On Wed, 16 Aug 2023, Stijn Tallir wrote:
Hi,
According to the documentation gdal and ogr use the same algorithm for the
tps-transformation but I don't seem to get the same results using the same
set of gcp's for images and vectors.
I have images that are unreferenced and vector data digitised on these
images (in pixel coordinates).
The images are then georeferenced with +100 gcp's and warped with gdalwarp
using the "tps" option.
When I use the same gcp's (with adjusted y-origin to lower left corner) to
georeference the vector data with ogr2ogr and the "tps" option I get
different results. The vector-result is similar to the image-result but
never exactly the same and differences can be substantial.
Is AREA_OR_POINT set ?
--
Andrew C. Aitchison Kendal, UK
and...@aitchison.me.uk
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev
