VisStr
VisStr is a library to visualize a string and its properties such as repetitions, occurrences, and redundancies.
The following image visualizes all palindromes that occurs as substrings in "mississippi$".
See demos and API documents.
Usage
Put a canvas in your html, and then import vis_str.js
like the following.
(vis_str.js
is output to ./bundles
by compile.)
<canvas id="canvas" style="border:1px solid #000000;"> </canvas>
<script type="text/javascript" src="./vis_str.js"></script>
Create an visstr object in your js.
const visstr = window.visstr
const canvas = document.querySelector('#canvas')
// input string
const s = 'abaababaabaab'
// create visstr object.
const vstr = new visstr.VisStr(canvas)
Create a range list you want to draw, and add line style and color, and then group them so that they do not overlap with each other.
// create occurrences of aba.
const occ_aba = [[0, 2], [3, 5], [5, 7], [8, 10]]
// add line style and color.
const ranges = vstr.makeRanges(occ_aba, 'arrow', '#ff0000')
// make group so that they are not overlap with each others.
const range_groups = vstr.nonOverlapRanges(ranges)
Draw the range list by vstr.draw
.
// draw the occurrences.
vstr.draw(s, range_groups)
The canvas draws the range list as following.
See the demo.
Compile
Run the following commands.
$ git clone https://github.com/kg86/visstr.git
$ cd visstr
$ npm install
$ npm run build
Libraries are output in ./lib
.