I saw a post on a forum the other day of an architect who sent a marked-up drawing as part of a CAD to BIM project. It was a relatively small structure that was being modeled. Maybe 1500 square feet. This got me thinking, why did they not just bother to go out and scan the structure? Laser scanning 10 years ago may have seemed exotic. Today it’s commonplace enough that I have a small lidar scanner in my phone. I use it to measure things in my house or create simple 3d models.
Maybe the architect in question was simply unfamiliar with reality capture technology, so I decided to write this post explaining the concept for those new to this way of working. Before you jump in, it’s essential to understand two key concepts: Point Clouds and Survey Points are central to working with BIM (no wonder why reality capture services are so important to us). If you are just getting familiar with reality capture technology this is an essential concept to understand.