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4f1e73d498 |
1
package-lock.json
generated
1
package-lock.json
generated
@ -80,6 +80,7 @@
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},
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"node_modules/@clack/prompts/node_modules/is-unicode-supported": {
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"version": "1.3.0",
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"extraneous": true,
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"inBundle": true,
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"license": "MIT",
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"engines": {
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@ -12,8 +12,7 @@ const xlinkns = "http://www.w3.org/1999/xlink";
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const svgns = "http://www.w3.org/2000/svg";
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import {RADIUS_OPTS, RADIUS_DESC, DotMaker} from './src/components/dots.js';
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import {PALETTES} from './src/components/palettes.js';
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import {ColourNamer} from './src/components/colour_namer.js';
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import {PALETTES, ColourNamer} from './src/components/palettes.js';
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const CELL = 10;
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const MAG = 2;
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@ -125,7 +124,7 @@ function poptimal_svg(params) {
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params.patterns.map((p) => {
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const dots = dm.dots(1 / p.m, p.n, false);
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const dots = dm.dots(1 / p.m, p.n);
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const dots_g = svg.append("g")
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.attr("id", `dots${p.i}`);
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@ -1,39 +0,0 @@
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import { promises } from "fs";
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import * as d3 from "d3-color";
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import * as d3cd from "d3-color-difference";
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class ColourNamer {
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constructor() {
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this.colmap = new Map();
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}
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async load_colours(colourfile) {
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const colourBuff = await promises.readFile(colourfile);
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const colours = colourBuff.toString();
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const seen = new Set();
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colours.split(/\n/).map((l) => {
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const m = l.match(/(\d+)\s+(\d+)\s+(\d+)\s+(.*)/);
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if( m ) {
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const sig = `${m[1]},${m[2]},${m[3]}`;
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if( !seen.has(sig) ) {
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this.colmap.set(m[4], d3.rgb(m[1], m[2], m[3]));
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seen.add(sig);
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}
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}
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});
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}
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colour_to_text(d3color) {
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const diffs = []
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for( const [ name, colour] of this.colmap) {
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diffs.push({name: name, dist: d3cd.differenceCie76(colour, d3color)});
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}
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diffs.sort((a, b) => a.dist - b.dist);
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return diffs[0].name;
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}
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}
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export { ColourNamer}
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@ -18,7 +18,7 @@ const RADIUS_OPTS = [
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const RADIUS_DESC = {
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"const": "of constant size",
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"right": "getting larger towards the right",
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"right": "getting larger towards the left",
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"left": "getting larger towards the left",
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"up": "getting larger towards the top",
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"down": "getting larger towards the bottom",
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@ -38,8 +38,8 @@ function distance(dx, dy) {
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function int_range(v1, v2) {
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const vs = [v1, v2];
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vs.sort((a, b) => a - b);
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const low = Math.floor(vs[0] - 1);
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const high = Math.ceil(vs[1] + 1);
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const low = Math.floor(vs[0]);
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const high = Math.ceil(vs[1]);
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return [...Array(high - low + 1).keys()].map((i) => i + low);
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}
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@ -50,7 +50,7 @@ class DotMaker {
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this.cy = 0.5 * width;
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}
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dots(m, n, clip) {
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dots(m, n) {
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if( m - n === 0 ) {
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return [];
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}
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@ -61,7 +61,7 @@ class DotMaker {
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js.map((j) => {
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const x = (j - m * i) / (m - n);
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const y = m * (x + i);
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if( !clip || (x > 0 && y > 0 && x < this.width && y < this.width) ) {
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if( x > 0 && y > 0 && x < this.width && y < this.width ) {
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ps.push({i:i, j:j, x:x, y:y});
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}
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});
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@ -73,7 +73,7 @@ export async function download_as_png (svg) {
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const opts = {
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fitTo: {
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mode: 'width', // If you need to change the size
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value: 1200,
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value: 400,
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}
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};
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const resvgJS = new resvg.Resvg(svgstr, opts)
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@ -2,7 +2,9 @@
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import * as d3 from "d3-color";
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import shuffle from "lodash.shuffle";
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import random from "random";
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import { promises } from "fs";
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import * as d3cd from "d3-color-difference";
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const PALETTES = new Map([
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[ "random RGB", palette_random ],
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@ -76,6 +78,36 @@ function palette_cmy() {
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return shuffle(cols);
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}
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class ColourNamer {
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constructor() {
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this.colmap = new Map();
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}
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async load_colours(colourfile) {
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const colourBuff = await promises.readFile(colourfile);
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const colours = colourBuff.toString();
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const seen = new Set();
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colours.split(/\n/).map((l) => {
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const m = l.match(/(\d+)\s+(\d+)\s+(\d+)\s+(.*)/);
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if( m ) {
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const sig = `${m[1]},${m[2]},${m[3]}`;
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if( !seen.has(sig) ) {
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this.colmap.set(m[4], d3.rgb(m[1], m[2], m[3]));
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seen.add(sig);
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}
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}
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});
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}
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colour_to_text(d3color) {
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const diffs = []
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for( const [ name, colour] of this.colmap) {
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diffs.push({name: name, dist: d3cd.differenceCie76(colour, d3color)});
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}
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diffs.sort((a, b) => a.dist - b.dist);
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return diffs[0].name;
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}
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}
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export { PALETTES }
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export { PALETTES, ColourNamer }
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21
src/index.md
21
src/index.md
@ -8,7 +8,7 @@ toc: false
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colourful generative patterns using [d3](https://d3js.org/) and [Observable Framework](https://observablehq.com/framework/)
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<p>v1.1.2 | by <a href="https://mikelynch.org">mike lynch</a> | <a href="https://aus.social/@mikelynch">@mikelynch@aus.social</a> | <a href="https://git.tilde.town/bombinans/poptimal">source</a></p>
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<p>v1.1.1 | by <a href="https://mikelynch.org">mike lynch</a> | <a href="https://aus.social/@mikelynch">@mikelynch@aus.social</a> | <a href="https://git.tilde.town/bombinans/poptimal">source</a></p>
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<div class="grid grid-cols-2">
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@ -118,8 +118,8 @@ if( palette_fn ) {
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```js
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const dots1 = dm.dots(1 / m1, n1, false);
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const dots2 = dm.dots(1 / m2, n2, false);
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const dots1 = dm.dots(1 / m1, n1);
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const dots2 = dm.dots(1 / m2, n2);
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```
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@ -134,15 +134,6 @@ const svg = d3.create("svg")
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.attr("viewBox", [ 0, 0, WIDTH, HEIGHT ]);
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svg.append("clipPath")
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.attr("id", "clipRect")
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.append("rect")
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.attr("x", 0)
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.attr("y", 0)
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.attr("width", WIDTH)
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.attr("height", HEIGHT);
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// re transitions: they should only run when updating the palette and
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// grid, not via the sliders
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@ -167,8 +158,7 @@ bg_g.selectAll("rect")
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const dots_g1 = svg.append("g")
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.attr("id", "dots1")
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.attr("clip-path", "url(#clipRect)");
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.attr("id", "dots1");
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dots_g1.selectAll("circle")
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.data(dots1)
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@ -178,8 +168,7 @@ dots_g1.selectAll("circle")
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.attr("fill", fg1);
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const dots_g2 = svg.append("g")
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.attr("id", "dots2")
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.attr("clip-path", "url(#clipRect)");
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.attr("id", "dots2");
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dots_g2.selectAll("circle")
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.data(dots2)
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