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Question

Extract dimensions of internal walls from a scan

  • October 28, 2019
  • 1 reply
  • 12 views

FME Beginner. Project has scanned the internal areas of a high rise building. Have raw scan files currently sitting in Trimble RealWorks. I was wondering if there is way to extract the dimensions of the walls from the point cloud? Happy to do this floor by floor if needed. Thank you.

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1 reply

sigtill
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  • 956 replies
  • October 29, 2019

Hi @g_moore12 . Difficult without any example data but I would do the following:

1. Find the height (z) of every "half floor"

2. Get all the pointclouds that are +/- 0,1m from that "floor"

3. Create a TIN-modell per half floor

4. Remove the largest TIN-surfaces and then you only have the walls left.

5. Use the Centerlinereplacer to try to find the center of the wall also use the Dissolver to create wall area.

6. Calculate the distance from some points on the centerline and the dissolved wall.

 

Difficult to help more without actual data