Color Vertical Linear Meters

[File: cfdemo/colorvlinearmeter.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;
}

// Function to create the demo charts
function createChart(chartIndex)
{
    // Declare local variables
    var value = 0;
    var bgColor = 0;
    var borderColor = 0;
    var m = 0;
    var smoothColorScale = 0;
    var stepColorScale = 0;
    var highLowColorScale = 0;

    // The value to display on the meter
    value = 74.25;

    // The background and border colors of the meters
    bgColor = Array("0xbbddff", "0xccffcc", "0xffccff", "0xffffaa", "0xffdddd", "0xeeeeee");
    borderColor = Array("0x000088", "0x006600", "0x6600aa", "0xee6600", "0x880000", "0x666666");

    // Create a LinearMeter object of size 70 x 260 pixels with a 3-pixel thick rounded frame
    m = cd.LinearMeter(70, 260, bgColor[chartIndex + 1], borderColor[chartIndex + 1]);
    m.setRoundedFrame(cd.Transparent);
    m.setThickFrame(3);

    // Set the scale region top-left corner at (28, 30), with size of 20 x 200 pixels. The scale
    // labels are located on the left (default - implies vertical meter)
    m.setMeter(28, 30, 20, 200);

    // Set meter scale from 0 - 100, with a tick every 10 units
    m.setScale(0, 100, 10);

    // Demostrate different types of color scales and putting them at different positions
    smoothColorScale = Array(0, "0x6666ff", 25, "0x00bbbb", 50, "0x00ff00", 75, "0xffff00", 100,
        "0xff0000");
    stepColorScale = Array(0, "0x33ff33", 50, "0xffff33", 80, "0xff3333", 100);
    highLowColorScale = Array(0, "0x6666ff", 70, cd.Transparent, 100, "0xff0000");

    if (chartIndex EQ 0) {
        // Add the smooth color scale at the default position
        m.addColorScale(smoothColorScale);
    } else if (chartIndex EQ 1) {
        // Add the step color scale at the default position
        m.addColorScale(stepColorScale);
    } else if (chartIndex EQ 2) {
        // Add the high low scale at the default position
        m.addColorScale(highLowColorScale);
    } else if (chartIndex EQ 3) {
        // Add the smooth color scale starting at x = 28 (left of scale) with zero width and ending
        // at x = 28 with 20 pixels width
        m.addColorScale(smoothColorScale, 28, 0, 28, 20);
    } else if (chartIndex EQ 4) {
        // Add the smooth color scale starting at x = 38 (center of scale) with zero width and
        // ending at x = 28 with 20 pixels width
        m.addColorScale(smoothColorScale, 38, 0, 28, 20);
    } else {
        // Add the smooth color scale starting at x = 48 (right of scale) with zero width and ending
        // at x = 28 with 20 pixels width
        m.addColorScale(smoothColorScale, 48, 0, 28, 20);
    }

    // Add a blue (0x0000cc) pointer at the specified value
    m.addPointer(value, "0x0000cc");

    // Add a title using white (0xffffff) 8pt Arial Bold font with a border color background
    m.addTitle("Temp C", "Arial Bold", 8, "0xffffff").setBackground(borderColor[chartIndex + 1]);

    // Add a bottom title using white (0xffffff) 8pt Arial Bold font with a border color background
    // to display the value
    m.addTitle2(cd.Bottom, m.formatValue(value, "2"), "Arial Bold", 8, "0xffffff").setBackground(
        borderColor[chartIndex + 1]);

    // Output the chart
    return m.makeSession(GetPageContext(), "chart" & chartIndex);
}

chart0URL = createChart(0);
chart1URL = createChart(1);
chart2URL = createChart(2);
chart3URL = createChart(3);
chart4URL = createChart(4);
chart5URL = createChart(5);

</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Color Vertical Linear Meters
</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?#chart0URL#" />
<img src="getchart.cfm?#chart1URL#" />
<img src="getchart.cfm?#chart2URL#" />
<img src="getchart.cfm?#chart3URL#" />
<img src="getchart.cfm?#chart4URL#" />
<img src="getchart.cfm?#chart5URL#" />
</cfoutput>
</body>
</html>