Ted Drain wrote:
> Just a note about the speed of blitting:
Your points are well taken. I had forgotten about remote X sessions, and
yes, if you need to convert to a different type of pixmap, that can take
time too, so keeping it to just what's needed does make sense.
-Chris
--
Christopher
[matplotlib-devel] Unnecessary rerendering in wx/wxagg
> backends
>
> Hi Christopher,
>
> thanks for your valueable feedback. I am proceeding slowly, but
> steadily.
> >
> > > backend_qtagg.py seems to contain a proper (more or
> >> less, see other postings
Hi Christopher,
thanks for your valueable feedback. I am proceeding slowly, but steadily.
>
> > backend_qtagg.py seems to contain a proper (more or
>> less, see other postings of Ted Drain) implementation of double
>> buffered drawing that avoids unnecessary rerendering of the bitmap.
>
> It stil
Gregor,
Thanks for working on this.
> backend_qtagg.py seems to contain a proper (more or
> less, see other postings of Ted Drain) implementation of double buffered
> drawing that avoids unnecessary rerendering of the bitmap.
It still feels a bit kludgy to me -- a paint event should simply copy
Here I attached diff files of my changes, compared to matplotlib-0.91.2
release.
Gregor Thalhammer
--- Kopie von backend_wx.py Mon Mar 31 10:28:22 2008
+++ backend_wx.py Sun Apr 6 10:23:09 2008
@@ -752,11 +752,14 @@
self._isRealized = False
self._isConfigured = False
I continued to work on this issue. Thanks for Chris Barker for pointing
me into the right direction. I also had a look at other gui backends,
and, among other, backend_qtagg.py seems to contain a proper (more or
less, see other postings of Ted Drain) implementation of double buffered
drawing th
Erik Tollerud wrote:
> I tested this on 0.91.2 on Ubuntu Gutsy, and wx 2.8.7.1, and found
> that when I bring up a new window, I see a black canvas and it doesn't
> draw any of the matplotlib objects until I do something like resizing
> that must explicitly call a draw at some point.
yup, same her
I tested this on 0.91.2 on Ubuntu Gutsy, and wx 2.8.7.1, and found
that when I bring up a new window, I see a black canvas and it doesn't
draw any of the matplotlib objects until I do something like resizing
that must explicitly call a draw at some point. This may be why it's
in there... perhaps s
Dear developers,
I discovered that in backend_wx.py in _onPaint(), the callback function
for repainting a matplotlib figure, every time a repaint is done also
the bitmap is rerendered:
backend_wx.py/_onPaint():
...
# Render to the bitmap
self.draw(repaint=False)
...
This also affects the behav
