TeeChart

3.0.2 • Public • Published

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

Steema Software https://www.steema.com


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

For TeeChart Javascript demos, documentation, support:

https://www.steema.com/product/html5

Node.js Dependencies

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

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

Installation

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);
  1. 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("<html><body><img src='"+canvas.toDataURL()+"'/></body></html>");

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Install

npm i TeeChart

Weekly Downloads

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Version

3.0.2

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Unpacked Size

1.68 MB

Total Files

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Collaborators

  • rubenglam
  • norike
  • mogmem
  • davidberneda