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Widenig Curves

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Message 1 of 4
wilwil02
456 Views, 3 Replies

Widenig Curves

Hi All,

 

Im using Civil 3d 2012 and I couldnt find the function that I could offset the smooth curve aligment as shown on the attached pdf. I've looked thru the offset alignments but those linear, curve-cuve-reverse curve, curve-line curve doesn't help much. I would appreciate it if anyone might know the solution.

 

Regards

3 REPLIES 3
Message 2 of 4
wfberry
in reply to: wilwil02

You will probably need a spiral.  It appears you probably have a "varying" radius.

 

Bill

Message 3 of 4
BrianHailey
in reply to: wilwil02

When applying a widening through a curve it does not create a smooth transition. It segments it along the curve (I believe in 3 segments).

 

After a bit of testing, I've confirmed this:

alignment_widening.png

The green line is the alignment and the white line is the offset alignment that transitions it's width from start to end of curve.

Brian J. Hailey, P.E.



GEI Consultants
My Civil 3D Blog

Message 4 of 4
mjung
in reply to: BrianHailey

Has anyone figured out a way to dynamically increase the smoothness of the transition? Or an I stuck doing the transition manually to get it to look right? Seems like there should be a setting somewhere for this.


Civil 3D 2024 / Windows 11 Pro (64bit)
Intel Core I7 @3.30GHz / 32gig RAM / NVIDIA Quadro K2200

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