1
vote
1answer
27 views

Searching 'select by color' for raster or map data

I'm planing to create an online map component with which the user can create/draw polygons based on underlying raster data. Is there some library / tool / procedure existing which enables the ...
-2
votes
1answer
573 views

How to digitize a map in QGIS?

I am relatively new to QGIS and using it on windows vista. Problem: I have to digitalise an aerial map and then extract the coordinates. I have absolutely no idea how to start Thanking you in ...
14
votes
7answers
3k views

Is it easy to digitize in ArcGIS using the Wacom tablet?

I do just enough digitizing (and touching up/ drawing when post-processing) to perhaps warrant the purchase of a Wacom tablet. Just wondering how well it plays with ArcGIS. What are your experiences? ...