Best

I am looking for a method to perform the functions below, but cannot find the correct way. Specifically, I would like to mirror an STL/OBJ file and then superimpose it according to two-point cloud alignment and ICP. Linked to this, I want to obtain a plane of symmetry on which I can mirror my STL file and get a color map of the mirrored planes and thus visualize the discrepancies.image 1
image 2

I tried a variety of methods in Meshlab/Cloudcompare but can’t seem to find the right one.