ChartDirector 7.0 (Java Edition)

Multi-Color Bar Chart (1)




This example is the same as Simple Bar Chart (2), except that XYChart.addBarLayer3 is used to add a multi-color bar layer instead of a regular bar layer.

Source Code Listing

[JSP Version] jspdemo/colorbar.jsp
<%@page import="ChartDirector.*, java.util.*" %> <% // The data for the bar chart double[] data = {85, 156, 179, 211, 123, 189, 166}; // The labels for the bar chart String[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"}; // The colors for the bars int[] colors = {0x5588bb, 0x66bbbb, 0xaa6644, 0x99bb55, 0xee9944, 0x444466, 0xbb5555}; // Create a XYChart object of size 600 x 400 pixels XYChart c = new XYChart(600, 400); // Add a title box using grey (0x555555) 24pt Arial font c.addTitle("Multi-Color Bar Chart", "Arial", 24, 0x555555); // Set the plotarea at (70, 60) and of size 500 x 300 pixels, with transparent background and border // and light grey (0xcccccc) horizontal grid lines c.setPlotArea(70, 60, 500, 300, Chart.Transparent, -1, Chart.Transparent, 0xcccccc); // Set the x and y axis stems to transparent and the label font to 12pt Arial c.xAxis().setColors(Chart.Transparent); c.yAxis().setColors(Chart.Transparent); c.xAxis().setLabelStyle("Arial", 12); c.yAxis().setLabelStyle("Arial", 12); // Add a multi-color bar chart layer with transparent border using the given data c.addBarLayer3(data, colors).setBorderColor(Chart.Transparent); // Set the labels on the x axis. c.xAxis().setLabels(labels); // For the automatic y-axis labels, set the minimum spacing to 40 pixels. c.yAxis().setTickDensity(40); // Add a title to the y axis using dark grey (0x555555) 14pt Arial font c.yAxis().setTitle("Y-Axis Title Placeholder", "Arial", 14, 0x555555); // 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='{xLabel}: ${value}M'")); %> <!DOCTYPE html> <html> <head> <title>Multi-Color Bar Chart (1)</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-Color Bar Chart (1) </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>