CGAL for Grasshopper — Computational Geometry

Bring the power of CGAL's computational geometry algorithms into Rhino Grasshopper with a clean C++ DLL and .NET P/invovke bridge.
This project exposes optimized geometry operations like Oriented Bounding Boxes, Convex Partitioning, and Straight Skeletons to designers, computational architects, and developers working in Grasshopper.

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Features

• Optimal Oriented Bounding Box (CGAL::oriented_bounding_box)
• Polygon Partitioning
  • Approximate Convex Partition
  • Optimal Convex Partition
  • Y-Monotone Partition
• 2D Straight Skeleton
• Designed for real-time use inside Rhino Grasshopper via P/Invoke
• Easily extendable with more CGAL modules

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Prerequisites

• Visual Studio 2019/2022
• vcpkg (installed and integrated)
• Rhino 7 or 8
• Basic familiarity with C++ and C# (for P/Invoke usage in Grasshopper)

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Clone & Setup

git clone https://github.com/yourusername/cgal-grasshopper-integration.git
cd cgal-grasshopper-integration