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Posted Fri, 24 Oct 2008 18:42:34 GMT by Pleal
I would like to know the best way to import topography from contour lines in .shp format. Can I do that?
Posted Mon, 27 Oct 2008 07:38:15 GMT by Christopherus Braun
I think FEFLOW could not directly handle contout lines. I do that mostly in the following way:
- create in ArcView or ArcGis a Surface TIN from the contourlines
- export the FEFLOW nodes as points (shapefile) and load them in the GIS
-  extract the elevation from the surface TIN at the points and add them to the shapefile
- import this to FEFLOW
This is a little bit amfward, but it works.
Posted Mon, 27 Oct 2008 13:51:54 GMT by Pleal
Thank you very much! I'll try that. If anyone knows another way to import topography, please tell me.
Posted Mon, 27 Oct 2008 14:47:53 GMT by Denim Umeshkumar Anajwala
There are also extensions for ArcGIS to divide lines into points with a fixed distance. The elevations could then be derived by a spatial join. This could avoid the TIN, wich might require a 3D Analyst / Spatial Analyst license.
Posted Mon, 27 Oct 2008 15:37:35 GMT by Pleal
OK! The problem was the coordinate system.

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