We have approximately 30 miles of an area the will be profiled. My question is has anyone experienced large LiDAR surfaces and if Civil 3d can handle this? Should I create separate drawings for the surfaces just to break it up? I know it will create MMS files. We are currently using Civil 3D 2012.
Thanks!
Rhonda
Hi, Rhonda
I've had to break up long alignments (600+ miles) into spreads. Our client dictated the length of each spread which worked out ok - about 150 miles each. C3D balked at 600 miles but not a hiccup at 125. My alignment(s) are in a single drawing which becomes my alignment source drawing for data referencing.
I keep my LIDAR in a drawing by itself and create a surface swath along the alignment using a data boundary. I create the swath by data referencing the alignment and then offsetting it just far enough to each side to create my profile. My offsets are far enough out that I can label existing contours in my plans. Once I create the swath boundary, I can remove the data referenced alignment. This drawing becomes my surface source drawing for data referencing.
I then data reference my surface and my alignment into my profile drawing and create the profile(s).