<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 line chart
data0 = Array(70, 73, 80, 90, 95, 93, 82, 77, 82, 101, 111, 115);
data1 = Array(90, 96, 89, 77, 82, 96, 109, 109, 99, 108, 96, 91);
data2 = Array(58, 34, 25, 49, 64, 10, 16, 40, 25, 49, 40, 22);
// The labels for the line chart
labels = Array("2008-01", "2008-02", "2008-03", "2008-04", "2008-05", "2008-06",
"2008-07", "2008-08", "2008-09", "2008-10", "2008-11", "2008-12");
// Create a XYChart object of size 450 x 450 pixels
c = cd.XYChart(450, 450);
// Add a title to the chart using 15 pts Arial Italic font.
title = c.addTitle("Inter-line Coloring", "Arial Italic", 15);
// Add a legend box where the top-center is anchored to the horizontal center of the
// chart, just under the title. Use horizontal layout and 10 points Arial Bold font,
// and transparent background and border. Use line style legend key.
legendBox = c.addLegend(c.getWidth() / 2, title.getHeight(), False,
"Arial Bold Italic", 10);
legendBox.setBackground(cd.Transparent, cd.Transparent);
legendBox.setAlignment(cd.TopCenter);
legendBox.setLineStyleKey();
// Tentatively set the plotarea at (70, 65) and of (chart_width - 100) x
// (chart_height - 110) in size. Use light grey (c0c0c0) border and horizontal and
// vertical grid lines.
plotArea = c.setPlotArea(70, 65, c.getWidth() - 100, c.getHeight() - 110, -1, -1,
"0xc0c0c0", "0xc0c0c0", -1);
// Add a title to the y axis using 12 pts Arial Bold Italic font
c.yAxis().setTitle("Axis Title Placeholder", "Arial Bold Italic", 12);
// Add a title to the x axis using 12 pts Arial Bold Italic font
c.xAxis().setTitle("Axis Title Placeholder", "Arial Bold Italic", 12);
// Set the axes line width to 3 pixels
c.xAxis().setWidth(3);
c.yAxis().setWidth(3);
// Set the labels on the x axis.
c.xAxis().setLabels(labels);
// Use 8 points Arial rotated by 90 degrees as the x-axis label font
c.xAxis().setLabelStyle("Arial", 8, cd.TextColor, 90);
// Add a spline curve to the chart
layer0 = c.addSplineLayer(data0, "0xff0000", "Data Set 0");
layer0.setLineWidth(2);
// Add a normal line to the chart
layer1 = c.addLineLayer(data1, "0x008800", "Data Set 1");
layer1.setLineWidth(2);
// Color the region between the above spline curve and normal line. Use the
// semi-transparent red (80ff000000) if the spline curve is higher than the normal
// line, otherwise use semi-transparent green (80008800)
c.addInterLineLayer(layer0.getLine(), layer1.getLine(), "0x80ff0000", "0x80008800");
// Add another normal line to the chart
layer2 = c.addLineLayer(data2, "0x0000ff", "Data Set 2");
layer2.setLineWidth(2);
// Add a horizontal mark line to the chart at y = 40
mark = c.yAxis().addMark(40, -1, "Threshold");
mark.setLineWidth(2);
// Set the mark line to purple (880088) dash line. Use white (ffffff) for the mark
// label.
mark.setMarkColor(c.dashLineColor("0x880088"), "0xffffff");
// Put the mark label at the left side of the mark, with a purple (880088)
// background.
mark.setAlignment(cd.Left);
mark.setBackground("0x880088");
// Color the region between the above normal line and mark line. Use the
// semi-transparent blue (800000ff) if the normal line is higher than the mark line,
// otherwise use semi-transparent purple (80880088)
c.addInterLineLayer(layer2.getLine(), mark.getLine(), "0x800000ff", "0x80880088");
// Layout the legend box, so we can get its height
c.layoutLegend();
// Adjust the plot area size, such that the bounding box (inclusive of axes) is 10
// pixels from the left edge, just under the legend box, 25 pixels from the right
// edge, and 10 pixels from the bottom edge.
c.packPlotArea(10, legendBox.getTopY() + legendBox.getHeight(), c.getWidth() - 25,
c.getHeight() - 10);
// After determining the exact plot area position, we may adjust the legend box and
// the title positions so that they are centered relative to the plot area (instead
// of the chart)
legendBox.setPos(plotArea.getLeftX() + (plotArea.getWidth() - legendBox.getWidth()) /
2, legendBox.getTopY());
title.setPos(plotArea.getLeftX() + (plotArea.getWidth() - title.getWidth()) / 2,
title.getTopY());
// Output the chart
chart1URL = c.makeSession(GetPageContext(), "chart1");
// Include tool tip for the chart
imageMap1 = c.getHTMLImageMap("", "", "title='{dataSetName} in {xLabel}: {value}'");
</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
Inter-Line Coloring
</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> |