Civil 3D - Create Alignment from 3D Polyline

By John van Rijn

How often do you have to make an alignment, but all you have is a 3D polyline? How useful would it be to transform this line into an alignment including a surface profile?

Step 1:

Select the 3D line, right-click, create a quick-profile.

Step 2:

Using the command "LANDXMLOUT" or menu, Output, Export to LandXML.

Now export a .xml file, by selecting the profile in your quick-profile.

Step 3:

Now import the .xml file and you get an alignment and a profile that shows the height of the polyline.