I'm having issues with FG and Civil 3d. The main problem is using the C3 or the spline line option in FG for linework. Arcs sometimes just don't look that great when they come in, and the crews are doing their own cleanup. To clean the arc up, they are exploding the figure and manually cleaning the line and then defining a new figure. But during the process they don't check the elevations of the vertices. So they are using proximity breaklines only. If they used standard breaklines all the arc work great. I don't see a way to use some proximity breaklines and others using Standard breaklines.

Does anyone have a good method to clean up curve lines?

Side note: FG has a great way to export an xml file for CAiCE to import, but in all my searching, there is no way to bring that data into C3D. Anyone have suggestions?