NURBS-Python (geomdl) is a pure Python, self-contained, object-oriented B-Spline and NURBS spline library.

NURBS-Python (geomdl) provides convenient data structures and highly customizable API for rational and non-rational splines along with the efficient and extensible implementations of the following algorithms:

• Spline evaluation
• Derivative evaluation
• Knot insertion
• Knot removal
• Knot vector refinement
• Degree elevation
• Degree reduction
• Curve and surface fitting via interpolation and least squares approximation

NURBS-Python (geomdl) also provides customizable visualization and animation options via Matplotlib, Plotly and VTK libraries. Please refer to the documentation for more details.

• Documentation: https://nurbs-python.readthedocs.io/
• Examples: https://github.com/orbingol/NURBS-Python_Examples
• Development: https://github.com/orbingol/NURBS-Python

• rw3dm
• rwsat

The following article outlines the design and features of NURBS-Python (geomdl):

@article{bingol2019geomdl,
  title={{NURBS-Python}: An open-source object-oriented {NURBS} modeling framework in {Python}},
  author={Bingol, Onur Rauf and Krishnamurthy, Adarsh},
  journal={{SoftwareX}},
  volume={9},
  pages={85--94},
  year={2019},
  publisher={Elsevier},
  doi={https://doi.org/10.1016/j.softx.2018.12.005}
}

NURBS-Python (geomdl) is licensed under the terms of MIT License and it contains the following modules:

• six is licensed under the terms of MIT License
• backports.functools_lru_cache is licensed under the terms of MIT License