Struct Chart 

pub struct Chart {
    pub normal: Vec3,
    pub tangent_s: Vec3,
    pub tangent_t: Vec3,
    pub axis: usize,
    pub sign: f64,
}

One cube-face chart: direction(s, t) = normal + s·tangent_s + t·tangent_t, with tangent_s × tangent_t = normal, so ∂p/∂s × ∂p/∂t points OUT of the sphere everywhere on the chart.

Fields

normal: Vec3

tangent_s: Vec3

tangent_t: Vec3

axis: usize

Basis axis the chart faces along, 0..3.

sign: f64

+1 or -1: which end of that axis.

Trait Implementations

impl Clone for Chart

fn clone(&self) -> Chart

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Chart

impl Debug for Chart

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

Formats the value using the given formatter.