Function make_normalized_vectors

nodedb-codec/src/spherical.rs:248–263

(n: usize, dims: usize)

    use super::*;

    fn make_normalized_vectors(n: usize, dims: usize) -> Vec<f32> {
        let mut data = Vec::with_capacity(n * dims);
        for i in 0..n {
            let mut vec: Vec<f32> = (0..dims)
                .map(|d| ((i * dims + d) as f32 * 0.1).sin())
                .collect();
            let norm: f32 = vec.iter().map(|x| x * x).sum::<f32>().sqrt();
            if norm > 0.0 {
                for v in &mut vec {
                    *v /= norm;
                }
            }
            data.extend_from_slice(&vec);
        }
        data
    }

    #[test]
    fn empty_roundtrip() {