Struct hexasphere::CubeBase

pub struct CubeBase;

Implements a cube as the base shape.

• 8 vertices
• 12 faces (2 triangles per face makes 12 technically)
• 18 edges

This is a cube where half the diagonal is 1.0. This is done to preserve the accuracy of the subdivisions at higher levels of subdivision.

Trait Implementations

impl BaseShape for CubeBase

fn initial_points(&self) -> &'static [Vec3A]

The initial vertices for the triangle. Note that Vec3A::new is not a const fn(), hence I recommend you use lazy_static. Check the source file for this crate and look for the constants module at the bottom for an example.

fn triangles(&self) -> &'static [Triangle]

Base triangles for the shape.

const EDGES: usize

Number of unique edges defined in the contents of triangles(). This number is 5 for a square for example: text a - 0 - b | / | 3 4 1 | / | d - 2 - c

fn interpolate(&self, a: Vec3A, b: Vec3A, p: f32) -> Vec3A

Basic function used for interpolation. When p is 0.0, a is expected. When p is 1.0, b is expected. There are three options already implemented in this crate: - [lerp] implements linear interpolation. - [geometric_slerp] implements spherical interpolation. (Interpolates along an arc on a sphere) - [normalized_lerp] implements cheaper yet less accurate spherical interpolation. The accuracy decreases as the angle between the two points on the unit sphere increases.

fn interpolate_half(&self, a: Vec3A, b: Vec3A) -> Vec3A

If an optimization is available for the case where p is 0.5, this function should implement it. This defaults to calling interpolate(a, b, 0.5) however.

fn interpolate_multiple(
    &self,
    a: Vec3A,
    b: Vec3A,
    indices: &[u32],
    points: &mut [Vec3A]
)

If an optimization is available for the case where p varies but a and b don't this function should implement it.

impl Clone for CubeBase

fn clone(&self) -> CubeBase

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for CubeBase

impl Debug for CubeBase

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CubeBase

fn default() -> CubeBase

Returns the "default value" for a type.