ChartDirector 7.0 (Java Edition)

Borderless Bar Chart




This example demonstrates a horizontal bar chart with no axes, grid lines or and plot area border. It also demonstrates using gradient colors for the bars, and a number of other ChartDirector features.

The key features demonstrated in this example are:

Source Code Listing

[JSP Version] jspdemo/hbar.jsp
<%@page import="ChartDirector.*, java.util.*" %> <% // The data for the bar chart double[] data = {3.9, 8.1, 10.9, 14.2, 18.1, 19.0, 21.2, 23.2, 25.7, 36}; // The labels for the bar chart String[] labels = {"Bastic Group", "Simpa", "YG Super", "CID", "Giga Tech", "Indo Digital", "Supreme", "Electech", "THP Thunder", "Flash Light"}; // Create a XYChart object of size 600 x 250 pixels XYChart c = new XYChart(600, 250); // Add a title to the chart using Arial Bold Italic font c.addTitle("Revenue Estimation - Year 2002", "Arial Bold Italic"); // Set the plotarea at (100, 30) and of size 400 x 200 pixels. Set the plotarea border, background // and grid lines to Transparent c.setPlotArea(100, 30, 400, 200, Chart.Transparent, Chart.Transparent, Chart.Transparent, Chart.Transparent, Chart.Transparent); // Add a bar chart layer using the given data. Use a gradient color for the bars, where the gradient // is from dark green (0x008000) to white (0xffffff) BarLayer layer = c.addBarLayer(data, c.gradientColor(100, 0, 500, 0, 0x008000, 0xffffff)); // Swap the axis so that the bars are drawn horizontally c.swapXY(true); // Set the bar gap to 10% layer.setBarGap(0.1); // Use the format "US$ xxx millions" as the bar label layer.setAggregateLabelFormat("US$ {value} millions"); // Set the bar label font to 10pt Times Bold Italic/dark red (0x663300) layer.setAggregateLabelStyle("Times New Roman Bold Italic", 10, 0x663300); // Set the labels on the x axis TextBox textbox = c.xAxis().setLabels(labels); // Set the x axis label font to 10pt Arial Bold Italic textbox.setFontStyle("Arial Bold Italic"); textbox.setFontSize(10); // Set the x axis to Transparent, with labels in dark red (0x663300) c.xAxis().setColors(Chart.Transparent, 0x663300); // Set the y axis and labels to Transparent c.yAxis().setColors(Chart.Transparent, Chart.Transparent); // 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}: US${value} millions'")); %> <!DOCTYPE html> <html> <head> <title>Borderless 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;"> Borderless 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>