Manifold Geometry // Многообразная Геометрия

Inverted faces in Analysis Situs

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It sometimes happens that your B-Rep or mesh model contains inverted faces, i.e., the faces whose normal vectors are pointing in the wrong direction with respect to the bounded material. We have devoted a couple of blog posts to that issue already (see here and here), but so far it was not straightforward to see if your geometry suffers from such sort of defects or not. In the next version of Analysis Situs, the inverted faces & facets will get your attention right out of the box: we now render all such problematic entities in red color.

Analysis Situs keeps going to give you an open CAD platform for prototyping engineering software without any bit of commercial code inside. Stay tuned.

Analysis Situs is a non-commercial FOSS-project driven by scientific research of its authors in Lobachevsky University of Nizhny Novgorod. Analysis Situs is a CAD inspection utility that also serves as a prototyping framework for geometric modeling algorithms. You can download the latest version here.