nalgebra/examples/scalar_genericity.rs
2020-03-21 23:44:24 +01:00

26 lines
589 B
Rust

extern crate nalgebra as na;
use na::{Scalar, Vector3};
use simba::scalar::RealField;
fn print_vector<N: Scalar>(m: &Vector3<N>) {
println!("{:?}", m)
}
fn print_norm<N: RealField>(v: &Vector3<N>) {
// NOTE: alternatively, nalgebra already defines `v.norm()`.
let norm = v.dot(v).sqrt();
// The RealField bound implies that N is Display so we can
// use "{}" instead of "{:?}" for the format string.
println!("{}", norm)
}
fn main() {
let v1 = Vector3::new(1, 2, 3);
let v2 = Vector3::new(1.0, 2.0, 3.0);
print_vector(&v1);
print_norm(&v2);
}