Processing an stl scan
I have an stl scanned file of a blood vessel. I need to define the inlet outlet and the wall of the the scanned vessel but the solid has hundreds of thousands of facets.
I tried to merge the facets but I could only merge small patches of them most of the patches give an error when I try to merge them. I also tried skin surface which resulted in a small but unacceptable deviation and I need the exact geometry is there any other way I can use to obtain a solid?