nyx_space/md/opti/multipleshooting/
mod.rs

1/*
2    Nyx, blazing fast astrodynamics
3    Copyright (C) 2018-onwards Christopher Rabotin <christopher.rabotin@gmail.com>
4
5    This program is free software: you can redistribute it and/or modify
6    it under the terms of the GNU Affero General Public License as published
7    by the Free Software Foundation, either version 3 of the License, or
8    (at your option) any later version.
9
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU Affero General Public License for more details.
14
15    You should have received a copy of the GNU Affero General Public License
16    along with this program.  If not, see <https://www.gnu.org/licenses/>.
17*/
18
19use anise::errors::{AlmanacError, PhysicsError};
20use snafu::Snafu;
21
22use crate::md::{trajectory::TrajError, TargetingError};
23
24pub mod altitude_heuristic;
25pub mod ctrlnodes;
26pub mod equidistant_heuristic;
27pub mod multishoot;
28
29/// Built-in cost functions to minimize
30#[derive(Copy, Clone, Debug, PartialEq, Eq)]
31pub enum CostFunction {
32    /// J = ∫ \vec{u}^T\vec{u} dt
33    MinimumEnergy,
34    /// J = ∫ |\vec{u}| dt -- Warning, this may lead to loads to bang-coast-bang solutions
35    MinimumFuel,
36}
37
38#[derive(Debug, Snafu)]
39pub enum MultipleShootingError {
40    #[snafu(display("segment #{segment} encountered {source}"))]
41    TargetingError {
42        segment: usize,
43        source: TargetingError,
44    },
45    #[snafu(display("during a multiple shooting, encountered {source}"))]
46    MultiShootTrajError { source: TrajError },
47    #[snafu(display("duration a multiple shoot, issue due to Almanac: {action} {source}"))]
48    MultiShootAlmanacError {
49        #[snafu(source(from(AlmanacError, Box::new)))]
50        source: Box<AlmanacError>,
51        action: &'static str,
52    },
53    #[snafu(display("duration a multiple shoot, physics issue:  {source}"))]
54    MultiShootPhysicsError { source: PhysicsError },
55}
nyx_space/md/opti/multipleshooting/mod.rs

nyx_space/md/opti/multipleshooting/
mod.rs
