Geometry

A lightweight 2D/3D/nD geometry library written in C# for games and other applications that don't need high-precision math. It favors speed and simplicity over precision — values are stored as float, so this is not a good fit for serious scientific or CAD-grade math. It is, however, fast, easy to use, and easy to extend with new shapes.

Note that some objects are assumed to be grid-aligned (e.g. Rectangle, Cube, AABB). Making these fully general (arbitrary rotation, etc.) is potential future work.

Test coverage is an ongoing effort. If you find a bug, please open an issue and it will be looked at as soon as possible.

Solution layout

Project	Description
GeometryLib	The library itself. Namespace: Geometry.
GeometryTests	NUnit test suite for the library, mirroring the Objects folder structure.

Requirements

• .NET 10 SDK
• Windows (target platform)

Building and testing

dotnet build
dotnet test

Objects

2D (GeometryLib/Objects/2d)

• Point2
• Vector2
• Line2
• Circle
• Ellipse
• Triangle2
• Rectangle
• Polygon

3D (GeometryLib/Objects/3d)

• Point3
• Vector3
• Ray
• Plane3
• Triangle3
• Sphere
• Cube
• AABB
• Capsule

Higher dimension (GeometryLib/Objects/Nd)

• VectorN

Interfaces (GeometryLib/Interfaces)

• I1d
• I2d
• I3d

License

MIT — see LICENSE.txt.