Cross Section view projected feature line problem

[caddman73508226]

I have a set of cross section views in which I have projected feature lines representing existing edge of pavement and existing right of way. I have set the elevations for these feature lines to elevations from surface. Most of the lines fall directly on the surface however in a few of the views the row will either be above the surface or below the surface and not on the existing surface where they should be. I have checked the surface and it is correct. Has anyone else encountered this problem and is ther a fix?
I am using 2012 civil 3d.

Thank You

[mjfarrell]

This would suggest that one ADD and Elevation Point <from Surface> exactly at the sample line station.
The thought bing that your feature line segment is present at that station, and not at a vertex along that feature line.

[mjfarrell]

Another option, insert the Generic sub assembly Link Width and Slope for each into your assembly; targeting the feature line(s) and surface. Then get your labels from the assembly code set and not from projecting the feature lines.
Set the Link to OMIT and you'll be set to go.

[caddman73508226]

I do not have an assembly in these views. I am just plotting these for my project manager so he can do his vertical design for me to enter into cadd at a later time. Do I really need to create an assembly or is there a way to force the fetaure line to the surface in those locations where it is off. I am new to the this civil 3d stuff just trying to find a quick solution.

Thank You

[mjfarrell]

I do not have an assembly in these views. I am just plotting these for my project manager so he can do his vertical design for me to enter into cadd at a later time. Do I really need to create an assembly or is there a way to force the fetaure line to the surface in those locations where it is off. I am new to the this civil 3d stuff just trying to find a quick solution.

Thank You

See the comment regarding adding a(n) Elevation Point to the feature line at the sampled station(s)

Select the Feature Line>>Edit Elevations>>Insert Elevation Point.


In the future you might try Create Feature Line>>From Objects>>Assign Elevations>>From Surface toggle the option to aquire elevations AT Intermediate grade brakes instead.

This will ensure that your feature ine has an elevation set everywhere it crosses the TIN.
It may also produce an warning regarding the number of vertices being generated as well.

[caddman73508226]

That is how i assigned the elevations. I activated that toggle when I created my feature lines.

Thank You

[mjfarrell]

That is how i assigned the elevations. I activated that toggle when I created my feature lines.

Thank You

As this is for preliminary design analysis I would then A) assume that it is close enough to start the design
B) verify a random sample of vertex elevations actually match the surface elevations with spot elevation labels, both in the section and on the surface model.

I would happily review the data to determine if there was any error in the data, or an underlying cause to what you are seeing in the section views.