Re: [Matplotlib-users] Setting linestyle of contours with negative values problem

[Mark B. <ma...@gm...>]

Works for me.
Thanks, Mark

On 6/11/07, Eric Firing <ef...@ha...> wrote:
>
> Mark,
>
> Presumably the mailing list method worked at one time, but it would be
> obscure and unintuitive even if it worked now.  There are no other
> explicit dash styles given as a pair of numbers in the rc file, so the
> change I made in svn is to use the strings "solid" and "dashed"; the
> two-float specification is deprecated.
>
> Eric
>
> Mark Bakker wrote:
> > Hello -
> >
> > I tried to turn of the feature that makes contours with negative values
> > dashed.
> > According to the mailinglist this should go by setting:
> > rcParams['contour.negative_linestyle']=('None','None')
> > I tried any combination of the None, None syntax, or just 'solid', but
> > nothing worked.
> > Example shown below. I am using 0.90.1.
> > Thanks, Mark
> >
> > from pylab import *
> > x,y = meshgrid(linspace(-3,3,10),linspace(-3,3,10))
> > rcParams['contour.negative_linestyle']=('None','None')
> > contour(x,y,x,colors='b')
> >
> > Error message:
> >
> > Traceback (most recent call last):
> >   File "<pyshell#10>", line 1, in ?
> >     contour(x,y,x,colors='b')
> >   File "C:\Python24\Lib\site-packages\matplotlib\pylab.py", line 1777,
> > in contour
> >     draw_if_interactive()
> >   File
> > "C:\Python24\Lib\site-packages\matplotlib\backends\backend_tkagg.py",
> > line 59, in draw_if_interactive
> >     figManager.show()
> >   File
> > "C:\Python24\Lib\site-packages\matplotlib\backends\backend_tkagg.py",
> > line 311, in show
> >     self.canvas.draw()
> >   File
> > "C:\Python24\Lib\site-packages\matplotlib\backends\backend_tkagg.py",
> > line 154, in draw
> >     FigureCanvasAgg.draw(self)
> >   File
> > "C:\Python24\Lib\site-packages\matplotlib\backends\backend_agg.py", line
> > 392, in draw
> >     self.figure.draw(renderer)
> >   File "C:\Python24\Lib\site-packages\matplotlib\figure.py", line 601,
> > in draw
> >     for a in self.axes: a.draw(renderer)
> >   File "C:\Python24\Lib\site-packages\matplotlib\axes.py", line 1286, in
> > draw
> >     a.draw(renderer)
> >   File "C:\Python24\Lib\site-packages\matplotlib\collections.py", line
> > 700, in draw
> >     transoffset)
> > ValueError: invalid literal for float(): None
> >
> >
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