Thanks, that fixed it. Both for the example (see attachment) and for my own document.

So this branch resolved the issue.

Moglliii

On 27/10/2011 17:53, Michael Droettboom wrote:
It looks like the polygons that make up the arrows were not being closed correctly, so the PDF renderer was not joining the ends of the stroke.

Can you confirm that this branch resolves your issue?

https://github.com/matplotlib/matplotlib/pull/559

Mike

On 10/27/2011 11:36 AM, mogliii wrote:
This is the code
http://matplotlib.sourceforge.net/mpl_examples/pylab_examples/arrow_demo.py

Its this example from the gallery page
http://matplotlib.sourceforge.net/examples/pylab_examples/arrow_demo.html

Basically I see the same artifacts in my own plots, using the following
command:
ax1.arrow(9.5,15,0,-9.6,head_width=0.45,head_length=3,fc='k', length_includes_head=True)



On 27/10/2011 15:56, Daniel Hyams wrote:
I think that the code that generated the screenshot needs to be
posted; otherwise no one knows what is being attempted....

On Thu, Oct 27, 2011 at 10:50 AM, mogliii <mogliii@gmx.net> wrote:
Hi,

I am trying to place some arrows using
http://matplotlib.sourceforge.net/api/axes_api.html?highlight=arrow#matplotlib.axes.Axes.arrow

And unfortunately the arrows are not nice (see attached screenshot). How
can the line end be changed to "round" as, for example, with plot. Or
anyone can give a solution?

For very small print this might be acceptable, but not if the
arrow/linewidth is larger.


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