ChartDirector 7.0 (ASP/COM/VB Edition)

Icon Donut Chart




This example modifies the Icon Pie Chart example by using a semi-transparent donut instead of a pie, and using metallic background color.

Source Code Listing

[Web Version (in ASP)] aspdemo\icondonut.asp
<%@ language="vbscript" %> <% Set cd = CreateObject("ChartDirector.API") ' The data for the pie chart data = Array(72, 18, 15, 12) ' The depths for the sectors depths = Array(30, 20, 10, 10) ' The labels for the pie chart labels = Array("Sunny", "Cloudy", "Rainy", "Snowy") ' The icons for the sectors icons = Array("sun.png", "cloud.png", "rain.png", "snowy.png") ' Create a PieChart object of size 400 x 300 pixels Set c = cd.PieChart(400, 300) ' Use the semi-transparent palette for this chart Call c.setColors(cd.transparentPalette) ' Set the background to metallic light blue (CCFFFF), with a black border and 1 pixel 3D border ' effect, Call c.setBackground(cd.metalColor(&Hccccff), &H000000, 1) ' Set default directory for loading images from current script directory Call c.setSearchPath(Server.MapPath(".")) ' Set donut center at (200, 175), and outer/inner radii as 100/50 pixels Call c.setDonutSize(200, 175, 100, 50) ' Add a title box using 15pt Times Bold Italic font and metallic blue (8888FF) background color Call c.addTitle("Weather Profile in Wonderland", "Times New Roman Bold Italic", 15).setBackground( _ cd.metalColor(&H8888ff)) ' Set the pie data and the pie labels Call c.setData(data, labels) ' Add icons to the chart as a custom field Call c.addExtraField(icons) ' Configure the sector labels using CDML to include the icon images Call c.setLabelFormat( _ "<*block,valign=absmiddle*><*img={field0}*> <*block*>{label}<*br*>{percent}%<*/*><*/*>") ' Draw the pie in 3D with variable 3D depths Call c.set3D2(depths) ' Set the start angle to 225 degrees may improve layout when the depths of the sector are sorted in ' descending order, because it ensures the tallest sector is at the back. Call c.setStartAngle(225) ' Output the chart Set viewer = cd.WebChartViewer(Request, "chart1") Call viewer.setChart(c, cd.SVG) ' Include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("", "", "title='{label}: {value} days ({percent}%)'") %> <!DOCTYPE html> <html> <head> <title>Icon Donut Chart</title> <!-- Include ChartDirector Javascript Library to support chart interactions --> <script type="text/javascript" src="cdjcv.js"></script> </head> <body style="margin:5px 0px 0px 5px"> <div style="font:bold 18pt verdana;"> Icon Donut Chart </div> <hr style="border:solid 1px #000080; background:#000080" /> <div style="font:10pt verdana; margin-bottom:1.5em"> <a href="viewsource.asp?file=<%= Request("SCRIPT_NAME") %>">View Chart Source Code</a> </div> <!-- ****** Here is the chart image ****** --> <%= viewer.renderHTML() %> </body> </html>

[Windows Version (in Visual Basic)] vbdemo\icondonut.cls
Public Sub createChart(viewer As Object, chartIndex As Integer) Dim cd As New ChartDirector.API ' The data for the pie chart Dim data() data = Array(72, 18, 15, 12) ' The depths for the sectors Dim depths() depths = Array(30, 20, 10, 10) ' The labels for the pie chart Dim labels() labels = Array("Sunny", "Cloudy", "Rainy", "Snowy") ' The icons for the sectors Dim icons() icons = Array("sun.png", "cloud.png", "rain.png", "snowy.png") ' Create a PieChart object of size 400 x 300 pixels Dim c As PieChart Set c = cd.PieChart(400, 300) ' Use the semi-transparent palette for this chart Call c.setColors(cd.transparentPalette) ' Set the background to metallic light blue (CCFFFF), with a black border and 1 pixel 3D border ' effect, Call c.setBackground(cd.metalColor(&Hccccff), &H000000, 1) ' Set donut center at (200, 175), and outer/inner radii as 100/50 pixels Call c.setDonutSize(200, 175, 100, 50) ' Add a title box using 15pt Times Bold Italic font and metallic blue (8888FF) background color Call c.addTitle("Weather Profile in Wonderland", "timesbi.ttf", 15).setBackground( _ cd.metalColor(&H8888ff)) ' Set the pie data and the pie labels Call c.setData(data, labels) ' Add icons to the chart as a custom field Call c.addExtraField(icons) ' Configure the sector labels using CDML to include the icon images Call c.setLabelFormat( _ "<*block,valign=absmiddle*><*img={field0}*> <*block*>{label}<*br*>{percent}%<*/*><*/*>") ' Draw the pie in 3D with variable 3D depths Call c.set3D2(depths) ' Set the start angle to 225 degrees may improve layout when the depths of the sector are sorted ' in descending order, because it ensures the tallest sector is at the back. Call c.setStartAngle(225) ' Output the chart Set viewer.Picture = c.makePicture() 'include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", _ "title='{label}: {value} days ({percent}%)'") End Sub