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 <gru...@bigpond.net.au> 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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