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Using Clud Layers with Cross Sections

Posted: Tue May 17, 2022 2:57 pm
by Rubs
Hello.

First of all, thank you for provide us with such a powerful tool to manage point clouds.

I want to refine the classification of a pointcloud using Cloud Layers, but I need to operate over a Cross Section. The problem is that I'm not able to call Cloud Layers plugin while I'm visualizing a cross ssection.

The only I can do is export the the cross section as a new cloud and reclassify there the points. But then the classification is not updated in the main point cloud.
1 - Main point cloud.png
1 - Main point cloud.png (898.65 KiB) Viewed 10078 times
2 - Reclassifyed section.png
2 - Reclassifyed section.png (94.91 KiB) Viewed 10078 times
I have tried to update the classification of the points using the "Interpolate from another entity" tool from the Scalar Field menu (using the nearest neighbor setting). But the result (after a very long processing time) is that all the points change their classification, and not only those present in the cross section.
3 - Interpolate SF from other entity.png
3 - Interpolate SF from other entity.png (619.58 KiB) Viewed 10078 times
4 - Result.png
4 - Result.png (754.68 KiB) Viewed 10078 times
Any idea how to do it?

Actually not being able to work based on sections when reclassifying is an important limitation.

Thanks!!

Re: Using Clud Layers with Cross Sections

Posted: Sun May 22, 2022 9:55 pm
by daniel
If you can, you should use the 'scissors' tool instead, and 'split' the original cloud in 2 parts. Then update the classification on one part, and merge the 2 parts back together. This should keep the original classification on the other points.