Reading the documentation always helps. The GeomTransform takes the
upper left corner as the origin, not the lower left, as in my math
handbook. And the order of the coefficients is With some
twiddling of angles and signs I now can compute the affine
transformation of a scan based on two cont
Le jeudi 04 juillet 2013 18:12:32, Jan Hartmann a écrit :
> I'm struggling with the order of the Geotransform section in a vrt file.
> I would like to rotate an image, and computed the six parameters for the
> affine transformation. I can transform points exactly, using the
> following formula:
>
Hi Jan,
Do you mean this : http://www.gdal.org/gdal_datamodel.html (Affine
GeoTransform srection) or this http://www.gdal.org/gdal_tutorial.html
(Getting Dataset Information section)?
Also, see this:
http://www.gdal.org/classVRTDataset.html#a1531325b71e290b90c8d9cc88bce6c2b
Best regards,
I'm struggling with the order of the Geotransform section in a vrt file.
I would like to rotate an image, and computed the six parameters for the
affine transformation. I can transform points exactly, using the
following formula:
x2 = a.x1 + b.y1 + c
y2 = d.x1 + e.y1 + f
Can anyone tell me wh
