ganymedes 0.0.3

Ganymede celestial simulation crate for the MilkyWay SolarSystem workspace
Documentation 
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#[derive(Debug, Clone, Copy, PartialEq)]
pub struct ElevationSample {
    pub latitude_deg: f64,
    pub longitude_deg: f64,
    pub elevation_m: f64,
}

pub fn sample_dem(latitude_deg: f64, longitude_deg: f64) -> ElevationSample {
    let galileo_bias =
        if (-10.0..=20.0).contains(&latitude_deg) && (120.0..=180.0).contains(&longitude_deg) {
            -1_500.0
        } else {
            0.0
        };
    let sulci_bias =
        if (30.0..=60.0).contains(&latitude_deg) && (-60.0..=0.0).contains(&longitude_deg) {
            500.0
        } else {
            0.0
        };
    let wave = latitude_deg.to_radians().sin() * 350.0 + longitude_deg.to_radians().cos() * 250.0;
    ElevationSample {
        latitude_deg,
        longitude_deg,
        elevation_m: galileo_bias + sulci_bias + wave,
    }
}