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Question

Extrude using point cloud boundaries


bayram
Contributor
Forum|alt.badge.img+5

Hi, I want to extrude my cad data using point cloud. (airborne LiDAR)

When you look adding pictures there is 2 shapes. I drawed that in Microstation programme. I want to do:

1) The light blue one will extrude from the ground. I mean ground class (orange that) of airborne lidar.

2) The dark blue one will extrude to up .Minumum elevation of the building (red dots) class in airborne lidar.

The note that my light and dark blue shapes are the same elevation. My last product should be pic "3Dd1".

2 replies

caracadrian
Contributor
Forum|alt.badge.img+23
  • Contributor
  • February 3, 2022

Drape the features on the point cloud (filtered by classification) to get elevation, do the math (maybe some statistics to get min or max elevation as needed), use Extruder.


bayram
Contributor
Forum|alt.badge.img+5
  • Author
  • Contributor
  • February 4, 2022

Yes I know that, thanks. Although I have class of the lidar, I cant see in FME this class as the attribute . How can I see? Then I will use the math statistics.


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