Table of major stations and elevations

[mcjohn]

Hi,

 

I'm using Civil 3D 2012. I created a road alignment and a profile view of it and would like to extract a table of major stations, coordinates and elevations (and grades between them, or I can do that manually in excel). Specifically I want to know grades between my major stations (every 1 km). Previously I have just labelled them on profile views and copied them to excel but it's inefficient. Thanks for any help.

-John

[Bill_Myron]

This is what I would do.

 

Create a Corridor that is flat. This will follow your Alignment with your Profile Elevations. Create a surface from the Corridor.

 

Next create points along the Alignment by using Home tab>Create Ground Data panel>Points menu>Create Points - Alignments>Measure Alignment

 

Select the Alignment and the interval. Select your points and select Elevation from your corridor surface.

 

Go to your prospecter or Panorama, higlight the points, copy and paste to Excel. Make sure you have only the columns you need.

 

In Excel you can add a station column and the grade column with some easy formulas.

 

 

You could also make the Surface with two Feature Lines offset from the Alignment. Which ever you find to be easier

 

 

A little long winded

[mcjohn]

Thanks, Bill.

 

However, I've never made a corridor before and when I went to Corridors - Create Corridor and selected my alignment, it created one (although it's invisible and is it flat?) and then when I make a surface I'm unsure how to make it from that corridor.

 

I'm surprised it's that many steps just to get some elevation data and that stations and grades would have to be done manually.

[Bill_Myron]

For the corridor, you need an assembly.

 

Create an assembly and add "Crowned Lane" Subassembly from the palette. Select the Subassembly and change the properties so the slope is 0%.

 

Now Create the Corridor. Follow the prompts: Alignment> Profile> Assembly. When the dialog comes up, change the frequency to something small. The smaller the better. Whatever your computer can handle. Hit OK, your Corridor is now created!

 

Now go to Corridor Properties > Surfaces tab. Click the "Create new surface" button. Give it a style, specify the code Top, click the "+" button to add that code to your surface, click OK, and you're done.

 

Now when you add your points, you can target this surface.

[mcjohn]

Great, that seems to work! I believe it also works without an assembly or corridor but regardless that was a good intro into using them. Thank you.

-John