Matrix has a command called _gvMeshRepair that can take a series of closed AND open surfaces and polysurfaces, and converts them to meshes while closing any openings (not always elegantly, if the opening is too large) and boolean unioning them together.
It clearly uses some existing Rhino commands plus some secret GemVision voodoo. I’ve been combing Food4Rhino for a plugin that does the same thing in raw Rhino, but can’t definitively identify anything. Does anyone either know of a plugin that will sub for the Matrix command -OR- know exactly what _gvMeshRepair is doing behind the scenes, in sequence?
I see, their pricing is eye-watering indeed, their product needs to save a whole lot of time on a lot of projects to earn itself I guess.
Looking at this Matrix Mesh repair - YouTube it does a set of complicated operations which take a long time (3 min on that complicated example), but what exactly and in what order I can’t tell.
I don’t think it can be replicated exactly, for example the faceted meshing of small spheres is not in rhino afaik. It looks like a combination of meshing, Boolean operations on meshes and edge matching (MatchMeshEdges command).