donutwidth.cfm
Back to Chart Graphics
<![CDATA[
<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;
}
// Function to create the demo charts
function createChart(img)
{
// Declare local variables
var donutRadius = 0;
var data = 0;
var labels = 0;
var c = 0;
var ret = 0;
// Determine the donut inner radius (as percentage of outer radius) based on
// input parameter
donutRadius = Int(img) * 25;
// The data for the pie chart
data = Array(10, 10, 10, 10, 10);
// The labels for the pie chart
labels = Array("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
c = cd.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, Int(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, cd.Transparent);
// Output the chart
ret = StructNew();
ret.imageURL = c.makeSession(GetPageContext(), "chart" & img);
// Include tool tip for the chart
ret.imageMap = c.getHTMLImageMap("", "",
"title='{label}: {value}kg ({percent}%)'");
return ret;
}
chart0 = createChart(0);
chart1 = createChart(1);
chart2 = createChart(2);
chart3 = createChart(3);
chart4 = createChart(4);
</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
Donut Width
</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?#chart0.imageURL#" usemap="##map0" border="0" />
<map name="map0">#chart0.imageMap#</map>
<img src="getchart.cfm?#chart1.imageURL#" usemap="##map1" border="0" />
<map name="map1">#chart1.imageMap#</map>
<img src="getchart.cfm?#chart2.imageURL#" usemap="##map2" border="0" />
<map name="map2">#chart2.imageMap#</map>
<img src="getchart.cfm?#chart3.imageURL#" usemap="##map3" border="0" />
<map name="map3">#chart3.imageMap#</map>
<img src="getchart.cfm?#chart4.imageURL#" usemap="##map4" border="0" />
<map name="map4">#chart4.imageMap#</map>
</cfoutput>
</body>
</html>
]]>