On Wed, Nov 10, 2010 at 1:01 AM, Jason Grout <jason-s...@creativetrax.com> wrote: > Is the tip of the arrow (after the miter join) supposed to hit (1,1), or is > the center of the line supposed to hit (1,1)? Or maybe the tip of the > joinstyle='round' arrow (the default) is supposed to hit (1,1)? >
The tip of the arrow is meant to hit (1,1), which is done by the
underlying arrow class adjusting the end point of the path during the
drawing time. This only happens for arrowstyle "->" and etc.
However, there was an incorrect arithmetic which I think is fixed now.
The patch is attached (it also fixes dpi-related issues).
I'm not sure it would be better if this could be optionally turned
off. Any suggestion?
Let me know of any (persisting or other) issues.
FYI, path is shortened by small amount by default. This is controlled
by *shrink* parameter (shrinkA and shrinkB shortens the line begin and
the line end respectively.)
aa = ax.annotate('', (1,1), (0,0),
arrowprops=dict(arrowstyle="-|>",
fc="k", ec="k",lw=50,
shrinkB=0,
path_effects=[Stroke(joinstyle='miter')]
)
Also, I noticed that the arrow head is not correctly filled when
path_effects are in use. This is now fixed.
Regards,
-JJ
arrow.patch
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