Re: [Matplotlib-users] Update individual elements (i.e an artist) for drawing

[Paul I. <piv...@gm...>]

Aman Thakral, on 2011-02-09 15:40,  wrote:
> Hi,
> 
> I was just wondering, how would I go about redrawing only a single element
> (i.e. an artist)? I know that matplotlib.artist.Artist has a draw() method
> that accepts a renderer as the argument.
> 
> I tried something along the lines of:
> 
> renderer = fig.canvas.get_renderer()
> title = ax.set_title("This is my title")
> title.draw(renderer)
> 
> But have not had any luck.  I'm not sure what I'm missing.  Any help would
> be greatly appreciated.

Hi Aman,

To see the affects of rendering something new, you can use:

  ax.figure.canvas.blit(ax.title.get_bbox_patch())

If you intend to change the title several times, however, the
above will just keep over-plotting on top of the previous titles.
In that case, you'll want to use the animated=True keyword and
canvas.restore_region along with the blitting -- see the
animation examples for how to do that.

best,
-- 
Paul Ivanov
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