Donut Width

[JSP Version] jspdemo/donutwidth.jsp
<%@page import="ChartDirector.*, java.util.*" %>
<%!
// Function to create the demo charts
void createChart(WebChartViewer viewer, int chartIndex)
{
    // Determine the donut inner radius (as percentage of outer radius) based on input parameter
    int donutRadius = chartIndex * 25;

    // The data for the pie chart
    double[] data = {10, 10, 10, 10, 10};

    // The labels for the pie chart
    String[] labels = {"Marble", "Wood", "Granite", "Plastic", "Metal"};

    // Create a PieChart object of size 150 x 120 pixels, with a grey (EEEEEE) background, black
    // border and 1 pixel 3D border effect
    PieChart c = new PieChart(150, 120, 0xeeeeee, 0x000000, 1);

    // Set donut center at (75, 65) and the outer radius to 50 pixels. Inner radius is computed
    // according donutWidth
    c.setDonutSize(75, 60, 50, 50 * donutRadius / 100);

    // Add a title to show the donut width
    c.addTitle("Inner Radius = " + donutRadius + " %", "Arial", 10).setBackground(0xcccccc, 0);

    // Draw the pie in 3D
    c.set3D(12);

    // Set the pie data and the pie labels
    c.setData(data, labels);

    // Disable the sector labels by setting the color to Transparent
    c.setLabelStyle("", 8, Chart.Transparent);

    // Output the chart
    viewer.setChart(c, Chart.SVG);

    // Include tool tip for the chart
    viewer.setImageMap(c.getHTMLImageMap("", "", "title='{label}: {value}kg ({percent}%)'"));
}
%>
<%
// This example includes 5 charts
WebChartViewer[] viewers = new WebChartViewer[5];
for (int i = 0; i < viewers.length; ++i) {
    viewers[i] = new WebChartViewer(request, "chart" + i);
    createChart(viewers[i], i);
}
%>
<!DOCTYPE html>
<html>
<head>
    <title>Donut Width</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;">
        Donut Width
    </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 are the chart images ****** -->
    <%
        for (int i = 0; i < viewers.length; ++i) {
            out.write(viewers[i].renderHTML(response));
            out.write(" ");
        }
    %>
</body>
</html>