README

//
Copyright 2011 Invient (www.invient.com)

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.

You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
//

Invient Charts - Elegant interactive charts without browser plugins.

Invient Charts is a Vaadin add-on component for creating charts in Vaadin
applications. Supported chart types are:
* Line
* Spline
* Scatter
* Area - Line
* Area - Spline
* Bar
* Column 
* Pie
* Compound -- i.e., a chart that combines multiple types into one.

FEATURES
* Native SVG-based rendering (VML on IE) on desktop and mobile device browsers.
* Dynamically add or remove series, axes, or points at any time after creation.
* Multiple y or x axes in a graph.
* Inverted chart or reversed axis.
* Customizable tooltip labels when mousing over a point or series.
* Rotatable text labels for points and axis titles.
* Click+drag or Touch+drag zooming. 
* Server-side events upon user interaction.

PREREQUISITES
Invient Charts is a Vaadin wrapper for Highcharts, a JavaScript library. 
Rendering of the charts on the browser is performed by Highcharts.
Invient Charts exposes Highcharts' features to Vaadin programmers via 
a server-side API.

Note:
* Compile the widgetset after adding Inveint Charts jar file into the 
project's classpath.
* Load Highcharts JavaScript libarary files by extending Vaadin's 
ApplicationServlet. Check the source code under demo directory for details.
* Highcharts uses jQuery. Load jQuery library (v 1.4.4 or above) before 
loading Highcharts JavaScript files.

If you are using eclipse based project structure, then you can store the 
JavaScript files in WebContent directory.

LICENSE
Invient Charts is licensed under Apache License 2.0. However, it requires 
Highcharts JavaScript library which is licensed under separate terms:
http://www.highcharts.com/license. You must, therefore, adhere to both
licenses to use Invient Charts in your application.

DEMO DATA
The Vaadin demo application of Invient Charts mimics the format and data of 
Highcharts Demo Gallery at http://www.highcharts.com/demo/.