On Friday 09 November 2007 09:24:25 am Peter-Jan Randewijk wrote:
> Hi Darren, John, Eric,
>
> Has the issue regarding, edgecolor='None', been resolved or is this
> still work in progress.
>
> I am busy with a presentation using LaTeX's Beamer class with a
> "corporate gradiented grayish background".
>
> With matplotlib and facecolor=None it almost looks nice, except for the
> white edgecolor sticking out on the left of the graph, see attached PDF.
>
> As edgecolor=None isn't working, is there another way of getting rid of
> this white edge....?
I think it has not been resolved. I am not so familiar with the mpl's color
handling code, and I need to turn to "official business" for the rest of the
day. John or Eric, do you have time to look into this? The string 'None' is
supposedly a valid argument, but:
In [1]: plot([1,2])
Out[1]: [<matplotlib.lines.Line2D instance at 0x2b18a14228c0>]
In [2]: savefig('dsd.png', facecolor='None', edgecolor='None')
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/darren/<ipython console> in <module>()
/usr/lib64/python2.5/site-packages/matplotlib/pyplot.py in savefig(*args,
**kwargs)
267 def savefig(*args, **kwargs):
268 fig = gcf()
--> 269 return fig.savefig(*args, **kwargs)
270 if Figure.savefig.__doc__ is not None:
271 savefig.__doc__ = dedent(Figure.savefig.__doc__)
/usr/lib64/python2.5/site-packages/matplotlib/figure.py in savefig(self,
*args, **kwargs)
768 kwargs[key] = rcParams['savefig.%s'%key]
769
--> 770 self.canvas.print_figure(*args, **kwargs)
771
772 def colorbar(self, mappable, cax=None, ax=None, **kw):
/usr/lib64/python2.5/site-packages/matplotlib/backend_bases.py in
print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format,
**kwargs)
1194 edgecolor=edgecolor,
1195 orientation=orientation,
-> 1196 **kwargs)
1197 finally:
1198 self.figure.dpi.set(origDPI)
/usr/lib64/python2.5/site-packages/matplotlib/backends/backend_gtkagg.py in
print_png(self, filename, *args, **kwargs)
101 # Do this so we can save the resolution of figure in the PNG
file
102 agg = self.switch_backends(FigureCanvasAgg)
--> 103 return agg.print_png(filename, *args, **kwargs)
104
105 """\
/usr/lib64/python2.5/site-packages/matplotlib/backends/backend_agg.py in
print_png(self, filename, *args, **kwargs)
415
416 def print_png(self, filename, *args, **kwargs):
--> 417 self.draw()
418 self.get_renderer()._renderer.write_png(str(filename),
self.figure.dpi.get())
419
/usr/lib64/python2.5/site-packages/matplotlib/backends/backend_agg.py in
draw(self)
377
378 self.renderer = self.get_renderer()
--> 379 self.figure.draw(self.renderer)
380
381 def get_renderer(self):
/usr/lib64/python2.5/site-packages/matplotlib/figure.py in draw(self,
renderer)
586 self.transFigure.freeze() # eval the lazy objects
587
--> 588 if self.frameon: self.figurePatch.draw(renderer)
589
590 for p in self.patches: p.draw(renderer)
/usr/lib64/python2.5/site-packages/matplotlib/patches.py in draw(self,
renderer)
199 #renderer.open_group('patch')
200 gc = renderer.new_gc()
--> 201 gc.set_foreground(self._edgecolor)
202 gc.set_linewidth(self._linewidth)
203 gc.set_alpha(self._alpha)
/usr/lib64/python2.5/site-packages/matplotlib/backend_bases.py in
set_foreground(self, fg, isRGB)
617 self._rgb = fg
618 else:
--> 619 self._rgb = colors.colorConverter.to_rgb(fg)
620
621 def set_graylevel(self, frac):
/usr/lib64/python2.5/site-packages/matplotlib/colors.py in to_rgb(self, arg)
277
278 except (KeyError, ValueError, TypeError), exc:
--> 279 raise ValueError('to_rgb: Invalid rgb arg "%s"\n%s' %
(str(arg), exc))
280 # Error messages could be improved by handling TypeError
281 # separately; but this should be rare and not too hard
ValueError: to_rgb: Invalid rgb arg "None"
invalid literal for float(): None
-------------------------------------------------------------------------
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