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To georeference a raster you need to use the Georeferencing toolbar. The Spatial Adjustment toolbar is for vector data.
As I mentioned, I am not having any trouble georeferencing the data! I can't figure out how to rubbersheet it. Also, the help documentation says nothing about the spatial adjustment toolbar being only for vector data.
Let me know if you have any other tips.
IF you have rasters with only line drawings then covert them to black and white and run them through ArcScan. The resulting vectors can be spatially adjusted. I typically do this for survey plans or old property boundary drawings. I was under the impression that the georeferencing toolbar is the only way to adjust a raster.
Perhaps too you could just use more control points. I've gone as high as 30 control points trying to georeference a 2ha drawing from the 1930's. It's a bit of an art.
Thanks withershin, I will probably use the georeferencing technique you suggested. This will most likely make the RMS error increase, but we've decided to ignore that.
I get through the georeferencing process just fine. After I start an editing session (pointing to the workspace containing the raster), then I try to "Set Adjust Data" on the Spatial Adjustment toolbar. However the window is empty, listing no data at all. The raster data is not being recognized for some reason.
The raster data is not recognized by the Spatial Adjustment toolbar because it only works on vector data.
If you re-read withershin's comments, he said to convert the raster to vector data which can then be spatially adjusted. If you want to rubbersheet your raster, withershin's suggestion to convert from raster to vector using ArcScan is valid, which will allow you to use the Spatial Adjustment toolbar on the resulting vector data.