Re: [Matplotlib-users] cross hatching in contours?

[Phil E. <pel...@gm...>]

As of matplotlib v1.2.0 you can hatch a contour set directly. There is an
example in the gallery:

http://matplotlib.org/examples/pylab_examples/contourf_hatching.html

Hope that helps,

Phil


On 5 December 2012 17:28, spencerahill <spe...@gm...> wrote:

> Jae-Joon Lee wrote
> > On Thu, Sep 15, 2011 at 10:33 PM, Jonathan Slavin
> > &lt;
>
> > jslavin@.harvard
>
> > &gt; wrote:
> >> I'm wondering if there is some way to do cross hatching as a way to fill
> >> contours rather than colors (using contourf).  The only references to
> >> cross hatching I see in the documentation are for patches type objects.
> >> As far as I can tell, contour and contourf return objects of their own
> >> type (contour.QuadContourSet) that do not have hatch as an attribute.
> >>
> >
> > Yes, it seems that hatching is only supported in patches.
> > You may workaround this by converting contours to multiple patches.
> > See the attachment.
> >
> > Matplotlib-users mailing list
>
> > Matplotlib-users@.sourceforge
>
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
> >
> >
> > contour_to_hatched_patches.py (1K)
> > &lt;
> http://matplotlib.1069221.n5.nabble.com/attachment/23/0/contour_to_hatched_patches.py&gt
> ;
>
> Hi Jae-Joon,
>
> Your contour_to_hatched_patches.py script works excellently. Is there a way
> to suppress the contour lines and filling, leaving only stippling? I have
> been experimenting with it but no luck.
>
> I have a contourf of a 2D variable and a separate 2D array indicating
> regions of statistical significance (i.e. a mask, which equals 1 in cells
> where the variable is significant and equals 0 else), and I want to put
> black hatching over the contourf where it is significant. I can get this to
> work, but still with a black contour line surrounding the hatched region.
> I'd like to remove the line, leaving just the hatching. Thanks!
>
> Best,
> Spencer
>
>
>
>
> --
> View this message in context:
> http://matplotlib.1069221.n5.nabble.com/cross-hatching-in-contours-tp22p39945.html
> Sent from the matplotlib - users mailing list archive at Nabble.com.
>
>
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