On Sat, Mar 7, 2015 at 4:17 PM, Thomas Caswell <tcasw...@gmail.com> wrote:
> Thank your for your interest, mpl on touch devices sounds super cool!
>
Indeed!
> The easiest course is probably to develop a backend modeled after the
> {qt,wx,gtk}Agg backends which embed an Agg backend into the gui framework
> of choice. In those cases we rely on Agg to handle the mpl specific
> drawing tasks and then embed the resulting bitmap into the GUI.
>
Kivy is all built on OpenGL, so it would probably be pretty straightforward
to generate teh image with AGG, then dump it to the screen as an OpenGL
texture. But it would be a bit sad to not take advantage of OpenGL at all
in that process. (and getting AGG to work with Kivy may be less than
trivial...)
Note that vector graphics in OpenGL is a serious pain, but maybe Kivy has
some stuff to help?
Also, the MPL back-end structure wasn't designed to push much of the
transforming, etc to the back -end, which is too bad, as that's what OpenGL
does well.
But I'd still take a look at the work done to make a real OpenGL back-end
-- not sure how far that got, but worth a look.
Or look at http://vispy.org/ -- and give up in MPL :-( -- or maybe not!
form teh vispy docs:
"Vispy now ships a very basic and experimental OpenGL backend for
matplotlib."
HTH,
-Chris
> A majority of the work in the gui backends deals window/widget creation
> and the plumbing required to convert interaction events from the GUI into
> the internal events mpl uses.
>
> Tom
>
> On Sat, Mar 7, 2015 at 4:15 PM Achyut Rastogi <rastogiach...@gmail.com>
> wrote:
>
>> Hello , I am a novice gsoc aspirant and I want to write a backend for
>> kivy, I read some of the other conversations on the mailing list and I know
>> about the template you guys provide but I am having trouble getting
>> started, can you please help me get up-to speed. I would be great help if
>> you could tell me what all I need to know of matplotlib to write a good
>> backend.
>> Thank You
>> Achyut Rastogi
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>
>
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