Could we laser scan the world, make a big point cloud, and then import it into Revit? Well, one day we might be able to accomplish that on a small scale (then again, maybe not). In the meantime, try this process:
- Make the point cloud from existing geometry using this guide
- Use GreenSpider (more info at this link) to bring the points into Revit (and ‘maybe’ make a form using splines)
I’m sure results will vary… please comment if you try it out.
Point clouds are getting a lot of “press” lately, and they can be very useful. But let’s say, hypothetically, that you have a 3D model of a building or a component and you want to deconstruct it back into a point cloud – Can this be done? Yes, and quite easily…
- Open the 3D model in 3dsMax
- Export to STL
- Import the STL into MeshLab (File – Import Mesh)
- Export the mesh as an XYZ file (File – Export Mesh As…)
- This XYZ file can now be imported into Recap, or indexed by Revit into a PCG, or used in various other software tools
Note: You can also create STL files (steps 1 and 2) directly from Revit using the STL Exporter add-in.
Some of these tools were discussed at:
Free 3D PDF from Revit STL using Meshlab, MiKTeX and U3D-2-PDF