Results 3 issues of Qiuml

I see that the feature of the superpoint is calculated by the eigen value e of the covariance matrix in graph.py. However, only length e[0], surface e[0]*e[1] and volume e[0]*e[1]*e[2]...

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## Issue Details I modified the sample code `region_growing_planes_on_point_set_3.cpp` and used an array to assign the instance `input_range` instead of reading the point cloud directly from the file. When I...

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