Repository: qrohlf/trianglify
Branch: master
Commit: b959ccd656ca
Files: 30
Total size: 173.7 KB
Directory structure:
gitextract_0pzmxqqx/
├── .babelrc
├── .browserslistrc
├── .github/
│ └── workflows/
│ └── build.yml
├── .gitignore
├── .nvmrc
├── CONTRIBUTING.md
├── LICENSE
├── Readme.md
├── changelog.txt
├── examples/
│ ├── basic-web-example.html
│ ├── color-function-example.html
│ ├── custom-points-example.html
│ ├── destsvg-example.html
│ ├── save-as-png.js
│ ├── save-as-svg.js
│ └── transparency-example.html
├── package.json
├── rollup.config.js
└── src/
├── __snapshots__/
│ ├── trianglify.browser.test.js.snap
│ └── trianglify.node.test.js.snap
├── pattern.js
├── trianglify.browser.test.js
├── trianglify.js
├── trianglify.node.test.js
└── utils/
├── colorFunctions.js
├── colorbrewer.js
├── debugRender.js
├── geom.js
├── getScalingRatio.js
└── mulberry32.js
================================================
FILE CONTENTS
================================================
================================================
FILE: .babelrc
================================================
{
"plugins": ["@babel/plugin-proposal-class-properties"],
"presets": [
["@babel/preset-env"]
]
}
================================================
FILE: .browserslistrc
================================================
defaults
not IE 11
not IE_Mob 11
maintained node versions
================================================
FILE: .github/workflows/build.yml
================================================
name: build
on:
push:
branches: [ master ]
pull_request:
branches: [ master ]
types: [synchronize]
jobs:
test:
runs-on: ubuntu-latest
strategy:
matrix:
node-version: [10.x, 12.x, 13.x]
steps:
- uses: actions/checkout@v2
- name: Use Node.js ${{ matrix.node-version }}
uses: actions/setup-node@v1
with:
node-version: ${{ matrix.node-version }}
- run: npm ci # install dependencies in cleanroom
- run: npm run ci # run the "ci" script defined in package.json
================================================
FILE: .gitignore
================================================
node_modules
dist
================================================
FILE: .nvmrc
================================================
v12
================================================
FILE: CONTRIBUTING.md
================================================
# Contributing Guidelines
Pull requests and issues are welcome! For all contributions, please:
1. Read the [Readme](Readme.md)
2. Search the existing [issues](https://github.com/qrohlf/trianglify/issues?q=is%3Aissue+) and [pull requests](https://github.com/qrohlf/trianglify/pulls?q=is%3Apr) to make sure your contribution isn't a duplicate
## Issues
If you're submitting a bug, please include the enivronment (browser/node) and relevant environment version(s) that you have encountered the bug in.
## Pull Requests
*Important: if you are submitting a pull request that does not address an open issue in the issue tracker, it would be a very good idea to create an issue to discuss your proposed changes/additions before working on them.*
1. Fork the repo on GitHub.
2. Install dependencies with `npm install`
2. Create a topic branch and make your changes.
3. Run `npm run ci` to test your code and compile it to trianglify.min.js.
4. Submit a pull request to merge your topic branch into `master`.
================================================
FILE: LICENSE
================================================
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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
================================================
FILE: Readme.md
================================================
# Trianglify
Trianglify is a library that I wrote to generate nice SVG background images like this one:
# Contents
[📦 Getting Trianglify](#-getting-trianglify)
[🏎 Quickstart](#-quickstart)
[⚖️ Licensing](#%EF%B8%8F-licensing)
[📖 API](#-api)
[🎨 Configuration](#-configuration)
# 📦 Getting Trianglify
You can grab Trianglify with npm/yarn (recommended):
```
npm install --save trianglify
```
Include it in your application via the unpkg CDN:
```
<script src='https://unpkg.com/trianglify@^4/dist/trianglify.bundle.js'></script>
```
Or download a .zip from the [**releases page**](https://github.com/qrohlf/trianglify/releases).
# 🏎 Quickstart
**Browsers**
```html
<script src='https://unpkg.com/trianglify@^4/dist/trianglify.bundle.js'></script>
<script>
const pattern = trianglify({
width: window.innerWidth,
height: window.innerHeight
})
document.body.appendChild(pattern.toCanvas())
</script>
```
**Node**
```js
const trianglify = require('trianglify')
const fs = require('fs')
const canvas = trianglify({
width: 1920,
height: 1080
}).toCanvas()
const file = fs.createWriteStream('trianglify.png')
canvas.createPNGStream().pipe(file)
```
You can see the [`examples/`](./examples) folder for more usage examples.
The https://trianglify.io/ GUI is a good place to play around with the various configuration parameters and see their effect on the generated output, live.
# ⚖️ Licensing
The source code of Trianglify is licensed under version 3 of the GNU General Public License ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.html)). This means that any websites, apps, or other projects that include the Trianglify javascript library need to be released under a compatible open-source license. If you are interested in using Trianglify in a closed-source project, please email qr@qrohlf.com to purchase a commercial license.
**However**, it's worth noting that you own the copyright to the output image files which you create using Trianglify, just like you own the copyright to an image created using something like [GIMP](https://www.gimp.org/). If you just want to use an image file that was generated using Trianglify in your project, and do not plan to distribute the Trianglify source code or compiled versions of it, you do not need to worry about the license restrictions described above.
# 📖 API
Trianglify is primarily used by calling the `trianglify` function, which returns a `trianglify.Pattern` object.
```js
// load the library, either via a window global (browsers) or require call (node)
// in es-module environments, you can `import trianglify from 'trianglify'` as well
const trianglify = window.trianglify || require('trianglify')
const options = { height: 400, width: 600 }
const pattern = trianglify(options)
console.log(pattern instanceof trianglify.Pattern) // true
```
## pattern
This object holds the generated geometry and colors, and exposes a number of methods for rendering this geometry to the DOM or a Canvas.
**`pattern.opts`**
Object containing the options used to generate the pattern.
**`pattern.points`**
The pseudo-random point grid used for the pattern geometry, in the following format:
```js
[
[x, y],
[x, y],
[x, y],
// and so on...
]
```
**`pattern.polys`**
The array of colored polygons that make up the pattern, in the following format:
```js
// {x, y} center of the first polygon in the pattern
pattern.polys[0].centroid
// [i, i, i] three indexes into the pattern.points array,
// defining the shape corners
pattern.polys[0].vertexIndices
// Chroma.js color object defining the color of the polygon
pattern.polys[0].color
```
**`pattern.toSVG(destSVG?, svgOpts?)`**
Rendering function for SVG. In browser or browser-like (e.g. JSDOM) environments, this will return a SVGElement DOM node. In node environments, this will return a lightweight node tree structure that can be serialized to a valid SVG string using the `toString()` function.
If an existing svg element is passed as the `destSVG`, this function will render the pattern to the pre-existing element instead of creating a new one.
The `svgOpts` option allows for some svg-specific customizations to the output:
```js
const svgOpts = {
// Include or exclude the xmlns='http://www.w3.org/2000/svg' attribute on
// the root <svg> tag. See https://github.com/qrohlf/trianglify/issues/41
// for additional details on why this is sometimes important
includeNamespace: true,
// Controls how many decimals to round coordinate values to.
// You can set this to -1 to disable rounding. Default is 1.
coordinateDecimals: 1
}
```
**`pattern.toSVGTree(svgOpts?)`**
Alternate rendering function for SVG. Returns a lightweight node tree structure that can be seralized to a valid SVG string using the `toString()` function. In node environments, this is an alias for
`pattern.toSVG()`.
**`pattern.toCanvas(destCanvas?, canvasOpts?)`**
Rendering function for canvas. In browser and browser-like environments, returns a Canvas HTMLElement node. In node environments, this will return a node-canvas object which follows [a superset of the Web Canvas API](https://github.com/Automattic/node-canvas#documentation).
If an existing canvas element is passed as the `destCanvas`, this function will render the pattern to the pre-existing element instead of creating a new one.
To use this in a node.js environment, the optional dependency [node-canvas](https://github.com/Automattic/node-canvas) needs to be installed as a dependency of your project `npm install -save canvas`.
The `canvasOpts` option allows for some canvas-specific customizations to the output:
```js
const canvasOpts = {
// determines how the canvas is rendered on high-DPI (aka "retina") devices.
// - 'auto' will automatically render the canvas at the appropriate scale ratio
// for pixel-perfect display.
// - a numeric value will render the canvas at that specific scale factor
// for example, 2.0 will render it at 2x resolution, wheras 0.5 will render
// at half resolution
// - 'false' will disable scaling, and the canvas will be rendered at the
// exact resolution specified by `width, height`
scaling: 'auto',
// if the canvas is rendered at a different resolution than the {width, height}
// trianglify will apply some inline style attributes to scale it back to
// the requested {width, height} options. Set applyCssScaling to false to
// disable this behavior.
applyCssScaling: true
}
```
# 🎨 Configuration
Trianglify is configured by an options object passed in as the only argument. The following option keys are supported, see below for a complete description of what each option does.
```js
const defaultOptions = {
width: 600,
height: 400,
cellSize: 75,
variance: 0.75,
seed: null,
xColors: 'random',
yColors: 'match',
fill: true,
palette: trianglify.colorbrewer,
colorSpace: 'lab',
colorFunction: trianglify.colorFunctions.interpolateLinear(0.5),
strokeWidth: 0,
points: null
}
```
**`width`**
Integer, defaults to `600`. Specify the width in pixels of the pattern to generate.
**`height`**
Integer, defaults to `400`. Specify the height in pixels of the pattern to generate.
**`cellSize`**
Integer, defaults to `75`. Specify the size in pixels of the mesh used to generate triangles. Larger values will result in coarser patterns, smaller values will result in finer patterns. Note that very small values may dramatically increase the runtime of Trianglify.
**`variance`**
Decimal value between 0 and 1 (inclusive), defaults to `0.75`. Specify the amount of randomness used when generating triangles. You may set this higher than 1, but doing so may result in patterns that include "gaps" at the edges.
**`seed`**
String, defaults to `null`. Seeds the random number generator to create repeatable patterns. When set to null, the RNG will be seeded with random values from the environment. An example usage would be passing in blog post titles as the seed to generate unique but consistient trianglify patterns for every post on a blog site.
**`xColors`**
False, string, or array of CSS-formatted colors, default is `'random'`. Specify the color gradient used on the x axis.
Valid string values are 'random', or the name of a [colorbrewer palette](http://bl.ocks.org/mbostock/5577023) (i.e. 'YlGnBu' or 'RdBu'). When set to 'random', a gradient will be randomly selected from the colorbrewer library.
Valid array values should specify the color stops in any CSS format (i.e. `['#000000', '#4CAFE8', '#FFFFFF']`).
**`yColors`**
False, string or array of CSS-formatted colors, default is `'match'`. When set to 'match' the x-axis color gradient will be used on both axes. Otherwise, accepts the same options as xColors.
**`palette`**
The array of color combinations to pick from when using `random` for the xColors or yColors. See [`src/utils/colorbrewer.js`](./src/utils/colorbrewer.js) for the format of this data.
**`colorSpace`**
String, defaults to `'lab'`. Set the color space used for generating gradients. Supported values are rgb, hsv, hsl, hsi, lab and hcl. See this [blog post](https://vis4.net/blog/posts/avoid-equidistant-hsv-colors/) for some background on why this matters.
**`colorFunction`**
Specify a custom function for coloring triangles, defaults to `null`. Accepts a function to override the standard gradient coloring, which is passed a variety of data about the pattern and each polygon and must return a Chroma.js color object.
See [`examples/color-function-example.html`](./examples/color-function-example.html) and [`src/utils/colorFunctions.js`](./src/utils/colorFunctions.js) for more information about the built-in color functions, and how to write custom color functions.
**`fill`**
Boolean, defaults to `true`. Specifies whether the polygons generated by Trianglify should be filled in.
**`strokeWidth`**
Number, defaults to 0. Specify the width of the strokes used to outline the polygons. This can be used in conjunction with `fill: false` to generate weblike patterns.
**`points`**
Array of points ([x, y]) to triangulate, defaults to null. When not specified an array randomised points is generated filling the space. Points must be within the coordinate space defined by `width` and `height`. See [`examples/custom-points-example.html`](./examples/custom-points-example.html) for a demonstration of how this option can be used to generate circular trianglify patterns.
================================================
FILE: changelog.txt
================================================
v4
- ground-up port to ES2015
- support for node-canvas 2.6
- comprehensive test suite
- support for rendering wireframe patterns (no fill, just stroke)
- colorFunction has a new method signature that allows for more powerful customization
- new built-in colorFunctions: 'sparkle' and 'shadows'
- all-new example code, see examples directory
- all option keys are now camelCase, not snake_case
- antialiasing issues resolved for both SVG and Canvas rendering engines (#87, #30, #76)
- canvas rendering is now retina-ready by default
- removed dependency on seedrandom
- removed dependency on jsdom
v3
- close paths when rendering to canvas (thanks @Allidylls)
- bump a few dependencies for security
================================================
FILE: examples/basic-web-example.html
================================================
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Trianglify Basic Example</title>
<style>
html, body {
margin: 0 0;
padding: 0 0;
text-align: center;
font-size: 0;
background: #000;
}
svg, canvas {
padding-bottom: 30px;
text-align: center;
}
</style>
</head>
<body>
<!-- This is the standalone build of Trianglify. It's easy to drop in to a
project without any need for bundlers or dependency management, but in most
modern web projects you will probably want to use the NPM module instead -->
<script src="../dist/trianglify.bundle.debug.js"></script>
<script>
const pattern = trianglify({
cellSize: 50,
width: window.innerWidth * 0.8,
height: (window.innerHeight - 4 * 30) / 4
})
// Render to SVG
document.body.appendChild(pattern.toSVG())
// Render to Canvas
document.body.appendChild(pattern.toCanvas())
// stroke-only
const strokeOnly = trianglify({
cellSize: 75,
width: window.innerWidth * 0.8,
height: (window.innerHeight - 4 * 30) / 4,
fill: false,
strokeWidth: 1
})
document.body.appendChild(strokeOnly.toSVG())
document.body.appendChild(strokeOnly.toCanvas())
</script>
</body>
</html>
================================================
FILE: examples/color-function-example.html
================================================
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Trianglify Basic Example</title>
<style>
html, body {
margin: 0 0;
padding: 0 0;
text-align: center;
background: #000;
font-family: system-ui;
}
h1 {
font-size: 18px;
}
.demo {
background: #FFF;
display: inline-block;
padding: 20px;
margin: 20px;
}
</style>
</head>
<body>
<!-- This is the standalone build of Trianglify. It's easy to drop in to a
project without any need for bundlers or dependency management, but in most
modern web projects you will probably want to use the NPM module instead -->
<script src="../dist/trianglify.bundle.debug.js"></script>
<script>
const JITTER_FACTOR = 0.2
// utility for building up HTML trees
const h = (tagName, attrs = {}, children = []) => {
const elem = document.createElement(tagName)
attrs && Object.keys(attrs).forEach(
k => attrs[k] !== undefined && elem.setAttribute(k, attrs[k])
)
children && children.forEach(c => elem.appendChild(c))
return elem
}
const addToPage = (pattern, description) => {
document.body.appendChild(h('div', {'class': 'demo'}, [
pattern.toCanvas(),
h('h1', null, [document.createTextNode(description)])
]
))
}
// use the same seed for everything, to allow for easier comparisons
const seed = 'pears'
// Example 1: you can use the built-in color functions to customize the
// color rendering of Trianglify. Here, we use the 'sparkle' color
// function to apply a 10% jitter to the normal color gradients, which
// will yield a glitter-like effect.
const sparkle = trianglify({
seed,
width: 400,
height: 300,
cellSize: 15,
colorFunction: trianglify.colorFunctions.sparkle(0.2)
})
addToPage(sparkle, 'trianglify.colorFunctions.sparkle(0.2)')
// Example 2: you can use the interpolateLinear color function to
// customize how much the x or y gradient dominates the image.
// Higher values for the bias will result in a more pronounced x-gradient,
// while lower values will results in a more pronounced y-gradient
const interpolate = trianglify({
seed,
width: 400,
height: 300,
cellSize: 15,
colorFunction: trianglify.colorFunctions.interpolateLinear(0.1)
})
addToPage(interpolate, 'trianglify.colorFunctions.interpolateLinear(0.1)')
// Example 2: the shadows color function applies a faux-3d effect to the
// pattern. This works best with subtle gradients and solid colors.
const shadows = trianglify({
seed,
width: 400,
height: 300,
cellSize: 15,
colorFunction: trianglify.colorFunctions.shadows()
})
addToPage(shadows, 'trianglify.colorFunctions.shadows()')
// Example 4: you can write your own custom color function to have
// total control over how the polygons are given color values.
//
// Here, we apply the xScale colors as a radial gradient:
// define a custom color function that applies a radial gradient:
const radialGradient = (radius) => ({centroid, xScale}) => {
const distanceFromCenter = Math.sqrt(
Math.pow(200 - centroid.x, 2) + Math.pow(150 - centroid.y, 2)
)
return(xScale(distanceFromCenter / radius))
}
// figure out the gradient radius required to cover the image dimensions:
const gradientRadius = Math.sqrt(
Math.pow(400 / 2, 2) + Math.pow(300 / 2, 2)
)
const radial = trianglify({
seed,
width: 400,
height: 300,
cellSize: 15,
colorFunction: radialGradient(gradientRadius)
})
addToPage(radial, 'custom radial gradient')
</script>
</body>
</html>
================================================
FILE: examples/custom-points-example.html
================================================
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Trianglify custom points example</title>
<style>
html, body {
margin: 0 0;
padding: 0 0;
text-align: center;
font-size: 0;
}
</style>
</head>
<body>
<script src="../dist/trianglify.bundle.debug.js"></script>
<script>
const width = 700
const height = 700
// generate a spiral using polar coordinates
const points = []
const NUM_POINTS = 150
let r = 0
const rStep = width / 2 / NUM_POINTS
let theta = 0
const thetaStep = Math.PI / NUM_POINTS * 18
for (let i = 0; i < NUM_POINTS; i++) {
const x = width / 2 + r * Math.cos(theta)
const y = height / 2 + r * Math.sin(theta)
const point = [x, y]
points.push(point)
r += rStep
theta = (theta + thetaStep) % (2 * Math.PI)
}
// apply trianglify to convert the points to polygons and apply the color
// gradient
var pattern = trianglify({height, width, points})
// use the toCanvas function to render the generated geometry to an HTML5
// canvas element
document.body.appendChild(pattern.toCanvas())
</script>
</body>
</html>
================================================
FILE: examples/destsvg-example.html
================================================
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Trianglify Basic Example</title>
<style>
html, body {
margin: 0 0;
padding: 0 0;
text-align: center;
font-size: 0;
background: #000;
}
svg, canvas {
padding-bottom: 30px;
text-align: center;
}
</style>
</head>
<body>
<svg id="svg-element" />
<!-- This is the standalone build of Trianglify. It's easy to drop in to a
project without any need for bundlers or dependency management, but in most
modern web projects you will probably want to use the NPM module instead -->
<script src="../dist/trianglify.bundle.debug.js"></script>
<script>
const pattern = trianglify({
cellSize: 50,
width: window.innerWidth * 0.8,
height: (window.innerHeight - 4 * 30) / 4
})
const existingSVGElement = document.getElementById('svg-element')
// Render to SVG
pattern.toSVG(existingSVGElement)
</script>
</body>
</html>
================================================
FILE: examples/save-as-png.js
================================================
// Basic command-line example
// Usage: node save-as-png.js
var fs = require('fs')
var trianglify = require('../dist/trianglify.js')
// Generate a pattern and then grab the PNG data uri
const canvas = trianglify({
width: 1920,
height: 1080,
cellSize: Math.random() * 200 + 40,
xColors: 'random',
variance: Math.random()
}).toCanvas()
// Save the buffer to a file. See the node-canvas docs for a full
// list of all the things you can do with this Canvas object:
// https://github.com/Automattic/node-canvas
const file = fs.createWriteStream('trianglify.png')
canvas.createPNGStream().pipe(file)
================================================
FILE: examples/save-as-svg.js
================================================
// Basic command-line example
// Usage: node save-as-svg.js
var fs = require('fs')
var trianglify = require('../dist/trianglify.js')
// Generate a pattern and render to an SVG node tree
const svg = trianglify({
width: 1920,
height: 1080,
cellSize: Math.random() * 200 + 40,
xColors: 'random',
variance: Math.random()
}).toSVG()
// Save the string to a file
fs.writeFileSync('trianglify.svg', svg.toString())
================================================
FILE: examples/transparency-example.html
================================================
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Trianglify transparency example</title>
<style>
html, body {
margin: 0 0;
padding: 0 0;
text-align: center;
font-size: 0;
height: 100%;
width: 100%;
}
#gradient-rotate {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
width: 100vw;
height: 100vh;
}
#trianglify-overlay {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
width: 100vw;
height: 100vh;
}
#color-stop-1 {
-webkit-animation: change-color-1 12s ease-in-out infinite alternate;
animation: change-color-1 12s ease-in-out infinite alternate
}
#color-stop-2 {
-webkit-animation: change-color-2 12s ease-in-out infinite alternate;
animation: change-color-2 12s ease-in-out infinite alternate
}
#color-stop-3 {
-webkit-animation: change-color-3 12s ease-in-out infinite alternate;
animation: change-color-3 12s ease-in-out infinite alternate
}
@keyframes change-color-1 {
0% {
stop-color: #22C8F6
}
25% {
stop-color: #ff0
}
50% {
stop-color: #00ffcb
}
75% {
stop-color: #70ff00
}
}
@keyframes change-color-2 {
0% {
stop-color: #20C498
}
25% {
stop-color: #ff00ad
}
350% {
stop-color: #d480ff
}
75% {
stop-color: #ff9200
}
}
@keyframes change-color-3 {
0% {
stop-color: #189932
}
25% {
stop-color: #c300cb
}
50% {
stop-color: #5600d4
}
75% {
stop-color: #ff46dc
}
}
</style>
</head>
<body>
<svg id="gradient-rotate" preserveAspectRatio="none" viewBox="0 0 500 500">
<defs>
<linearGradient x1="0%" y1="0%" y2="100%" id="a">
<stop id="color-stop-1" stop-color="#22C8F6" offset="0%"></stop>
<stop id="color-stop-2" stop-color="#20C498" offset="65%"></stop>
<stop id="color-stop-3" stop-color="#189932" offset="100%"></stop>
</linearGradient>
</defs>
<path fill="url(#a)" d="M0 0h500v500H0z"></path>
</svg>
<script src="../dist/trianglify.bundle.debug.js"></script>
<script>
// set up the base pattern
const pattern = trianglify({
height: window.innerHeight,
width: window.innerWidth,
xColors: ['rgba(255, 255, 255, 0.1)', 'rgba(255, 255, 255, 1)'],
yColors: 'match',
cellSize: Math.ceil(window.innerWidth / 8)
})
var svg = pattern.toSVG()
svg.id = 'trianglify-overlay'
document.body.appendChild(svg)
</script>
</body>
</html>
================================================
FILE: package.json
================================================
{
"name": "trianglify",
"version": "4.1.1",
"description": "Trianglify is a javascript library for generating colorful triangle meshes that can be used as SVG images and CSS backgrounds.",
"main": "dist/trianglify.js",
"scripts": {
"lint": "standard",
"test": "jest",
"build": "rollup -c",
"dev": "rollup -c -w",
"publish-beta": "npm run build && npm publish --tag next",
"ci": "npm run lint && npm run build && npm run test"
},
"dependencies": {
"chroma-js": "^2.1.0",
"delaunator": "^4.0.1",
"canvas": "^2.6.1"
},
"directories": {
"example": "examples"
},
"repository": {
"type": "git",
"url": "git://github.com/qrohlf/trianglify.git"
},
"keywords": [
"svg",
"canvas",
"visualization",
"pattern",
"lowpoly"
],
"standard": {
"parser": "babel-eslint",
"ignore": [
"dist",
"**/vendor/**"
]
},
"jest": {
"setupFiles": [
"jest-canvas-mock"
]
},
"author": "Quinn Rohlf <qr@qrohlf.com>",
"license": "GPL-3.0",
"bugs": {
"url": "https://github.com/qrohlf/trianglify/issues"
},
"homepage": "https://github.com/qrohlf/trianglify",
"devDependencies": {
"@babel/plugin-proposal-class-properties": "^7.8.3",
"@babel/plugin-syntax-class-properties": "^7.8.3",
"@babel/preset-env": "^7.9.6",
"@rollup/plugin-babel": "^5.0.0",
"@rollup/plugin-commonjs": "^11.1.0",
"@rollup/plugin-node-resolve": "^7.1.3",
"babel-eslint": "^10.1.0",
"jest": "^25.5.4",
"jest-canvas-mock": "^2.2.0",
"rollup": "^2.7.2",
"rollup-plugin-bundle-size": "^1.0.3",
"rollup-plugin-terser": "^5.3.0",
"standard": "^14.3.3"
}
}
================================================
FILE: rollup.config.js
================================================
import commonjs from '@rollup/plugin-commonjs'
import resolve from '@rollup/plugin-node-resolve'
import babel from '@rollup/plugin-babel'
import { terser } from 'rollup-plugin-terser'
import bundleSize from 'rollup-plugin-bundle-size'
import pkg from './package.json'
export default [
{ // build for node & module bundlers
input: 'src/trianglify.js',
external: ['chroma-js', 'delaunator', 'canvas'],
plugins: [babel({ babelHelpers: 'bundled' }), bundleSize()],
output: { file: pkg.main, format: 'cjs' }
},
{
// build minified bundle to be used standalone for browser use
// note: // chroma.js weighs 40k minified, a smaller solution would be nice
input: 'src/trianglify.js',
plugins: [terser({ output: { comments: false } }), resolve({ browser: true }), commonjs(), babel({ babelHelpers: 'bundled' }), bundleSize()],
output: { file: 'dist/trianglify.bundle.js', format: 'umd', name: 'trianglify' }
},
{
// build non-minified bundle to be used for debugging
input: 'src/trianglify.js',
plugins: [resolve({ browser: true }), commonjs(), babel({ babelHelpers: 'bundled' }), bundleSize()],
output: { file: 'dist/trianglify.bundle.debug.js', format: 'umd', name: 'trianglify' }
}
]
================================================
FILE: src/__snapshots__/trianglify.browser.test.js.snap
================================================
// Jest Snapshot v1, https://goo.gl/fbAQLP
exports[`Pattern generation should match snapshot for non-breaking version bumps 1`] = `
<svg
height="400"
width="600"
xmlns="http://www.w3.org/2000/svg"
>
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fill="rgb(230,107,18)"
shape-rendering="crispEdges"
/>
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d="M390.3,294.6L396.5,178.3L342.9,227.4Z"
fill="rgb(239,119,23)"
shape-rendering="crispEdges"
/>
<path
d="M234.9,206.1L285,271.2L342.9,227.4Z"
fill="rgb(248,143,37)"
shape-rendering="crispEdges"
/>
<path
d="M342.9,227.4L285,271.2L356,297.7Z"
fill="rgb(237,120,24)"
shape-rendering="crispEdges"
/>
<path
d="M390.3,294.6L491.3,250.7L396.5,178.3Z"
fill="rgb(227,104,16)"
shape-rendering="crispEdges"
/>
<path
d="M270.7,350.3L316.2,368.3L356,297.7Z"
fill="rgb(207,101,20)"
shape-rendering="crispEdges"
/>
<path
d="M356,297.7L407.8,377.2L390.3,294.6Z"
fill="rgb(206,86,10)"
shape-rendering="crispEdges"
/>
<path
d="M390.3,294.6L505.4,325.1L491.3,250.7Z"
fill="rgb(203,78,4)"
shape-rendering="crispEdges"
/>
<path
d="M388.1,135.7L357.9,136.8L396.5,178.3Z"
fill="rgb(245,154,50)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(247,144,40)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(235,137,40)"
shape-rendering="crispEdges"
/>
<path
d="M316.2,368.3L407.8,377.2L356,297.7Z"
fill="rgb(197,86,13)"
shape-rendering="crispEdges"
/>
<path
d="M285,271.2L270.7,350.3L356,297.7Z"
fill="rgb(225,113,21)"
shape-rendering="crispEdges"
/>
<path
d="M259.2,131.7L234.9,206.1L342.9,227.4Z"
fill="rgb(254,164,51)"
shape-rendering="crispEdges"
/>
<path
d="M285,271.2L202,340.9L270.7,350.3Z"
fill="rgb(219,124,35)"
shape-rendering="crispEdges"
/>
<path
d="M407.8,377.2L505.4,325.1L390.3,294.6Z"
fill="rgb(190,72,4)"
shape-rendering="crispEdges"
/>
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d="M560.9,258.4L499.8,175.6L491.3,250.7Z"
fill="rgb(200,92,16)"
shape-rendering="crispEdges"
/>
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fill="rgb(225,113,22)"
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/>
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fill="rgb(249,156,49)"
shape-rendering="crispEdges"
/>
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fill="rgb(255,182,87)"
shape-rendering="crispEdges"
/>
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fill="rgb(252,163,52)"
shape-rendering="crispEdges"
/>
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fill="rgb(255,181,69)"
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/>
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fill="rgb(175,94,24)"
shape-rendering="crispEdges"
/>
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fill="rgb(173,80,16)"
shape-rendering="crispEdges"
/>
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fill="rgb(160,57,5)"
shape-rendering="crispEdges"
/>
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fill="rgb(163,69,12)"
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/>
<path
d="M178.4,252.9L202,340.9L285,271.2Z"
fill="rgb(235,143,46)"
shape-rendering="crispEdges"
/>
<path
d="M270.7,350.3L235,443.7L316.2,368.3Z"
fill="rgb(183,103,29)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(165,59,4)"
shape-rendering="crispEdges"
/>
<path
d="M505.4,325.1L560.9,258.4L491.3,250.7Z"
fill="rgb(187,73,6)"
shape-rendering="crispEdges"
/>
<path
d="M108.6,206.2L178.4,252.9L207.1,227.9Z"
fill="rgb(252,176,83)"
shape-rendering="crispEdges"
/>
<path
d="M207.1,227.9L178.4,252.9L285,271.2Z"
fill="rgb(246,155,51)"
shape-rendering="crispEdges"
/>
<path
d="M438.6,425.2L495.3,411.4L407.8,377.2Z"
fill="rgb(152,57,7)"
shape-rendering="crispEdges"
/>
<path
d="M407.6,22.7L344.6,57.3L388.1,135.7Z"
fill="rgb(250,175,97)"
shape-rendering="crispEdges"
/>
<path
d="M388.1,135.7L344.6,57.3L357.9,136.8Z"
fill="rgb(250,171,80)"
shape-rendering="crispEdges"
/>
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fill="rgb(255,213,115)"
shape-rendering="crispEdges"
/>
<path
d="M259.2,131.7L196.4,142.7L234.9,206.1Z"
fill="rgb(254,190,74)"
shape-rendering="crispEdges"
/>
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fill="rgb(204,131,57)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(227,139,52)"
shape-rendering="crispEdges"
/>
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d="M134.1,328.3L209.2,402.4L202,340.9Z"
fill="rgb(202,131,60)"
shape-rendering="crispEdges"
/>
<path
d="M202,340.9L209.2,402.4L270.7,350.3Z"
fill="rgb(196,120,40)"
shape-rendering="crispEdges"
/>
<path
d="M495.3,411.4L564.8,355.1L505.4,325.1Z"
fill="rgb(147,50,5)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(191,94,19)"
shape-rendering="crispEdges"
/>
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fill="rgb(167,75,14)"
shape-rendering="crispEdges"
/>
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d="M240.9,512.2L358.9,485.8L333.1,435.1Z"
fill="rgb(174,90,22)"
shape-rendering="crispEdges"
/>
<path
d="M333.1,435.1L358.9,485.8L438.6,425.2Z"
fill="rgb(166,73,14)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(142,51,6)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(177,110,38)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(217,151,93)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(232,154,79)"
shape-rendering="crispEdges"
/>
<path
d="M358.9,485.8L391.2,495.1L438.6,425.2Z"
fill="rgb(162,68,12)"
shape-rendering="crispEdges"
/>
<path
d="M473.1,47.6L407.6,22.7L388.1,135.7Z"
fill="rgb(242,166,94)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(237,157,80)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(229,147,67)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(177,116,46)"
shape-rendering="crispEdges"
/>
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/>
<path
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shape-rendering="crispEdges"
/>
<path
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fill="rgb(250,172,89)"
shape-rendering="crispEdges"
/>
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/>
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<path
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fill="rgb(139,50,6)"
shape-rendering="crispEdges"
/>
<path
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<path
d="M162.8,515.4L235,443.7L209.2,402.4Z"
fill="rgb(177,118,50)"
shape-rendering="crispEdges"
/>
<path
d="M235,443.7L240.9,512.2L333.1,435.1Z"
fill="rgb(176,101,30)"
shape-rendering="crispEdges"
/>
<path
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fill="rgb(172,85,19)"
shape-rendering="crispEdges"
/>
<path
d="M273,-16.7L201.9,26.9L273.5,26.7Z"
fill="rgb(255,217,145)"
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/>
<path
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<path
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fill="rgb(255,221,134)"
shape-rendering="crispEdges"
/>
<path
d="M54.7,300.1L9.7,344.5L89.3,429.4Z"
fill="rgb(206,148,100)"
shape-rendering="crispEdges"
/>
<path
d="M564.2,521.7L638.2,509.9L566.2,407.4Z"
fill="rgb(105,38,6)"
shape-rendering="crispEdges"
/>
<path
d="M689.2,351.7L702,425.1L726.1,259.6Z"
fill="rgb(129,46,6)"
shape-rendering="crispEdges"
/>
<path
d="M241.2,-79.6L139.9,-29.7L164.3,-3.1Z"
fill="rgb(255,234,174)"
shape-rendering="crispEdges"
/>
<path
d="M45.4,57.6L18.5,119.3L139.1,109.6Z"
fill="rgb(255,238,170)"
shape-rendering="crispEdges"
/>
<path
d="M-9.7,287.1L9.7,344.5L54.7,300.1Z"
fill="rgb(234,163,112)"
shape-rendering="crispEdges"
/>
<path
d="M638.2,509.9L702,425.1L620.1,400.3Z"
fill="rgb(102,37,6)"
shape-rendering="crispEdges"
/>
<path
d="M9.7,344.5L47.6,452.4L89.3,429.4Z"
fill="rgb(181,139,98)"
shape-rendering="crispEdges"
/>
<path
d="M45.4,57.6L139.1,109.6L106.2,41.2Z"
fill="rgb(255,240,173)"
shape-rendering="crispEdges"
/>
<path
d="M513.2,-124.5L439.5,-114.5L514.5,-43.8Z"
fill="rgb(226,159,116)"
shape-rendering="crispEdges"
/>
<path
d="M514.5,-43.8L439.5,-114.5L386.6,-31Z"
fill="rgb(241,167,119)"
shape-rendering="crispEdges"
/>
<path
d="M311.2,-75.7L178,-113.2L241.2,-79.6Z"
fill="rgb(255,220,151)"
shape-rendering="crispEdges"
/>
<path
d="M11.8,176.7L-9.7,287.1L54.7,300.1Z"
fill="rgb(253,182,121)"
shape-rendering="crispEdges"
/>
<path
d="M-45.6,183.3L-9.7,287.1L11.8,176.7Z"
fill="rgb(255,198,135)"
shape-rendering="crispEdges"
/>
<path
d="M18,-13.9L45.4,57.6L106.2,41.2Z"
fill="rgb(255,250,202)"
shape-rendering="crispEdges"
/>
<path
d="M726.1,259.6L705,57.6L686.9,119.5Z"
fill="rgb(176,115,44)"
shape-rendering="crispEdges"
/>
<path
d="M686.9,119.5L705,57.6L630.4,103.1Z"
fill="rgb(179,129,74)"
shape-rendering="crispEdges"
/>
<path
d="M536.4,-126.6L513.2,-124.5L514.5,-43.8Z"
fill="rgb(214,153,113)"
shape-rendering="crispEdges"
/>
<path
d="M536.4,-126.6L514.5,-43.8L570,-27.1Z"
fill="rgb(207,150,113)"
shape-rendering="crispEdges"
/>
<path
d="M688.9,-34L642.4,-47.5L609.7,27.6Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M241.2,-79.6L178,-113.2L139.9,-29.7Z"
fill="rgb(255,233,172)"
shape-rendering="crispEdges"
/>
<path
d="M139.9,-29.7L18,-13.9L106.2,41.2Z"
fill="rgb(255,249,205)"
shape-rendering="crispEdges"
/>
<path
d="M439.5,-114.5L178,-113.2L311.2,-75.7Z"
fill="rgb(255,201,137)"
shape-rendering="crispEdges"
/>
<path
d="M131,-124.4L178,-113.2L439.5,-114.5Z"
fill="rgb(255,218,150)"
shape-rendering="crispEdges"
/>
<path
d="M657.2,-85.5L536.4,-126.6L570,-27.1Z"
fill="rgb(188,143,111)"
shape-rendering="crispEdges"
/>
<path
d="M513.2,-124.5L131,-124.4L439.5,-114.5Z"
fill="rgb(255,188,129)"
shape-rendering="crispEdges"
/>
<path
d="M638.2,509.9L725.2,482.4L702,425.1Z"
fill="rgb(102,37,6)"
shape-rendering="crispEdges"
/>
<path
d="M702,425.1L725.2,482.4L726.1,259.6Z"
fill="rgb(107,39,6)"
shape-rendering="crispEdges"
/>
<path
d="M-62.5,104.1L-45.6,183.3L18.5,119.3Z"
fill="rgb(255,230,165)"
shape-rendering="crispEdges"
/>
<path
d="M18.5,119.3L-45.6,183.3L11.8,176.7Z"
fill="rgb(255,221,152)"
shape-rendering="crispEdges"
/>
<path
d="M-62.4,329L-33.1,415.8L9.7,344.5Z"
fill="rgb(205,149,112)"
shape-rendering="crispEdges"
/>
<path
d="M-62.4,329L9.7,344.5L-9.7,287.1Z"
fill="rgb(229,161,116)"
shape-rendering="crispEdges"
/>
<path
d="M9.7,344.5L-33.1,415.8L47.6,452.4Z"
fill="rgb(182,140,108)"
shape-rendering="crispEdges"
/>
<path
d="M47.6,452.4L22.8,527.3L111.9,519.8Z"
fill="rgb(181,138,95)"
shape-rendering="crispEdges"
/>
<path
d="M705,57.6L688.9,-34L609.7,27.6Z"
fill="rgb(182,140,104)"
shape-rendering="crispEdges"
/>
<path
d="M642.4,-47.5L657.2,-85.5L570,-27.1Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M-92.6,283L-62.4,329L-9.7,287.1Z"
fill="rgb(241,167,118)"
shape-rendering="crispEdges"
/>
<path
d="M-41.6,508.7L22.8,527.3L47.6,452.4Z"
fill="rgb(182,140,108)"
shape-rendering="crispEdges"
/>
<path
d="M111.9,519.8L22.8,527.3L564.2,521.7Z"
fill="rgb(176,111,39)"
shape-rendering="crispEdges"
/>
<path
d="M39,-89.3L18,-13.9L139.9,-29.7Z"
fill="rgb(255,251,211)"
shape-rendering="crispEdges"
/>
<path
d="M-51.2,56.1L-62.5,104.1L18.5,119.3Z"
fill="rgb(255,242,190)"
shape-rendering="crispEdges"
/>
<path
d="M688.9,-34L657.2,-85.5L642.4,-47.5Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M536.4,-126.6L131,-124.4L513.2,-124.5Z"
fill="rgb(252,180,125)"
shape-rendering="crispEdges"
/>
<path
d="M178,-113.2L131,-124.4L139.9,-29.7Z"
fill="rgb(255,241,187)"
shape-rendering="crispEdges"
/>
<path
d="M-51.2,56.1L18.5,119.3L45.4,57.6Z"
fill="rgb(255,245,195)"
shape-rendering="crispEdges"
/>
<path
d="M-45.6,183.3L-92.6,283L-9.7,287.1Z"
fill="rgb(255,184,127)"
shape-rendering="crispEdges"
/>
<path
d="M-89.1,432L-41.6,508.7L-33.1,415.8Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M-103.5,176L-92.6,283L-45.6,183.3Z"
fill="rgb(255,198,135)"
shape-rendering="crispEdges"
/>
<path
d="M18,-13.9L-51.2,56.1L45.4,57.6Z"
fill="rgb(255,252,214)"
shape-rendering="crispEdges"
/>
<path
d="M131,-124.4L39,-89.3L139.9,-29.7Z"
fill="rgb(255,247,200)"
shape-rendering="crispEdges"
/>
<path
d="M18,-13.9L-27.6,-18L-51.2,56.1Z"
fill="rgb(255,254,226)"
shape-rendering="crispEdges"
/>
<path
d="M-123.3,147.5L-103.5,176L-62.5,104.1Z"
fill="rgb(255,227,160)"
shape-rendering="crispEdges"
/>
<path
d="M-62.5,104.1L-103.5,176L-45.6,183.3Z"
fill="rgb(255,223,154)"
shape-rendering="crispEdges"
/>
<path
d="M-33.1,415.8L-41.6,508.7L47.6,452.4Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M-89.1,432L-33.1,415.8L-62.4,329Z"
fill="rgb(187,143,111)"
shape-rendering="crispEdges"
/>
<path
d="M39,-89.3L-27.6,-18L18,-13.9Z"
fill="rgb(255,254,226)"
shape-rendering="crispEdges"
/>
<path
d="M-118.4,41.5L-123.3,147.5L-62.5,104.1Z"
fill="rgb(255,241,188)"
shape-rendering="crispEdges"
/>
<path
d="M-133.7,335.4L-62.4,329L-92.6,283Z"
fill="rgb(232,162,117)"
shape-rendering="crispEdges"
/>
<path
d="M-133.7,335.4L-89.1,432L-62.4,329Z"
fill="rgb(203,149,112)"
shape-rendering="crispEdges"
/>
<path
d="M-118.4,41.5L-62.5,104.1L-51.2,56.1Z"
fill="rgb(255,247,201)"
shape-rendering="crispEdges"
/>
<path
d="M-103.5,176L-133.7,335.4L-92.6,283Z"
fill="rgb(251,179,125)"
shape-rendering="crispEdges"
/>
<path
d="M-123.3,147.5L-133.7,335.4L-103.5,176Z"
fill="rgb(255,196,134)"
shape-rendering="crispEdges"
/>
<path
d="M705,57.6L708.8,-126.1L688.9,-34Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M688.9,-34L708.8,-126.1L657.2,-85.5Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M657.2,-85.5L708.8,-126.1L536.4,-126.6Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M726.1,259.6L708.8,-126.1L705,57.6Z"
fill="rgb(180,135,86)"
shape-rendering="crispEdges"
/>
<path
d="M39,-89.3L-16.6,-108.5L-27.6,-18Z"
fill="rgb(255,255,229)"
shape-rendering="crispEdges"
/>
<path
d="M-115.8,-25.3L-118.4,41.5L-51.2,56.1Z"
fill="rgb(255,253,219)"
shape-rendering="crispEdges"
/>
<path
d="M131,-124.4L-16.6,-108.5L39,-89.3Z"
fill="rgb(255,252,215)"
shape-rendering="crispEdges"
/>
<path
d="M-115.8,-25.3L-51.2,56.1L-27.6,-18Z"
fill="rgb(255,255,227)"
shape-rendering="crispEdges"
/>
<path
d="M-123.3,147.5L-115.8,-25.3L-133.7,335.4Z"
fill="rgb(255,224,155)"
shape-rendering="crispEdges"
/>
<path
d="M-133.7,335.4L-115.1,485.4L-89.1,432Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M-89.1,432L-115.1,485.4L-41.6,508.7Z"
fill="rgb(183,141,110)"
shape-rendering="crispEdges"
/>
<path
d="M-109,-104.7L-115.8,-25.3L-27.6,-18Z"
fill="rgb(255,255,229)"
shape-rendering="crispEdges"
/>
<path
d="M-118.4,41.5L-115.8,-25.3L-123.3,147.5Z"
fill="rgb(255,250,207)"
shape-rendering="crispEdges"
/>
<path
d="M131,-124.4L-109,-104.7L-16.6,-108.5Z"
fill="rgb(255,255,228)"
shape-rendering="crispEdges"
/>
<path
d="M-16.6,-108.5L-109,-104.7L-27.6,-18Z"
fill="rgb(255,255,229)"
shape-rendering="crispEdges"
/>
</svg>
`;
exports[`Pattern outputs in browser environment #toSVG supports rendering to the destSVG target 1`] = `
<svg
height="400"
width="600"
xmlns="http://www.w3.org/2000/svg"
>
<path
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fill="rgb(253,166,96)"
shape-rendering="crispEdges"
/>
<path
d="M169.5,190.6L240.6,249.3L271.8,183.1Z"
fill="rgb(253,155,81)"
shape-rendering="crispEdges"
/>
<path
d="M241.1,145.4L209.1,116.4L169.5,190.6Z"
fill="rgb(253,178,113)"
shape-rendering="crispEdges"
/>
<path
d="M169.5,190.6L183.4,264.3L240.6,249.3Z"
fill="rgb(251,152,82)"
shape-rendering="crispEdges"
/>
<path
d="M337.8,257.9L326.2,179.1L271.8,183.1Z"
fill="rgb(251,136,55)"
shape-rendering="crispEdges"
/>
<path
d="M271.8,183.1L345.4,136L241.1,145.4Z"
fill="rgb(254,159,86)"
shape-rendering="crispEdges"
/>
<path
d="M255,28.1L204.5,67.8L209.1,116.4Z"
fill="rgb(255,198,148)"
shape-rendering="crispEdges"
/>
<path
d="M209.1,116.4L126.4,144.1L169.5,190.6Z"
fill="rgb(254,187,128)"
shape-rendering="crispEdges"
/>
<path
d="M169.5,190.6L110.3,205.9L183.4,264.3Z"
fill="rgb(254,167,103)"
shape-rendering="crispEdges"
/>
<path
d="M126.4,144.1L110.3,205.9L169.5,190.6Z"
fill="rgb(255,183,125)"
shape-rendering="crispEdges"
/>
<path
d="M255,28.1L209.1,116.4L241.1,145.4Z"
fill="rgb(254,190,133)"
shape-rendering="crispEdges"
/>
<path
d="M209.1,116.4L204.5,67.8L126.4,144.1Z"
fill="rgb(254,198,146)"
shape-rendering="crispEdges"
/>
<path
d="M279,335.3L337.8,257.9L240.6,249.3Z"
fill="rgb(240,117,42)"
shape-rendering="crispEdges"
/>
<path
d="M240.6,249.3L337.8,257.9L271.8,183.1Z"
fill="rgb(250,134,55)"
shape-rendering="crispEdges"
/>
<path
d="M414.9,178.7L345.4,136L326.2,179.1Z"
fill="rgb(249,139,63)"
shape-rendering="crispEdges"
/>
<path
d="M326.2,179.1L345.4,136L271.8,183.1Z"
fill="rgb(253,149,73)"
shape-rendering="crispEdges"
/>
<path
d="M110.3,205.9L104.2,278.7L183.4,264.3Z"
fill="rgb(253,161,100)"
shape-rendering="crispEdges"
/>
<path
d="M183.4,264.3L279,335.3L240.6,249.3Z"
fill="rgb(241,128,59)"
shape-rendering="crispEdges"
/>
<path
d="M167.5,358L279,335.3L183.4,264.3Z"
fill="rgb(228,125,64)"
shape-rendering="crispEdges"
/>
<path
d="M43.8,141.2L63.8,217.6L110.3,205.9Z"
fill="rgb(255,190,139)"
shape-rendering="crispEdges"
/>
<path
d="M110.3,205.9L63.8,217.6L104.2,278.7Z"
fill="rgb(255,172,116)"
shape-rendering="crispEdges"
/>
<path
d="M342.8,66.2L255,28.1L241.1,145.4Z"
fill="rgb(255,184,127)"
shape-rendering="crispEdges"
/>
<path
d="M104.2,278.7L167.5,358L183.4,264.3Z"
fill="rgb(240,143,86)"
shape-rendering="crispEdges"
/>
<path
d="M345.4,136L342.8,66.2L241.1,145.4Z"
fill="rgb(255,167,101)"
shape-rendering="crispEdges"
/>
<path
d="M97.6,55.4L43.8,141.2L126.4,144.1Z"
fill="rgb(255,212,172)"
shape-rendering="crispEdges"
/>
<path
d="M126.4,144.1L43.8,141.2L110.3,205.9Z"
fill="rgb(255,195,144)"
shape-rendering="crispEdges"
/>
<path
d="M97.6,55.4L126.4,144.1L204.5,67.8Z"
fill="rgb(253,211,169)"
shape-rendering="crispEdges"
/>
<path
d="M180.5,-3.4L97.6,55.4L204.5,67.8Z"
fill="rgb(255,218,183)"
shape-rendering="crispEdges"
/>
<path
d="M439.7,261.8L414.9,178.7L337.8,257.9Z"
fill="rgb(240,107,25)"
shape-rendering="crispEdges"
/>
<path
d="M337.8,257.9L414.9,178.7L326.2,179.1Z"
fill="rgb(248,125,43)"
shape-rendering="crispEdges"
/>
<path
d="M345.4,136L409.6,105L342.8,66.2Z"
fill="rgb(252,159,95)"
shape-rendering="crispEdges"
/>
<path
d="M255,28.1L180.5,-3.4L204.5,67.8Z"
fill="rgb(255,207,166)"
shape-rendering="crispEdges"
/>
<path
d="M342.8,66.2L262.8,-4.9L255,28.1Z"
fill="rgb(255,192,143)"
shape-rendering="crispEdges"
/>
<path
d="M255,28.1L262.8,-4.9L180.5,-3.4Z"
fill="rgb(255,207,166)"
shape-rendering="crispEdges"
/>
<path
d="M414.9,178.7L409.6,105L345.4,136Z"
fill="rgb(247,141,71)"
shape-rendering="crispEdges"
/>
<path
d="M342.8,66.2L347.7,-31.8L262.8,-4.9Z"
fill="rgb(255,188,140)"
shape-rendering="crispEdges"
/>
<path
d="M98.3,373.8L181.5,397.3L167.5,358Z"
fill="rgb(202,127,82)"
shape-rendering="crispEdges"
/>
<path
d="M167.5,358L264.1,402.7L279,335.3Z"
fill="rgb(204,109,52)"
shape-rendering="crispEdges"
/>
<path
d="M98.3,373.8L167.5,358L104.2,278.7Z"
fill="rgb(222,138,91)"
shape-rendering="crispEdges"
/>
<path
d="M264.1,402.7L359,353.3L279,335.3Z"
fill="rgb(203,95,32)"
shape-rendering="crispEdges"
/>
<path
d="M279,335.3L359,353.3L337.8,257.9Z"
fill="rgb(225,99,26)"
shape-rendering="crispEdges"
/>
<path
d="M181.5,397.3L264.1,402.7L167.5,358Z"
fill="rgb(196,113,62)"
shape-rendering="crispEdges"
/>
<path
d="M409.6,105L385.1,50.1L342.8,66.2Z"
fill="rgb(253,163,105)"
shape-rendering="crispEdges"
/>
<path
d="M15.9,285.3L104.2,278.7L63.8,217.6Z"
fill="rgb(254,167,117)"
shape-rendering="crispEdges"
/>
<path
d="M30.6,329.6L98.3,373.8L104.2,278.7Z"
fill="rgb(229,147,105)"
shape-rendering="crispEdges"
/>
<path
d="M180.5,-3.4L139.8,-13L97.6,55.4Z"
fill="rgb(255,226,198)"
shape-rendering="crispEdges"
/>
<path
d="M97.6,55.4L11.8,55L43.8,141.2Z"
fill="rgb(254,225,196)"
shape-rendering="crispEdges"
/>
<path
d="M134.1,-95.9L139.8,-13L180.5,-3.4Z"
fill="rgb(255,226,198)"
shape-rendering="crispEdges"
/>
<path
d="M-12.5,248.2L15.9,285.3L63.8,217.6Z"
fill="rgb(255,174,126)"
shape-rendering="crispEdges"
/>
<path
d="M429.7,337L439.7,261.8L337.8,257.9Z"
fill="rgb(228,88,9)"
shape-rendering="crispEdges"
/>
<path
d="M414.9,178.7L477.2,99.5L409.6,105Z"
fill="rgb(241,137,73)"
shape-rendering="crispEdges"
/>
<path
d="M15.9,285.3L30.6,329.6L104.2,278.7Z"
fill="rgb(246,157,113)"
shape-rendering="crispEdges"
/>
<path
d="M439.7,261.8L460.9,188.3L414.9,178.7Z"
fill="rgb(236,107,31)"
shape-rendering="crispEdges"
/>
<path
d="M409.6,105L489,56.6L385.1,50.1Z"
fill="rgb(246,154,101)"
shape-rendering="crispEdges"
/>
<path
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shape-rendering="crispEdges"
/>
<path
d="M720,99.7L718.2,67.3L634.8,102.7Z"
fill="rgb(193,124,84)"
shape-rendering="crispEdges"
/>
<path
d="M731.2,194.2L718.2,67.3L720,99.7Z"
fill="rgb(191,115,70)"
shape-rendering="crispEdges"
/>
<path
d="M685.5,355L734.1,257.3L634.5,255.6Z"
fill="rgb(173,59,5)"
shape-rendering="crispEdges"
/>
<path
d="M557,510.1L655.4,489L567.1,446.7Z"
fill="rgb(129,40,4)"
shape-rendering="crispEdges"
/>
<path
d="M685.5,355L723.9,406.8L734.1,257.3Z"
fill="rgb(151,48,4)"
shape-rendering="crispEdges"
/>
<path
d="M731.2,194.2L714.1,-16.8L718.2,67.3Z"
fill="rgb(194,126,88)"
shape-rendering="crispEdges"
/>
<path
d="M718.2,67.3L714.1,-16.8L623.3,33.9Z"
fill="rgb(197,136,106)"
shape-rendering="crispEdges"
/>
<path
d="M655.4,489L723.9,406.8L633.5,409.3Z"
fill="rgb(127,39,4)"
shape-rendering="crispEdges"
/>
<path
d="M714.1,-16.8L693,-95.3L633.7,-73.7Z"
fill="rgb(198,139,113)"
shape-rendering="crispEdges"
/>
<path
d="M633.7,-73.7L693,-95.3L583.8,-95.9Z"
fill="rgb(198,139,113)"
shape-rendering="crispEdges"
/>
<path
d="M583.8,-95.9L693,-95.3L499.2,-107.7Z"
fill="rgb(200,141,114)"
shape-rendering="crispEdges"
/>
<path
d="M557,510.1L702.1,509.8L655.4,489Z"
fill="rgb(127,39,4)"
shape-rendering="crispEdges"
/>
<path
d="M655.4,489L702.1,509.8L723.9,406.8Z"
fill="rgb(127,39,4)"
shape-rendering="crispEdges"
/>
<path
d="M506.5,518L702.1,509.8L557,510.1Z"
fill="rgb(130,40,4)"
shape-rendering="crispEdges"
/>
</svg>
`;
exports[`Pattern outputs in browser environment #toSVGTree serializes to an SVG string 1`] = `"<svg xmlns='http://www.w3.org/2000/svg' width='600' height='400'><path d='M328.5,188.8L353.6,140.5L281.7,122.4Z' fill='rgb(254,152,65)' shape-rendering='crispEdges'></path><path d='M281.7,122.4L250.2,188.1L328.5,188.8Z' fill='rgb(254,157,67)' shape-rendering='crispEdges'></path><path d='M353.6,140.5L316.1,62.5L281.7,122.4Z' fill='rgb(255,171,83)' shape-rendering='crispEdges'></path><path d='M419.7,172.6L416.5,122.8L353.6,140.5Z' fill='rgb(252,130,58)' shape-rendering='crispEdges'></path><path d='M353.6,140.5L416.5,122.8L316.1,62.5Z' fill='rgb(255,155,77)' shape-rendering='crispEdges'></path><path d='M328.5,188.8L419.7,172.6L353.6,140.5Z' fill='rgb(254,129,57)' shape-rendering='crispEdges'></path><path d='M250.2,188.1L329.1,259.4L328.5,188.8Z' fill='rgb(253,133,57)' shape-rendering='crispEdges'></path><path d='M328.5,188.8L329.1,259.4L419.7,172.6Z' fill='rgb(253,114,51)' 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shape-rendering='crispEdges'></path><path d='M-135.4,-109.1L-123.7,487.2L-125.3,357.8Z' fill='rgb(255,175,122)' shape-rendering='crispEdges'></path></svg>"`;
================================================
FILE: src/__snapshots__/trianglify.node.test.js.snap
================================================
// Jest Snapshot v1, https://goo.gl/fbAQLP
exports[`Pattern generation should match snapshot for non-breaking version bumps 1`] = `"<svg xmlns='http://www.w3.org/2000/svg' width='600' height='400'><path d='M342.9,227.4L356,297.7L390.3,294.6Z' fill='rgb(230,107,18)' shape-rendering='crispEdges'></path><path d='M390.3,294.6L396.5,178.3L342.9,227.4Z' fill='rgb(239,119,23)' shape-rendering='crispEdges'></path><path d='M234.9,206.1L285,271.2L342.9,227.4Z' fill='rgb(248,143,37)' shape-rendering='crispEdges'></path><path d='M342.9,227.4L285,271.2L356,297.7Z' fill='rgb(237,120,24)' shape-rendering='crispEdges'></path><path d='M390.3,294.6L491.3,250.7L396.5,178.3Z' fill='rgb(227,104,16)' shape-rendering='crispEdges'></path><path d='M270.7,350.3L316.2,368.3L356,297.7Z' fill='rgb(207,101,20)' shape-rendering='crispEdges'></path><path d='M356,297.7L407.8,377.2L390.3,294.6Z' fill='rgb(206,86,10)' shape-rendering='crispEdges'></path><path d='M390.3,294.6L505.4,325.1L491.3,250.7Z' fill='rgb(203,78,4)' shape-rendering='crispEdges'></path><path 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fill='rgb(255,196,134)' shape-rendering='crispEdges'></path><path d='M705,57.6L708.8,-126.1L688.9,-34Z' fill='rgb(183,141,110)' shape-rendering='crispEdges'></path><path d='M688.9,-34L708.8,-126.1L657.2,-85.5Z' fill='rgb(183,141,110)' shape-rendering='crispEdges'></path><path d='M657.2,-85.5L708.8,-126.1L536.4,-126.6Z' fill='rgb(183,141,110)' shape-rendering='crispEdges'></path><path d='M726.1,259.6L708.8,-126.1L705,57.6Z' fill='rgb(180,135,86)' shape-rendering='crispEdges'></path><path d='M39,-89.3L-16.6,-108.5L-27.6,-18Z' fill='rgb(255,255,229)' shape-rendering='crispEdges'></path><path d='M-115.8,-25.3L-118.4,41.5L-51.2,56.1Z' fill='rgb(255,253,219)' shape-rendering='crispEdges'></path><path d='M131,-124.4L-16.6,-108.5L39,-89.3Z' fill='rgb(255,252,215)' shape-rendering='crispEdges'></path><path d='M-115.8,-25.3L-51.2,56.1L-27.6,-18Z' fill='rgb(255,255,227)' shape-rendering='crispEdges'></path><path d='M-123.3,147.5L-115.8,-25.3L-133.7,335.4Z' fill='rgb(255,224,155)' shape-rendering='crispEdges'></path><path d='M-133.7,335.4L-115.1,485.4L-89.1,432Z' fill='rgb(183,141,110)' shape-rendering='crispEdges'></path><path d='M-89.1,432L-115.1,485.4L-41.6,508.7Z' fill='rgb(183,141,110)' shape-rendering='crispEdges'></path><path d='M-109,-104.7L-115.8,-25.3L-27.6,-18Z' fill='rgb(255,255,229)' shape-rendering='crispEdges'></path><path d='M-118.4,41.5L-115.8,-25.3L-123.3,147.5Z' fill='rgb(255,250,207)' shape-rendering='crispEdges'></path><path d='M131,-124.4L-109,-104.7L-16.6,-108.5Z' fill='rgb(255,255,228)' shape-rendering='crispEdges'></path><path d='M-16.6,-108.5L-109,-104.7L-27.6,-18Z' fill='rgb(255,255,229)' shape-rendering='crispEdges'></path></svg>"`;
================================================
FILE: src/pattern.js
================================================
import { createCanvas } from 'canvas' // this is a simple shim in browsers
import getScalingRatio from './utils/getScalingRatio'
const isBrowser = (typeof window !== 'undefined' && typeof document !== 'undefined')
const doc = isBrowser && document
// utility for building up SVG node trees with the DOM API
const sDOM = (tagName, attrs = {}, children, existingRoot) => {
const elem = existingRoot || doc.createElementNS('http://www.w3.org/2000/svg', tagName)
Object.keys(attrs).forEach(
k => attrs[k] !== undefined && elem.setAttribute(k, attrs[k])
)
children && children.forEach(c => elem.appendChild(c))
return elem
}
// serialize attrs object to XML attributes. Assumes everything is already
// escaped (safe input).
const serializeAttrs = attrs => (
Object.entries(attrs)
.filter(([_, v]) => v !== undefined)
.map(([k, v]) => `${k}='${v}'`)
.join(' ')
)
// minimal XML-tree builder for use in Node
const sNode = (tagName, attrs = {}, children) => ({
tagName,
attrs,
children,
toString: () => `<${tagName} ${serializeAttrs(attrs)}>${children ? children.join('') : ''}</${tagName}>`
})
export default class Pattern {
constructor (points, polys, opts) {
this.points = points
this.polys = polys
this.opts = opts
}
_toSVG = (serializer, destSVG, _svgOpts = {}) => {
const s = serializer
const defaultSVGOptions = { includeNamespace: true, coordinateDecimals: 1 }
const svgOpts = { ...defaultSVGOptions, ..._svgOpts }
const { points, opts, polys } = this
const { width, height } = opts
// only round points if the coordinateDecimals option is non-negative
// set coordinateDecimals to -1 to disable point rounding
const roundedPoints = (svgOpts.coordinateDecimals < 0) ? points : points.map(
p => p.map(x => +x.toFixed(svgOpts.coordinateDecimals))
)
const paths = polys.map((poly) => {
const xys = poly.vertexIndices.map(i => `${roundedPoints[i][0]},${roundedPoints[i][1]}`)
const d = 'M' + xys.join('L') + 'Z'
const hasStroke = opts.strokeWidth > 0
// shape-rendering crispEdges resolves the antialiasing issues, at the
// potential cost of some visual degradation. For the best performance
// *and* best visual rendering, use Canvas.
return s('path', {
d,
fill: opts.fill ? poly.color.css() : undefined,
stroke: hasStroke ? poly.color.css() : undefined,
'stroke-width': hasStroke ? opts.strokeWidth : undefined,
'stroke-linejoin': hasStroke ? 'round' : undefined,
'shape-rendering': opts.fill ? 'crispEdges' : undefined
})
})
const svg = s(
'svg',
{
xmlns: svgOpts.includeNamespace ? 'http://www.w3.org/2000/svg' : undefined,
width,
height
},
paths,
destSVG
)
return svg
}
toSVGTree = (svgOpts) => this._toSVG(sNode, null, svgOpts)
toSVG = isBrowser
? (destSVG, svgOpts) => this._toSVG(sDOM, destSVG, svgOpts)
: (destSVG, svgOpts) => this.toSVGTree(svgOpts)
toCanvas = (destCanvas, _canvasOpts = {}) => {
const defaultCanvasOptions = {
scaling: isBrowser ? 'auto' : false,
applyCssScaling: !!isBrowser
}
const canvasOpts = { ...defaultCanvasOptions, ..._canvasOpts }
const { points, polys, opts } = this
const canvas = destCanvas || createCanvas(opts.width, opts.height) // doc.createElement('canvas')
const ctx = canvas.getContext('2d')
if (canvasOpts.scaling) {
const drawRatio = canvasOpts.scaling === 'auto'
? getScalingRatio(ctx)
: canvasOpts.scaling
if (drawRatio !== 1) {
// set the 'real' canvas size to the higher width/height
canvas.width = opts.width * drawRatio
canvas.height = opts.height * drawRatio
if (canvasOpts.applyCssScaling) {
// ...then scale it back down with CSS
canvas.style.width = opts.width + 'px'
canvas.style.height = opts.height + 'px'
}
} else {
// this is a normal 1:1 device: don't apply scaling
canvas.width = opts.width
canvas.height = opts.height
if (canvasOpts.applyCssScaling) {
canvas.style.width = ''
canvas.style.height = ''
}
}
ctx.scale(drawRatio, drawRatio)
}
const drawPoly = (poly, fill, stroke) => {
const vertexIndices = poly.vertexIndices
ctx.lineJoin = 'round'
ctx.beginPath()
ctx.moveTo(points[vertexIndices[0]][0], points[vertexIndices[0]][1])
ctx.lineTo(points[vertexIndices[1]][0], points[vertexIndices[1]][1])
ctx.lineTo(points[vertexIndices[2]][0], points[vertexIndices[2]][1])
ctx.closePath()
if (fill) {
ctx.fillStyle = fill.color.css()
ctx.fill()
}
if (stroke) {
ctx.strokeStyle = stroke.color.css()
ctx.lineWidth = stroke.width
ctx.stroke()
}
}
if (opts.fill && opts.strokeWidth < 1) {
// draw background strokes at edge bounds to solve for white gaps due to
// canvas antialiasing. See https://stackoverflow.com/q/19319963/381299
polys.forEach(poly => drawPoly(poly, null, { color: poly.color, width: 2 }))
}
// draw visible fills and strokes
polys.forEach(poly => drawPoly(
poly,
opts.fill && { color: poly.color },
(opts.strokeWidth > 0) && { color: poly.color, width: opts.strokeWidth }
))
return canvas
}
}
================================================
FILE: src/trianglify.browser.test.js
================================================
/**
* @jest-environment jsdom
*/
/* eslint-env jest */
// Because Trianglify is authored using ES modules syntax (which Rollup likes)
// it can't be unit-tested on a per-file basis using Jest without maintaining
// a separate compiler configuration for test files.
//
// In the interest of sanity, this means that instead of unit-testing Trianglify,
// I'm importing the built `dist` files and running a set of integration tests
// against the public API only.
//
// I hope to start unit-testing in the future, when native support for ES modules
// lands in Node and Jest (See https://github.com/facebook/jest/issues/9430)
// pull in the transpiled, browser-bundle version of trianglify.
// this is needed so that we get the browser-targeted Canvas shim, and
// NOT the node library
const trianglify = require('../dist/trianglify.bundle.debug.js')
const Pattern = trianglify.Pattern
describe('Public API', () => {
test('default export should be a function', () => {
expect(trianglify).toBeInstanceOf(Function)
})
test('should export the colorbrewer palette', () => {
expect(trianglify.utils.colorbrewer).toBeDefined()
expect(trianglify.utils.colorbrewer.YlGn).toBeDefined()
})
test('should export the mix utility', () => {
expect(trianglify.utils.mix).toBeDefined()
expect(trianglify.utils.mix).toBeInstanceOf(Function)
})
test('should export the color function generators', () => {
expect(trianglify.colorFunctions.interpolateLinear).toBeDefined()
expect(trianglify.colorFunctions.interpolateLinear).toBeInstanceOf(Function)
expect(trianglify.colorFunctions.sparkle).toBeInstanceOf(Function)
expect(trianglify.colorFunctions.shadows).toBeInstanceOf(Function)
})
})
describe('Options Parsing', () => {
test('should throw an error on unrecognized options', () => {
expect(
() => trianglify({ height: 100, width: 100, bad_option: true })
).toThrow()
})
test('should throw an error on invalid dimensions', () => {
expect(
() => trianglify({ height: 100, width: -1 })
).toThrow()
expect(
() => trianglify({ height: -1, width: 100 })
).toThrow()
})
})
describe('Pattern generation', () => {
test('return a Pattern given valid options', () => {
expect(trianglify({ height: 100, width: 100 })).toBeInstanceOf(Pattern)
})
test('should use default options when invoked', () => {
const pattern = trianglify()
expect(pattern.opts).toEqual(trianglify.defaultOptions)
})
test('should override opts with user-provided options', () => {
const pattern = trianglify({ height: 100, width: 100, cellSize: 1234 })
expect(pattern.opts.cellSize).toEqual(1234)
})
test('should accept the random color option without erroring', () => {
expect(() => {
trianglify({ xColors: 'random' })
trianglify({ yColors: 'random' })
}).not.toThrow()
})
test('should accept the match color option without erroring', () => {
expect(() => {
trianglify({ xColors: 'random', yColors: 'match' })
}).not.toThrow()
})
test('should accept a named colorbrewer palette without erroring', () => {
expect(() => {
trianglify({ xColors: 'RdBu' })
trianglify({ yColors: 'OrRd' })
}).not.toThrow()
})
test('should error on a names palette that does not exist', () => {
expect(() => {
trianglify({ xColors: 'Foo' })
trianglify({ yColors: 'Bar' })
}).toThrow()
})
test('should generate well-formed geometry', () => {
const pattern = trianglify({ height: 100, width: 100, cellSize: 20 })
// we care about pattern.points and pattern.polys here
expect(pattern.points).toBeInstanceOf(Array)
// assert that points is an array of [x, y] tuples
pattern.points.forEach(point => {
expect(point).toBeInstanceOf(Array)
expect(point).toHaveLength(2)
})
// asset the polys looks right
expect(pattern.polys).toBeInstanceOf(Array)
pattern.polys.forEach(poly => {
expect(poly).toBeInstanceOf(Object)
expect(Object.keys(poly)).toEqual(['vertexIndices', 'centroid', 'color'])
})
})
test('should be random by default', () => {
const pattern1 = trianglify()
const pattern2 = trianglify()
expect(pattern1.toSVG()).not.toEqual(pattern2.toSVG())
})
test('should be deterministic when seeded', () => {
const pattern1 = trianglify({ seed: 'deadbeef' })
const pattern2 = trianglify({ seed: 'deadbeef' })
expect(pattern1.toSVG()).toEqual(pattern2.toSVG())
})
test('should match snapshot for non-breaking version bumps', () => {
expect(trianglify({ seed: 'snapshotText' }).toSVG()).toMatchSnapshot()
})
})
describe('Pattern outputs in browser environment', () => {
describe('#toSVG', () => {
test('returns a well-formed SVG node', () => {
const pattern = trianglify()
const svgDOM = pattern.toSVG()
expect(svgDOM.tagName).toEqual('svg')
expect(svgDOM.children).toBeInstanceOf(global.HTMLCollection)
Array.from(svgDOM.children).forEach(node => {
expect(node.tagName).toEqual('path')
})
expect(svgDOM.children).toHaveLength(pattern.polys.length)
})
test('supports rendering to the destSVG target', () => {
const destSVG = document.createElementNS('http://www.w3.org/2000/svg', 'svg')
expect(destSVG.children).toHaveLength(0)
const pattern = trianglify({ seed: 'destSVG works' })
// side-effect-ful render to destSVG
pattern.toSVG(destSVG)
expect(destSVG.children).toHaveLength(pattern.polys.length)
expect(destSVG).toMatchSnapshot()
})
})
describe('#toSVGTree', () => {
const pattern = trianglify({ seed: 'foobar' })
const svgTree = pattern.toSVGTree()
test('returns a synthetic tree of object literals', () => {
expect(Object.keys(svgTree)).toEqual(['tagName', 'attrs', 'children', 'toString'])
})
test('serializes to an SVG string', () => {
expect(svgTree.toString()).toMatchSnapshot()
})
})
describe('#toCanvas', () => {
test('returns a Canvas node', () => {
const pattern = trianglify()
const canvas = pattern.toCanvas()
expect(canvas).toBeInstanceOf(global.HTMLElement)
expect(canvas.tagName).toEqual('CANVAS')
// there's not really any way to test the canvas contents here
})
})
})
================================================
FILE: src/trianglify.js
================================================
/*
* Trianglify.js
* by @qrohlf
*
* Licensed under the GPLv3
*/
import Delaunator from 'delaunator'
// TODO - evaluate smaller alternatives
// (chroma bloats bundle by 40k, minified)
import chroma from 'chroma-js'
import colorbrewer from './utils/colorbrewer'
import Pattern from './pattern'
import mulberry32 from './utils/mulberry32'
import * as geom from './utils/geom'
import * as colorFunctions from './utils/colorFunctions'
const defaultOptions = {
width: 600,
height: 400,
cellSize: 75,
variance: 0.75,
seed: null,
xColors: 'random',
yColors: 'match',
palette: colorbrewer,
colorSpace: 'lab',
colorFunction: colorFunctions.interpolateLinear(0.5),
fill: true,
strokeWidth: 0,
points: null
}
// This function does the "core" render-independent work:
//
// 1. Parse and munge options
// 2. Setup cell geometry
// 3. Generate random points within cell geometry
// 4. Use the Delaunator library to run the triangulation
// 5. Do color interpolation to establish the fundamental coloring of the shapes
export default function trianglify (_opts = {}) {
Object.keys(_opts).forEach(k => {
if (defaultOptions[k] === undefined) {
throw TypeError(`Unrecognized option: ${k}`)
}
})
const opts = { ...defaultOptions, ..._opts }
if (!(opts.height > 0)) {
throw TypeError(`invalid height: ${opts.height}`)
}
if (!(opts.width > 0)) {
throw TypeError(`invalid width: ${opts.width}`)
}
// standard randomizer, used for point gen and layout
const rand = mulberry32(opts.seed)
const randomFromPalette = () => {
if (opts.palette instanceof Array) {
return opts.palette[Math.floor(rand() * opts.palette.length)]
}
const keys = Object.keys(opts.palette)
return opts.palette[keys[Math.floor(rand() * keys.length)]]
}
// The first step here is to set up our color scales for the X and Y axis.
// First, munge the shortcut options like 'random' or 'match' into real color
// arrays. Then, set up a Chroma scale in the appropriate color space.
const processColorOpts = (colorOpt) => {
switch (true) {
case Array.isArray(colorOpt):
return colorOpt
case !!opts.palette[colorOpt]:
return opts.palette[colorOpt]
case colorOpt === 'random':
return randomFromPalette()
default:
throw TypeError(`Unrecognized color option: ${colorOpt}`)
}
}
const xColors = processColorOpts(opts.xColors)
const yColors = opts.yColors === 'match'
? xColors
: processColorOpts(opts.yColors)
const xScale = chroma.scale(xColors).mode(opts.colorSpace)
const yScale = chroma.scale(yColors).mode(opts.colorSpace)
// Our next step is to generate a pseudo-random grid of {x, y} points,
// (or to simply utilize the points that were passed to us)
const points = opts.points || getPoints(opts, rand)
// Once we have the points array, run the triangulation
var geomIndices = Delaunator.from(points).triangles
// ...and then generate geometry and color data:
// use a different (salted) randomizer for the color function so that
// swapping out color functions doesn't change the pattern geometry itself
const salt = 42
const cRand = mulberry32(opts.seed ? opts.seed + salt : null)
const polys = []
for (let i = 0; i < geomIndices.length; i += 3) {
// convert shallow array-packed vertex indices into 3-tuples
const vertexIndices = [
geomIndices[i],
geomIndices[i + 1],
geomIndices[i + 2]
]
// grab a copy of the actual vertices to use for calculations
const vertices = vertexIndices.map(i => points[i])
const { width, height } = opts
const norm = num => Math.max(0, Math.min(1, num))
const centroid = geom.getCentroid(vertices)
const xPercent = norm(centroid.x / width)
const yPercent = norm(centroid.y / height)
const color = opts.colorFunction({
centroid, // centroid of polygon, non-normalized
xPercent, // x-coordinate of centroid, normalized to [0, 1]
yPercent, // y-coordinate of centroid, normalized to [0, 1]
vertexIndices, // vertex indices of the polygon
vertices, // [x, y] vertices of the polygon
xScale, // x-colors scale for the pattern
yScale, // y-colors scale for the pattern
points, // array of generated points for the pattern
opts, // options used to initialize the pattern
random: cRand // seeded randomization function for use by color functions
})
polys.push({
vertexIndices,
centroid,
color // chroma color object
})
}
return new Pattern(points, polys, opts)
}
const getPoints = (opts, random) => {
const { width, height, cellSize, variance } = opts
// pad by 2 cells outside the visible area on each side to ensure we fully
// cover the 'artboard'
const colCount = Math.floor(width / cellSize) + 4
const rowCount = Math.floor(height / cellSize) + 4
// determine bleed values to ensure that the grid is centered within the
// artboard
const bleedX = ((colCount * cellSize) - width) / 2
const bleedY = ((rowCount * cellSize) - height) / 2
// apply variance to cellSize to get cellJitter in pixels
const cellJitter = cellSize * variance
const getJitter = () => (random() - 0.5) * cellJitter
const pointCount = colCount * rowCount
const halfCell = cellSize / 2
const points = Array(pointCount).fill(null).map((_, i) => {
const col = i % colCount
const row = Math.floor(i / colCount)
// [x, y, z]
return [
-bleedX + col * cellSize + halfCell + getJitter(),
-bleedY + row * cellSize + halfCell + getJitter()
]
})
return points
}
// tweak some of the exports here
trianglify.utils = {
mix: chroma.mix,
colorbrewer
}
trianglify.colorFunctions = colorFunctions
trianglify.Pattern = Pattern
trianglify.defaultOptions = defaultOptions
================================================
FILE: src/trianglify.node.test.js
================================================
/**
* @jest-environment node
*/
/* eslint-env jest */
// Here, we test the node-specific functionality of Trianglify.
const trianglify = require('../dist/trianglify.js')
const { Canvas } = require('canvas')
const Pattern = trianglify.Pattern
describe('Pattern generation', () => {
test('return a Pattern given valid options', () => {
expect(trianglify({ height: 100, width: 100 })).toBeInstanceOf(Pattern)
})
test('should be random by default', () => {
const pattern1 = trianglify()
const pattern2 = trianglify()
expect(pattern1.toSVG()).not.toEqual(pattern2.toSVG())
})
test('should match snapshot for non-breaking version bumps', () => {
expect(trianglify({ seed: 'snapshotText' }).toSVG().toString()).toMatchSnapshot()
})
})
describe('Pattern outputs in a node environment', () => {
describe('#toSVG', () => {
const pattern = trianglify()
const svgTree = pattern.toSVG()
test('returns a synthetic tree of object literals', () => {
expect(Object.keys(svgTree)).toEqual(['tagName', 'attrs', 'children', 'toString'])
})
})
describe('#toCanvas', () => {
const pattern = trianglify()
const canvas = pattern.toCanvas()
test('returns a node-canvas Canvas object', () => {
expect(canvas).toBeInstanceOf(Canvas)
expect(canvas.createPNGStream).toBeInstanceOf(Function)
})
})
})
================================================
FILE: src/utils/colorFunctions.js
================================================
import chroma from 'chroma-js'
// Built in color functions provided for your convenience.
//
// Usage example:
//
// const pattern = trianglify({
// width: 300,
// height: 200,
// colorFunction: trianglify.colorFunctions.sparkle(0.2)
// })
//
// the snippet above gives you a trianglify pattern with a 20% random
// jitter applied to the x and y gradient scales
// Linear interpolation of two gradients, one for the x and one for the y
// axis. This is the default Trianglify color function.
// The bias parameter controls how prevalent the y axis is versus the x axis
export const interpolateLinear = (bias = 0.5) =>
({ xPercent, yPercent, xScale, yScale, opts }) =>
chroma.mix(xScale(xPercent), yScale(yPercent), bias, opts.colorSpace)
// Give the pattern a 'sparkle' effect by introducing random noise into the
// x and y gradients, making for higher contrast between cells.
export const sparkle = (jitterFactor = 0.15) =>
({ xPercent, yPercent, xScale, yScale, opts, random }) => {
const jitter = () => (random() - 0.5) * jitterFactor
const a = xScale(xPercent + jitter())
const b = yScale(yPercent + jitter())
return chroma.mix(a, b, 0.5, opts.colorSpace)
}
// This is similar to the sparkle effect, but instead of swapping colors around
// it darkens cells by a random amount. The shadowIntensity parameter controls
// how dark the darkest shadows are.
export const shadows = (shadowIntensity = 0.8) => {
return ({ xPercent, yPercent, xScale, yScale, opts, random }) => {
const a = xScale(xPercent)
const b = yScale(yPercent)
const color = chroma.mix(a, b, 0.5, opts.colorSpace)
return color.darken(shadowIntensity * random())
}
}
================================================
FILE: src/utils/colorbrewer.js
================================================
/*
* colorbrewer.js
*
* Colorbrewer colors, by Cindy Brewer
*/
export default {
YlGn: ['#ffffe5', '#f7fcb9', '#d9f0a3', '#addd8e', '#78c679', '#41ab5d', '#238443', '#006837', '#004529'],
YlGnBu: ['#ffffd9', '#edf8b1', '#c7e9b4', '#7fcdbb', '#41b6c4', '#1d91c0', '#225ea8', '#253494', '#081d58'],
GnBu: ['#f7fcf0', '#e0f3db', '#ccebc5', '#a8ddb5', '#7bccc4', '#4eb3d3', '#2b8cbe', '#0868ac', '#084081'],
BuGn: ['#f7fcfd', '#e5f5f9', '#ccece6', '#99d8c9', '#66c2a4', '#41ae76', '#238b45', '#006d2c', '#00441b'],
PuBuGn: ['#fff7fb', '#ece2f0', '#d0d1e6', '#a6bddb', '#67a9cf', '#3690c0', '#02818a', '#016c59', '#014636'],
PuBu: ['#fff7fb', '#ece7f2', '#d0d1e6', '#a6bddb', '#74a9cf', '#3690c0', '#0570b0', '#045a8d', '#023858'],
BuPu: ['#f7fcfd', '#e0ecf4', '#bfd3e6', '#9ebcda', '#8c96c6', '#8c6bb1', '#88419d', '#810f7c', '#4d004b'],
RdPu: ['#fff7f3', '#fde0dd', '#fcc5c0', '#fa9fb5', '#f768a1', '#dd3497', '#ae017e', '#7a0177', '#49006a'],
PuRd: ['#f7f4f9', '#e7e1ef', '#d4b9da', '#c994c7', '#df65b0', '#e7298a', '#ce1256', '#980043', '#67001f'],
OrRd: ['#fff7ec', '#fee8c8', '#fdd49e', '#fdbb84', '#fc8d59', '#ef6548', '#d7301f', '#b30000', '#7f0000'],
YlOrRd: ['#ffffcc', '#ffeda0', '#fed976', '#feb24c', '#fd8d3c', '#fc4e2a', '#e31a1c', '#bd0026', '#800026'],
YlOrBr: ['#ffffe5', '#fff7bc', '#fee391', '#fec44f', '#fe9929', '#ec7014', '#cc4c02', '#993404', '#662506'],
Purples: ['#fcfbfd', '#efedf5', '#dadaeb', '#bcbddc', '#9e9ac8', '#807dba', '#6a51a3', '#54278f', '#3f007d'],
Blues: ['#f7fbff', '#deebf7', '#c6dbef', '#9ecae1', '#6baed6', '#4292c6', '#2171b5', '#08519c', '#08306b'],
Greens: ['#f7fcf5', '#e5f5e0', '#c7e9c0', '#a1d99b', '#74c476', '#41ab5d', '#238b45', '#006d2c', '#00441b'],
Oranges: ['#fff5eb', '#fee6ce', '#fdd0a2', '#fdae6b', '#fd8d3c', '#f16913', '#d94801', '#a63603', '#7f2704'],
Reds: ['#fff5f0', '#fee0d2', '#fcbba1', '#fc9272', '#fb6a4a', '#ef3b2c', '#cb181d', '#a50f15', '#67000d'],
Greys: ['#ffffff', '#f0f0f0', '#d9d9d9', '#bdbdbd', '#969696', '#737373', '#525252', '#252525', '#000000'],
PuOr: ['#7f3b08', '#b35806', '#e08214', '#fdb863', '#fee0b6', '#f7f7f7', '#d8daeb', '#b2abd2', '#8073ac', '#542788', '#2d004b'],
BrBG: ['#543005', '#8c510a', '#bf812d', '#dfc27d', '#f6e8c3', '#f5f5f5', '#c7eae5', '#80cdc1', '#35978f', '#01665e', '#003c30'],
PRGn: ['#40004b', '#762a83', '#9970ab', '#c2a5cf', '#e7d4e8', '#f7f7f7', '#d9f0d3', '#a6dba0', '#5aae61', '#1b7837', '#00441b'],
PiYG: ['#8e0152', '#c51b7d', '#de77ae', '#f1b6da', '#fde0ef', '#f7f7f7', '#e6f5d0', '#b8e186', '#7fbc41', '#4d9221', '#276419'],
RdBu: ['#67001f', '#b2182b', '#d6604d', '#f4a582', '#fddbc7', '#f7f7f7', '#d1e5f0', '#92c5de', '#4393c3', '#2166ac', '#053061'],
RdGy: ['#67001f', '#b2182b', '#d6604d', '#f4a582', '#fddbc7', '#ffffff', '#e0e0e0', '#bababa', '#878787', '#4d4d4d', '#1a1a1a'],
RdYlBu: ['#a50026', '#d73027', '#f46d43', '#fdae61', '#fee090', '#ffffbf', '#e0f3f8', '#abd9e9', '#74add1', '#4575b4', '#313695'],
Spectral: ['#9e0142', '#d53e4f', '#f46d43', '#fdae61', '#fee08b', '#ffffbf', '#e6f598', '#abdda4', '#66c2a5', '#3288bd', '#5e4fa2'],
RdYlGn: ['#a50026', '#d73027', '#f46d43', '#fdae61', '#fee08b', '#ffffbf', '#d9ef8b', '#a6d96a', '#66bd63', '#1a9850', '#006837']
}
================================================
FILE: src/utils/debugRender.js
================================================
export const debugRender = (opts, points) => {
const doc = window.document
const svg = window.document.createElementNS('http://www.w3.org/2000/svg', 'svg')
svg.setAttribute('width', opts.width + 400)
svg.setAttribute('height', opts.height + 400)
points.forEach(p => {
const circle = doc.createElementNS('http://www.w3.org/2000/svg', 'circle')
circle.setAttribute('cx', p[0])
circle.setAttribute('cy', p[1])
circle.setAttribute('r', 2)
svg.appendChild(circle)
})
const bounds = doc.createElementNS('http://www.w3.org/2000/svg', 'rect')
bounds.setAttribute('x', 0)
bounds.setAttribute('y', 0)
bounds.setAttribute('width', opts.width)
bounds.setAttribute('height', opts.height)
bounds.setAttribute('stroke-width', 1)
bounds.setAttribute('stroke', 'blue')
bounds.setAttribute('fill', 'none')
svg.appendChild(bounds)
svg.setAttribute('viewBox', `-100 -100 ${opts.width + 200} ${opts.height + 200}`)
return svg
}
================================================
FILE: src/utils/geom.js
================================================
// Given an array of coordinates representing a triangle, find the centroid
// of the triangle and return it as an {x, y} object
// Accepts a single [[x, y], [x, y], [x, y]] argument
export const getCentroid = d => {
return {
x: (d[0][0] + d[1][0] + d[2][0]) / 3,
y: (d[0][1] + d[1][1] + d[2][1]) / 3
}
}
export const getTopmostVertexIndex = (vertexIndices, points) => (
vertexIndices.reduce(
(topmost, i) => (points[i][1] < points[topmost][1] ? i : topmost),
vertexIndices[0]
)
)
================================================
FILE: src/utils/getScalingRatio.js
================================================
export default function (ctx) {
// adapted from https://gist.github.com/callumlocke/cc258a193839691f60dd
const backingStoreRatio = (
ctx.webkitBackingStorePixelRatio ||
ctx.mozBackingStorePixelRatio ||
ctx.msBackingStorePixelRatio ||
ctx.oBackingStorePixelRatio ||
ctx.backingStorePixelRatio || 1
)
const devicePixelRatio = (typeof window !== 'undefined' && window.devicePixelRatio) || 1
const drawRatio = devicePixelRatio / backingStoreRatio
return drawRatio
}
================================================
FILE: src/utils/mulberry32.js
================================================
// Fast seeded RNG adapted from the public-domain implementation
// by @byrc: https://github.com/bryc/code/blob/master/jshash/PRNGs.md
//
// Usage:
// const randFn = mulberry32('string seed')
// const randomNumber = randFn() // [0, 1] random float
export default function mulberry32 (seed) {
if (!seed) { seed = Math.random().toString(36) } // support no-seed usage
var a = xmur3(seed)()
return function () {
a |= 0; a = a + 0x6D2B79F5 | 0
var t = Math.imul(a ^ a >>> 15, 1 | a)
t = t + Math.imul(t ^ t >>> 7, 61 | t) ^ t
return ((t ^ t >>> 14) >>> 0) / 4294967296
}
}
function xmur3 (str) {
for (var i = 0, h = 1779033703 ^ str.length; i < str.length; i++) {
h = Math.imul(h ^ str.charCodeAt(i), 3432918353)
h = h << 13 | h >>> 19
}
return function () {
h = Math.imul(h ^ h >>> 16, 2246822507)
h = Math.imul(h ^ h >>> 13, 3266489909)
return (h ^= h >>> 16) >>> 0
}
}
gitextract_0pzmxqqx/
├── .babelrc
├── .browserslistrc
├── .github/
│ └── workflows/
│ └── build.yml
├── .gitignore
├── .nvmrc
├── CONTRIBUTING.md
├── LICENSE
├── Readme.md
├── changelog.txt
├── examples/
│ ├── basic-web-example.html
│ ├── color-function-example.html
│ ├── custom-points-example.html
│ ├── destsvg-example.html
│ ├── save-as-png.js
│ ├── save-as-svg.js
│ └── transparency-example.html
├── package.json
├── rollup.config.js
└── src/
├── __snapshots__/
│ ├── trianglify.browser.test.js.snap
│ └── trianglify.node.test.js.snap
├── pattern.js
├── trianglify.browser.test.js
├── trianglify.js
├── trianglify.node.test.js
└── utils/
├── colorFunctions.js
├── colorbrewer.js
├── debugRender.js
├── geom.js
├── getScalingRatio.js
└── mulberry32.js
SYMBOL INDEX (5 symbols across 3 files)
FILE: src/pattern.js
class Pattern (line 33) | class Pattern {
method constructor (line 34) | constructor (points, polys, opts) {
FILE: src/trianglify.js
function trianglify (line 42) | function trianglify (_opts = {}) {
FILE: src/utils/mulberry32.js
function mulberry32 (line 7) | function mulberry32 (seed) {
function xmur3 (line 18) | function xmur3 (str) {
Condensed preview — 30 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (186K chars).
[
{
"path": ".babelrc",
"chars": 107,
"preview": "{\n \"plugins\": [\"@babel/plugin-proposal-class-properties\"],\n \"presets\": [\n [\"@babel/preset-env\"]\n ]\n}\n"
},
{
"path": ".browserslistrc",
"chars": 58,
"preview": "defaults\nnot IE 11\nnot IE_Mob 11\nmaintained node versions\n"
},
{
"path": ".github/workflows/build.yml",
"chars": 539,
"preview": "name: build\n\non:\n push:\n branches: [ master ]\n pull_request:\n branches: [ master ]\n types: [synchronize]\n\njob"
},
{
"path": ".gitignore",
"chars": 18,
"preview": "node_modules\ndist\n"
},
{
"path": ".nvmrc",
"chars": 4,
"preview": "v12\n"
},
{
"path": "CONTRIBUTING.md",
"chars": 1008,
"preview": "# Contributing Guidelines\n\nPull requests and issues are welcome! For all contributions, please:\n\n1. Read the [Readme](Re"
},
{
"path": "LICENSE",
"chars": 32472,
"preview": " GNU GENERAL PUBLIC LICENSE\n Version 3, 29 June 2007\n\n Copyright (C) 2007 Free "
},
{
"path": "Readme.md",
"chars": 10579,
"preview": "# Trianglify\n\n\nTrianglify is a library that I wrote to generate nice SVG background images like this one:\n\n![](https://c"
},
{
"path": "changelog.txt",
"chars": 700,
"preview": "v4\n- ground-up port to ES2015\n- support for node-canvas 2.6\n- comprehensive test suite\n- support for rendering wireframe"
},
{
"path": "examples/basic-web-example.html",
"chars": 1437,
"preview": "<!DOCTYPE html>\n<html lang=\"en\">\n <head>\n <meta charset=\"utf-8\">\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE="
},
{
"path": "examples/color-function-example.html",
"chars": 3966,
"preview": "<!DOCTYPE html>\n<html lang=\"en\">\n <head>\n <meta charset=\"utf-8\">\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE="
},
{
"path": "examples/custom-points-example.html",
"chars": 1292,
"preview": "<!DOCTYPE html>\n<html lang=\"en\">\n <head>\n <meta charset=\"utf-8\">\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE="
},
{
"path": "examples/destsvg-example.html",
"chars": 1139,
"preview": "<!DOCTYPE html>\n<html lang=\"en\">\n <head>\n <meta charset=\"utf-8\">\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE="
},
{
"path": "examples/save-as-png.js",
"chars": 607,
"preview": "// Basic command-line example\n// Usage: node save-as-png.js\nvar fs = require('fs')\nvar trianglify = require('../dist/tri"
},
{
"path": "examples/save-as-svg.js",
"chars": 420,
"preview": "// Basic command-line example\n// Usage: node save-as-svg.js\nvar fs = require('fs')\nvar trianglify = require('../dist/tri"
},
{
"path": "examples/transparency-example.html",
"chars": 2889,
"preview": "<!DOCTYPE html>\n<html lang=\"en\">\n <head>\n <meta charset=\"utf-8\">\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE="
},
{
"path": "package.json",
"chars": 1699,
"preview": "{\n \"name\": \"trianglify\",\n \"version\": \"4.1.1\",\n \"description\": \"Trianglify is a javascript library for generating colo"
},
{
"path": "rollup.config.js",
"chars": 1242,
"preview": "import commonjs from '@rollup/plugin-commonjs'\nimport resolve from '@rollup/plugin-node-resolve'\nimport babel from '@rol"
},
{
"path": "src/__snapshots__/trianglify.browser.test.js.snap",
"chars": 69343,
"preview": "// Jest Snapshot v1, https://goo.gl/fbAQLP\n\nexports[`Pattern generation should match snapshot for non-breaking version b"
},
{
"path": "src/__snapshots__/trianglify.node.test.js.snap",
"chars": 21417,
"preview": "// Jest Snapshot v1, https://goo.gl/fbAQLP\n\nexports[`Pattern generation should match snapshot for non-breaking version b"
},
{
"path": "src/pattern.js",
"chars": 5471,
"preview": "import { createCanvas } from 'canvas' // this is a simple shim in browsers\nimport getScalingRatio from './utils/getScali"
},
{
"path": "src/trianglify.browser.test.js",
"chars": 6355,
"preview": "/**\n * @jest-environment jsdom\n */\n/* eslint-env jest */\n// Because Trianglify is authored using ES modules syntax (whic"
},
{
"path": "src/trianglify.js",
"chars": 5860,
"preview": "/*\n * Trianglify.js\n * by @qrohlf\n *\n * Licensed under the GPLv3\n */\n\nimport Delaunator from 'delaunator'\n// TODO - eval"
},
{
"path": "src/trianglify.node.test.js",
"chars": 1369,
"preview": "/**\n * @jest-environment node\n */\n/* eslint-env jest */\n// Here, we test the node-specific functionality of Trianglify.\n"
},
{
"path": "src/utils/colorFunctions.js",
"chars": 1689,
"preview": "import chroma from 'chroma-js'\n// Built in color functions provided for your convenience.\n//\n// Usage example:\n//\n// con"
},
{
"path": "src/utils/colorbrewer.js",
"chars": 3253,
"preview": "/*\n * colorbrewer.js\n *\n * Colorbrewer colors, by Cindy Brewer\n */\n\nexport default {\n YlGn: ['#ffffe5', '#f7fcb9', '#d9"
},
{
"path": "src/utils/debugRender.js",
"chars": 964,
"preview": "export const debugRender = (opts, points) => {\n const doc = window.document\n const svg = window.document.createElement"
},
{
"path": "src/utils/geom.js",
"chars": 506,
"preview": "// Given an array of coordinates representing a triangle, find the centroid\n// of the triangle and return it as an {x, y"
},
{
"path": "src/utils/getScalingRatio.js",
"chars": 495,
"preview": "export default function (ctx) {\n // adapted from https://gist.github.com/callumlocke/cc258a193839691f60dd\n const backi"
},
{
"path": "src/utils/mulberry32.js",
"chars": 921,
"preview": "// Fast seeded RNG adapted from the public-domain implementation\n// by @byrc: https://github.com/bryc/code/blob/master/j"
}
]
About this extraction
This page contains the full source code of the qrohlf/trianglify GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 30 files (173.7 KB), approximately 64.4k tokens, and a symbol index with 5 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.