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Test it!

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This commit is contained in:
numzero 2024-05-07 14:50:17 +03:00
parent 2ee64fb177
commit 9997bbabb4
2 changed files with 44 additions and 5 deletions
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3
Cargo.toml
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@ -16,3 +16,6 @@ glam = "0.27.0"
flo_draw = "0.3.1" flo_draw = "0.3.1"
flo_canvas = "0.3.1" flo_canvas = "0.3.1"
itertools-num = "0.1.3" itertools-num = "0.1.3"
[dev-dependencies]
approx = "0.5.1"

46
src/bin/flat.rs
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@ -5,6 +5,9 @@ use glam::*;
use riemann::{Decomp2, Metric, trace_iter}; use riemann::{Decomp2, Metric, trace_iter};
use crate::boundary::Loop; use crate::boundary::Loop;
#[cfg(test)]
use approx::assert_abs_diff_eq;
pub fn main() { pub fn main() {
let space = Coil { let space = Coil {
scale: 3.0, scale: 3.0,
@ -220,11 +223,44 @@ impl Rect {
fn b(&self) -> f32 { 2.0 * self.γ() - 1.0 } fn b(&self) -> f32 { 2.0 * self.γ() - 1.0 }
fn root(&self, x: f32) -> f32 { ((2.0 * self.γ() - 1.0).powi(2) + 4.0 * (1.0 - self.γ()) * x / self.ri()).sqrt() } fn root(&self, x: f32) -> f32 { ((2.0 * self.γ() - 1.0).powi(2) + 4.0 * (1.0 - self.γ()) * x / self.ri()).sqrt() }
fn d(&self, u: f32) -> f32 { 2.0 * self.a() * u.abs() + self.b() } fn d(&self, u: f32) -> f32 { 2.0 * self.a() * u + self.b() }
fn x(&self, u: f32) -> f32 { (self.a() * u.abs() + self.b()) * u } pub fn x(&self, u: f32) -> f32 { (self.a() * u.abs() + self.b()) * u }
fn u(&self, x: f32) -> f32 { 0.5 * self.ri() * (1.0 - 2.0 * self.γ() + self.root(x.abs())) / (1.0 - self.γ()) * x.signum() } pub fn u(&self, x: f32) -> f32 { 0.5 * self.ri() * (1.0 - 2.0 * self.γ() + self.root(x.abs())) / (1.0 - self.γ()) * x.signum() }
fn dx(&self, u: f32, du: f32) -> f32 { du * self.d(u) } pub fn dx(&self, u: f32, du: f32) -> f32 { du * self.d(u.abs()) }
fn du(&self, x: f32, dx: f32) -> f32 { dx / self.d(self.u(x)) } pub fn du(&self, x: f32, dx: f32) -> f32 { dx / self.root(x.abs()) }
}
#[test]
fn test_rect() {
let r = Rect {
outer_radius: 50.0,
inner_radius: 20.0,
external_halflength: 100.0,
internal_halflength: 10.0,
};
assert_abs_diff_eq!(r.x(r.internal_halflength), r.external_halflength, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.x(-r.internal_halflength), -r.external_halflength, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.u(r.external_halflength), r.internal_halflength, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.u(-r.external_halflength), -r.internal_halflength, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.u(r.x(1.0)), 1.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.u(r.x(5.0)), 5.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.u(r.x(-5.0)), -5.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.u(r.x(10.0)), 10.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.x(r.u(10.0)), 10.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.x(r.u(50.0)), 50.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.x(r.u(-50.0)), -50.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.x(r.u(100.0)), 100.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.d(r.u(10.0)), r.root(10.0), epsilon = 1.0e-5);
assert_abs_diff_eq!(r.d(r.u(50.0)), r.root(50.0), epsilon = 1.0e-5);
assert_abs_diff_eq!(r.d(r.u(100.0)), r.root(100.0), epsilon = 1.0e-5);
assert_abs_diff_eq!(r.du(10.0, r.dx(r.u(10.0), 3.0)), 3.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.du(50.0, r.dx(r.u(50.0), 3.0)), 3.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.du(-50.0, r.dx(r.u(-50.0), 3.0)), 3.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.du(100.0, r.dx(r.u(100.0), 3.0)), 3.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.dx(1.0, r.du(r.x(1.0), 3.0)), 3.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.dx(5.0, r.du(r.x(5.0), 3.0)), 3.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.dx(-5.0, r.du(r.x(-5.0), 3.0)), 3.0, epsilon = 1.0e-5);
assert_abs_diff_eq!(r.dx(10.0, r.du(r.x(10.0), 3.0)), 3.0, epsilon = 1.0e-5);
} }
impl Metric for Rect { impl Metric for Rect {