Re: [Matplotlib-users] how do I specify the line join and cap style?

[gary r. <gr...@bi...>]

Thanks for the workaround JJ. I've filed a feature request,

Gary

On Mon, Dec 13, 2010 at 9:54 PM, Jae-Joon Lee <lee...@gm...> wrote:
> It seems that there is no option to change join and cap style for
> patches (only lines have them).
> While there could be other ways, one workaround is to use patheffect.
>
> Below is a modified version of your example.
>
> Meanwhile, I think the situation needs to be fixed, i.e., Patches
> should implement set_capstyle and set_joinstyle. Can you file a
> feature request on the tracker?
>
> Regards,
>
> -JJ
>
>
>
> import matplotlib.pyplot as plt
> from mpl_toolkits.axes_grid1.anchored_artists import AnchoredSizeBar
>
> from matplotlib.patheffects import Stroke
>
> def add_sizebar(ax, size):
>  asb =  AnchoredSizeBar(ax.transData,
>    size,
>    str(size),
>    loc=8,
>    pad=0.1, borderpad=0.5, sep=5,
>    frameon=False)
>  ax.add_artist(asb)
>
>  mypatch = asb.size_bar.get_children()[0]
>  mypatch.set_path_effects([Stroke(joinstyle='miter',
>                                  capstyle='butt')]) # override
> joinstyle and capstyle
>
> add_sizebar(plt.gca(), 0.5)
>
>
> plt.draw()
> plt.show()
>
>
>
>
> On Mon, Dec 13, 2010 at 9:16 AM, gary ruben <gr...@bi...> wrote:
>> Is it possible to control the join and cap styles of lines and
>> patches? Is there an example for this? I'm trying to add a scale
>> marker to a plot, but lines have rounded ends by default, so I'm
>> currently changing these manually in Inkscape to miter join and butt
>> cap. Here is a minimal example, based on the code here:
>>
>> import matplotlib.pyplot as plt
>> from mpl_toolkits.axes_grid1.anchored_artists import AnchoredSizeBar
>>
>> def add_sizebar(ax, size):
>>  asb =  AnchoredSizeBar(ax.transData,
>>     size,
>>     str(size),
>>     loc=8,
>>     pad=0.1, borderpad=0.5, sep=5,
>>     frameon=False)
>>  ax.add_artist(asb)
>>
>> add_sizebar(plt.gca(), 0.5)
>>
>> plt.draw()
>> plt.show()
>>
>>
>> What I'd like is a 2pt wide line with butt-style cap ends,
>>
>> thanks,
>> Gary
>>
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>