Polar Spline Chart

[File: cfdemo/polarspline.cfm]
<cfscript>

// ChartDirector for ColdFusion API Access Point
cd = CreateObject("java", "ChartDirector.CFChart");

// A utility to allow us to create arrays with data in one line of code
function Array() {
    var result = ArrayNew(1);
    var i = 0;
    for (i = 1; i LTE ArrayLen(arguments); i = i + 1)
        result[i] = arguments[i];
    return result;
}

// The data for the chart
data0 = Array(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);
angles0 = Array(0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255,
    270, 285, 300, 315, 330, 345);

data1 = Array(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);
angles1 = Array(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
c = cd.PolarChart(460, 460);

// Add a title to the chart at the top left corner using 15pt Arial Bold Italic font
c.addTitle2(cd.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(cd.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)
layer1 = c.addSplineLineLayer(data1, "0x0000ff", "Below 100MHz");
layer1.setAngles(angles1);

// Set the line width to 3 pixels
layer1.setLineWidth(3);

// Output the chart
chart1URL = c.makeSession(GetPageContext(), "chart1");

// Include tool tip for the chart
imageMap1 = c.getHTMLImageMap("", "", "title='{dataSetName} EM field at {angle} deg: {value} Watt'")
    ;

</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Polar Spline Chart
</div>
<hr style="border:solid 1px #000080" />
<cfoutput>
<div style="font-size:9pt; font-family:verdana; margin-bottom:1.5em">
    <a href='viewsource.cfm?file=#CGI.SCRIPT_NAME#'>View Source Code</a>
</div>
<img src="getchart.cfm?#chart1URL#" usemap="##map1" border="0" />
<map name="map1">#imageMap1#</map>
</cfoutput>
</body>
</html>