I am trying to reference an image to a map using the georef plugin. We have images from electrical resistivity tomography which are normal pngs with image coordinates. and we have measured points in the field by an RTK GPS measurement. What I need is a linear referencing of the image (only worldfile) with shift, scale and rotate. The image below shows the situation:
The result is anywhere but not on the section line. the worldfile result is like this:
as you see, there is no rotation, it should be like this - done with ArcGIS reference tool with 2 points:
what I am doing wrong? any hints or help would be great, because we want to move completly from ArcGis to QGIS...