matplotlib-devel Mailing List for matplotlib

>>>>> "Charlie" == Charlie Moad <cw...@gm...> writes:
 Charlie> A challenge to the community! ;) Run the current
 Charlie> cursor.py example with the TkAgg backend. (blitting
 Charlie> should be on) i.e. python cursor.py -dTkAgg
 Charlie> Why does the blitting not update the entire axis? Any
 Charlie> help on this is greatly appreciated.
THere was a flipy offset needed in _tkagg.cpp
 int srcheight = (int)aggRenderer->get_height();
 //...
 desty = srcheight-(int)t; 
I just commited this to CVS -- take it for a test drive.
Checking in src/_tkagg.cpp;
/cvsroot/matplotlib/matplotlib/src/_tkagg.cpp,v <-- _tkagg.cpp
new revision: 1.10; previous revision: 1.9
JDH

A challenge to the community! ;)
Run the current cursor.py example with the TkAgg backend. (blitting
should be on)
i.e. python cursor.py -dTkAgg
Why does the blitting not update the entire axis? Any help on this is
greatly appreciated.
Thanks,
 Charlie
On 11/10/05, Charlie Moad <cw...@gm...> wrote:
> 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
> > >
> >
>

On Thursday 17 November 2005 10:24 pm, John Hunter wrote:
> Darren found this problem with creating a temporary dir with
> python2.2. I don't have a 2.2 install laying around. If someone
> does, could you take a minute and find what the proper way is to avoid
> this err:
>
> t = tempfile.TemporaryFile(dir=p)
> TypeError: TemporaryFile() got an unexpected keyword argument 'dir'
Here is the docstring for tempfile.TemporaryFile in python-2.2:
TemporaryFile(mode='w+b', bufsize=-1, suffix='')
 Create and return a temporary file (opened read-write by default).
Darren