ChartDirector 6.0 (ColdFusion Edition)

Cylinder Bar Shape




This example demonstrates bars of cylinder shape.

ChartDirector supports bars in cylindrical or arbitrary polygonal shapes. The shape are specified using BarLayer.setBarShape or BarLayer.setBarShape2. In this example, the cylindrical shape is illustrated.

See Shape Specification on how built-in and custom shapes are defined in ChartDirector.

Source Code Listing

[File: cfdemo/cylinderbar.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 data for the bar chart
data = Array(85, 156, 179.5, 211, 123);

// The labels for the bar chart
labels = Array("Mon", "Tue", "Wed", "Thu", "Fri");

// Create a XYChart object of size 400 x 240 pixels.
c = cd.XYChart(400, 240);

// Add a title to the chart using 14pt Times Bold Italic font
c.addTitle("Weekly Server Load", "Times New Roman Bold Italic", 14);

// Set the plotarea at (45, 40) and of 300 x 160 pixels in size. Use alternating light grey (f8f8f8)
// / white (ffffff) background.
c.setPlotArea(45, 40, 300, 160, "0xf8f8f8", "0xffffff");

// Add a multi-color bar chart layer
layer = c.addBarLayer3(data);

// Set layer to 3D with 10 pixels 3D depth
layer.set3D(10);

// Set bar shape to circular (cylinder)
layer.setBarShape(cd.CircleShape);

// Set the labels on the x axis.
c.xAxis().setLabels(labels);

// Add a title to the y axis
c.yAxis().setTitle("MBytes");

// Add a title to the x axis
c.xAxis().setTitle("Work Week 25");

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

// Include tool tip for the chart
imageMap1 = c.getHTMLImageMap("", "", "title='{xLabel}: {value} MBytes'");

</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Cylinder Bar Shape
</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>