ChartDirector 6.1 (Java Edition)

Cylinder Bar Shading




This example demonstrates using cylinder shading effect for bars. It also demonstrates brushed metal background, rounded frame, and axis labels on both sides of the plot area.

Source Code Listing

[JSP Version] jspdemo/cylinderlightbar.jsp
<%@page import="ChartDirector.*" %>
<%
// The data for the bar chart
double[] data = {450, 560, 630, 800, 1100, 1350, 1600, 1950, 2300, 2700};

// The labels for the bar chart
String[] labels = {"1996", "1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004", "2005"};

// Create a XYChart object of size 600 x 380 pixels. Set background color to brushed silver, with a
// 2 pixel 3D border. Use rounded corners of 20 pixels radius.
XYChart c = new XYChart(600, 380, Chart.brushedSilverColor(), Chart.Transparent, 2);

// Add a title to the chart using 18pt Times Bold Italic font. Set top/bottom margins to 8 pixels.
c.addTitle("Annual Revenue for Star Tech", "Times New Roman Bold Italic", 18).setMargin2(0, 0, 8, 8)
    ;

// Set the plotarea at (70, 55) and of size 460 x 280 pixels. Use transparent border and black grid
// lines. Use rounded frame with radius of 20 pixels.
c.setPlotArea(70, 55, 460, 280, -1, -1, Chart.Transparent, 0x000000);
c.setRoundedFrame(0xffffff, 20);

// Add a multi-color bar chart layer using the supplied data. Set cylinder bar shape.
c.addBarLayer3(data).setBarShape(Chart.CircleShape);

// Set the labels on the x axis.
c.xAxis().setLabels(labels);

// Show the same scale on the left and right y-axes
c.syncYAxis();

// Set the left y-axis and right y-axis title using 10pt Arial Bold font
c.yAxis().setTitle("USD (millions)", "Arial Bold", 10);
c.yAxis2().setTitle("USD (millions)", "Arial Bold", 10);

// Set y-axes to transparent
c.yAxis().setColors(Chart.Transparent);
c.yAxis2().setColors(Chart.Transparent);

// Disable ticks on the x-axis by setting the tick color to transparent
c.xAxis().setTickColor(Chart.Transparent);

// Set the label styles of all axes to 8pt Arial Bold font
c.xAxis().setLabelStyle("Arial Bold", 8);
c.yAxis().setLabelStyle("Arial Bold", 8);
c.yAxis2().setLabelStyle("Arial Bold", 8);

// Output the chart
String chart1URL = c.makeSession(request, "chart1", Chart.JPG);

// Include tool tip for the chart
String imageMap1 = c.getHTMLImageMap("", "", "title='Year {xLabel}: US$ {value}M'");
%>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Cylinder Bar Shading
</div>
<hr color="#000080">
<div style="font-size:10pt; font-family:verdana; margin-bottom:1.5em">
    <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a>
</div>
<img src='<%=response.encodeURL("getchart.jsp?"+chart1URL)%>'
    usemap="#map1" border="0">
<map name="map1"><%=imageMap1%></map>
</body>
</html>

[Java Version] javademo/cylinderlightbar.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;

public class cylinderlightbar implements DemoModule
{
    //Name of demo program
    public String toString() { return "Cylinder Bar Shading"; }

    //Number of charts produced in this demo
    public int getNoOfCharts() { return 1; }

    //Main code for creating charts
    public void createChart(ChartViewer viewer, int chartIndex)
    {
        // The data for the bar chart
        double[] data = {450, 560, 630, 800, 1100, 1350, 1600, 1950, 2300, 2700};

        // The labels for the bar chart
        String[] labels = {"1996", "1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004",
            "2005"};

        // Create a XYChart object of size 600 x 380 pixels. Set background color to brushed silver,
        // with a 2 pixel 3D border. Use rounded corners of 20 pixels radius.
        XYChart c = new XYChart(600, 380, Chart.brushedSilverColor(), Chart.Transparent, 2);

        // Add a title to the chart using 18pt Times Bold Italic font. Set top/bottom margins to 8
        // pixels.
        c.addTitle("Annual Revenue for Star Tech", "Times New Roman Bold Italic", 18).setMargin2(0,
            0, 8, 8);

        // Set the plotarea at (70, 55) and of size 460 x 280 pixels. Use transparent border and
        // black grid lines. Use rounded frame with radius of 20 pixels.
        c.setPlotArea(70, 55, 460, 280, -1, -1, Chart.Transparent, 0x000000);
        c.setRoundedFrame(0xffffff, 20);

        // Add a multi-color bar chart layer using the supplied data. Set cylinder bar shape.
        c.addBarLayer3(data).setBarShape(Chart.CircleShape);

        // Set the labels on the x axis.
        c.xAxis().setLabels(labels);

        // Show the same scale on the left and right y-axes
        c.syncYAxis();

        // Set the left y-axis and right y-axis title using 10pt Arial Bold font
        c.yAxis().setTitle("USD (millions)", "Arial Bold", 10);
        c.yAxis2().setTitle("USD (millions)", "Arial Bold", 10);

        // Set y-axes to transparent
        c.yAxis().setColors(Chart.Transparent);
        c.yAxis2().setColors(Chart.Transparent);

        // Disable ticks on the x-axis by setting the tick color to transparent
        c.xAxis().setTickColor(Chart.Transparent);

        // Set the label styles of all axes to 8pt Arial Bold font
        c.xAxis().setLabelStyle("Arial Bold", 8);
        c.yAxis().setLabelStyle("Arial Bold", 8);
        c.yAxis2().setLabelStyle("Arial Bold", 8);

        // Output the chart
        viewer.setChart(c);

        //include tool tip for the chart
        viewer.setImageMap(c.getHTMLImageMap("clickable", "", "title='Year {xLabel}: US$ {value}M'")
            );
    }

    //Allow this module to run as standalone program for easy testing
    public static void main(String[] args)
    {
        //Instantiate an instance of this demo module
        DemoModule demo = new cylinderlightbar();

        //Create and set up the main window
        JFrame frame = new JFrame(demo.toString());
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {System.exit(0);} });
        frame.getContentPane().setBackground(Color.white);

        // Create the chart and put them in the content pane
        ChartViewer viewer = new ChartViewer();
        demo.createChart(viewer, 0);
        frame.getContentPane().add(viewer);

        // Display the window
        frame.pack();
        frame.setVisible(true);
    }
}