Polar Spline Chart

[JSP Version] jspdemo/polarspline.jsp
<%@page import="ChartDirector.*, java.util.*" %>
<%
// The data for the chart
double[] data0 = {5.1, 2.6, 1.5, 2.2, 5.1, 4.3, 4.0, 9.0, 1.7, 8.8, 9.9, 9.5, 9.4, 1.8, 2.1, 2.3,
    3.5, 7.7, 8.8, 6.1, 5.0, 3.1, 6.0, 4.3};
double[] angles0 = {0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240,
    255, 270, 285, 300, 315, 330, 345};

double[] data1 = {8.1, 2.5, 5, 5.2, 6.5, 8.5, 9, 7.6, 8.7, 6.4, 5.5, 5.4, 3.0, 8.7, 7.1, 8.8, 7.9,
    2.2, 5.0, 4.0, 1.5, 7.5, 8.3, 9.0};
double[] angles1 = {0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240,
    255, 270, 285, 300, 315, 330, 345};

// Create a PolarChart object of size 460 x 460 pixels
PolarChart c = new PolarChart(460, 460);

// Add a title to the chart at the top left corner using 15pt Arial Bold Italic font
c.addTitle2(Chart.TopLeft, "<*underline=2*>EM Field Strength", "Arial Bold Italic", 15);

// Set center of plot area at (230, 240) with radius 180 pixels
c.setPlotArea(230, 240, 180);

// Set the grid style to circular grid
c.setGridStyle(false);

// Add a legend box at the top right corner of the chart using 9pt Arial Bold font
c.addLegend(459, 0, true, "Arial Bold", 9).setAlignment(Chart.TopRight);

// Set angular axis as 0 - 360, with a spoke every 30 units
c.angularAxis().setLinearScale(0, 360, 30);

// Add a red (0xff9999) spline area layer to the chart using (data0, angles0)
c.addSplineAreaLayer(data0, 0xff9999, "Above 100MHz").setAngles(angles0);

// Add a blue (0xff) spline line layer to the chart using (data1, angle1)
PolarSplineLineLayer layer1 = c.addSplineLineLayer(data1, 0x0000ff, "Below 100MHz");
layer1.setAngles(angles1);

// Set the line width to 3 pixels
layer1.setLineWidth(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='{dataSetName} EM field at {angle} deg: {value} Watt'"));
%>
<!DOCTYPE html>
<html>
<head>
    <title>Polar Spline 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;">
        Polar Spline 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>