TeeChart

0.1.4 • Public • Published

TeeChart Javascript charting, module for Node.js and jQuery plugin.

Steema Software http://www.steema.com

Charting module using TeeChart for JavaScript. Free for non-commercial use. See license.txt.

For TeeChart Javascript demos, documentation, support:

http://www.steema.com/teechart/html5/

Node.js Dependencies:

To create and render a chart picture at server-side, an HTML5 node library is required.

TeeChart has been tested on Linux using node.js and node-canvas module.

Installation:

-Install node.js: http://nodejs.org

-Install node-canvas module: http://github.com/LearnBoost/node-canvas

Or:

npm install teechart

Running included example:

node main.js

This small javascript code will accept requests via web to return an image/png sample chart:

http://127.0.0.1:4242

Notes:

The important bits of code are:

  1. Using TeeChart and node-canvas modules:

var tee=require('./lib/teechart.js'),

  Canvas=require('./node-canvas/lib/canvas.js');
  1. Creating a Tee.Chart, passing the canvas:

var canvas = new Canvas(500,300),

  chart = new tee.Tee.Chart(canvas);
  1. Manually specifying chart size (this step should not be mandatory in future releases) :

    chart.bounds.set(0,0,500,300);

  2. Add chart series, data, change formatting, etc, and DRAW:

chart.title.text="Node.js and TeeChart";

chart.addSeries(new tee.Tee.Bar([5,3,7,1,2]));

chart.draw();

  1. Return the chart as image, or save it to a file, etc (Check node-canvas documentation for more options)

res.writeHead(200, {'Content-Type': 'text/html'});

res.end("");

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