parry3d/transformation/to_outline/
cuboid_to_outline.rs

1use crate::bounding_volume::Aabb;
2use crate::math::{Point, Real, Vector};
3use crate::shape::Cuboid;
4use crate::transformation::utils;
5use alloc::{vec, vec::Vec};
6
7impl Aabb {
8    /// Outlines this Aabb’s shape using polylines.
9    pub fn to_outline(&self) -> (Vec<Point<Real>>, Vec<[u32; 2]>) {
10        let center = self.center();
11        let half_extents = self.half_extents();
12        let mut cube_mesh = Cuboid::new(half_extents).to_outline();
13        cube_mesh.0.iter_mut().for_each(|p| *p += center.coords);
14        cube_mesh
15    }
16}
17
18impl Cuboid {
19    /// Outlines this cuboid’s shape using polylines.
20    pub fn to_outline(&self) -> (Vec<Point<Real>>, Vec<[u32; 2]>) {
21        let (vtx, idx) = unit_cuboid_outline();
22        (utils::scaled(vtx, self.half_extents * 2.0), idx)
23    }
24}
25
26/**
27 * Generates a cuboid shape with a split index buffer.
28 *
29 * The cuboid is centered at the origin, and has its half extents set to 0.5.
30 */
31fn unit_cuboid_outline() -> (Vec<Point<Real>>, Vec<[u32; 2]>) {
32    let aabb = Aabb::from_half_extents(Point::origin(), Vector::repeat(0.5));
33    (
34        aabb.vertices().to_vec(),
35        vec![
36            [0, 1],
37            [1, 2],
38            [2, 3],
39            [3, 0],
40            [4, 5],
41            [5, 6],
42            [6, 7],
43            [7, 4],
44            [0, 4],
45            [1, 5],
46            [2, 6],
47            [3, 7],
48        ],
49    )
50}
parry3d/transformation/to_outline/cuboid_to_outline.rs

parry3d/transformation/to_outline/
cuboid_to_outline.rs
