On Jul 28, 2009, at 4:53 PM, Josh Hemann wrote:
> One small nit: I
> don't see any code to set the color or alpha level of the grid
> lines. In my
> example, I set the color to be a light grey because I wanted the
> grid lines
> to be seen but not be distracting from the data. Just a preference.
Good point. It turns out the grid lines are already pretty faint on my
computer, so I didn't need to adjust this. The most obvious thing to
do is replace
>>> plt.rgrids(radial_grid)
with
>>> lines, labels = plt.rgrids(radial_grid)
>>> plt.setp(lines, alpha=0.4)
**However**, this modification doesn't help. In fact, nothing I did to
the gridlines changed their appearance. Out of frustration, I went to
the code and found that `rgrids` calls *get_ticklines* instead of
*get_gridlines*. My guess is that this is a typo, but there may be a
compelling reason to return the tick lines. If that's not the case,
here's a ridiculously simple patch:
Index: lib/matplotlib/projections/polar.py
===================================================================
--- lib/matplotlib/projections/polar.py (revision 7300)
+++ lib/matplotlib/projections/polar.py (working copy)
@@ -397,7 +397,7 @@
self._r_label2_position.clear().translate(angle, -self._rpad
* rmax)
for t in self.yaxis.get_ticklabels():
t.update(kwargs)
- return self.yaxis.get_ticklines(), self.yaxis.get_ticklabels()
+ return self.yaxis.get_gridlines(), self.yaxis.get_ticklabels()
set_rgrids.__doc__ = cbook.dedent(set_rgrids.__doc__) % kwdocd
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