[geos-devel] strange behavior with offsetCurve, resulting points get resorted

Sandro Santilli strk at keybit.net
Sun Oct 20 03:49:38 PDT 2013

On Tue, Oct 15, 2013 at 09:49:08AM +0200, Swen Zanon wrote:
> unhappily not always. If you take a look at this geometry
> (practically a circle), you can see, that after processing with
> negative offset the first point gets into the middle of the
> resulting geometry, so reversing wont be helpful.

The two geometries you show are offsetted on the right side,
thus order is reverted. 

Here's a screenshot: http://strk.keybit.net/tmp/circlces.png

I don't understand what you say about first point getting into the
middle of the resulting geometry.


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