Generate buldings from Lidar points

brglez.primoz · December 9, 2018, 1:46am

Hi all.

I’m frequently in a situation when I have to generate lots of simplified buildings on terrain models. I extracted the roof points from a LAZ file using CloudCompare and now I want to generate some simple solids using these points. Does someone have an idea how to best tackle this?

Antonio_Cersosimo · December 9, 2018, 1:54am

How simple?, Mesh or Breps?, with roof angles? or just boxes?..

brglez.primoz · December 9, 2018, 2:04am

Preferably breps (meshes are also fine) but with angles. Something like this.

I projected the points to the ground and made a line from the roof to the ground. Is there a way to interpolate a solid using many curves or something? Like some kind of bounding box? The bottom face could be made flat and intersect with the ground (reconstructing points with lowest Z).

Antonio_Cersosimo · December 9, 2018, 4:56pm

There is component in the old forum in milkbox call Ball Pivot.

And also a lot option for mesh reconstruction

Dancergraham · December 9, 2018, 6:47pm

Sounds like a job for AI

https://www.esri.com/arcgis-blog/products/product/3d-gis/restoring-3d-buildings-from-aerial-lidar-with-help-of-ai/

Amir_Touhidi · December 10, 2018, 10:41am

do you have a sample file to play around with?

brglez.primoz · December 10, 2018, 9:59pm

sure
terrain.3dm (19.6 MB)