Problems with georeferencing in Pro

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02-27-2024 07:16 PM
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AvaFarouche
Occasional Contributor

Greetings!

I have several problems w/georeferencing in Pro that I did not have in Map, and I encountered a new one today.

When creating control points, Pro tries to snap the "from" point to the "to" point. Meaning, I create the initial point on the image, and then attempt to create the corresponding point on the basemap, and Pro tries to snap the second point to a location on the basemap - and not a point I want to snap to. This happened when there were no other layers in the map. It was a completely empty map doc, other than the basemap and the png, so there shouldn't have been anything for it to snap to.  But it kept trying to snap to a point where I didn't want the corresponding control point.

So, I used the space bar to suspend snapping, as I would when editing points in a shapefile or something like that. But when I did that while georefencing, it would turn the png layer back on so I could no longer see the baselayer and the place where I was trying to create the control point. Trying to adjust the transparency between every control point so I can see what I'm trying to connect to is a whole separate headache, and sometimes the points just disappear when I use that method.

Has anyone encountered this and do you have any advice?

I am beyond disappointed that the separate viewer window that existed in Map is not available in Pro, because that would solve so many problems. I have to say that georeferencing works much better in Pro - when I can get it to work. But I have so much more trouble creating control points and getting it to work  because the viewer window is gone, and now there is this weird snapping issue.

Any advice is greatly appreciated.

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4 Replies
RichardHowe
Occasional Contributor III

The spacebar issue was present in ArcMap as well, it would tick layers on and off after you selected them in the table of contents. The best workaround I can offer is selecting the "Main Map Frame" or whatever your map frame is called in the table of contents (so it is highlighted rather than an actual layer), prior to starting to add your control points. Then spacebar will behave as it should, overriding the snapping process.

Or alternatively just turn snapping off altogether (if you don't need it) via the edit toolbar.

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AvaFarouche
Occasional Contributor

Ah, thanks for the suggestion, Richard! I guess I never encountered this in Map because I never had this snapping issue before. I also had the separate viewer window so I could see both layers at once so it didn't matter if one of them was turning on and off; I didn't have to try to see them while they were on top of each other.

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RhettZufelt
MVP Frequent Contributor

You say it is snapping without any other layers?  Do you by chance have the grid turned on with snapping?

RhettZufelt_1-1709142435368.png

R_

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AvaFarouche
Occasional Contributor

Thanks for the idea, Rhett. No I do not.

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