This demonstration shows two charts connected to the same dataset. This small application is developed with ILOG Views Charts. You can edit the points, change the representation type, and launch a simulation that updates the data in real time.

The goal of this demonstration is to show:

• Polar and Cartesian charts
• Synchronized charts
• Real time update
• Automatic scales
• Point edition

Downloading the demonstration

Please download the ZIP file for Window 95/98/NT/2000.
Please download the ZIP file for Window XP
No additional files will be downloaded to your hard disk.

Running the demonstration
This demonstration runs on PCs under Windows 98, Windows NT, Windows 2000 or Windows XP.

How to use the demonstration
This demo runs on PC under Windows 95, Windows 98, Windows 2000, and Windows NT.

The application has seven controls:

	Allows to drag the points in the charts to change their values
	Uses a standard chart display
	Stacks the three charts
	Stacks the three charts and uses percentages for scales
	Launches a simulation that updates data in real time
	Controls the simulation speed

Technical highlights

Automatic scales
If you drag a point and assign it a large value, you will observe that the scales automatically update:
• The maximum value of the scale is updated
• The chart is zoomed out to reflect the scale change

The library uses a model view controller architecture(MVC) that automatically connects the components of a chart, such as data set, legend, axes, grid, and scales. In this demonstration, the scales have been configured to automatically react to a change in the range of data. This feature doesn't require specific coding from the developer.

Synchronized charts
If you drag a point on the Cartesian chart, you will observe that the point will also move on the polar chart, and vice versa. The same dataset is displayed in two charts, and the MVC architecture is used to synchronize the data set and the representations.

Multiple styles
In this demonstration, you can select tree representations: standard; stacked, stacked in percentage. This feature is obtained by changing  the displayer, an object that is responsible for drawing the charts. In the case of stacked charts, the selected displayer is able to create a composite representation from multiple datasets.

Real-time update
If you launch the simulation, you will see that the charts can reflect in real-time the changes in the dataset. ILOG Views Charts can display real-time charts and minimizes CPU usage for updating the display.

Interactions
This demonstration allows to change values in the dataset. Other out-of-the box interactions are available in ILOG Views Charts for zooming, scrolling, or tracking values.An extension protocol is also available to create custom interactions.