ChartDirector 7.0 (Java Edition)

Simple Area Chart




This example demonstrates the basic steps in creating area charts.

Source Code Listing

[JSP Version] jspdemo/simplearea.jsp
<%@page import="ChartDirector.*, java.util.*" %> <% // The data for the area chart double[] data = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, 35, 50, 66, 56, 48, 52, 65, 62}; // The labels for the area chart String[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"}; // Create a XYChart object of size 250 x 250 pixels XYChart c = new XYChart(250, 250); // Set the plotarea at (30, 20) and of size 200 x 200 pixels c.setPlotArea(30, 20, 200, 200); // Add an area chart layer using the given data c.addAreaLayer(data); // Set the labels on the x axis. c.xAxis().setLabels(labels); // Display 1 out of 3 labels on the x-axis. c.xAxis().setLabelStep(3); // Output the chart WebChartViewer viewer = new WebChartViewer(request, "chart1"); viewer.setChart(c, Chart.SVG); // Include tool tip for the chart viewer.setImageMap(c.getHTMLImageMap("", "", "title='Hour {xLabel}: Traffic {value} GBytes'")); %> <!DOCTYPE html> <html> <head> <title>Simple Area Chart</title> <!-- Include ChartDirector Javascript Library to support chart interactions --> <script type="text/javascript" src="cdjcv.js"></script> </head> <body style="margin:5px 0px 0px 5px"> <div style="font:bold 18pt verdana;"> Simple Area Chart </div> <hr style="border:solid 1px #000080; background:#000080" /> <div style="font:10pt verdana; margin-bottom:1.5em"> <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a> </div> <!-- ****** Here is the chart image ****** --> <%= viewer.renderHTML(response) %> </body> </html>