On Wed, Mar 13, 2013 at 2:17 AM, Andrew Dawson <daw...@atm.ox.ac.uk> wrote:
> You should see that the circle is no longer circular, and also there are
> weird line width issues. What I want it basically exactly like the attached
> without_clipping.png but with paths inside the circle removed.
The reason that circle is no more circle is that simply inverting the
vertices does not always results in a correctly inverted path.
Instead of following line.
interior.vertices = interior.vertices[::-1]
You should use something like below.
interior = mpath.Path(np.concatenate([interior.vertices[-2::-1],
interior.vertices[-1:]]),
interior.codes)
It would be good if we have a method to invert a path.
This will give you a circle. But the weird line width issue remains. This
seems to be an Agg issue, and the line width seems to depend on the dpi.
I guess @mdboom nay have some insight on this.
Regards,
-JJ
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