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Magba is a performant analytical magnetic computation library for Rust.

>> cargo add magba

Learn more at docs.rs/magba.

Features

• Compute magnetic fields analytically for various source geometries.
• Create magnetic sources and group them as source collections.
• Move and rotate objects in 3D space.
• Increase performance using parallelization with Rayon.
• Support calculation with [f32] and [f64].
• Python bindings available via Pymagba

Quick Start

To install, simply: cargo add magba.

use magba::*;
use nalgebra::*;
use std::f64::consts::PI;

// Define magnetic sources
let cylinder = Box::new(CylinderMagnet::default());
let cuboid = Box::new(CuboidMagnet::new(
    Point3::new(1.0, 0.0, 0.0),  // position (m)
    UnitQuaternion::identity(),  // orientation
    Vector3::z(),                // polarization (T)
    Vector3::new(0.1, 0.2, 0.3), // dimensions (m)
));
//!
// Grouping sources as collection
let mut collection = MultiSourceCollection::from_sources(vec![cylinder, cuboid]);
collection.add(Box::new(Dipole::default()));

// Observer positions
let points = [
    Point3::new(0.0, 0.0, 0.020),
    Point3::new(0.0, 0.0, 0.025),
    Point3::new(0.0, 0.0, 0.030),
];

// Compute B-field (Magnetic flux density [T])
let b_fields = collection.get_B(&points);
// [
//      [ -2.7063724257464133e-5,  -3.533949646070574e-17,  0.4715809600578704  ],
//      [ -3.381192498299282e-5 ,   0.0,                    0.4592848558923018  ],
//      [ -4.0548326050340215e-5,   0.0,                    0.45377483361434284 ],
// ]

// Move and Rotate
collection.translate(&Translation3::new(0.0, 0.0, 0.010));
collection.rotate(&UnitQuaternion::from_scaled_axis(Vector3::new(PI / 4.0, 0.0, 0.0)));

let b_fields = collection.get_B(&points);
// [
//     [ -9.575129388363597e-6 ,  -0.24516787434696088,  0.4573303607411665  ],
//     [ -1.4358446356125264e-5,  -0.2948988353221851 ,  0.3578212873125478  ],
//     [ -1.9136669915278972e-5,  -0.30697154302354923,  0.33360985034592394 ],
// ]

Testing

Results are validated against MagpyLib and reference data. See /tests/test-data and the accuracy report for details.

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Learn more at docs.rs/magba.