AutoCAD Civil 3D

[#1]

I'm looking for a way to determine (and preferably edit) the values of P1 and P2, the offsets of the initial tangents into the PC/PT of the shifted curve. I've searched the forum and the help, and it's not in the (admiteddly basic) book I have either. Does anyone have any ideas, please?

[Edit: OK, after double-checking,I just found Widening offset clothoid, but I'm still none the wiser.]

[#2]

In the Alignment Grid View you can add a column to display P. The value is read only, but adjusting the length of the spiral will adjust the P value.

The P value can also be added to spiral and tangent intersection labels.

Regards,

Peter Funk

Autodesk, Inc.