Revision: 7097
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=7097&view=rev
Author: efiring
Date: 2009-05-08 19:04:34 +0000 (Fri, 08 May 2009)
Log Message:
-----------
clabel takes new kwarg, rightside_up (defaults to True)
Modified Paths:
--------------
trunk/matplotlib/CHANGELOG
trunk/matplotlib/lib/matplotlib/contour.py
Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG 2009-05-07 19:33:33 UTC (rev 7096)
+++ trunk/matplotlib/CHANGELOG 2009-05-08 19:04:34 UTC (rev 7097)
@@ -1,4 +1,9 @@
======================================================================
+2009-05-08 clabel takes new kwarg, rightside_up; if False, labels
+ will not be flipped to keep them rightside-up. This
+ allows the use of clabel to make streamfunction arrows,
+ as requested by Evan Mason. - EF
+
2009-05-07 'labelpad' can now be passed when setting x/y labels. This
allows controlling the spacing between the label and its
axis. - RMM
Modified: trunk/matplotlib/lib/matplotlib/contour.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/contour.py 2009-05-07 19:33:33 UTC (rev
7096)
+++ trunk/matplotlib/lib/matplotlib/contour.py 2009-05-08 19:04:34 UTC (rev
7097)
@@ -91,6 +91,10 @@
placement, delete or backspace act like the third mouse button,
and any other key will select a label location).
+ *rightside_up*:
+ if *True* (default), label rotations will always be plus
+ or minus 90 degrees from level.
+
.. plot:: mpl_examples/pylab_examples/contour_demo.py
"""
@@ -116,6 +120,8 @@
# Detect if manual selection is desired and remove from argument list
self.labelManual=kwargs.get('manual',False)
+ self.rightside_up = kwargs.get('rightside_up', True)
+
if len(args) == 0:
levels = self.levels
indices = range(len(self.levels))
@@ -381,11 +387,12 @@
else:
rotation = np.arctan2(dd[1], dd[0]) * 180.0 / np.pi
- # Fix angle so text is never upside-down
- if rotation > 90:
- rotation = rotation - 180.0
- if rotation < -90:
- rotation = 180.0 + rotation
+ if self.rightside_up:
+ # Fix angle so text is never upside-down
+ if rotation > 90:
+ rotation = rotation - 180.0
+ if rotation < -90:
+ rotation = 180.0 + rotation
# Break contour if desired
nlc = []
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