ChartDirector 7.0 (Java Edition)

Multi-Shape Bar Chart




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.

Source Code Listing

[JSP Version] jspdemo/multishapebar.jsp
<%@page import="ChartDirector.*, java.util.*" %> <% // The data for the bar chart double[] data0 = {100, 125, 245, 147}; double[] data1 = {85, 156, 179, 211}; double[] data2 = {97, 87, 56, 267}; String[] labels = {"1st Quarter", "2nd Quarter", "3rd Quarter", "4th Quarter"}; // Create a XYChart object of size 600 x 350 pixels XYChart c = new 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(Chart.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 BarLayer layer = c.addBarLayer2(Chart.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(Chart.StarShape(6), 0); // Set data set 2 to use a bar shapre of a 6-sided polygon layer.setBarShape(Chart.PolygonShape(6), 1); // Set data set 3 to use an X bar shape layer.setBarShape(Chart.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 WebChartViewer viewer = new WebChartViewer(request, "chart1"); viewer.setChart(c, Chart.SVG); // Include tool tip for the chart viewer.setImageMap(c.getHTMLImageMap("", "", "title='{dataSetName}: {xLabel} Revenue = {value} millions'")); %> <!DOCTYPE html> <html> <head> <title>Multi-Shape Bar 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;"> Multi-Shape Bar Chart </div> <hr style="border:solid 1px #000080; background:#000080" /> <div style="font:10pt verdana; margin-bottom:1.5em"> <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a> </div> <!-- ****** Here is the chart image ****** --> <%= viewer.renderHTML(response) %> </body> </html>