At its core, the link between AutoCAD and Civil 3D is built on the fact that Civil 3D is built directly on top of the AutoCAD platform. Every Civil 3D file is natively a .DWG file. However, a standard 2D AutoCAD drawing lacks the "intelligence" of Civil 3D objects like alignments, surfaces, and pressure pipes. The link usually refers to one of three workflows:
LINE Global length: 0.0000 Delta X = 0.0000, Delta Y = 0.0000 Start point: X= 743.1129, Y= 129.4476 (World) End point: X= 743.1129, Y= 129.4476 (World)
