Get radius value from clothoid at exact station along an Alignment

[nbokhammar]

Is there a way to find out what radius value a clothoid have at an exact station along the Alignment?

[MaciejKrynski8090]

I have the same problem. I couldn't find such a thing in label style composer - I assume it should be in the chainage offset label style composer. It shouldn't be a problem for autodesk, to run this functionality - is it possible to make a hotfix or any service pack?

[Sinc]

Interesting...  You can add the Instantaneous Direction to a Station/Offset label, but not the Instantaneous Radius.  And I can't find Instantaneous Radius in any of the Reports or in the Inquiry Tool, either.

It's available, as the attached image from the DisplayAlignProf command in the Sincpac-C3D show that the value is available internally.  But I haven't yet found any way to get it with C3D's built-in commands...

[dnl999]

Hi, check this out.  Andrew.

http://forums.autodesk.com/t5/AutoCAD-Civil-3D-Customization/calculate-instantaneous-spiral-radius/m...