ransara Posted April 14, 2016 Report Share Posted April 14, 2016 hi..GIS experts, What is the best and accurate method of creating a DEM with Contours and spot levels ? any detailed explanation is greatly appreciated. Thanks Quote Link to comment Share on other sites More sharing options...
Lurker Posted April 15, 2016 Report Share Posted April 15, 2016 basically when you use Contours and point data, the output result is based on the accuracy of the input data basically in arcgis you will do the following order , input data - tin surface - DEM raster 1 Quote Link to comment Share on other sites More sharing options...
ransara Posted April 15, 2016 Author Report Share Posted April 15, 2016 Thanks Lurker, Quote Link to comment Share on other sites More sharing options...
sz_option Posted April 16, 2016 Report Share Posted April 16, 2016 mr. Lurker, how about point photogrammetry uav? how to generate dtm from dem data? dem ~ point cloud surface any suggestion? appreciate for your advice thanks Quote Link to comment Share on other sites More sharing options...
mostafa Posted April 17, 2016 Report Share Posted April 17, 2016 if you have stereo pair imagery with GCP file you can generate high resolution DEM up to 50cm by photogrammetry software. Quote Link to comment Share on other sites More sharing options...
ransara Posted April 17, 2016 Author Report Share Posted April 17, 2016 i tried with Erdas ....directly converted into Raster file... Quote Link to comment Share on other sites More sharing options...
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