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https://github.com/kroitor/asciichart
Nice-looking lightweight console ASCII line charts ╭┈╯ for NodeJS, browsers and terminal, no dependencies
https://github.com/kroitor/asciichart
ansi ascii ascii-chart browser chart charting charting-library charts console console-log graph javascript js line-charts lines node-js nodejs plot terminal text-chart
Last synced: 2 days ago
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Nice-looking lightweight console ASCII line charts ╭┈╯ for NodeJS, browsers and terminal, no dependencies
- Host: GitHub
- URL: https://github.com/kroitor/asciichart
- Owner: kroitor
- License: mit
- Created: 2017-02-10T06:48:14.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2024-10-16T05:04:34.000Z (about 2 months ago)
- Last Synced: 2024-12-03T03:02:27.544Z (9 days ago)
- Topics: ansi, ascii, ascii-chart, browser, chart, charting, charting-library, charts, console, console-log, graph, javascript, js, line-charts, lines, node-js, nodejs, plot, terminal, text-chart
- Language: Python
- Homepage:
- Size: 301 KB
- Stars: 1,891
- Watchers: 32
- Forks: 96
- Open Issues: 22
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE.txt
Awesome Lists containing this project
- awesome-ascii - asciichart
- my-awesome - kroitor/asciichart - chart,browser,chart,charting,charting-library,charts,console,console-log,graph,javascript,js,line-charts,lines,node-js,nodejs,plot,terminal,text-chart pushed_at:2024-10 star:1.9k fork:0.1k Nice-looking lightweight console ASCII line charts ╭┈╯ for NodeJS, browsers and terminal, no dependencies (Python)
README
# asciichart
[](https://npmjs.com/package/asciichart) [](https://pypi.python.org/pypi/asciichartpy) [](https://travis-ci.org/kroitor/asciichart) [](https://coveralls.io/github/kroitor/asciichart?branch=master) [](https://github.com/kroitor/asciichart/blob/master/LICENSE.txt)
Console ASCII line charts in pure Javascript (for NodeJS and browsers) with no dependencies.
## Usage
### NodeJS
```sh
npm install asciichart
```
```javascript
var asciichart = require ('asciichart')
var s0 = new Array (120)
for (var i = 0; i < s0.length; i++)
s0[i] = 15 * Math.sin (i * ((Math.PI * 4) / s0.length))
console.log (asciichart.plot (s0))
```
### Browsers
```html
asciichart
var s0 = new Array (120)
for (var i = 0; i < s0.length; i++)
s0[i] = 15 * Math.sin (i * ((Math.PI * 4) / s0.length))
console.log (asciichart.plot (s0))
```
### Options
The width of the chart will always equal the length of data series. The height and range are determined automatically.
```javascript
var s0 = new Array (120)
for (var i = 0; i < s0.length; i++)
s0[i] = 15 * Math.sin (i * ((Math.PI * 4) / s0.length))
console.log (asciichart.plot (s0))
```
The output can be configured by passing a second parameter to the `plot (series, config)` function. The following options are supported:
```javascript
var config = {
offset: 3, // axis offset from the left (min 2)
padding: ' ', // padding string for label formatting (can be overridden)
height: 10, // any height you want
// the label format function applies default padding
format: function (x, i) { return (padding + x.toFixed (2)).slice (-padding.length) }
}
```
### Scale To Desired Height
```javascript
var s = []
for (var i = 0; i < 120; i++)
s[i] = 15 * Math.cos (i * ((Math.PI * 8) / 120)) // values range from -15 to +15
console.log (asciichart.plot (s, { height: 6 })) // this rescales the graph to ±3 lines
```
### Auto-range
```javascript
var s2 = new Array (120)
s2[0] = Math.round (Math.random () * 15)
for (i = 1; i < s2.length; i++)
s2[i] = s2[i - 1] + Math.round (Math.random () * (Math.random () > 0.5 ? 2 : -2))
console.log (asciichart.plot (s2))
```
### Multiple Series
```javascript
var s2 = new Array (120)
s2[0] = Math.round (Math.random () * 15)
for (i = 1; i < s2.length; i++)
s2[i] = s2[i - 1] + Math.round (Math.random () * (Math.random () > 0.5 ? 2 : -2))
var s3 = new Array (120)
s3[0] = Math.round (Math.random () * 15)
for (i = 1; i < s3.length; i++)
s3[i] = s3[i - 1] + Math.round (Math.random () * (Math.random () > 0.5 ? 2 : -2))
console.log (asciichart.plot ([ s2, s3 ]))
```
### Colors
```javascript
var arr1 = new Array (120)
arr1[0] = Math.round (Math.random () * 15)
for (i = 1; i < arr1.length; i++)
arr1[i] = arr1[i - 1] + Math.round (Math.random () * (Math.random () > 0.5 ? 2 : -2))
var arr2 = new Array (120)
arr2[0] = Math.round (Math.random () * 15)
for (i = 1; i < arr2.length; i++)
arr2[i] = arr2[i - 1] + Math.round (Math.random () * (Math.random () > 0.5 ? 2 : -2))
var arr3 = new Array (120)
arr3[0] = Math.round (Math.random () * 15)
for (i = 1; i < arr3.length; i++)
arr3[i] = arr3[i - 1] + Math.round (Math.random () * (Math.random () > 0.5 ? 2 : -2))
var arr4 = new Array (120)
arr4[0] = Math.round (Math.random () * 15)
for (i = 1; i < arr4.length; i++)
arr4[i] = arr4[i - 1] + Math.round (Math.random () * (Math.random () > 0.5 ? 2 : -2))
var config = {
colors: [
asciichart.blue,
asciichart.green,
asciichart.default, // default color
undefined, // equivalent to default
]
}
console.log (asciichart.plot([ arr1, arr2, arr3, arr4 ], config))
```
### See Also
A util by [madnight](https://github.com/madnight) for drawing Bitcoin/Ether/altcoin charts in command-line console: [bitcoin-chart-cli](https://github.com/madnight/bitcoin-chart-cli).
### Ports
Special thx to all who helped port it to other languages, great stuff!
- [Python port](https://pypi.org/project/asciichartpy) included!
- Java: [ASCIIGraph](https://github.com/MitchTalmadge/ASCIIGraph), ported by [MitchTalmadge](https://github.com/MitchTalmadge). If you're a Java-person, check it out!
- Go: [asciigraph](https://github.com/guptarohit/asciigraph), ported by [guptarohit](https://github.com/guptarohit), Go people! )
- Haskell: [asciichart](https://github.com/madnight/asciichart), ported by [madnight](https://github.com/madnight) to Haskell world!
- Ruby: [ascii_chart](https://github.com/zhustec/ascii_chart), ported by [zhustec](https://github.com/zhustec)!
- Elixir: [asciichart](https://github.com/sndnv/asciichart), ported by [sndv](https://github.com/sndnv)!
- Perl: [App::AsciiChart](https://github.com/vti/app-asciichart), ported by [vti](https://github.com/vti)!
- C: [plot](https://github.com/annacrombie/plot), ported by [annacrombie](https://github.com/annacrombie)!
- C++: [asciichart](https://github.com/Civitasv/asciichart), ported by [Civitasv](https://github.com/Civitasv)!
- R: [asciichartr](https://github.com/blmayer/asciichartr), ported by [blmayer](https://github.com/blmayer)!
- Rust: [rasciigraph](https://github.com/orhanbalci/rasciigraph), ported by [orhanbalci](https://github.com/orhanbalci)!
- PHP: [PHP-colored-ascii-linechart](https://github.com/noximo/PHP-colored-ascii-linechart), ported by [noximo](https://github.com/noximo)!
- C#: [asciichart-sharp](https://github.com/NathanBaulch/asciichart-sharp), ported by [samcarton](https://github.com/samcarton), maintained by [NathanBaulch](https://github.com/NathanBaulch)!
- Deno: [chart](https://github.com/maximousblk/chart), ported by [maximousblk](https://github.com/maximousblk)!
- Lua: [lua-asciichart](https://github.com/wuyudi/lua-asciichart), ported by [wuyudi](https://github.com/wuyudi)!
### Future work (coming soon, hopefully)
- levels and points on the graph!
- even better value formatting and auto-scaling!
