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Lets say for example, I have points 1, 2, & 3. I want to draw an arc so that point 1 is the PC, point 2 is the POC, & point 3 is the PT.
Adding to this example, lets say I have points 4 & 5. How do I draw another arc such that point 3 is the PC, point 4 is the POC, & point 5 is the PT.This curve may be a reverse or compound curve. I wouldn’t think it would matter.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.
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