AutoCAD Civil 3D 2018 – What’s a Relative Feature Line?

As you’ve hopefully heard, AutoCAD Civil 3D 2018 is now shipping and we’re really excited to see how you begin putting all of the new tools into practical use. There are a number of blog posts, videos and forum discussions that will help you quickly become acquainted with all the new functionality so I’ll avoid duplicating what others have already done. Rather, I thought I’d share a little background on how some of these improvements became reality. There’s quite a bit in this release so I’ll break this into a series of blog posts.

The first improvement area that I’ll cover is with the new “relative feature line” capability. Here’s the back story…

Just about every Autodesk University class or production example demonstrating grading using in AutoCAD Civil 3D starts with generating a reference surface (e.g., drainage, rough site grading, etc.) and then projecting feature lines so that they’re draped at the correct location in 3D. This works great as a starting…

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