On Sun, Mar 11, 2012 at 2:13 PM, Tony Yu <tsy...@gmail.com> wrote:
> Is it possible to draw an arrow with a dashed line?
>
> I tried using a fancy arrow patch and set the linestyle:
>
> #~~~
> import matplotlib.pyplot as plt
>
> fix, ax = plt.subplots()
> ax.set_xlim((-1,5))
> ax.set_ylim((-5,3))
>
> ax.annotate('simple', xy=(2., -1), xycoords='data',
> xytext=(100, 60), textcoords='offset points',
> size=20,
> arrowprops=dict(arrowstyle="simple",
> fc="0.6", ec="none", linestyle='dashed',
> connectionstyle="arc3,rad=0.3"),
> )
> plt.show()
> #~~~
>
> But the linestyle argument just gets ignored.
>
> Is there a way to grab the connection path object and then change that to
> a dashed line? Actually, I'm not even sure it's possible to set a linestyle
> for a Path (since dashed lines are normally Line2D). Suggestions?
>
> Thanks,
> -Tony
>
Nevermind: I though arrowstyle='simple' and arrowstyle='-|>' were the same
thing, but apparently not (I guess one draws the line as a patch, and the
other as a line). So the following works as expected:
#~~~~
import matplotlib.pyplot as plt
fix, ax = plt.subplots()
ax.set_xlim((-1,5))
ax.set_ylim((-5,3))
ax.annotate('simple', xy=(2., -1), xycoords='data',
xytext=(100, 60), textcoords='offset points',
size=20,
arrowprops=dict(arrowstyle="-|>",
fc="k", ec="k", linestyle='dashed',
connectionstyle="arc3,rad=0.3"),
)
plt.show()
#~~~
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