ChartDirector 7.0 (Java Edition)

Stacked Radar Chart




This example demonstrates a stacked radar chart.

This example is similar to the previous Multi-Radar Chart example, except the data are stacked before passing to ChartDirector.

Source Code Listing

[JSP Version] jspdemo/stackradar.jsp
<%@page import="ChartDirector.*, java.util.*" %> <% // The data for the chart double[] data0 = {100, 100, 100, 100, 100}; double[] data1 = {90, 85, 85, 80, 70}; double[] data2 = {80, 65, 65, 75, 45}; // The labels for the chart String[] labels = {"Population<*br*><*font=Arial*>6 millions", "GDP<*br*><*font=Arial*>120 billions", "Export<*br*><*font=Arial*>25 billions", "Import<*br*><*font=Arial*>24 billions", "Investments<*br*><*font=Arial*>20 billions"}; // Create a PolarChart object of size 480 x 460 pixels. Set background color to silver, with 1 pixel // 3D border effect PolarChart c = new PolarChart(480, 460, Chart.silverColor(), 0x000000, 1); // Add a title to the chart using 15pt Times Bold Italic font. The title text is white (ffffff) on a // deep green (008000) background c.addTitle("Economic Growth", "Times New Roman Bold Italic", 15, 0xffffff).setBackground(0x008000); // Set plot area center at (240, 270), with 150 pixels radius c.setPlotArea(240, 270, 150); // Use 1 pixel width semi-transparent black (c0000000) lines as grid lines c.setGridColor(0xc0000000, 1, 0xc0000000, 1); // Add a legend box at top-center of plot area (240, 35) using horizontal layout. Use 10pt Arial // Bold font, with silver background and 1 pixel 3D border effect. LegendBox b = c.addLegend(240, 35, false, "Arial Bold", 10); b.setAlignment(Chart.TopCenter); b.setBackground(Chart.silverColor(), Chart.Transparent, 1); // Add area layers of different colors to represent the data c.addAreaLayer(data0, 0xcc8880, "Year 2004"); c.addAreaLayer(data1, 0xffd080, "Year 1994"); c.addAreaLayer(data2, 0xa0bce0, "Year 1984"); // Set the labels to the angular axis as spokes. c.angularAxis().setLabels(labels); // Set radial axis from 0 - 100 with a tick every 20 units c.radialAxis().setLinearScale(0, 100, 20); // Just show the radial axis as a grid line. Hide the axis labels by setting the label color to // Transparent c.radialAxis().setColors(0xc0000000, Chart.Transparent); // 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='Current {label}: {value}% in {dataSetName}'")); %> <!DOCTYPE html> <html> <head> <title>Stacked Radar 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;"> Stacked Radar 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>