Reply To: 3 point curve


This is very simple to do. Set up your traverse with points 1, 2, 3, 4 and 5 in the sequence you choose. Select points 1, 2 and 3 and choose COGO | Fit Horizontal Curve. When you apply the results, you will have what you have asked for. Next, do the same with 3, 4 and 5. If you don’t want points 2 and 4 to be parts of the curve, change their point types to sideshots and leave the two curves 1-3 and 3-4.

You might want to check out the chapter on Horizontal Curves in the Alignments Learning Guide. It is available to you via the Learning Guides link in the Learning Center as well as from the Tasks Manager in TPC Desktop.