Coordination-cooperation civil 3D/hec-ras/civil 3D

[igorce]

Hello,
First of all, standard procedure,
I make a Digital terrain model(DTM) in Civil 3d, Alignment and Cross Section with Simple line. After all steps, i was create .geo file and export to Hec-Ras.
Next, i was make a correction for my reasion in CrossSectionData-XS coordinates. Basically i change some of coordinates and make a model just a want.
My question is:
Is there any way these changed coordinates(all points) import back into civil 3D and than to create new DTM?

[Anonymous]

If you change the XY of the TIN surface then you need to recreate your XSECTs and export to another GEO file for importation into HEC-RAS.

My question is the other way. How to import a HEC RAS SDF into Civil 3D. I see how to create a SDF file in 5.0.3 but I don’t see how to create a SIF file that 2016 Civil 3D wants. Any ideas out there?”

[igorce]

We have misunderstanding my friend.
In this case, i have a lot off changed points, i can’t XY coordinates one by one change in Civil 3D(to much time lost).
I’m try to find answer how to input station and elevation with original coordinates from Hec-Ras to Civil3d. After that, i will recreate model and make geo. file.
About your question, completly i agree. We will wait some who know to tell us.
But that is different problem than my.

[cameron]

If you are trying to create a surface from the modified XS in HEC-RAS, you can inside of Mapper. You can either create the surface based on the entire cross-section or just based on what is between the banks.

[Author]

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