[Qgis-developer] Georeferencer: not rotating if using Linear transformation

[Lauri Kajan]

Hi Paolo,

Linear transformation creates only a world file and doesn't transform the
raster if the user manual can be trusted.
What you described sounds like a Helmert transformation which uses
coordinate offset, rotation and scale as parameters.


-Lauri



On Thu, Apr 3, 2014 at 2:50 PM, Paolo Cavallini <cavallini at faunalia.it>wrote:

> Hi all.
> I always assumed that Linear transformation implied a rototranslation
> with stretching, but from our tests it seems that a rotation is never
> applied: is this intentional? If so, perhaps the user should be warned
> about this.
> Thanks.
> --
> Paolo Cavallini - www.faunalia.eu
> QGIS & PostGIS courses: http://www.faunalia.eu/training.html
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