Generate buldings from Lidar points

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(Primož) #1

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?


#2

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


(Primož) #3

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).


#4

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


And also a lot option for mesh reconstruction


(Graham) #5

Sounds like a job for AI :slightly_smiling_face:

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


(Amir Touhidi) #6

do you have a sample file to play around with?


(Primož) #7

sure
terrain.3dm (19.6 MB)