Struct Mark 

pub struct Mark {
    pub name: &'static str,
    pub shape: Shape,
    pub specks: Specks,
    pub fill: f32,
    pub lattice: (usize, usize),
    pub seed: u32,
}

One mark: a shape, the lattice it is annealed on, and the seed.

Fields

name: &'static str

Appears in the manifest and in test failures; kebab-case.

shape: Shape

What the field aims at.

specks: Specks

The three pinned specks, or Specks::None.

fill: f32

How much of the lattice the mark fills, as a fraction of the binding axis — its diameter, for a Shape::Disc. Lower for round marks, which have to clear a circle.

lattice: (usize, usize)

Lattice size in sites. This is the grain of the noise: an icon painted a block a site reads as the same material as the landing page, whatever the tile it ends up in, because the blocks are the page’s own — bigger on screen, never resampled.

seed: u32

The RNG seed: which run of the anneal this is. Always one of the twelve anneal.rs’s crystallisation property test measures, so the run behind a shipped image is one the test suite has actually seen — and, for everything but the wordmark, the one of those twelve that came out cleanest, since a seed is a free choice and there is no reason to ship a worse frame than the schedule can give. WORDMARK keeps the landing page’s own seed instead (site/src/config/anim.ts), because a logo that is not the frame the page ends on would be a different picture wearing the same name; BANNER cannot be that frame anyway — its lattice is a different shape — so it is free to take the cleanest run too.

Implementations

impl Mark

pub fn mask(&self) -> Vec<bool>

The shape the field pulls towards, as a bitmap on this mark’s lattice, specks included.

fn disc(&self, fill: f32) -> Vec<bool>

A disc of fill of the tile, centred — the ground a Shape::Disc is and a Shape::Knockout cuts into.

pub fn speck_sites(&self) -> Vec<(usize, usize)>

The sites this mark pins up-spin: its specks’ centres, and nothing else. Empty for Specks::None.

pub fn crystallise(&self) -> Lattice

Runs the shipped anneal to its end and returns the lattice it froze into: true where the spin is up (lit).

This is the snap. It is the same schedule ([AnnealSchedule::default]), the same sweep count ([DEFAULT_TOTAL_SWEEPS]) and the same dynamics the landing page scrolls through, stopped at the end of the schedule — so a brand image is the last frame of the page’s own animation rather than a drawing of one.

pub fn agreement(&self) -> f32

The fraction of sites that came out agreeing with the mask — the same measure anneal.rs’s crystallisation property test applies to the landing page, applied here to a mark that is not the wordmark and a lattice that is not 220x160.

Trait Implementations

impl Clone for Mark

fn clone(&self) -> Mark

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Mark