Error Control struct is now an enum instead of a trait

examples/03_geo_analysis/raise.rs

@@ -19,7 +19,7 @@ use nyx::{
     },
     io::{gravity::HarmonicsMem, ExportCfg},
     md::{prelude::Objective, StateParameter},
-    propagators::{PropOpts, Propagator, RSSCartesianStep},
+    propagators::{ErrorControl, IntegratorOptions, Propagator},
     Spacecraft,
 };
 use std::{error::Error, sync::Arc};
@@ -117,9 +117,9 @@ fn main() -> Result<(), Box<dyn Error>> {
     // We specify a minimum step in the propagator because the Ruggiero control would otherwise drive this step very low.
     let (final_state, traj) = Propagator::rk89(
         sc_dynamics.clone(),
-        PropOpts::builder()
+        IntegratorOptions::builder()
             .min_step(10.0_f64.seconds())
-            .error_ctrl(RSSCartesianStep {})
+            .error_ctrl(ErrorControl::RSSCartesianStep)
             .build(),
     )
     .with(sc, almanac.clone())

examples/03_geo_analysis/stationkeeping.rs

@@ -20,7 +20,7 @@ use nyx::{
     io::{gravity::HarmonicsMem, ExportCfg},
     mc::{MonteCarlo, MultivariateNormal, StateDispersion},
     md::{prelude::Objective, StateParameter},
-    propagators::{PropOpts, Propagator, RSSCartesianStep},
+    propagators::{ErrorControl, IntegratorOptions, Propagator},
     Spacecraft, State,
 };
 use std::{error::Error, sync::Arc};
@@ -103,9 +103,9 @@ fn main() -> Result<(), Box<dyn Error>> {
     // Build the propagator setup.
     let setup = Propagator::rk89(
         sc_dynamics.clone(),
-        PropOpts::builder()
+        IntegratorOptions::builder()
             .min_step(10.0_f64.seconds())
-            .error_ctrl(RSSCartesianStep {})
+            .error_ctrl(ErrorControl::RSSCartesianStep)
             .build(),
     );
 

src/mc/montecarlo.rs

@@ -24,7 +24,7 @@ use crate::mc::results::{PropResult, Results, Run};
 use crate::mc::DispersedState;
 use crate::md::trajectory::Interpolatable;
 use crate::md::EventEvaluator;
-use crate::propagators::{ErrorCtrl, Propagator};
+use crate::propagators::Propagator;
 #[cfg(not(target_arch = "wasm32"))]
 use crate::time::Unit;
 use crate::time::{Duration, Epoch};
@@ -89,9 +89,9 @@ where
 
     /// Generate states and propagate each independently until a specific event is found `trigger` times.
     #[allow(clippy::needless_lifetimes)]
-    pub fn run_until_nth_event<D, E, F>(
+    pub fn run_until_nth_event<D, F>(
         self,
-        prop: Propagator<D, E>,
+        prop: Propagator<D>,
         almanac: Arc<Almanac>,
         max_duration: Duration,
         event: &F,
@@ -100,7 +100,7 @@ where
     ) -> Results<S, PropResult<S>>
     where
         D: Dynamics<StateType = S>,
-        E: ErrorCtrl,
+
         F: EventEvaluator<S>,
         DefaultAllocator: Allocator<<D::StateType as State>::Size>
             + Allocator<<D::StateType as State>::Size, <D::StateType as State>::Size>
@@ -113,9 +113,9 @@ where
     /// Generate states and propagate each independently until a specific event is found `trigger` times.
     #[must_use = "Monte Carlo result must be used"]
     #[allow(clippy::needless_lifetimes)]
-    pub fn resume_run_until_nth_event<D, E, F>(
+    pub fn resume_run_until_nth_event<D, F>(
         &self,
-        prop: Propagator<D, E>,
+        prop: Propagator<D>,
         almanac: Arc<Almanac>,
         skip: usize,
         max_duration: Duration,
@@ -125,7 +125,7 @@ where
     ) -> Results<S, PropResult<S>>
     where
         D: Dynamics<StateType = S>,
-        E: ErrorCtrl,
+
         F: EventEvaluator<S>,
         DefaultAllocator: Allocator<<D::StateType as State>::Size>
             + Allocator<<D::StateType as State>::Size, <D::StateType as State>::Size>
@@ -188,16 +188,16 @@ where
     /// Generate states and propagate each independently until a specific event is found `trigger` times.
     #[must_use = "Monte Carlo result must be used"]
     #[allow(clippy::needless_lifetimes)]
-    pub fn run_until_epoch<D, E>(
+    pub fn run_until_epoch<D>(
         self,
-        prop: Propagator<D, E>,
+        prop: Propagator<D>,
         almanac: Arc<Almanac>,
         end_epoch: Epoch,
         num_runs: usize,
     ) -> Results<S, PropResult<S>>
     where
         D: Dynamics<StateType = S>,
-        E: ErrorCtrl,
+
         DefaultAllocator: Allocator<<D::StateType as State>::Size>
             + Allocator<<D::StateType as State>::Size, <D::StateType as State>::Size>
             + Allocator<<D::StateType as State>::VecLength>,
@@ -209,17 +209,17 @@ where
     /// Resumes a Monte Carlo run by skipping the first `skip` items, generating states only after that, and propagate each independently until the specified epoch.
     #[must_use = "Monte Carlo result must be used"]
     #[allow(clippy::needless_lifetimes)]
-    pub fn resume_run_until_epoch<D, E>(
+    pub fn resume_run_until_epoch<D>(
         &self,
-        prop: Propagator<D, E>,
+        prop: Propagator<D>,
         almanac: Arc<Almanac>,
         skip: usize,
         end_epoch: Epoch,
         num_runs: usize,
     ) -> Results<S, PropResult<S>>
     where
         D: Dynamics<StateType = S>,
-        E: ErrorCtrl,
+
         DefaultAllocator: Allocator<<D::StateType as State>::Size>
             + Allocator<<D::StateType as State>::Size, <D::StateType as State>::Size>
             + Allocator<<D::StateType as State>::VecLength>,

src/md/mod.rs

@@ -36,7 +36,7 @@ pub mod prelude {
     pub use crate::dynamics::{Dynamics, NyxError};
     pub use crate::io::gravity::HarmonicsMem;
     pub use crate::md::objective::Objective;
-    pub use crate::propagators::{PropOpts, Propagator};
+    pub use crate::propagators::{IntegratorOptions, Propagator};
     pub use crate::time::{Duration, Epoch, TimeUnits, Unit};
     pub use crate::Spacecraft;
     pub use crate::{State, TimeTagged};

src/md/opti/multipleshooting/altitude_heuristic.rs

@@ -27,10 +27,9 @@ use super::{
 };
 use crate::errors::TargetingError;
 use crate::md::{prelude::*, PropSnafu};
-use crate::propagators::error_ctrl::ErrorCtrl;
 use crate::{Orbit, Spacecraft};
 
-impl<'a, E: ErrorCtrl> MultipleShooting<'a, E, Node, 3, 3> {
+impl<'a> MultipleShooting<'a, Node, 3, 3> {
     /// Builds a multiple shooting structure assuming that the optimal trajectory is near a linear
     /// heuristic in geodetic altitude and direction.
     /// For example, if x0 has an altitude of 100 km and xf has an altitude
@@ -42,7 +41,7 @@ impl<'a, E: ErrorCtrl> MultipleShooting<'a, E, Node, 3, 3> {
         node_count: usize,
         angular_velocity_deg_s: f64,
         body_frame: Frame,
-        prop: &'a Propagator<SpacecraftDynamics, E>,
+        prop: &'a Propagator<SpacecraftDynamics>,
         almanac: Arc<Almanac>,
     ) -> Result<Self, MultipleShootingError> {
         if node_count < 3 {

src/md/opti/multipleshooting/equidistant_heuristic.rs

@@ -21,10 +21,9 @@ use super::multishoot::MultipleShooting;
 pub use super::CostFunction;
 use crate::errors::TargetingError;
 use crate::md::prelude::*;
-use crate::propagators::error_ctrl::ErrorCtrl;
 use crate::{Orbit, Spacecraft};
 
-impl<'a, E: ErrorCtrl> MultipleShooting<'a, E, Node, 3, 3> {
+impl<'a> MultipleShooting<'a, Node, 3, 3> {
     /// Builds a multiple shooting structure assuming that the optimal trajectory is a straight line
     /// between the start and end points. The position of the nodes will be update at each iteration
     /// of the outer loop.
@@ -33,7 +32,7 @@ impl<'a, E: ErrorCtrl> MultipleShooting<'a, E, Node, 3, 3> {
         x0: Spacecraft,
         xf: Orbit,
         node_count: usize,
-        prop: &'a Propagator<SpacecraftDynamics, E>,
+        prop: &'a Propagator<SpacecraftDynamics>,
     ) -> Result<Self, TargetingError> {
         if node_count < 3 {
             error!("At least three nodes are needed for a multiple shooting optimization");

src/md/opti/multipleshooting/multishoot.rs

@@ -24,7 +24,6 @@ use crate::linalg::{DMatrix, DVector, SVector};
 use crate::md::opti::solution::TargeterSolution;
 use crate::md::optimizer::Optimizer;
 use crate::md::{prelude::*, TargetingError};
-use crate::propagators::error_ctrl::ErrorCtrl;
 use crate::pseudo_inverse;
 use crate::{Orbit, Spacecraft};
 
@@ -39,15 +38,9 @@ pub trait MultishootNode<const O: usize>: Copy + Into<[Objective; O]> {
 /// Source of implementation: "Low Thrust Optimization in Cislunar and Translunar space", 2018 Nathan Re (Parrish)
 /// OT: size of the objectives for each node (e.g. 3 if the objectives are X, Y, Z).
 /// VT: size of the variables for targeter node (e.g. 4 if the objectives are thrust direction (x,y,z) and thrust level).
-pub struct MultipleShooting<
-    'a,
-    E: ErrorCtrl,
-    T: MultishootNode<OT>,
-    const VT: usize,
-    const OT: usize,
-> {
+pub struct MultipleShooting<'a, T: MultishootNode<OT>, const VT: usize, const OT: usize> {
     /// The propagator setup (kind, stages, etc.)
-    pub prop: &'a Propagator<SpacecraftDynamics, E>,
+    pub prop: &'a Propagator<SpacecraftDynamics>,
     /// List of nodes of the optimal trajectory
     pub targets: Vec<T>,
     /// Starting point, must be a spacecraft equipped with a thruster
@@ -66,9 +59,7 @@ pub struct MultipleShooting<
     pub all_dvs: Vec<SVector<f64, VT>>,
 }
 
-impl<'a, E: ErrorCtrl, T: MultishootNode<OT>, const VT: usize, const OT: usize>
-    MultipleShooting<'a, E, T, VT, OT>
-{
+impl<'a, T: MultishootNode<OT>, const VT: usize, const OT: usize> MultipleShooting<'a, T, VT, OT> {
     /// Solve the multiple shooting problem by finding the arrangement of nodes to minimize the cost function.
     pub fn solve(
         &mut self,
@@ -287,8 +278,8 @@ impl<'a, E: ErrorCtrl, T: MultishootNode<OT>, const VT: usize, const OT: usize>
     }
 }
 
-impl<'a, E: ErrorCtrl, T: MultishootNode<OT>, const VT: usize, const OT: usize> fmt::Display
-    for MultipleShooting<'a, E, T, VT, OT>
+impl<'a, T: MultishootNode<OT>, const VT: usize, const OT: usize> fmt::Display
+    for MultipleShooting<'a, T, VT, OT>
 {
     #[allow(clippy::or_fun_call, clippy::clone_on_copy)]
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
@@ -357,9 +348,9 @@ impl<T: MultishootNode<O>, const O: usize> fmt::Display for MultipleShootingSolu
 impl<T: MultishootNode<O>, const O: usize> MultipleShootingSolution<T, O> {
     /// Allows building the trajectories between different nodes
     /// This will rebuild the targeters and apply the solutions sequentially
-    pub fn build_trajectories<E: ErrorCtrl>(
+    pub fn build_trajectories(
         &self,
-        prop: &Propagator<SpacecraftDynamics, E>,
+        prop: &Propagator<SpacecraftDynamics>,
         almanac: Arc<Almanac>,
     ) -> Result<Vec<ScTraj>, MultipleShootingError> {
         let mut trajz = Vec::with_capacity(self.nodes.len());

src/md/opti/optimizer.rs

@@ -26,16 +26,17 @@ use crate::md::AstroSnafu;
 use crate::md::PropSnafu;
 use crate::md::StateParameter;
 pub use crate::md::{Variable, Vary};
-use crate::propagators::error_ctrl::ErrorCtrl;
 use std::fmt;
 
 use super::solution::TargeterSolution;
 
+// TODO(now): rename to Differential Controller
+
 /// An optimizer structure with V control variables and O objectives.
 #[derive(Clone)]
-pub struct Optimizer<'a, E: ErrorCtrl, const V: usize, const O: usize> {
+pub struct Optimizer<'a, const V: usize, const O: usize> {
     /// The propagator setup (kind, stages, etc.)
-    pub prop: &'a Propagator<SpacecraftDynamics, E>,
+    pub prop: &'a Propagator<SpacecraftDynamics>,
     /// The list of objectives of this targeter
     pub objectives: [Objective; O],
     /// An optional frame (and Cosm) to compute the objectives in.
@@ -49,7 +50,7 @@ pub struct Optimizer<'a, E: ErrorCtrl, const V: usize, const O: usize> {
     pub iterations: usize,
 }
 
-impl<'a, E: ErrorCtrl, const V: usize, const O: usize> fmt::Display for Optimizer<'a, E, V, O> {
+impl<'a, const V: usize, const O: usize> fmt::Display for Optimizer<'a, V, O> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         let mut objmsg = String::from("");
         for obj in &self.objectives {
@@ -65,12 +66,9 @@ impl<'a, E: ErrorCtrl, const V: usize, const O: usize> fmt::Display for Optimize
     }
 }
 
-impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 3, O> {
+impl<'a, const O: usize> Optimizer<'a, 3, O> {
     /// Create a new Targeter which will apply an impulsive delta-v correction.
-    pub fn delta_v(
-        prop: &'a Propagator<SpacecraftDynamics, E>,
-        objectives: [Objective; O],
-    ) -> Self {
+    pub fn delta_v(prop: &'a Propagator<SpacecraftDynamics>, objectives: [Objective; O]) -> Self {
         Self {
             prop,
             objectives,
@@ -86,10 +84,7 @@ impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 3, O> {
     }
 
     /// Create a new Targeter which will MOVE the position of the spacecraft at the correction epoch
-    pub fn delta_r(
-        prop: &'a Propagator<SpacecraftDynamics, E>,
-        objectives: [Objective; O],
-    ) -> Self {
+    pub fn delta_r(prop: &'a Propagator<SpacecraftDynamics>, objectives: [Objective; O]) -> Self {
         Self {
             prop,
             objectives,
@@ -105,7 +100,7 @@ impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 3, O> {
     }
 
     /// Create a new Targeter which will apply an impulsive delta-v correction on all components of the VNC frame. By default, max step is 0.5 km/s.
-    pub fn vnc(prop: &'a Propagator<SpacecraftDynamics, E>, objectives: [Objective; O]) -> Self {
+    pub fn vnc(prop: &'a Propagator<SpacecraftDynamics>, objectives: [Objective; O]) -> Self {
         Self {
             prop,
             objectives,
@@ -121,10 +116,10 @@ impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 3, O> {
     }
 }
 
-impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 4, O> {
+impl<'a, const O: usize> Optimizer<'a, 4, O> {
     /// Create a new Targeter which will apply a continuous thrust for the whole duration of the segment
     pub fn thrust_dir(
-        prop: &'a Propagator<SpacecraftDynamics, E>,
+        prop: &'a Propagator<SpacecraftDynamics>,
         objectives: [Objective; O],
     ) -> Self {
         Self {
@@ -143,10 +138,10 @@ impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 4, O> {
     }
 }
 
-impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 7, O> {
+impl<'a, const O: usize> Optimizer<'a, 7, O> {
     /// Create a new Targeter which will apply a continuous thrust for the whole duration of the segment
     pub fn thrust_dir_rate(
-        prop: &'a Propagator<SpacecraftDynamics, E>,
+        prop: &'a Propagator<SpacecraftDynamics>,
         objectives: [Objective; O],
     ) -> Self {
         Self {
@@ -168,10 +163,10 @@ impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 7, O> {
     }
 }
 
-impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 10, O> {
+impl<'a, const O: usize> Optimizer<'a, 10, O> {
     /// Create a new Targeter which will apply a continuous thrust for the whole duration of the segment
     pub fn thrust_profile(
-        prop: &'a Propagator<SpacecraftDynamics, E>,
+        prop: &'a Propagator<SpacecraftDynamics>,
         objectives: [Objective; O],
     ) -> Self {
         Self {
@@ -196,10 +191,10 @@ impl<'a, E: ErrorCtrl, const O: usize> Optimizer<'a, E, 10, O> {
     }
 }
 
-impl<'a, E: ErrorCtrl, const V: usize, const O: usize> Optimizer<'a, E, V, O> {
+impl<'a, const V: usize, const O: usize> Optimizer<'a, V, O> {
     /// Create a new Targeter which will apply an impulsive delta-v correction.
     pub fn new(
-        prop: &'a Propagator<SpacecraftDynamics, E>,
+        prop: &'a Propagator<SpacecraftDynamics>,
         variables: [Variable; V],
         objectives: [Objective; O],
     ) -> Self {
@@ -215,7 +210,7 @@ impl<'a, E: ErrorCtrl, const V: usize, const O: usize> Optimizer<'a, E, V, O> {
 
     /// Create a new Targeter which will apply an impulsive delta-v correction.
     pub fn in_frame(
-        prop: &'a Propagator<SpacecraftDynamics, E>,
+        prop: &'a Propagator<SpacecraftDynamics>,
         variables: [Variable; V],
         objectives: [Objective; O],
         objective_frame: Frame,
@@ -232,7 +227,7 @@ impl<'a, E: ErrorCtrl, const V: usize, const O: usize> Optimizer<'a, E, V, O> {
 
     /// Create a new Targeter which will apply an impulsive delta-v correction on the specified components of the VNC frame.
     pub fn vnc_with_components(
-        prop: &'a Propagator<SpacecraftDynamics, E>,
+        prop: &'a Propagator<SpacecraftDynamics>,
         variables: [Variable; V],
         objectives: [Objective; O],
     ) -> Self {

src/md/opti/raphson_finite_diff.rs

@@ -26,15 +26,14 @@ use crate::md::{prelude::*, AstroSnafu, GuidanceSnafu, UnderdeterminedProblemSna
 use crate::md::{PropSnafu, StateParameter};
 pub use crate::md::{Variable, Vary};
 use crate::polyfit::CommonPolynomial;
-use crate::propagators::error_ctrl::ErrorCtrl;
 use crate::pseudo_inverse;
 use hifitime::TimeUnits;
 use rayon::prelude::*;
 use snafu::{ensure, ResultExt};
 #[cfg(not(target_arch = "wasm32"))]
 use std::time::Instant;
 
-impl<'a, E: ErrorCtrl, const V: usize, const O: usize> Optimizer<'a, E, V, O> {
+impl<'a, const V: usize, const O: usize> Optimizer<'a, V, O> {
     /// Differential correction using finite differencing
     #[allow(clippy::comparison_chain)]
     pub fn try_achieve_fd(