#1 Mon 05 June 2023 07:28
- fasgya30
- Membre
- Date d'inscription: 5 Jun 2023
- Messages: 1
[ACAD MAP/CIVIL] Courbe de niveau releve topographique
I've done the method of downloading a DEM from a database, generate contours on Global Mapper, QGIS or ArcGis, and upon exporting them to DXF, I can open them on Civil 3D and build a surface, but the base elevation starts from 0m so I can't work with that since I need the real elevation to match my field work.
I've also tried doing it with Google Earth by building a path, saving that to .kml, make that into coordinates and elevation data through GPS Visualizer and then making a DEM from that on the above mentioned software, but this way I can only generate contours and visualize them properly as vectors, but upon generating a surface from them the coordinates, elevation and size are all over the place.
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#2 Mon 05 June 2023 08:44
- olivier.eckmann
- Membre
- Date d'inscription: 14 Dec 2007
- Messages: 338
Re: [ACAD MAP/CIVIL] Courbe de niveau releve topographique
Hi,
Why don't you create directly surface from DEM in Civil 3D ?
https://help.autodesk.com/view/CIV3D/20 … 52852191AC
Olivier
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