[postgis-devel] topology : finding if the ring is an inner ring or outer ring
strk at keybit.net
Fri Feb 20 02:57:50 PST 2015
On Fri, Feb 20, 2015 at 11:26:16AM +0100, Rémi Cura wrote:
> I wanted to avoid the computing of winding.
> But now I doubt it is possible.
> Instead of winding I chose to compute signed area, because I'm afraid
> robust winding may be difficult.
Indeed I was thinking about exposing some function to allow computing
signed area of single edges. Maybe ST_SignedArea ?
See http://trac.osgeo.org/postgis/ticket/1498, comments welcome there.
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