I added some more features so you can examine in more detail what is actually being detected. Zooming in the line reveals that the detection found a “gap” to the upper Brep: Fully matching polysurfaces are also available. Given the intelligence and experience on these forums, can anyone think of a better solution for detecting these gaps easily in models that are composed of >5000 polysurfaces? A simple demo is attached, where there is a gap in the middle of a model - secondary versions are also available on different layers where there are only 3 polysurfaces. Granted I could align the vertices and then detect the non-planar locations, but this is a work-around. Merging vertices outright with a tolerance via meshing all of the breps independently would also cause issues, as I cannot guarantee all of the surfaces are planar after this operation. Without looping through each vertex in the model and comparing it to all of the other vertices, I can’t see an easy way of detecting these sorts of gaps easily.

polysurfaces will cause issues down the line.

For lack of a better explanation, typically a model that I work with is comprised of irregular geometry that must be represented using convex closed solids that are composed of planar surfaces to form a fully contiguous model. I now need a foolproof method to be able to detect gaps between polysurfaces, so that the polysurfaces in the model form a contiguous medium. I’ve written a script as Rhinoscript and Pythonscript for Rhino to be able to detect duplicate polysurfaces, open polysurfaces and non-planar surfaces.

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