rla / dataline

Quick and dirty script to draw line graphs.

Dataline

Quick and dirty script to draw line graphs. Current features:

• Min/max/zero line.
• Min/max labels.
• Single line.
• Width-responsive.
• Drawn onto HTML5 canvas.

Multiple lines, ticks, x-axis labels etc. are not support. There are other libraries that support all of these. It has no dependencies but requires ES5, canvas and requestAnimationFrame support.

Example

HTML/JavaScript code:

<canvas class="chart" id="chart" data-values="1,2,3,-1,-3,0,1,2"></canvas>        
<script src="dataline.js"></script>
<script>Dataline.draw('chart');</script>

CSS code:

.chart { width: 100%; height: 200px; }

Example can be seen on http://demos.rlaanemets.com/dataline/example.html

API

Draw chart:

Dataline.draw(elementId, [array]);

where array is the optional array of numbers for the line. This method must be called only once per element.

License

The MIT License. See the LICENSE file.

dataline's Issues

Support empty data-values attribute

Add ESLint check