flowchart.js

Example

example

Requirements

You will need Raphaël

CDN

flowchart.js is on CDNJS, feel free to use it

Usage

On your page you need to include Raphaël like so:

<script src="raphael-min.js"></script>

or

npm install flowchart.js

and then

<div id="diagram">Diagram will be placed here</div>
<script src="flowchart.js"></script>
<script>
  var diagram = flowchart.parse('st=>start: Start:>http://www.google.com[blank]\n' +
                                'e=>end:>http://www.google.com\n' +
                                'op1=>operation: My Operation\n' +
                                'op2=>operation: Stuff|current\n' +
                                'sub1=>subroutine: My Subroutine\n' +
                                'cond=>condition: Yes \n' + // use cond(align-next=no) to disable vertical align of symbols below
                                'or No?\n:>http://www.google.com\n' +
                                'c2=>condition: Good idea|rejected\n' +
                                'io=>inputoutput: catch something...|request\n' +
                                '\n' +
                                'st->op1(right)->cond\n' +
                                'cond(yes, right)->c2\n' + // conditions can also be redirected like cond(yes, bottom) or cond(yes, right)
                                'cond(no)->sub1(left)->op1\n' + // the other symbols too...
                                'c2(true)->io->e\n' +
                                'c2(false)->op2->e'  //allow for true and false in conditionals
                                );
  diagram.drawSVG('diagram');

  // you can also try to pass options:

  diagram.drawSVG('diagram', {
                                'x': 0,
                                'y': 0,
                                'line-width': 3,
                                'line-length': 50,
                                'text-margin': 10,
                                'font-size': 14,
                                'font-color': 'black',
                                'line-color': 'black',
                                'element-color': 'black',
                                'fill': 'white',
                                'yes-text': 'yes',
                                'no-text': 'no',
                                'arrow-end': 'block',
                                'scale': 1,
                                // style symbol types
                                'symbols': {
                                    'start': {
                                      'font-color': 'red',
                                      'element-color': 'green',
                                      'fill': 'yellow'
                                    },
                                    'end':{
                                        'class': 'end-element'
                                    }
                                },
                                // even flowstate support ;-)
                                'flowstate' : {
                                    // 'past' : { 'fill' : '#CCCCCC', 'font-size' : 12},
                                    // 'current' : {'fill' : 'yellow', 'font-color' : 'red', 'font-weight' : 'bold'},
                                    // 'future' : { 'fill' : '#FFFF99'},
                                    'request' : { 'fill' : 'blue'}//,
                                    // 'invalid': {'fill' : '#444444'},
                                    // 'approved' : { 'fill' : '#58C4A3', 'font-size' : 12, 'yes-text' : 'APPROVED', 'no-text' : 'n/a' },
                                    // 'rejected' : { 'fill' : '#C45879', 'font-size' : 12, 'yes-text' : 'n/a', 'no-text' : 'REJECTED' }
                                  }
                              });
</script>

Advice

Symbols that should possibly not be used in the text: => and -> and :> and | and @>

If you want to emphasize a specific path in your flowchart, you can additionally define it like this:

st@>op1({"stroke":"Red"})@>cond({"stroke":"Red","stroke-width":6,"arrow-end":"classic-wide-long"})@>c2({"stroke":"Red"})@>op2({"stroke":"Red"})@>e({"stroke":"Red"})

Contributors

via GitHub

Thanks

Many thanks to js-sequence-diagrams which greatly inspired this project, and forms the basis for the syntax.

Licence

Copyright (c) 2018 Adriano Raiano

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.