open-cascade-sas/occt

Open CASCADE Technology (OCCT) is a C++ platform for CAD/CAM/CAE applications, providing 3D modeling, CAD data exchange, visualization, and application-framework services. A typical product workflow begins with an application developer using OCCT libraries to create or process geometry, apply modeling algorithms, exchange CAD data, and visualize results; the framework also provides document and persistence capabilities. The groups reflect the product’s documented domains and the module families in the tree. The source excerpts are limited, so the diagram summarizes documented capabilities and avoids asserting detailed internal call wiring.