ChartDirector 7.0 (Java Edition)
Stacked Radar Chart
Source Code Listing
<%@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>