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Generate line features for canals from DTM

Question asked by vitola on Nov 16, 2017

Dear all,

I have to digitize lines for a large number of canals using a 1m DEM. How can I do it with a minimal time investment? The canals/drainage ditches are quite narrow so the DTM is too coarse but it has a decent representation of the locations and elevations at least. Also, I would like to get the canal start and end point elevations.


Great thanks to anyone who can help!