45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
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use na::{Real, DefaultAllocator};
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use traits::{Alloc, Dimension};
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use aliases::Vec;
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pub fn distance2<N: Real, D: Dimension>(p0: &Vec<N, D>, p1: &Vec<N, D>) -> N
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where DefaultAllocator: Alloc<N, D> {
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(p1 - p0).norm_squared()
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}
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pub fn l1_distance<N: Real, D: Dimension>(x: &Vec<N, D>, y: &Vec<N, D>) -> N
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where DefaultAllocator: Alloc<N, D> {
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l1_norm(&(x - y))
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}
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pub fn l1_norm<N: Real, D: Dimension>(v: &Vec<N, D>) -> N
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where DefaultAllocator: Alloc<N, D> {
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::comp_add(&v.abs())
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}
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pub fn l2_distance<N: Real, D: Dimension>(x: &Vec<N, D>, y: &Vec<N, D>) -> N
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where DefaultAllocator: Alloc<N, D> {
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l2_norm(&(y - x))
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}
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pub fn l2_norm<N: Real, D: Dimension>(x: &Vec<N, D>) -> N
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where DefaultAllocator: Alloc<N, D> {
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x.norm()
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}
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pub fn length2<N: Real, D: Dimension>(x: &Vec<N, D>) -> N
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where DefaultAllocator: Alloc<N, D> {
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x.norm_squared()
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}
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//pub fn lxNorm<N: Real, D: Dimension>(x: &Vec<N, D>, y: &Vec<N, D>, unsigned int Depth) -> N
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// where DefaultAllocator: Alloc<N, D> {
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// unimplemented!()
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//}
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//
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//pub fn lxNorm<N: Real, D: Dimension>(x: &Vec<N, D>, unsigned int Depth) -> N
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// where DefaultAllocator: Alloc<N, D> {
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// unimplemented!()
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//}
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