<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 chart
dataY = Array(1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1);
dataX = Array(CreateDateTime(2008, 7, 1, 0, 0, 0), CreateDateTime(2008, 7, 1, 2, 17,
2), CreateDateTime(2008, 7, 1, 8, 5, 30), CreateDateTime(2008, 7, 1, 10, 54, 10),
CreateDateTime(2008, 7, 1, 15, 40, 0), CreateDateTime(2008, 7, 1, 18, 22, 20),
CreateDateTime(2008, 7, 1, 22, 17, 14), CreateDateTime(2008, 7, 2, 2, 55, 50),
CreateDateTime(2008, 7, 2, 8, 17, 14), CreateDateTime(2008, 7, 2, 11, 55, 50),
CreateDateTime(2008, 7, 2, 13, 17, 14), CreateDateTime(2008, 7, 2, 17, 55, 50),
CreateDateTime(2008, 7, 2, 20, 17, 14), CreateDateTime(2008, 7, 3, 0, 0, 0));
// In this example, we only use position 1, 3, 5 for the data series. Positions 0, 2,
// 4, 6 are empty and serve as gaps.
labels = Array("", "ON Only Filling", "",
"<*font,color=cc2200*>ON<*/font*> / <*font,color=00aa22*>OFF<*/font*> Filling",
"", "Logic Line", "");
// Create a XYChart object of size 600 x 180 pixels
c = cd.XYChart(600, 180);
// Add a title to the chart using 10 points Arial Bold font. Set top/bottom margins
// to 12 pixels.
title = c.addTitle("Binary Data Series Demonstration", "Arial Bold", 10);
// Tentatively set the plotarea at (100, 30) and of size 470 x 120 pixels. Use
// transparent border. Use grey (888888) solid line and light grey (ccccc) dotted
// line as major and minor vertical grid lines.
c.setPlotArea(100, 30, 470, 120, -1, -1, cd.Transparent).setGridColor(cd.Transparent,
"0x888888", cd.Transparent, c.dashLineColor("0xcccccc", cd.DotLine));
// Set axes to transparent
c.xAxis().setColors(cd.Transparent);
c.yAxis().setColors(cd.Transparent);
// Set the y axis labels
c.yAxis().setLabels(labels);
// Set y-axis label style to 8pts Arial Bold
c.yAxis().setLabelStyle("Arial Bold", 8);
// Set x-axis major and minor tick density to 50 and 5 pixels. ChartDirector
// auto-scaling will use this as the guideline when putting ticks on the x-axis.
c.xAxis().setTickDensity(50, 5);
// Use "<*font=Arial Bold*>{value|mmm dd}" for the first label of an hour, and
// "{value|hh:nn}" for all other labels.
c.xAxis().setMultiFormat(cd.StartOfDayFilter(), "<*font=Arial Bold*>{value|mmm dd}",
cd.AllPassFilter(), "{value|hh:nn}");
//
// A Logic Line can be achieved using a StepLineLayer in ChartDirector
//
// Shift the data by 4.5, so instead of 0 - 1, it is now 4.5 to 5.5, or fluctuate
// around the y = 5 (Logic Line label) position.
shiftedLine0 = cd.ArrayMath(dataY).add(4.5).result();
// Add step lines using the original and the reversed data
layer0 = c.addStepLineLayer(shiftedLine0, 255);
layer0.setXData(dataX);
//
// To perform ON/OFF filling, we draw the logic line, and its reverse, and fill the
// region in between
//
// Shift the data by 2.5, so instead of 0 - 1, it is now 2.5 to 3.5, or fluctuate
// around the y = 3 (ON/OFF Filing label) position.
shiftedLine1 = cd.ArrayMath(dataY).add(2.5).result();
// Reverse the data, so the 0 becomes 1 and 1 becomes 0, and shift it as well.
reverseShiftedLine1 = cd.ArrayMath(dataY).mul(-1).add(3.5).result();
// Add step lines using the original and the reversed data
layer1 = c.addStepLineLayer(shiftedLine1, cd.Transparent);
layer1.addDataSet(reverseShiftedLine1, cd.Transparent);
layer1.setXData(dataX);
// Fill the region between the two step lines with green (00aa22) or red (cc2200),
// depending on whether the original or the reserve is higher.
c.addInterLineLayer(layer1.getLine(0), layer1.getLine(1), "0x00aa22", "0xcc2200");
//
// The ON Only filling is the same as ON/OFF filling, except the OFF filling color is
// transparent
//
// Shift the data by 0.5, so instead of 0 - 1, it is now 0.5 to 1.5, or fluctuate
// around the y = 1 (ON Only Filing label) position.
shiftedLine2 = cd.ArrayMath(dataY).add(0.5).result();
// Reverse the data, so the 0 becomes 1 and 1 becomes 0, and shift it as well.
reverseShiftedLine2 = cd.ArrayMath(dataY).mul(-1).add(1.5).result();
// Add step lines using the original and the reversed data
layer2 = c.addStepLineLayer(shiftedLine2, cd.Transparent);
layer2.addDataSet(reverseShiftedLine2, cd.Transparent);
layer2.setXData(dataX);
// Fill the region between the two step lines with green (00aa22) or transparent,
// depending on whether the original or the reserve is higher.
c.addInterLineLayer(layer2.getLine(0), layer2.getLine(1), "0x00aa22", cd.Transparent)
;
// Adjust the plot area size, such that the bounding box (inclusive of axes) is 10
// pixels from the left edge, 10 pixels below the title, 30 pixels from the right
// edge, and 10 pixels above the bottom edge.
c.packPlotArea(10, title.getHeight() + 10, c.getWidth() - 30, c.getHeight() - 10);
// Output the chart
chart1URL = c.makeSession(GetPageContext(), "chart1");
</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
Binary Data Series
</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> |