posnegbar.cfm
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<![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;
}
// The data for the bar chart
data = Array(-6.3, 2.3, 0.7, -3.4, 2.2, -2.9, -0.1, -0.1, 3.3, 6.2, 4.3, 1.6);
// The labels for the bar chart
labels = Array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct",
"Nov", "Dec");
// Create a XYChart object of size 500 x 320 pixels
c = cd.XYChart(500, 320);
// Add a title to the chart using Arial Bold Italic font
c.addTitle("Productivity Change - Year 2005", "Arial Bold Italic");
// Set the plotarea at (50, 30) and of size 400 x 250 pixels
c.setPlotArea(50, 30, 400, 250);
// Add a bar layer to the chart using the Overlay data combine method
layer = c.addBarLayer2(cd.Overlay);
// Select positive data and add it as data set with blue (6666ff) color
layer.addDataSet(cd.ArrayMath(data).selectGEZ(Array(), cd.NoValue).result(),
"0x6666ff");
// Select negative data and add it as data set with orange (ff6600) color
layer.addDataSet(cd.ArrayMath(data).selectLTZ(Array(), cd.NoValue).result(),
"0xff6600");
// Add labels to the top of the bar using 8 pt Arial Bold font. The font color is
// configured to be red (0xcc3300) below zero, and blue (0x3333ff) above zero.
layer.setAggregateLabelStyle("Arial Bold", 8, layer.yZoneColor(0, "0xcc3300",
"0x3333ff"));
// Set the labels on the x axis and use Arial Bold as the label font
c.xAxis().setLabels(labels).setFontStyle("Arial Bold");
// Draw the y axis on the right of the plot area
c.setYAxisOnRight(True);
// Use Arial Bold as the y axis label font
c.yAxis().setLabelStyle("Arial Bold");
// Add a title to the y axis
c.yAxis().setTitle("Percentage");
// Add a light blue (0xccccff) zone for positive part of the plot area
c.yAxis().addZone(0, 9999, "0xccccff");
// Add a pink (0xffffcc) zone for negative part of the plot area
c.yAxis().addZone(-9999, 0, "0xffcccc");
// Output the chart
chart1URL = c.makeSession(GetPageContext(), "chart1");
// Include tool tip for the chart
imageMap1 = c.getHTMLImageMap("", "", "title='{xLabel}: {value}%'");
</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
Positive Negative Bars
</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>
]]>