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This example demonstrates a multi-bar chart in which each data set has a different bar shape.
The bar shapes are specified using BarLayer.setBarShape. See Shape Specification on how built-in and custom shapes are defined in ChartDirector.
ChartDirector 6.0 (ColdFusion Edition)
Multi-Shape Bar Chart
Source Code Listing
<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 data0 = Array(100, 125, 245, 147); data1 = Array(85, 156, 179, 211); data2 = Array(97, 87, 56, 267); labels = Array("1st Quarter", "2nd Quarter", "3rd Quarter", "4th Quarter"); // Create a XYChart object of size 600 x 350 pixels c = cd.XYChart(600, 350); // Add a title to the chart using 14pt Arial Bold Italic font c.addTitle("Annual Product Revenue", "Arial Bold Italic", 14); // Set the plot area at (50, 60) and of size 500 x 240. Use two alternative background colors // (f8f8f8 and ffffff) c.setPlotArea(50, 60, 500, 240, "0xf8f8f8", "0xffffff"); // Add a legend box at (55, 22) using horizontal layout, with transparent background c.addLegend(55, 22, False).setBackground(cd.Transparent); // Set the x axis labels c.xAxis().setLabels(labels); // Draw the ticks between label positions (instead of at label positions) c.xAxis().setTickOffset(0.5); // Add a multi-bar layer with 3 data sets and 9 pixels 3D depth layer = c.addBarLayer2(cd.Side, 9); layer.addDataSet(data0, -1, "Product A"); layer.addDataSet(data1, -1, "Product B"); layer.addDataSet(data2, -1, "Product C"); // Set data set 1 to use a bar shape of a 6-pointed star layer.setBarShape(cd.StarShape(6), 0); // Set data set 2 to use a bar shapre of a 6-sided polygon layer.setBarShape(cd.PolygonShape(6), 1); // Set data set 3 to use an X bar shape layer.setBarShape(cd.Cross2Shape(), 2); // Add a title to the y-axis c.yAxis().setTitle("Revenue (USD in millions)"); // Add a title to the x axis c.xAxis().setTitle("Year 2005"); // Output the chart chart1URL = c.makeSession(GetPageContext(), "chart1"); // Include tool tip for the chart imageMap1 = c.getHTMLImageMap("", "", "title='{dataSetName}: {xLabel} Revenue = {value} millions'"); </cfscript> <html> <body style="margin:5px 0px 0px 5px"> <div style="font-size:18pt; font-family:verdana; font-weight:bold"> Multi-Shape Bar Chart </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> |