# `hexasphere`
Library for subdividing shapes, such as an icosahedron. This provides
abstractions for almost anything to be possible, however there are many
predetermined shapes.
## In the case of the icosphere:
### Geometry:
This starts off with an icoashedron, and then proceeds to subdivide it.
The subdivided points form the dual to a [goldberg polyhedron](https://en.wikipedia.org/wiki/Goldberg_polyhedron).
In essence, each point on this sphere is either a hexagon or a pentagon.
### Interpolation:
Points are interpolated using the [geometric `slerp`](https://en.wikipedia.org/wiki/Slerp#Geometric_Slerp)
function to preserve their accuracy.
---
### Features
- Base shapes
- Icosahedron
- Tetrahedron
- Triangle
- Square
- Cube
- Interpolation functions
- Spherical interpolation
- Linear interpolation
- Normalized linear interpolation
- Basic optimizations for `p == 0.5` in interpolation.
- An adjacency (neighbour) map which can be generated from the indices
that this library creates.
A few more optimizations are coming, along with more options for generation:
- Remove nested triangle layers by placing them into their own `Vec`.
- Allow interpolation functions to have access to state. (This would
permit certain things such as sampling noise as part of the generation).
# License
Hexasphere is distributed under the terms of either the MIT license, or the Apache License (Version 2.0)
at the user's choice.
See the files named LICENSE-MIT and LICENSE-APACHE2 relative to the root directory of this
project for more details.