Basic hitomezashi pattern

This commit is contained in:
arne 2024-07-18 21:39:48 +02:00
commit b797f66721
12 changed files with 2345 additions and 0 deletions

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.envrc Normal file
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use flake

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.gitignore vendored Normal file
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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
pnpm-debug.log*
lerna-debug.log*
node_modules
dist
dist-ssr
*.local
# Editor directories and files
.vscode/*
!.vscode/extensions.json
.idea
.DS_Store
*.suo
*.ntvs*
*.njsproj
*.sln
*.sw?

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flake.lock generated Normal file
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{
"nodes": {
"nixpkgs": {
"locked": {
"lastModified": 1701718080,
"narHash": "sha256-6ovz0pG76dE0P170pmmZex1wWcQoeiomUZGggfH9XPs=",
"path": "/nix/store/aiv01710wqn2b7hms2253d1cq89kdzh8-source",
"rev": "2c7f3c0fb7c08a0814627611d9d7d45ab6d75335",
"type": "path"
},
"original": {
"owner": "NixOS",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"nixpkgs": "nixpkgs"
}
}
},
"root": "root",
"version": 7
}

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flake.nix Normal file
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{
description = "compost.party";
inputs.nixpkgs.url = github:NixOS/nixpkgs;
outputs = { self, nixpkgs }:
let
system = "x86_64-linux";
pkgs = import nixpkgs { inherit system; };
lib = pkgs.lib;
in {
devShell.${system} = pkgs.mkShell rec {
buildInputs = [
pkgs.nodejs-18_x
pkgs.nodePackages.pnpm
];
};
};
}

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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Thi.ng rdom</title>
<style>html, body { padding: 0; margin: 0; min-height: 100vh; }</style>
</head>
<body>
<div id="app"></div>
<script type="module" src="/src/main.ts"></script>
</body>
</html>

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package-lock.json generated Normal file

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package.json Normal file
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{
"name": "computersandblues.hitomezashi",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "tsc && vite build",
"preview": "vite preview"
},
"dependencies": {
"@thi.ng/geom": "^8.0.3",
"@thi.ng/rdom-canvas": "*",
"@thi.ng/rstream": "*",
"@thi.ng/transducers": "*"
},
"devDependencies": {
"typescript": "^5.2.2",
"typescript-language-server": "*",
"vite": "^5.3.4"
}
}

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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>

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Width:  |  Height:  |  Size: 1.5 KiB

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import { line, group, translate, asSvg, svgDoc } from "@thi.ng/geom";
import { $canvas } from "@thi.ng/rdom-canvas";
import { reactive } from "@thi.ng/rstream";
import { cycle, takeWhile, comp, mapIndexed, transduce, push, map } from "@thi.ng/transducers"
const xs = cycle([0,1,0,1,0,1])
const ys = cycle([1,0,1,1,0,1])
const cellSize = 25
// available size for a2: 420 * 594
const width = 420
const height = 594
const minPadding = cellSize
// calculate available drawing area
const xCells = Math.floor((width - 2 * minPadding) / cellSize)
const xPadding = (width - (xCells * cellSize)) / 2
const yCells = Math.floor((height - 2 * minPadding) / cellSize)
const yPadding = (height - (yCells * cellSize)) / 2
const size = [width, height]
// build a list of start positions
const startPoints = (pattern: Iterable<number>, maxCoord: number) =>
transduce(
comp(
mapIndexed((cell, val) => [cell * cellSize, val] as const),
takeWhile(([coord, _]) => coord <= maxCoord),
),
push(),
pattern
)
const xStarts = startPoints(xs, width - 2 * xPadding)
const yStarts = startPoints(ys, height - 2 * yPadding)
const yLines = xStarts.flatMap(
([xCoord, val]: [number, number]) =>
Array
.from({ length: yCells })
.map((_, cell) => (cell + val) % 2 === 0 // start at the beginning or skip it
? line([xCoord, cell * cellSize], [xCoord, (cell + 1) * cellSize])
: null)
.filter(v => v != null)
)
console.log({ xStarts, yStarts })
const xLines = yStarts.flatMap(
([yCoord, val]: [number, number]) =>
Array
.from({ length: xCells })
.map((_, cell) => (cell + val) % 2 === 0 // start at the beginning or skip it
? line([cell * cellSize, yCoord], [(cell + 1) * cellSize, yCoord])
: null)
.filter(v => v != null)
)
const scene = reactive(
translate(
group(
{__background: '#eee', stroke: '#222' },
[...yLines, ...xLines]
),
[xPadding, yPadding]
)
)
$canvas(scene, size).mount(document.body)
// console.log(asSvg(svgDoc({ viewBox: `0 0 ${size[0]} ${size[1]}` }, scene.deref())))

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/// <reference types="vite/client" />

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{
"compilerOptions": {
"target": "ES2020",
"useDefineForClassFields": true,
"module": "ESNext",
"lib": ["ES2020", "DOM", "DOM.Iterable"],
"skipLibCheck": true,
/* Bundler mode */
"moduleResolution": "bundler",
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
"moduleDetection": "force",
"noEmit": true,
/* Linting */
"strict": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"noFallthroughCasesInSwitch": true
},
"include": ["src"]
}

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export default {
build: {
sourcemap: true
}
}