[geos-devel] Polygon rotation

Mateusz Loskot mateusz at loskot.net
Sun May 27 16:17:36 EDT 2007


Olivier Tournaire wrote:
> Hi all,
> 
> I am new to GEOS, and I would like to know how to perform a rotation
> on a polygon, or a geometry.

Oliver,

Affine transformations are not implemented (yet), so there is no
rotation support in GEOS.
They are available in the original JTS package, but not in GEOS.
The only possibility I see now is to make some
implementation on your own.

Cheers
--
Mateusz Loskot
http://mateusz.loskot.net



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