matplotlib-devel Mailing List for matplotlib

Hi all,
I would like to set up a Travis build of seaborn that tests against the
development version of matplotlib. Ideally this would happen without
actually compiling matplotlib on Travis, to save time.
Does matplotlib master get packaged such that it is installable through
conda? I thought I recalled seeing this somewhere, but I am having trouble
digging it up.
Thanks!
Michael

There is the concept of clipping. We can choose to clip artists to a
bounding box. There has been some back-n-forth on whether or not
annotations should be clipped. I can't remember what we have decided on,
but that example definitely looks like evidence that they should be clipped.
By the way, please use the new python.org mailing lists.
On Thu, Aug 20, 2015 at 1:59 PM, Andrés Vargas <and...@gm...> wrote:
> Hello,
>
> I am writing to let you know guys that while implementing a backend I run
> into an issue when doing panning. Which render the texts outside the axes.
> I tried to solve it but I had no way to know if the text is either from
> inside the axes or outside. I think this perhaps need a change in
> backend_bases. I looked into the other backends and they have the same
> problem even GtkCairo.
>
> http://imagebin.ca/v/2Coe4Nzw3hZl
>
> The problem can be seen on there with the text inside the axes.
>
> Thanks, Andres
>
>
>
>
>
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Hello,
I am writing to let you know guys that while implementing a backend I run
into an issue when doing panning. Which render the texts outside the axes.
I tried to solve it but I had no way to know if the text is either from
inside the axes or outside. I think this perhaps need a change in
backend_bases. I looked into the other backends and they have the same
problem even GtkCairo.
http://imagebin.ca/v/2Coe4Nzw3hZl
The problem can be seen on there with the text inside the axes.
Thanks, Andres

Did you mean 1.4.1 instead of 1.5.1 ?
Exactly which paths are you looking at and how are you generating then on
the mpl side? We have many ways to generate the paths and there maybe
inconsistence in how closed paths are handled.
Tom
On Wed, Aug 12, 2015, 1:57 PM Andrés Vargas <and...@gm...> wrote:
> Hello,
>
> My name is Andres I am developing a backend for kivy. I was initially
> developing for 1.5.1 and I found that the paths are coming with the initial
> vertex at the end of the list. Does anyone know whether this is change in
> the way paths are sent ? and how can be fixed coming from 1.4.3 since I am
> developing the backend for that version.
>
> Thanks, Andres
>
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>

Hello,
My name is Andres I am developing a backend for kivy. I was initially
developing for 1.5.1 and I found that the paths are coming with the initial
vertex at the end of the list. Does anyone know whether this is change in
the way paths are sent ? and how can be fixed coming from 1.4.3 since I am
developing the backend for that version.
Thanks, Andres

If I remember correctly, draw_gouraud_triangle is used by tripcolor when
shading='gouraud'. Basically, it's a gradient mesh in Adobe terms. I'm
sure it's used in a few other places as well.
As for why it's not implement in some backends, it's probably either an
oversight, or gradient meshes aren't natively supported by that particular
toolkit (I would guess the latter).
Finally, as far as the text rotation goes, it depends on value of
text.get_rotation_mode(). The default value is to apply the rotation
first, and then deal with horizontal/vertical alignment. However, a value
of "anchor" will correspond to rotation about the bottom-left position.
See:
http://matplotlib.org/examples/pylab_examples/demo_text_rotation_mode.html
for an illustration.
Hope that helps a bit!
-Joe
On Mon, Aug 10, 2015 at 11:15 AM, Andrés Vargas <and...@gm...> wrote:
> Hello,
>
> Sorry does anyone know what is draw_gouraud_triangle for when you write a
> backend ?
> I am trying to find examples for this but not finding any.
> Also why is this not implemented for gtk, wx and qt ?
> I would also appreciate to know whether the rotation of the text is
> relative to the bottom-left position or the center ?
>
> Thanks :)
>
>
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Hello,
Sorry does anyone know what is draw_gouraud_triangle for when you write a
backend ?
I am trying to find examples for this but not finding any.
Also why is this not implemented for gtk, wx and qt ?
I would also appreciate to know whether the rotation of the text is
relative to the bottom-left position or the center ?
Thanks :)

Thanks Mike. I haven't had a chance to investigate further, but when I
do I will look at pkg-config...
On Fri, Jul 31, 2015 at 2:26 PM, Michael Droettboom <md...@st...> wrote:
> Sorry for the delayed response.
>
> I had a discussion thread with Aaron Meurer last year about adding
> pkg-config support to anaconda so that matplotlib would build
> out-of-the-box, but I don't think that's gone anywhere. That would allow
> the extensive patches in the anaconda matplotlib recipe (and probably many
> other recipes for C and Unixy packages) to go away. (Note that the
> "pkgconfig" Python package in Anaconda is just the Python wrapper to the
> underlying Unix tool which is not present in Anaconda).
>
> Mike
>
>
> On 07/22/2015 07:52 PM, Nathan Goldbaum wrote:
>
> One way to do this is to build a Conda package using the matplotlib recipe:
>
> https://github.com/conda/conda-recipes/tree/master/matplotlib
>
> Looking at the Conda recipe might give you some hints about how it locates
> png.h as well, although I haven't checked in detail.
>
> On Wednesday, July 22, 2015, Brian Granger <ell...@gm...> wrote:
>>
>> No I am fine linking against the stuff that ships with conda - just
>> not clear on how to get the setup.py logic to look in the right place.
>>
>> On Wed, Jul 22, 2015 at 11:20 AM, Phil Elson <pel...@gm...> wrote:
>> > Are you wanting to link against anything other than that installed with
>> > conda?
>> > The output of setup.py is normally pretty helpful at letting you know
>> > which
>> > library it has found to build against.
>> >
>> > On 20 July 2015 at 01:54, Brian Granger <ell...@gm...> wrote:
>> >>
>> >> Hi all,
>> >>
>> >> I am trying to get a dev build of matplotlib working with the anaconda
>> >> python.
>> >>
>> >> Any advice on getting matplotlib to detect and use any of the
>> >> libpng/freetypes:
>> >>
>> >> * Those installed with anaconda python.
>> >> * Those from homebrew
>> >> * Those that ship with OS X
>> >>
>> >> Cheers,
>> >>
>> >> Brian
>> >>
>> >> --
>> >> Brian E. Granger
>> >> Cal Poly State University, San Luis Obispo
>> >> @ellisonbg on Twitter and GitHub
>> >> bgr...@ca... and ell...@gm...
>> >>
>> >>
>> >>
>> >> ------------------------------------------------------------------------------
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>> >
>>
>>
>>
>> --
>> Brian E. Granger
>> Cal Poly State University, San Luis Obispo
>> @ellisonbg on Twitter and GitHub
>> bgr...@ca... and ell...@gm...
>>
>>
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-- 
Brian E. Granger
Cal Poly State University, San Luis Obispo
@ellisonbg on Twitter and GitHub
bgr...@ca... and ell...@gm...