tpaviot/pythonocc-core

Health v2 · maintenance only

Adoption not part of the score

1955 stars · 408 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

pythonocc-core is a Python package providing 3D modeling and data exchange features based on the OpenCascade Technology (OCCT) CAD kernel. It exposes nearly all OpenCascade C++ classes to Python, with 3D visualization in desktop GUIs, web browsers, and Jupyter notebooks.

Use cases

• create and manipulate 3D CAD models in Python
• convert STEP/IGES/STL files to OBJ or GLTF
• build BIM or PLM applications with a 3D modeling kernel
• visualize 3D geometry in a Jupyter notebook
• compute inertia and topology properties of 3D shapes
• render 3D models in a web browser with threejs or x3dom

When to choose

• you need programmatic 3D CAD modeling in Python
• you must exchange geometry between STEP, IGES, STL, PLY, OBJ, or GLTF formats
• you want OpenCascade's kernel without writing C++
• you need 3D visualization in desktop GUIs, browsers, or notebooks

When to avoid

• you only need lightweight mesh viewing without solid modeling
• you need a GUI CAD application rather than a Python library
• your project cannot use LGPL-licensed dependencies

Facets

library · maturity active

graphics simulation image-processing sdk computer-vision graphics developer-tools cross-platform python cross-platform windows cad bim cam opencascade 3d-modeling step iges stl threejs jupyter geometry linux macos

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