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.library designed for rapid production of sophisticated domain-specific CAD/CAM/CAE applications
minor feature: https://dev.opencascade.org/content/open-cascade-technology-771-maintenance-release
GNU LGPLv3 c++ cad cam visualization
