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https://github.com/maximousblk/chart
Console ASCII line charts with no dependencies
https://github.com/maximousblk/chart
chart console-ascii deno
Last synced: about 1 month ago
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Console ASCII line charts with no dependencies
- Host: GitHub
- URL: https://github.com/maximousblk/chart
- Owner: maximousblk
- License: mit
- Created: 2020-10-12T06:43:02.000Z (about 4 years ago)
- Default Branch: master
- Last Pushed: 2023-02-03T12:40:18.000Z (almost 2 years ago)
- Last Synced: 2024-10-23T23:35:05.443Z (about 2 months ago)
- Topics: chart, console-ascii, deno
- Language: TypeScript
- Homepage: https://deno.land/x/chart
- Size: 11.7 KB
- Stars: 64
- Watchers: 2
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-deno - chart - Console ASCII line charts with no dependencies. (Modules / CLI utils)
README
# chart
Console ASCII line charts with no dependencies.
This is a port of the npm package
[`asciichart`](https://www.npmjs.com/package/asciichart) by
[Igor Kroitor](https://github.com/kroitor)
## Usage
```ts
import { plot } from "https://deno.land/x/chart/mod.ts";
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(plot(s0));
```
you can also run [test.ts](./test.ts) if you want to see how it looks.
```sh
deno run https://deno.land/x/chart/test.ts
```
### Options
The width of the chart will always equal the length of data series. The height
and range are determined automatically.
```ts
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(plot(s0));
```
The output can be configured by passing a second parameter to the
`plot(series, config)` function. The following options are supported:
```ts
interface config {
min?: number; // y-axis minimum range
max?: number; // y-axis maximum range
offset?: number; // axis offset from the left (min 2)
padding?: string; // padding string for label formatting (can be overrided)
height?: number; // any height you want
colors?: string[]; // set colors for the output
symbols?: string[]; // change drawing symbols
format?: any; // the label format function applies default padding
}
```
#### Height
```ts
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(plot(s, { height: 6 })); // this rescales the graph to 6 lines
```
#### Auto-range
```ts
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(plot(s2));
```
#### Multiple Series
```ts
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(plot([s2, s3]));
```
### Colors
```ts
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: ["blue", "green", "red", "magenta"] };
console.log(plot([arr1, arr2, arr3, arr4], config));
```
## License
This software is distributed under [The MIT License](./LICENSE)