ChartDirector 6.1 (Java Edition)

Multi-Line Chart (1)




This example demonstrates a chart with multiple lines of different styles. It also demonstrates using frame with rounded corners, title with glass shading effect, both vertical and horizontal grid lines, and a legend at the top of the plot area.

Source Code Listing

[JSP Version] jspdemo/multiline.jsp
<%@page import="ChartDirector.*" %>
<%
// The data for the line chart
double[] data0 = {42, 49, 33, 38, 51, 46, 29, 41, 44, 57, 59, 52, 37, 34, 51, 56, 56, 60, 70, 76,
    63, 67, 75, 64, 51};
double[] data1 = {50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73, 77,
    84, 82, 80, 84, 98};
double[] data2 = {36, 28, 25, 33, 38, 20, 22, 30, 25, 33, 30, 24, 28, 15, 21, 26, 46, 42, 48, 45,
    43, 52, 64, 60, 70};

// The labels for the line chart
String[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14",
    "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};

// Create an XYChart object of size 600 x 300 pixels, with a light blue (EEEEFF) background, black
// border, 1 pxiel 3D border effect and rounded corners
XYChart c = new XYChart(600, 300, 0xeeeeff, 0x000000, 1);
c.setRoundedFrame();

// Set the plotarea at (55, 58) and of size 520 x 195 pixels, with white background. Turn on both
// horizontal and vertical grid lines with light grey color (0xcccccc)
c.setPlotArea(55, 58, 520, 195, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);

// Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 9pt Arial Bold font.
// Set the background and border color to Transparent.
c.addLegend(50, 30, false, "Arial Bold", 9).setBackground(Chart.Transparent);

// Add a title box to the chart using 15pt Times Bold Italic font, on a light blue (CCCCFF)
// background with glass effect. white (0xffffff) on a dark red (0x800000) background, with a 1
// pixel 3D border.
c.addTitle("Application Server Throughput", "Times New Roman Bold Italic", 15).setBackground(
    0xccccff, 0x000000, Chart.glassEffect());

// Add a title to the y axis
c.yAxis().setTitle("MBytes per hour");

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

// Display 1 out of 3 labels on the x-axis.
c.xAxis().setLabelStep(3);

// Add a title to the x axis
c.xAxis().setTitle("Jun 12, 2006");

// Add a line layer to the chart
LineLayer layer = c.addLineLayer2();

// Set the default line width to 2 pixels
layer.setLineWidth(2);

// Add the three data sets to the line layer. For demo purpose, we use a dash line color for the
// last line
layer.addDataSet(data0, 0xff0000, "Server #1");
layer.addDataSet(data1, 0x008800, "Server #2");
layer.addDataSet(data2, c.dashLineColor(0x3333ff, Chart.DashLine), "Server #3");

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

// Include tool tip for the chart
String imageMap1 = c.getHTMLImageMap("", "", "title='[{dataSetName}] Hour {xLabel}: {value} MBytes'"
    );
%>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Multi-Line Chart (1)
</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/multiline.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;

public class multiline implements DemoModule
{
    //Name of demo program
    public String toString() { return "Multi-Line Chart (1)"; }

    //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 line chart
        double[] data0 = {42, 49, 33, 38, 51, 46, 29, 41, 44, 57, 59, 52, 37, 34, 51, 56, 56, 60,
            70, 76, 63, 67, 75, 64, 51};
        double[] data1 = {50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59,
            73, 77, 84, 82, 80, 84, 98};
        double[] data2 = {36, 28, 25, 33, 38, 20, 22, 30, 25, 33, 30, 24, 28, 15, 21, 26, 46, 42,
            48, 45, 43, 52, 64, 60, 70};

        // The labels for the line chart
        String[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13",
            "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"};

        // Create an XYChart object of size 600 x 300 pixels, with a light blue (EEEEFF) background,
        // black border, 1 pxiel 3D border effect and rounded corners
        XYChart c = new XYChart(600, 300, 0xeeeeff, 0x000000, 1);
        c.setRoundedFrame();

        // Set the plotarea at (55, 58) and of size 520 x 195 pixels, with white background. Turn on
        // both horizontal and vertical grid lines with light grey color (0xcccccc)
        c.setPlotArea(55, 58, 520, 195, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);

        // Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 9pt Arial
        // Bold font. Set the background and border color to Transparent.
        c.addLegend(50, 30, false, "Arial Bold", 9).setBackground(Chart.Transparent);

        // Add a title box to the chart using 15pt Times Bold Italic font, on a light blue (CCCCFF)
        // background with glass effect. white (0xffffff) on a dark red (0x800000) background, with
        // a 1 pixel 3D border.
        c.addTitle("Application Server Throughput", "Times New Roman Bold Italic", 15
            ).setBackground(0xccccff, 0x000000, Chart.glassEffect());

        // Add a title to the y axis
        c.yAxis().setTitle("MBytes per hour");

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

        // Display 1 out of 3 labels on the x-axis.
        c.xAxis().setLabelStep(3);

        // Add a title to the x axis
        c.xAxis().setTitle("Jun 12, 2006");

        // Add a line layer to the chart
        LineLayer layer = c.addLineLayer2();

        // Set the default line width to 2 pixels
        layer.setLineWidth(2);

        // Add the three data sets to the line layer. For demo purpose, we use a dash line color for
        // the last line
        layer.addDataSet(data0, 0xff0000, "Server #1");
        layer.addDataSet(data1, 0x008800, "Server #2");
        layer.addDataSet(data2, c.dashLineColor(0x3333ff, Chart.DashLine), "Server #3");

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

        //include tool tip for the chart
        viewer.setImageMap(c.getHTMLImageMap("clickable", "",
            "title='[{dataSetName}] Hour {xLabel}: {value} MBytes'"));
    }

    //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 multiline();

        //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);
    }
}