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use num_traits::{Float, FromPrimitive};
use crate::algorithm::haversine_distance::HaversineDistance;
use crate::{Line, LineString, MultiLineString};
pub trait HaversineLength<T, RHS = Self> {
fn haversine_length(&self) -> T;
}
impl<T> HaversineLength<T> for Line<T>
where
T: Float + FromPrimitive,
{
fn haversine_length(&self) -> T {
let (start, end) = self.points();
start.haversine_distance(&end)
}
}
impl<T> HaversineLength<T> for LineString<T>
where
T: Float + FromPrimitive,
{
fn haversine_length(&self) -> T {
self.lines().fold(T::zero(), |total_length, line| {
total_length + line.haversine_length()
})
}
}
impl<T> HaversineLength<T> for MultiLineString<T>
where
T: Float + FromPrimitive,
{
fn haversine_length(&self) -> T {
self.0
.iter()
.fold(T::zero(), |total, line| total + line.haversine_length())
}
}