Am 29.05.2013 15:12, schrieb image:
Hello,

I would like georeferencing a scan image with 4 points. I send you 2 SS :
one representing the georeferencer window and a 2nd representing the
image_georef generated.

Why there is a shift beteween my points and the image generated?


I think you got two things wrong:

- eastern coordiantes are positive, Western negative.
- coordinates must be in decimal degrees, not degrees.minuteseconds.

According to wikipedia, the Aitutaki atoll is at

18° 51′ 0″ S, 159° 47′ 9″ W
-18.85°, -159.785833°

HTH,
André Joost


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