sphedron 0.1.1

Polyhedral meshes on the unit sphere

Sphedron: Polyhedral meshes on the sphere

A python package for creating refinable polyhedral meshes on the sphere. The refinement is either rectangle or triangle based.

The was developed as a component of Graph Neural Networks (GNN) for Geospatial ML projects, and it's designed with that in mind.

The package implements:

• Icosphere
• Octasphere
• Cubesphere
• Uniform Latitude/Longitude

It is also straighforward to extend it to include other triangular/rectangular meshes.

You can find code examples here:

If you're looking to implement your own rectangle/triangle based mesh:

For the full documentation:

Requirements

• python >= 3.10
• numpy
• scipy (nearest neighbor query)
• trimesh (radius query)

Optional dependencies:

• cartopy (plots)
• shapely (land mask feature)

Install

To understand the inner workings of a mesh and how its refined, refer to Icosphere Mesh Documentation