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Calculate builiding elevation from lidar

  • September 30, 2014
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Hi,

 

 

 

I'm looking to calculate a building elevation and output the attribute to an sdf.  What I have is xyz files for bare earth, xyz of full feature (includes all elevated points) and an sdf of building footprints.  

 

 

I need to somehow get the difference between the full feature point elevation and the bare earth elevation, then clip out all points that are outside of the building footprints, and lastly create the building footprint sdf.

 

 

I've never done this in FME before, so it will be a new process.

 

 

thanks.

 

 

 

Best answer by davideagle

I don't see a question mark anywhere in your post, so can't answer a specific question. But, you'll need to read in the footprints and the XYZ, then use the Clipper to clip all the points out that fall inside each building. The StatisticsCalculator might then help you get say an average of all the points inside each building to get an everage height.
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davideagle
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  • davideagleContributor
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  • October 6, 2014
I don't see a question mark anywhere in your post, so can't answer a specific question. But, you'll need to read in the footprints and the XYZ, then use the Clipper to clip all the points out that fall inside each building. The StatisticsCalculator might then help you get say an average of all the points inside each building to get an everage height.

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