Geometrical operations in stl file

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I have DICOM images, I calculate Connectivity of my structure and I convert it into STL, next I decimate the structure, I want again to calculate the new connectivity of my new decimated structure. How I can do this with ImageJ?



You need to convert your STL back to a binary image, then calculate the connectivity of that. We were chatting about STL->binary pixel conversion recently, not sure of its status for users right now though.