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Import geometry from Autocad Civil 3D 2010 to HEC-

Printed From: CAD Forum
Category: EN
Forum Name: Civil 3D, Map, InfraWorks
Forum Description: Discussion about mapping and GIS applications Map, Civil3D, InfraWorks, MapGuide and Raster Design
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=11167
Printed Date: 29.Sep.2026 at 14:24


Topic: Import geometry from Autocad Civil 3D 2010 to HEC-
Posted By: LucasI
Subject: Import geometry from Autocad Civil 3D 2010 to HEC-
Date Posted: 13.May.2015 at 16:46
I want to import geometry from a Autocad Civil 3D 2010 file to HEC RAS, but I have some conditions.

My CAD file has no surface, but it has points. Some of them belong to cross sections and others are in the alignment (Talweg), especially in curves. Therefore this points in talweg (the ones which do not correspond to cross sections) define the curves.

I have also 3D polylines that defines the alignment and the banks.

So, I want to export the geometry with these curves and not to have straight lines between cross sections, as the following figure shows.

Thank you very much!

Figure: 
http://imageshack.com/a/img540/9176/aDbBye.jpg" rel="nofollow - http://imageshack.com/a/img540/9176/aDbBye.jpg

Autocad File: 
https://drive.google.com/file/d/0B4HAkN9S1VnsSWR6ckRrTDhodzA/view?usp=sharing" rel="nofollow - https://drive.google.com/file/d/0B4HAkN9S1VnsSWR6ckRrTDhodzA/view?usp=sharing



Replies:
Posted By: Novarese
Date Posted: 15.May.2015 at 11:22

In a brand new EPSG:5345 drawing, load the attachment thru the _LANDXMLIN command: what happens?

uploads/249910/San_Miguel_de_Tucuman.zip" rel="nofollow - uploads/249910/San_Miguel_de_Tucuman.zip



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