I want to compare different methods of generating TIN-models. To assess the quality of each model, I want to calculate the vertical distance between each point in the input point cloud and the generated TIN in order to later calculate for example the RMSE. Any tips on an approach?
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Calculating vertical error of TIN from point cloud
+5- Contributor
Best answer by jasperwis
Hi
This would be my first approach
Jasper
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+17- Enthusiast
Alternatively, you could use a PointCloudCombiner to collect all draped points from the SurfaceDraper in a new point cloud and export it as a LAS file.
Next, import in CloudCompare the original and the draped point cloud and calculate a Cloud/Cloud distance plot. Then you will have a nice visualisation.
+5- Contributor
+17- Enthusiast
I had no TIN file available, so I used a TINGenerator to create a sample TIN.
For your use case, just ignore the TINGenerator, import your TIN surface directly in FME and send it to Points/Line port of the SurfaceDraper.
