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Application prototype #14

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glen merged 101 commits from app-proto into main 2024-10-21 23:38:28 +00:00
Conversation 1 Commits 101 Files Changed 12 +67 -12
2 changed files with 67 additions and 12 deletions
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27
app-proto/full-interface/src/engine.rs Normal file
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@ -0,0 +1,27 @@
use nalgebra::DVector;
// the sphere with the given center and radius, with inward-pointing normals
pub fn sphere(center_x: f64, center_y: f64, center_z: f64, radius: f64) -> DVector<f64> {
let center_norm_sq = center_x * center_x + center_y * center_y + center_z * center_z;
DVector::from_column_slice(&[
center_x / radius,
center_y / radius,
center_z / radius,
0.5 / radius,
0.5 * (center_norm_sq / radius - radius)
])
}
// the sphere of curvature `curv` whose closest point to the origin has position
// `off * dir` and normal `dir`, where `dir` is a unit vector. setting the
// curvature to zero gives a plane
pub fn sphere_with_offset(dir_x: f64, dir_y: f64, dir_z: f64, off: f64, curv: f64) -> DVector<f64> {
let norm_sp = 1.0 + off * curv;
DVector::from_column_slice(&[
norm_sp * dir_x,
norm_sp * dir_y,
norm_sp * dir_z,
0.5 * curv,
off * (1.0 + 0.5 * off * curv)
])
}

52
app-proto/full-interface/src/main.rs
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@ -1,6 +1,7 @@
mod add_remove;
mod assembly;
mod display;
mod engine;
mod outline;
use nalgebra::DVector;
@ -34,36 +35,63 @@ fn main() {
let assemb = &state.assembly;
let _ = assemb.try_insert_element(
Element {
id: String::from("wing_a"),
label: String::from("Wing A"),
id: String::from("gemini_a"),
label: String::from("Castor"),
color: [1.00_f32, 0.25_f32, 0.00_f32],
rep: DVector::<f64>::from_column_slice(&[0.5, 0.5, 0.0, 0.5, -0.25]),
rep: engine::sphere(0.5, 0.5, 0.0, 1.0),
constraints: BTreeSet::default()
}
);
let _ = assemb.try_insert_element(
Element {
id: String::from("wing_b"),
label: String::from("Wing B"),
id: String::from("gemini_b"),
label: String::from("Pollux"),
color: [0.00_f32, 0.25_f32, 1.00_f32],
rep: DVector::<f64>::from_column_slice(&[-0.5, -0.5, 0.0, 0.5, -0.25]),
rep: engine::sphere(-0.5, -0.5, 0.0, 1.0),
constraints: BTreeSet::default()
}
);
let _ = assemb.try_insert_element(
Element {
id: String::from("central"),
label: String::from("Central"),
color: [0.75_f32, 0.75_f32, 0.75_f32],
rep: DVector::<f64>::from_column_slice(&[0.0, 0.0, 0.0, 0.4, -0.625]),
id: String::from("ursa_major"),
label: String::from("Ursa major"),
color: [0.25_f32, 0.00_f32, 1.00_f32],
rep: engine::sphere(-0.5, 0.5, 0.0, 0.75),
constraints: BTreeSet::default()
}
);
let _ = assemb.try_insert_element(
Element {
id: String::from("ursa_minor"),
label: String::from("Ursa minor"),
color: [0.25_f32, 1.00_f32, 0.00_f32],
rep: engine::sphere(0.5, -0.5, 0.0, 0.5),
constraints: BTreeSet::default()
}
);
let _ = assemb.try_insert_element(
Element {
id: String::from("moon_deimos"),
label: String::from("Deimos"),
color: [0.75_f32, 0.75_f32, 0.00_f32],
rep: engine::sphere(0.0, 0.15, 1.0, 0.25),
constraints: BTreeSet::default()
}
);
let _ = assemb.try_insert_element(
Element {
id: String::from("moon_phobos"),
label: String::from("Phobos"),
color: [0.00_f32, 0.75_f32, 0.50_f32],
rep: engine::sphere(0.0, -0.15, -1.0, 0.25),
constraints: BTreeSet::default()
}
);
assemb.insert_constraint(
Constraint {
args: (
assemb.elements_by_id.with(|elts_by_id| elts_by_id["wing_a"]),
assemb.elements_by_id.with(|elts_by_id| elts_by_id["wing_b"])
assemb.elements_by_id.with(|elts_by_id| elts_by_id["gemini_a"]),
assemb.elements_by_id.with(|elts_by_id| elts_by_id["gemini_b"])
),
rep: 0.5
}