Linear Zone Meter

[File: cfdemo/linearzonemeter.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 value to display on the meter
value = 85;

// Create an LinearMeter object of size 210 x 45 pixels, using silver background with a 2 pixel
// black 3D depressed border.
m = cd.LinearMeter(210, 45, cd.silverColor(), 0, -2);

// Set the scale region top-left corner at (5, 5), with size of 200 x 20 pixels. The scale labels
// are located on the bottom (implies horizontal meter)
m.setMeter(5, 5, 200, 20, cd.Bottom);

// Set meter scale from 0 - 100
m.setScale(0, 100);

// Add a title at the bottom of the meter with a 1 pixel raised 3D border
m.addTitle2(cd.Bottom, "Battery Level", "Arial Bold", 8).setBackground(cd.Transparent, -1, 1);

// Set 3 zones of different colors to represent Good/Weak/Bad data ranges
m.addZone(50, 100, "0x99ff99", "Good");
m.addZone(20, 50, "0xffff66", "Weak");
m.addZone(0, 20, "0xffcccc", "Bad");

// Add empty labels (just need the ticks) at 0/20/50/80 as separators for zones
m.addLabel(0, " ");
m.addLabel(20, " ");
m.addLabel(50, " ");
m.addLabel(100, " ");

// Add a semi-transparent blue (800000ff) pointer at the specified value, using triangular pointer
// shape
m.addPointer(value, "0x800000ff").setShape(cd.TriangularPointer);

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

</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Linear Zone Meter
</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#" />
</cfoutput>
</body>
</html>