Skip to main content

facade_validated_geometry/
facade_validated_geometry.rs

1use use_math::{Orientation2, Point2, Triangle, distance_2d, try_orientation_2d};
2
3fn approx_eq(left: f64, right: f64) -> bool {
4    (left - right).abs() < 1.0e-10
5}
6
7fn main() -> Result<(), use_math::GeometryError> {
8    let a = Point2::try_new(0.0, 0.0)?;
9    let b = Point2::try_new(4.0, 0.0)?;
10    let c = Point2::try_new(0.0, 3.0)?;
11
12    let triangle = Triangle::try_new(a, b, c)?;
13
14    assert!(approx_eq(distance_2d(a, b), 4.0));
15    assert!(approx_eq(triangle.perimeter(), 12.0));
16    assert_eq!(try_orientation_2d(a, b, c)?, Orientation2::CounterClockwise);
17
18    Ok(())
19}