I don't think you'll get acceptable performance out of that workflow.
I recommend looking into the webagg backend:
http://matplotlib.org/users/whats_new.html#webagg-backend
On Mon, Sep 15, 2014 at 8:38 AM, Xiaobo Yang <xiaobo.y...@gmail.com> wrote:
> Hi, I use matplotlib to create a png file, then display it in a web
> browser. All works fine. Now I want to zoom the plot. What I can think of
> is:
>
> 1) Get coordinates (x1, y1), (x2, y2) of the image when user makes an area
> selection on the image;
>
> 2) Convert (x1, y1), (x2, y2) to the real values matplotlib was plotting;
>
> 3) Request matplotlib to create a new png file using the updated area
> values.
>
> Could anybody please let me know how to accomplish step 2?
>
> Many thanks,
> Tom
>
>
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