Hands-on: Use Draping Surfaces to Warp a Parking Lot for Drainage

Engineering Task: Grade a Parking Lot with a Cross Slope and then a warp to ensure positive drainage.

Dataset:: Draping Surface dataset (zip file)

Most Appropriate Pre-requisite:  Non-Corridor and Site Modeling course.

Video: Creating the Draping Profiles.mp4

Imagine a fairly straightforward grading requirement, but a complex curbed parking lot with lots of islands and detail work.

Computing appropriate slopes along each element would be ridiculously difficult.  An easy and intuitive technique is to create a "draping surface".  The draping surface provides a simple intutive - and easily changed - terrain that design elements get their elevations from.