>>>
>>> _______________________________________________
>>> yt-users mailing list
>>> yt-users at lists.spacepope.org
>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>
>>>
>>> !DSPAM:10175,4feb786c2390219978230!
>>
>> _______________________________________________
>> yt-users mailing list
>> yt-users at lists.spacepope.org
>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>
>
> _______________________________________________
> yt-users mailing list
> yt-users at lists.spacepope.org
> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>
> !DSPAM:10175,4feb7db63533321668429!
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.spacepope.org/pipermail/yt-users-spacepope.org/attachments/20120627/16d3205b/attachment.html>
More information about the yt-users
mailing list