Hi,
We have just posted a video on the new Surface .NET API in AutoCAD Civil 3D 2012. The recoded video and the associated API samples are available for download from the link below -
Video : AutoCAD Civil 3D 2012 Surface .NET API
A self-paced video tutorial demonstrating the new Surface objects and related function in AutoCAD 2012 .NET API.
View online | Download
Check it out, this might be useful to you!
Thanks,
Partha Sarkar
Autodesk Developer Network
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