polar
[github]the half star, bar and arc, glinting now and then
companies 51×28 30 fps in colour or one ink 6.4 kB [report a bug]
q8888p d8888b d8888b _p8q, d8888b qq, q88888q, d8888b _8888p "8888888q, d8888b q888888P "8888888q, d8888b p888888" "8888888q, d8888b q88888P' "8888888q, d8888b q88888P "8888888qd8888b .888888' "88888888888b q88888| ___________________888888888b 888888 8888888888888888888888888888b 888888 8888888888888888888888888888b 888888 """""""""""""""""""888888888b 888888 _p8888888888b d88888| _p888888P88888b '888888, _p888888P' d8888b )88888q, _p888888P' d8888b O88888q, _p888888P' d8888b O888888_ _p888888P' d8888b "888888b Y88888P' d8888b "8888" 'Y8P' d8888b "" d8888b d8888b d8888P q8888p d8888b d8888b _p8q, d8888b qq, q88888q, d8888b _8888p "8888888q, d8888b q888888P "8888888q, d8888b p888888" "8888888q, d8888b q88888P' "8888888q, d8888b q88888P "8888888qd8888b .888888' "88888888888b q88888| ___________________888888888b 888888 8888888888888888888888888888b 888888 8888888888888888888888888888b 888888 """""""""""""""""""888888888b 888888 _p8888888888b d88888| _p888888P88888b '888888, _p888888P' d8888b )88888q, _p888888P' d8888b O88888q, _p888888P' d8888b O888888_ _p888888P' d8888b "888888b Y88888P' d8888b "8888" 'Y8P' d8888b "" d8888b d8888b d8888P
download
use it
html
<script type="module" src="https://ascii.rest/ascii.js"></script>
<ascii-art piece="polar" options='{"shine":5}'></ascii-art> No install and no build step. ascii.js defines the <ascii-art> tag, loads the piece from ascii.rest, plays it while it is on screen, and holds the first frame for anyone who prefers reduced motion. Add mono, <ascii-art piece="polar" mono>, for one ink.
react
// npm install ascii.rest
import { Ascii } from "ascii.rest/react";
import { polar } from "ascii.rest/pieces";
<Ascii piece={polar} options={{"shine":5}} /> A client component, so it works in the Next.js app router as it is. Pass the name instead, piece="polar", to fetch the piece only when it mounts. Add mono for one ink.
astro
---
// npm install ascii.rest
import Ascii from "ascii.rest/astro";
---
<Ascii piece="polar" options={{"shine":5}} /> Renders the first frame on the server, so the page is whole before any script runs, then plays the piece once it loads. Add mono for one ink.
typescript
// npm install ascii.rest
import { mount } from "ascii.rest";
import { polar } from "ascii.rest/pieces";
const el = document.querySelector<HTMLCanvasElement>("canvas")!;
const stop = mount(el, polar, {"shine":5}); mount plays a piece in a <pre>, or on a <canvas> for the coloured ones, and returns a function that stops it. Every piece, option and frame is typed. Mount it in a <pre> for one ink.
terminal
npx ascii.rest polar
Plays it in your terminal, in colour, until you press a key. Add --mono for the terminal's own colour. Add --light for a light terminal. Add --seconds 5 to stop it on its own; npx ascii.rest list shows every piece. In a CLI of your own, play("polar", { seconds: 2 }) from ascii.rest/terminal shows it as a splash screen.
readme
<picture> <source media="(prefers-color-scheme: dark)" srcset="https://ascii.rest/svg/polar.dark.svg"> <img alt="polar" src="https://ascii.rest/svg/polar.svg" width="255"> </picture>
An animated SVG that needs no script, so it plays in a GitHub README, which runs none. GitHub shows the dark one in its dark theme. It holds still for anyone who prefers reduced motion.
/*
* polar: the Polar logo, half a star, a bar and an arc, cut by a circle, with
* a glint crossing it every few seconds.
*
* Drawn from Polar's own logomark, from polar.sh/brand: each cell holds the
* character whose shape best matches the logo's edge through it, and 8 where
* the logo is solid. On a canvas it is black, and a light grey on a dark page,
* where black would sink into it; in a <pre> it is one ink, from the same
* drawing. The logo is a trademark of its owner, shown here to name the
* company.
*/
import type { Frame, Meta } from "../types.ts";
export interface PolarOptions {
[key: string]: unknown;
/** Seconds between glints; 0 keeps the logo still. */
shine: number;
}
export const meta = {
name: "polar",
category: "companies",
note: "the half star, bar and arc, glinting now and then",
cols: 51,
rows: 28,
fps: 30,
options: { shine: 5 },
// The logo's colour for a light page, then for a dark one; each as drawn, then twice lighter for the glint.
palette: [
"#000000", "#595959", "#b3b3b3", "#e8ebef", "#f0f2f5", "#f8f9fa",
],
} satisfies Meta<PolarOptions>;
// In a <pre>, in the page's own colour.
const MONO = String.raw`
q8888p
d8888b
d8888b
_p8q, d8888b qq,
q88888q, d8888b _8888p
"8888888q, d8888b q888888P
"8888888q, d8888b p888888"
"8888888q, d8888b q88888P'
"8888888q, d8888b q88888P
"8888888qd8888b .888888'
"88888888888b q88888|
___________________888888888b 888888
8888888888888888888888888888b 888888
8888888888888888888888888888b 888888
"""""""""""""""""""888888888b 888888
_p8888888888b d88888|
_p888888P88888b '888888,
_p888888P' d8888b )88888q,
_p888888P' d8888b O88888q,
_p888888P' d8888b O888888_
_p888888P' d8888b "888888b
Y88888P' d8888b "8888"
'Y8P' d8888b ""
d8888b
d8888b
d8888P
`;
// On a canvas, and the colour of each cell: an index into the logo's colours.
const ART = String.raw`
q8888p
d8888b
d8888b
_p8q, d8888b qq,
q88888q, d8888b _8888p
"8888888q, d8888b q888888P
"8888888q, d8888b p888888"
"8888888q, d8888b q88888P'
"8888888q, d8888b q88888P
"8888888qd8888b .888888'
"88888888888b q88888|
___________________888888888b 888888
8888888888888888888888888888b 888888
8888888888888888888888888888b 888888
"""""""""""""""""""888888888b 888888
_p8888888888b d88888|
_p888888P88888b '888888,
_p888888P' d8888b )88888q,
_p888888P' d8888b O88888q,
_p888888P' d8888b O888888_
_p888888P' d8888b "888888b
Y88888P' d8888b "8888"
'Y8P' d8888b ""
d8888b
d8888b
d8888P
`;
const INK = String.raw`
000000
000000
000000
00000 000000 000
00000000 000000 000000
0000000000 000000 00000000
0000000000 000000 00000000
0000000000 000000 00000000
0000000000 000000 0000000
000000000000000 00000000
0000000000000 0000000
00000000000000000000000000000 000000
00000000000000000000000000000 000000
00000000000000000000000000000 000000
00000000000000000000000000000 000000
0000000000000 0000000
000000000000000 00000000
0000000000 000000 00000000
0000000000 000000 00000000
0000000000 000000 00000000
0000000000 000000 00000000
00000000 000000 000000
00000 000000 00
000000
000000
000000
`;
const START = 0.5; // seconds before the first glint
const PASS = 2; // seconds a glint takes to cross
const HALF = 5; // half its width, in cells
const LEAN = 0.9; // cells it shifts left a row down, so it leans like a slash
const SOLID = "8dbqpPYOo0"; // what the glint turns to slashes; thin edges keep their shape
const lines = (art: string) => art.slice(1, -1).split("\n").map((line) => line.padEnd(meta.cols));
export default function polar({ shine = meta.options.shine }: Partial<PolarOptions> = {}): Frame {
const { cols, rows } = meta;
const mono = lines(MONO), art = lines(ART), ink = lines(INK);
const n = meta.palette.length / 6;
const every = shine > 0 ? Math.max(shine, PASS + 0.5) : 0;
// The glint crosses the logo's ink, edge to edge, rather than the whole frame.
let lo = Infinity, hi = -Infinity;
for (const pic of [mono, art])
pic.forEach((line, y) => {
for (let x = 0; x < cols; x++) if (line[x] !== " ") (lo = Math.min(lo, x + LEAN * y)), (hi = Math.max(hi, x + LEAN * y));
});
const span = hi - lo + 2 * HALF;
return (t, { paper = false, color } = {}) => {
const pic = color ? art : mono;
const since = t - START;
const at = every && since >= 0 ? lo - HALF + (span * (since % every)) / PASS : -Infinity;
const out: string[] = [];
for (let y = 0; y < rows; y++) {
let line = "";
for (let x = 0; x < cols; x++) {
let ch = pic[y][x];
if (ch !== " ") {
const d = Math.abs(x + LEAN * y - at);
let k = d < HALF ? 1 - d / HALF : 0;
k = k * k * (3 - 2 * k);
if (k > 0.55 && SOLID.includes(ch)) ch = "/";
if (color) color[y * cols + x] = (paper ? 0 : 3 * n) + (k > 0.6 ? 2 : k > 0.25 ? 1 : 0) * n + parseInt(ink[y][x], 36);
}
line += ch;
}
out.push(line);
}
return out.join("\n");
};
}