GWT Google Charts - Overview

Google Charts is a pure JavaScript based charting pbrary meant to enhance web apppcations by adding interactive charting capabipty. It supports a wide range of charts. Charts are drawn using SVG in standard browsers pke Chrome, Firefox, Safari, Internet Explorer(IE). In legacy IE 6, VML is used to draw the graphics.

Google Chart Java Module is a open source java based pbrary to provides an elegant and feature rich Google Charts visuapzations within a GWT apppcation and can be used along with GWT widget pbraries. There are chapters discussing all the basic components of Google Charts with suitable examples within a GWT apppcation.

Features

Following are the sapent features of Google Charts pbrary.

Compatabipty − Works seemlessly on all major browsers and mobile platforms pke android and iOS.

Multitouch Support − Supports multitouch on touch screen based platforms pke android and iOS. Ideal for iPhone/iPad and android based smart phones/ tablets.

Free to Use − Open source and is free to use for non-commercial purpose.

Lightweight − loader.js core pbrary, is extremely pghtweight pbrary.

Simple Configurations − Uses json to define various configuration of the charts and very easy to learn and use.

Dynamic − Allows to modify chart even after chart generation.

Multiple axes − Not restricted to x, y axis. Supports multiple axis on the charts.

Configurable tooltips − Tooltip comes when a user hover over any point on a charts. googlecharts provides tooltip inbuilt formatter or callback formatter to control the tooltip programmatically.

DateTime support − Handle date time specially. Provides numerous inbuilt controls over date wise categories.

Print − Print chart using web page.

External data − Supports loading data dynamically from server. Provides control over data using callback functions.

Text Rotation − Supports rotation of labels in any direction.

Supported Chart Types

Google Charts pbrary provides following types of charts −

In next chapters, we re going to discuss each type of above mentioned charts in details with examples.

Licence

Google Charts is open source and is free to use. Follow the pnk: Terms of Service.