Civil 3D - Sample sections from Ascii file

[Anonymous]

We developed a macro in excel to process the points and save them in the land desktop format, so we can sample the cross section from a file (ascii "txt"). This is very necessary to us, so we can have more precise section of the existing ground, that are not interpolated.

Now we are moving to Civil 3D and noticed that this command is missing... as we can't believe that Autodesk would cut off this very simple command, we want to know where it is....

Someone, please, help!!

Thanks

Diego Schneider
Roadway Designer

[Civil3DReminders_com]

I think you you'd have to use alignment and profiles or create sample lines that go from point to point of the points that make up the section. Both methods could be automated through a macro talking with Excel.

Christopher

[Anonymous]

There's got to be some way easier... all i have to do was go to "Cross Sections > Existing Ground > Sample from file" on Land...
I don't think they would cut this command off without replacement... something as easy as the first one was... Land 1x0 Civil 3D

Diego

[Anonymous]

I got it using "Home tab > Create Ground Data panel > Points menu > Create Points - Alignments > Import From File"

It still not what i wanted, but i think it can do the job...as my section will be sampled exactly over the points, shouldn't be too much diference between this civil method and the land method.

But i still looking for something like the old "sample sections from ascii"

Diego

[Civil3DReminders_com]

I think something's wrong with your score. I've got mine at Land 12.3 x 432.7 Civil 3D 😉

[Anonymous]

I'm just joking... but you should know how bad it is when you have to change your way and start it all over again... but with time i'll learn how to work (and maybe i'll learn some english too 🙂

[peterfunkautodesk]

Diego,

In Civil 3D the cross sections are cuts of the surface at station. If you use the "Import From File" along the alignment and then build a surface from those points, the resulting cross section should match. If you wanted it even closer, then you could draw 3d Polylines between the points at station and then create a surface using them as breaklines. This would limit the DTM to adding triangle edges at each of the station lines and would produce a surface that should exactly match the point import.

We don't have a concept in Civil 3D of a section that is not a view of a surface model.

Cheers,

Peter Funk
Civil 3D Product Manager
Autodesk, Inc.