Mathie is a rust math type library which contains the 3 basic types
for doing anything 2D.
- Value A single number value.
- Vec2 A two-dimensional position.
- Rect A two-dimensional area that has an origin and a size.
Doing math with the builtin types is designed to be simple and powerful.
All of them support Addition, Subtraction, Multiplication, Division and Remainder.
rust
fn add() {
assert_eq!(Vec2D::new(0.5, 0.5) + Vec2D::new(1.0, 1.0), Vec2D::new(1.5, 1.5));
assert_eq!(Vec2D::new(0.5, 0.5) + 1.0, Vec2D::new(1.5, 1.5));
}
This library runs on the optional concept of units which may be sized and are designed to be easily converted between without thinking about it.
rust
fn cm_to_m() {
let v0 = Vec2D::<f32, Centimeter>::new_def(250.0, 250.0);
// () is base unit. In all cases its Meter
let v1 = v0.convert::<()>();
assert_eq!(v1, Vec2D::new_def(2.5, 2.5));
}
There are builtin units that are optional.
- metric_units 20 Metric prefixes
- imperial_units 10 Imperial prefixes
- nautical_units Nautical mile
This library has optional features for compatibility between other
math type libraries like euclid.
rust
fn euclid_compat() {
let _: Vec2D<f32, ()> = euclid::Vector2D::new(1.0, 1.0).into();
}