Refactor some more

crates/lox-space/examples/iss.rs

@@ -14,17 +14,21 @@ fn main() {
     let epoch = Epoch::from_date_and_time(TimeScale::TDB, date, time);
     let position = DVec3::new(6068279.27, -1692843.94, -2516619.18) * 1e-3;
     let velocity = DVec3::new(-660.415582, 5495.938726, -5303.093233) * 1e-3;
-    let iss = Cartesian::new(epoch, Earth, Icrf, position, velocity);
+    let iss_cartesian = Cartesian::new(epoch, Earth, Icrf, position, velocity);
+    let iss = Keplerian::from(iss_cartesian);
 
     println!("ISS Orbit for Julian Day {}", iss.time().days_since_j2000(),);
     println!("=============================");
-    println!("Semi-major axis: {:.3} km", iss.semi_major());
+    println!("Semi-major axis: {:.3} km", iss.semi_major_axis());
     println!("Eccentricity: {:.6}", iss.eccentricity());
     println!("Inclination: {:.3}°", iss.inclination().to_degrees());
     println!(
         "Longitude of ascending node: {:.3}°",
         iss.ascending_node().to_degrees()
     );
-    println!("Argument of perigee: {}°", iss.periapsis_arg().to_degrees());
+    println!(
+        "Argument of perigee: {}°",
+        iss.periapsis_argument().to_degrees()
+    );
     println!("True anomaly: {:.3}°", iss.true_anomaly().to_degrees());
 }

crates/lox-space/src/prelude.rs

@@ -7,7 +7,7 @@
  */
 
 pub use lox_core::bodies::*;
-pub use lox_core::coords::{Cartesian, DVec3, Keplerian, TwoBody};
+pub use lox_core::coords::{Cartesian, DVec3, Keplerian};
 pub use lox_core::frames::*;
 pub use lox_core::time::dates::*;
 pub use lox_core::time::epochs::*;