![]() ![]() Okay now that you have your images saved let’s fire up ArcMAP and launch the GEOREFERENCING toobar. I would recommend scanning to JPEG or TIF either will do fine. Hopefully there aren’t too many maps and the polygons are concentrated in smaller areas that fit nicely on your scanner. So as I mentioned above you’ll need to scan the map. If you don’t have a digitizer it’s probably the best option…besides I’ve never been a fan of the on-screen digimonkey thing. I’m going to quickly run throught the third option. Scan the map, georeference the image and trace the polygons. Eye-ball it off the map – often called ‘heads-up digitizing’ or ‘on-screen digitizing’ orģ. ![]() In my opinion, you bascially have three options:Ģ. They want it in the GIS so you can make a pretty map for them and run some analysis. Scenario: Someone gives you a hardcopy map with a couple of polygons hand drawn on it.
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