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1 vote
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882 views

Georeferencing based on ArcGIS basemap?

I have a scanned image (tiff) of a historic map, with no information of the used coordinate system, which I want to georeference, to finally be part of a WebMap application with Leaflet. As far as I ...
the_chimp's user avatar
  • 883
3 votes
1 answer
32k views

Adding online basemap in ArcMap [closed]

How can I add an external online map in ArcMap by inserting the http address, to use as a basemap in order to georeference multiple aerial photos? I don't really care about the precision of the ...
Nikos's user avatar
  • 380