I was just speaking with someone at AGTEK and I mentioned your issue. The person I spoke with told me that AGTEK support has a seat of C3D and support should be able to get your surface into AGTEK ... but they suggested that rather than trying to get the C3D DTM into AGTEK the solution might be to export C3D's breaklines and other 3D linework to DWG, then import that into AGTEK and let AGTEK generate the TIN. I don't know who you spoke with in tech support, but I'm told Greg Klose is the AGTEK technician most familiar w/ C3D--perhaps you should upload your C3D data file(s) to Greg's attention and see if he can come up with a series of steps that will work for you.
Michael Cope Authorized AGTEK Software Training Earthwork Software Services, LLC www.EarthworkSoftwareServices.com
Thanks that information helps a lot! [Description: Description: Description: C:\Users\Owner\Desktop\CLThompson 0_4inch 2011.jpg] Wade Burcham, P.E., LEED AP BD+C Senior Engineer thompsonengineering 251.604.8006(c) I 251.378.6118(o) I 251.666.6422(f) firstname.lastname@example.org 2970 Cottage Hill Road, Suite 190, Mobile, Alabama 36606 www.thompsonengineering.com