Help with points along an alignment in 2006 Civil 3D

[wilsonk]

Ok. So I am a new user to 2006 Civil 3D so you gurus out there go easy. I would like pick point objects along an alignment at variable offsets (i.e. Top of curb or Lip) and create a text file of alignment station and point elevation. Is this possible??

[MHultgren]

Hi WilsonK (Sorry don't have your name)
There are a couple ways you can do this. It depends on what you need. You can manually place (Create Points - Manual) at the locations you want and use a Corridor as the reference surface once you have it built, then create a Point Group and include these points (Similar to LDT), then export that point group to a CSV or ASCII or even a LandXML file that you can create a report on with the data you require in a nice neat format. I would suggest building your corridor first, you will need an existing surface, an alignment and a Profile, once you have those three built, create an assembly (similar to a Template in LDT) and create your corridor. This way, when you make a change to the alignment of vertical profile, your surface will update and so will your Point elevations!

[sinc]

How do you get point elevations to update automatically to a surface? I thought it was necessary to run the "Elevations from suface..." command to update the point elevations if the surface changes...

[MHultgren]

Hi Sinc,
If you use a reference text object in the Point Label that references the corridor or fg surface. When you update the surface, then do a regenall and the labels will update as well.

[wilsonk]

Thanks MHultgren..I will try that and get back to you

[sinc]

Hi Sinc,
If you use a reference text object in the Point Label that references the corridor or fg surface.

So the elevation of the point doesn't change? Just the reference text in the point label?

[MHultgren]

Hi Sinc,
The trick is attaching the point to an object within the Corridor. Like an endpoint or midpoint of a curve. RP's are a bit tricky though, since there is nothing to attach to except a node. Using the Elevation from surface will autoupdate for you though after a regen as well.