platform for 3D CAD, CAM, and CAE
Open CASCADE Technology (OCCT) is an object-oriented C++ class library designed for rapid production of sophisticated domain-specific CAD/CAM/CAE applications. A typical application developed using OCCT deals with two or three-dimensional (2D or 3D) geometric modeling in general-purpose or specialized Computer Aided Design (CAD) systems, manufacturing or analysis applications, simulation applications, or even illustration tools.
Homepage: https://www.opencascade.com/
Maintainer: Johannes Thyssen Tishman <jtt@openbsd.org>