Hi all,
I ran into a problem where I wanted to plot a step-plot with dashed
lines instead of solid lines which can be important for print media.
This isn't possible with the current matplotlib version, so I added
support for this. The patch is attached, but I didn't commit it yet
since I wanted to ask for feedback first. It basically adds support to do
pylab.plot(x, y, 'steps--')
to create a step plot with dashed lines.
mm
Index: lines.py
===================================================================
--- lines.py (revision 6055)
+++ lines.py (working copy)
@@ -561,11 +561,27 @@
if linestyle not in self._lineStyles:
if ls_mapper.has_key(linestyle):
linestyle = ls_mapper[linestyle]
- else:
+ elif not linestyle.startswith('steps'):
verbose.report('Unrecognized line style %s, %s' %
(linestyle, type(linestyle)))
if linestyle in [' ','']:
linestyle = 'None'
+ if linestyle.startswith('steps'):
+ stepslinestyle = linestyle[-2:]
+ if stepslinestyle=='--':
+ self._stepslineFunc = getattr(self, self._lineStyles['--'])
+ linestyle = linestyle[:-2]
+ elif stepslinestyle=='-.':
+ self._stepslineFunc = getattr(self, self._lineStyles['-.'])
+ linestyle = linestyle[:-2]
+ elif stepslinestyle[1]==':':
+ self._stepslineFunc = getattr(self, self._lineStyles[':'])
+ linestyle = linestyle[:-1]
+ elif stepslinestyle[1]=='-':
+ self._stepslineFunc = getattr(self, self._lineStyles['-'])
+ linestyle = linestyle[:-1]
+ else:
+ self._stepslineFunc = getattr(self, self._lineStyles['-'])
self._linestyle = linestyle
self._lineFunc = self._lineStyles[linestyle]
@@ -676,7 +692,7 @@
path = Path(steps)
path = path.transformed(self.get_transform())
- self._draw_solid(renderer, gc, path, IdentityTransform())
+ self._stepslineFunc(renderer, gc, path, IdentityTransform())
def _draw_steps_post(self, renderer, gc, path, trans):
@@ -688,7 +704,7 @@
path = Path(steps)
path = path.transformed(self.get_transform())
- self._draw_solid(renderer, gc, path, IdentityTransform())
+ self._stepslineFunc(renderer, gc, path, IdentityTransform())
def _draw_steps_mid(self, renderer, gc, path, trans):
@@ -703,7 +719,7 @@
path = Path(steps)
path = path.transformed(self.get_transform())
- self._draw_solid(renderer, gc, path, IdentityTransform())
+ self._stepslineFunc(renderer, gc, path, IdentityTransform())
def _draw_dashed(self, renderer, gc, path, trans):
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