matplotlib-devel Mailing List for matplotlib

So this happens with TkAgg and blitting. Here is the sample script:
#!/usr/bin/env python
import matplotlib; matplotlib.use('TkAgg')
import pylab
from matplotlib.widgets import SpanSelector
fig =3D pylab.figure()
ax =3D fig.add_subplot(111)
ax.plot(pylab.rand(100))
def onselect(vmin, vmax):
 print vmin, vmax
span =3D SpanSelector(ax, onselect, 'horizontal', useblit=3DTrue,
 rectprops=3Ddict(alpha=3D0.5, facecolor=3D'red') )
pylab.show()
Adjust the subplot params then you will see the distortion. With 2
subplots the spanselector never visually appears, but the callback is
called.
Thanks,
 Charlie
On 11/9/05, Charlie Moad <cw...@gm...> wrote:
> I will have to do more testing, but I am calling
> figure.subplots_adjust, not adjusting with the widget. This is also
> through the oo interface. I will try to write a sample script and get
> back to the list.
>
> Thanks,
>
> On 11/9/05, John Hunter <jdh...@ac...> wrote:
> > >>>>> "Charlie" =3D=3D Charlie Moad <cw...@gm...> writes:
> >
> > Charlie> I guess I should have mentioned TkAgg CVS. I didn't
> > Charlie> think the problem would be specific to a backend, so I
> > Charlie> didn't try any others. Also, when I have more than one
> > Charlie> subplot, nothing is drawn period.
> >
> > tkagg works for me, as do multiple subplots. Weird. I'm using
> > examples/span_selector.py. You too?
> >
> > JDH
> >
>

 I will have to do more testing, but I am calling
figure.subplots_adjust, not adjusting with the widget. This is also
through the oo interface. I will try to write a sample script and get
back to the list.
Thanks,
On 11/9/05, John Hunter <jdh...@ac...> wrote:
> >>>>> "Charlie" =3D=3D Charlie Moad <cw...@gm...> writes:
>
> Charlie> I guess I should have mentioned TkAgg CVS. I didn't
> Charlie> think the problem would be specific to a backend, so I
> Charlie> didn't try any others. Also, when I have more than one
> Charlie> subplot, nothing is drawn period.
>
> tkagg works for me, as do multiple subplots. Weird. I'm using
> examples/span_selector.py. You too?
>
> JDH
>

I guess I should have mentioned TkAgg CVS. I didn't think the problem
would be specific to a backend, so I didn't try any others. Also,
when I have more than one subplot, nothing is drawn period.
- Charlie
On 11/9/05, John Hunter <jdh...@ac...> wrote:
> >>>>> "Charlie" =3D=3D Charlie Moad <cw...@gm...> writes:
>
> Charlie> First of all I just committed a generalized SpanSelector
> Charlie> widget that allows for a horizontal or vertical
> Charlie> selection.
>
> Charlie> I am running into a problem (and HorizontalSpanSelector
> Charlie> suffered from the same problem) that the rect is drawn
> Charlie> incorrectly if I adjust the sublot params. Any of the
> Charlie> MPL transforms experts know what I need to do?
>
> I'm having trouble replicating your problem. I launch span_selector,
> draw a rect, and it looks ok. Then I click on subplot params button,
> change the limits, and repeat, and it still looks right to me, both on
> the drawn rectangle and the limits printed by the callback.
>
> Tested on gtkagg with cvs head.
>
> JDH
>