Labels on grid lisp routine

[Yonas89]

Hello,

I am thinking about LISP routine which would give me a grid (with predefined lenght and width) draw along Alignment (or polyline). I need also that grid would not exceed a defined outer boundary (that could be closed polyline) and woud be trimmed to it. Finallly, at all grid verices I need to put a specific surface elevation label. Please look at the attached image below, for better understanding. 

I have to little experience with autolisp to start write it from scratch, but maybe you can provide me with some directions how to create it or give a link to similiar LISP routines which I believe I can modify? 

[tcorey]

While I wholeheartedly encourage you to learn LISP, this particular task could be accomplished with a corridor

[odoshi]

I would also avoid LISP for this scenario. You can get a lot done with the corridor as stated. Trying to mix Civil 3D commands/labels with LISP is only going to complicate it more.

The only thing the corridor won't do for you if give you those smooth offset grid lines around the corners.

But the basic how-to would be this:

Create centerline alignment

Create profile along centerline

Create Assembly with Lanes or Marked Points at the offset intervals. Cross Grades do not matter. We just want X-Y locations of the label points.

May want to look into Conditioonal Assemblies and other targeting to turn on/off more subassemblies to match your boundary.

Build corridor.

Extract Feature Lines for edges of Lanes/Marked Points - keep link back to corridor

Label Feature Lines with Generic Labels with Reference Text pointing to surface

That's just off the top of my head. Might be better ways...

Regards,

[Yonas89]

thanks guys, I will try this workflow next week, cause I have no access to  software now.

It looks that I can get the final result, however I am still thinking that LISP routine for this particular task is the best way, because you can avoid many steps you have to make such as creation of alignment, profile, corridor, assembly etc. Though it might be very simple objects it still requires some time to reach the final result.

In my opinion LISP routine should consist of 5 main steps.

1Define grid

2Use arraypath command  to create grid along polyline which represents my alignment.

3.Define outer boundary

4.Explode grid and trim polylines to outer boundary

5 Put surface elevation label at each point where to lines intersect.    

[Jeff_M]

Why not just use the outer boundary as a boundary in your surface, then use the Spot Elevations on Grid labeling option?

[Yonas89]

I believe spot elevations on grid cannot be aligned along alignment. I can rotate a grid but cannot align it. Please correct me if I am wrong. 

[Jeff_M]

Correct. I read 'grid' literally and didn't see the image you posted until now.

[odoshi]

Got a little head start on a .NET routine to do it. Works, but still need to add the boundary option.

[odoshi · Accepted solution]

I made the dialog modeless and merged in the EXTRIM command. So now it handles boundaries, if anyone would like to give it a test.

[neilyj666]

I'll try it