Hi,
this snippet works if there are more (or less) elements in the menMeans
tuple. If
there are three, it does not work since the bar command thinks the three
element tuple is a tuple of rgb values. But it is a (r, g, b) tuple.
I think it is a bug. Should I create a ticket?
I use 0.98.3
I helped myself by using rgb2hex. But somehow this is not a good solution.
Maybe colorConverter.to_rgb should return a subclass of tuple called
'ColorTuple'.
This way it would be easier to distinguish between a tuple of rgb values
and a rgb color tuple.
{{{
#!/usr/bin/env python
import numpy as np
import matplotlib.pyplot as plt
import matplotlib
cmap=matplotlib.cm.jet
menMeans = (20, 35, 30) # Does work if there are more or less then three
elements in the tuple
N=len(menMeans)
ind = np.arange(N) # the x locations for the groups
width = 0.35 # the width of the bars
plt.subplot(111)
color=matplotlib.colors.colorConverter.to_rgb(cmap(0.5))
rects1 = plt.bar(ind, menMeans, width, color=color)
plt.show()
}}}
{{{
Traceback (most recent call last):
File
"/usr/lib64/python2.5/site-packages/matplotlib/backends/backend_gtk.py",
line 333, in expose_event
self._render_figure(self._pixmap, w, h)
File
"/usr/lib64/python2.5/site-packages/matplotlib/backends/backend_gtkagg.py",
line 75, in _render_figure
FigureCanvasAgg.draw(self)
File
"/usr/lib64/python2.5/site-packages/matplotlib/backends/backend_agg.py",
line 261, in draw
self.figure.draw(self.renderer)
File "/usr/lib64/python2.5/site-packages/matplotlib/figure.py", line
759, in draw
for a in self.axes: a.draw(renderer)
File "/usr/lib64/python2.5/site-packages/matplotlib/axes.py", line
1523, in draw
a.draw(renderer)
File "/usr/lib64/python2.5/site-packages/matplotlib/patches.py", line
275, in draw
rgbFace = colors.colorConverter.to_rgb(self._facecolor)
File "/usr/lib64/python2.5/site-packages/matplotlib/colors.py", line
280, in to_rgb
raise ValueError('to_rgb: Invalid rgb arg "%s"\n%s' % (str(arg), exc))
ValueError: to_rgb: Invalid rgb arg "0,490196078431"
}}}
--
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de
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