matplotlib-devel Mailing List for matplotlib

Hi,
Restore_region does not appear to work when embedding mpl into
wxpython. Attached is a simple modification of the cookbook animation
(http://www.scipy.org/Cookbook/Matplotlib/Animations) to illustrate
this problem. I modified the example so it is updated on mouse
movements (followed by idle time) so that the problem is more visual.
There is also a flag to add one second timeouts between commands in
the update method. When looking at the slowed animation it is clear
that the background is never restored.
Michiel Hoon thinks that the problem is due to the fact that
restore_region is not implemented within the event loop and that the
proper solution requires discussion:)
Elan
---
Of joys departed, not to return, how painful the remembrance.
- Robert Blair

Evan Mason wrote:
> Hi, would it be possible to add a keyword to clabel to optionally switch 
> off the angle fix in contour.py lines 384+?
Evan,
Done in r7097. I called the kwarg "rightside_up", defaulting to True.
You have come up with a novel use for clabel. Longer-term, we should be 
able to support streamline plotting more directly by using the contour 
line data to place arrowhead markers at roughly uniform intervals.
Eric
> 
> # Fix angle so text is never upside-down
> if rotation > 90:
> rotation = rotation - 180.0
> if rotation < -90:
> rotation = 180.0 + rotation
> 
> Something like "clabel(CS, upsidedown=True)" with the default as False 
> would do it.
> 
> I am using clabel to put directional arrows on a streamline contour 
> plot, and this rotation causes some of the arrows to point the wrong 
> way. I'm willing to try to do it myself if somebody could tell me which 
> files I would need to edit in addition to contour.py?
> 
> Many thanks,
> 
> Evan
> 
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Neat to see mpl getting into the linux kernel-dev crowd:
http://lwn.net/Articles/329458/
(see the two screenshots). I wasn't thrilled with the charts being
described as 'rudimentary', but what can you do :)
Congrats to the team! World domination is assured...
Cheers,
f

Hi, would it be possible to add a keyword to clabel to optionally switch off
the angle fix in contour.py lines 384+?
# Fix angle so text is never upside-down
 if rotation > 90:
 rotation = rotation - 180.0
 if rotation < -90:
 rotation = 180.0 + rotation
Something like "clabel(CS, upsidedown=True)" with the default as False would
do it.
I am using clabel to put directional arrows on a streamline contour plot,
and this rotation causes some of the arrows to point the wrong way. I'm
willing to try to do it myself if somebody could tell me which files I would
need to edit in addition to contour.py?
Many thanks,
Evan