ChartDirector 6.1 (Java Edition)

Pyramid Gap


          

This example demonstrates the effects of different pyramid layer gap sizes, configured with PyramidChart.setLayerGap.

Source Code Listing

[JSP Version] jspdemo/pyramidgap.jsp
<%@page import="ChartDirector.*" %>
<%@page import="javax.servlet.http.*" %>
<%!
// A simple structure to represent a chart image with an image map
private static class ImageWithHotSpot
{
    String imageURL;
    String imageMap;
}

// Function to create the demo charts
ImageWithHotSpot createChart(HttpServletRequest request, int chartIndex)
{
    // The data for the pyramid chart
    double[] data = {156, 123, 211, 179};

    // The colors for the pyramid layers
    int[] colors = {0x66aaee, 0xeebb22, 0xcccccc, 0xcc88ff};

    // The layer gap
    double gap = chartIndex * 0.01;

    // Create a PyramidChart object of size 200 x 200 pixels, with white (ffffff) background and
    // grey (888888) border
    PyramidChart c = new PyramidChart(200, 200, 0xffffff, 0x888888);

    // Set the pyramid center at (100, 100), and width x height to 60 x 120 pixels
    c.setPyramidSize(100, 100, 60, 120);

    // Set the layer gap
    c.addTitle("Gap = " + gap, "Arial Italic", 15);
    c.setLayerGap(gap);

    // Set the elevation to 15 degrees
    c.setViewAngle(15);

    // Set the pyramid data
    c.setData(data);

    // Set the layer colors to the given colors
    c.setColors2(Chart.DataColor, colors);

    // Output the chart
    ImageWithHotSpot ret = new ImageWithHotSpot();
    ret.imageURL = c.makeSession(request, "chart" + chartIndex);
    return ret;
}
%>
<%
ImageWithHotSpot chart0 = createChart(request, 0);
ImageWithHotSpot chart1 = createChart(request, 1);
ImageWithHotSpot chart2 = createChart(request, 2);
ImageWithHotSpot chart3 = createChart(request, 3);
ImageWithHotSpot chart4 = createChart(request, 4);
ImageWithHotSpot chart5 = createChart(request, 5);
%>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Pyramid Gap
</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?"+chart0.imageURL)%>'>
<img src='<%=response.encodeURL("getchart.jsp?"+chart1.imageURL)%>'>
<img src='<%=response.encodeURL("getchart.jsp?"+chart2.imageURL)%>'>
<img src='<%=response.encodeURL("getchart.jsp?"+chart3.imageURL)%>'>
<img src='<%=response.encodeURL("getchart.jsp?"+chart4.imageURL)%>'>
<img src='<%=response.encodeURL("getchart.jsp?"+chart5.imageURL)%>'>
</body>
</html>

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

public class pyramidgap implements DemoModule
{
    //Name of demo program
    public String toString() { return "Pyramid Gap"; }

    //Number of charts produced in this demo
    public int getNoOfCharts() { return 6; }

    //Main code for creating charts
    public void createChart(ChartViewer viewer, int chartIndex)
    {
        // The data for the pyramid chart
        double[] data = {156, 123, 211, 179};

        // The colors for the pyramid layers
        int[] colors = {0x66aaee, 0xeebb22, 0xcccccc, 0xcc88ff};

        // The layer gap
        double gap = chartIndex * 0.01;

        // Create a PyramidChart object of size 200 x 200 pixels, with white (ffffff) background and
        // grey (888888) border
        PyramidChart c = new PyramidChart(200, 200, 0xffffff, 0x888888);

        // Set the pyramid center at (100, 100), and width x height to 60 x 120 pixels
        c.setPyramidSize(100, 100, 60, 120);

        // Set the layer gap
        c.addTitle("Gap = " + gap, "Arial Italic", 15);
        c.setLayerGap(gap);

        // Set the elevation to 15 degrees
        c.setViewAngle(15);

        // Set the pyramid data
        c.setData(data);

        // Set the layer colors to the given colors
        c.setColors2(Chart.DataColor, colors);

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

    //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 pyramidgap();

        //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);
        frame.getContentPane().setLayout(new FlowLayout(FlowLayout.LEFT));
        frame.setSize(800, 450);

        // Create the charts and put them in the content pane
        for (int i = 0; i < demo.getNoOfCharts(); ++i)
        {
            ChartViewer viewer = new ChartViewer();
            demo.createChart(viewer, i);
            frame.getContentPane().add(viewer);
        }

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