Re: [Matplotlib-users] Adding grid to animation with blit

[Sandro T. <mat...@gm...>]

Hi Jae-Joon

On Mon, Jun 22, 2009 at 21:14, Jae-Joon Lee<lee...@gm...> wrote:
> Without actual code, it is difficult to figure out what the real problem is.

sorry I didn't attach a complete example but I would have to strip down a lot :)

> Anyhow, did you check the below animation example?
>
> http://matplotlib.sourceforge.net/examples/animation/animation_blit_gtk.html

yes, but I didn't have the illumination; until now :)

> In the example, the grid is static (i.e., not animated). If what you

that's perfect, I do not want it to be anymated.

> want is to have the grid animated, then an explicit draw_artist call
> is required (note that grid is drawn by axis).

yeah, I want it to be only on Y (only horizonatal lines).

The solution is:

        self.ax = self.fig.add_subplot(111)
...
        self.ax.grid(True)
        self.canvas.draw()  # <-- this was missing

        self.bg = self.canvas.copy_from_bbox(self.ax.bbox)

adding an explicit draw() call let the grid() be drawn and then the
result is what's expected.

Thanks a lot!

Cheers,
-- 
Sandro Tosi (aka morph, morpheus, matrixhasu)
My website: http://matrixhasu.altervista.org/
Me at Debian: http://wiki.debian.org/SandroTosi