routee-compass-core 0.3.0

The core routing algorithms and data structures of the RouteE-Compass energy-aware routing engine
Documentation 
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use derive_more::{Add, Div, Mul, Neg, Sub, Sum};
use ordered_float::OrderedFloat;
use serde::{Deserialize, Serialize};
use std::{cmp::Ordering, fmt::Display, str::FromStr};

use super::as_f64::AsF64;

#[derive(
    Copy,
    Clone,
    Serialize,
    Deserialize,
    PartialEq,
    PartialOrd,
    Eq,
    Hash,
    Debug,
    Default,
    Add,
    Sub,
    Mul,
    Div,
    Sum,
    Neg,
)]
pub struct Grade(pub OrderedFloat<f64>);

impl AsF64 for Grade {
    fn as_f64(&self) -> f64 {
        (self.0).0
    }
}

impl Ord for Grade {
    fn cmp(&self, other: &Self) -> Ordering {
        self.0.cmp(&other.0)
    }
}

impl Display for Grade {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}", self.0)
    }
}

impl FromStr for Grade {
    type Err = String;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        let f = str::parse::<f64>(s)
            .map_err(|e| format!("failure reading grade value {}: {}", s, e))?;
        Ok(Grade::new(f))
    }
}

impl Grade {
    pub fn new(value: f64) -> Grade {
        Grade(OrderedFloat(value))
    }
    pub fn to_ordered_float(&self) -> OrderedFloat<f64> {
        self.0
    }
    pub const ZERO: Grade = Grade(OrderedFloat(0.0));
}