ChartDirector 7.0 (Java Edition)

Icon Pie Chart (1)




This example demonstrates using CDML and Parameter Substitution and Formatting to include icons in sector labels. It also demonstrates gradient background color, glass shading effect for the title and rounded corners for the chart frame.

Source Code Listing

[JSP Version] jspdemo/iconpie.jsp
<%@page import="ChartDirector.*, java.util.*" %> <% // The data for the pie chart double[] data = {72, 18, 15, 12}; // The depths for the sectors double[] depths = {30, 20, 10, 10}; // The labels for the pie chart String[] labels = {"Sunny", "Cloudy", "Rainy", "Snowy"}; // The icons for the sectors String[] icons = {"sun.png", "cloud.png", "rain.png", "snowy.png"}; // Create a PieChart object of size 400 x 310 pixels, with a blue (CCCCFF) vertical metal gradient // background, black border, 1 pixel 3D border effect and rounded corners PieChart c = new PieChart(400, 310, Chart.metalColor(0xccccff, 0), 0x000000, 1); c.setRoundedFrame(); //Set search path to current JSP directory for loading icon images c.setSearchPath(getServletConfig().getServletContext(), request); // Set the center of the pie at (200, 180) and the radius to 100 pixels c.setPieSize(200, 180, 100); // Add a title box using 15pt Times Bold Italic font, on a blue (CCCCFF) background with glass // effect c.addTitle("Weather Profile in Wonderland", "Times New Roman Bold Italic", 15).setBackground( 0xccccff, 0x000000, Chart.glassEffect()); // Set the pie data and the pie labels c.setData(data, labels); // Add icons to the chart as a custom field c.addExtraField(icons); // Configure the sector labels using CDML to include the icon images c.setLabelFormat("<*block,valign=absmiddle*><*img={field0}*> <*block*>{label}\n{percent}%<*/*><*/*>" ); // Draw the pie in 3D with variable 3D depths c.set3D2(depths); // Set the start angle to 225 degrees may improve layout when the depths of the sector are sorted in // descending order, because it ensures the tallest sector is at the back. c.setStartAngle(225); // 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='{label}: {value} days ({percent}%)'")); %> <!DOCTYPE html> <html> <head> <title>Icon Pie Chart (1)</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;"> Icon Pie Chart (1) </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>