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I'm georeferencing a map (jpeg) in UTM coordinates and everything works fine exept, i the referencer window doesn't give me any residuals or dX/dY values. When I change the coordinates of a point on purpose, some dX/dY values occasionally show a minus sign, so Qgis does do something.

Is there a setting or something else I´m missing here, or is this a bug?

  • Did you set transformation kind? – aldo_tapia Jan 10 '18 at 10:17
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Never mind, I solved it. I know its bad to answer your own question but i think its helpful if others run into the same problem:

Apparently the transformation method I used had a problem for reasons I don´t know yet, but once I changed the method in the transformation options, all values appeared. :)

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  • Can you add which transformation method worked for you, and which failed? – AndreJ Apr 2 '14 at 4:11
  • Sure. I used 6 reference points on an .jpeg map, coordinate system UTM14N with WGS84. Polynomial 2 failed, Polynomial 1 worked. – martin Apr 2 '14 at 14:55
  • Maybe related to this bug: hub.qgis.org/issues/9575. I prefer thin plate spline. – AndreJ Apr 2 '14 at 15:35
  • We encourage folks to answer their own questions if they found a viable solution! – Aaron Jan 4 '18 at 4:46

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