Drill-Down/Zooming Column Chart Servlet Example
Value of Portfolio

This example shows a Column Chart based on the value of a portfolio for a hypothetical client.  The graph is shown with dollar value versus month of the year.  The example shows the time-based zooming ability of EspressChart.  Furthermore, it also shows the ability of EspressChart to create hyper-links to specified Web locations.

The initial graph is from January to July.  You are able to select a different month range.  Click on a particular month to get all the days in that month.  Then, select the particular days that would be of interest.  Click on the "Get Chart" button for a new chart.  Note that the hyperlinks, when the individual day datapoints are clicked, would take you to the specific data for that day.