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  re: May you please help me by showing me how to add a extra line below the existing title line in the Linear Meter
Posted by Tom on Dec-01-2012 03:42
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Hello,

  I have tried to add an extra line to the existing title line in the Linear Meter program, but it does not work. So I would like to seek your help.

  In the existing Linear meter program, we have "Battery Level" in the  m.addTitle2(Chart.Bottom, "Battery Level", "Arial Bold", 8).setBackground(            Chart.Transparent, -1, 1);

I am happy with that and supposely if I want to add an extra line saying "Battery comes in the form of 1.5 volts to 9.0 volts and they  last from 6 months to 2 years", then how could i do it so my display would have two titles as follow :
            Battery Level
            Battery comes in the form of 1.5 volts to 9.0 volts and It could last from 6 months to 2 years.


    My question is that it is possible ? I wish to get our help because i really need two titles appear in two separate line.

Thanks so much in advance for all of your help,


Tom


Your original code appears below :


===================================================





//This example demonstrates a linear meter which is labelled with zones.

<%@page import="ChartDirector.*" %>
<%
// The value to display on the meter
double value = 85;

// Create an LinearMeter object of size 210 x 45 pixels, using silver background with
// a 2 pixel black 3D depressed border.
LinearMeter m = new LinearMeter(210, 45, Chart.silverColor(), 0, -2);

// Set the scale region top-left corner at (5, 5), with size of 200 x 20 pixels. The
// scale labels are located on the bottom (implies horizontal meter)
m.setMeter(5, 5, 200, 20, Chart.Bottom);

// Set meter scale from 0 - 100
m.setScale(0, 100);

// Add a title at the bottom of the meter with a 1 pixel raised 3D border
m.addTitle2(Chart.Bottom, "Battery Level", "Arial Bold", 8).setBackground(
    Chart.Transparent, -1, 1);

// Set 3 zones of different colors to represent Good/Weak/Bad data ranges
m.addZone(50, 100, 0x99ff99, "Good");
m.addZone(20, 50, 0xffff66, "Weak");
m.addZone(0, 20, 0xffcccc, "Bad");

// Add empty labels (just need the ticks) at 0/20/50/80 as separators for zones
m.addLabel(0, " ");
m.addLabel(20, " ");
m.addLabel(50, " ");
m.addLabel(100, " ");

// Add a semi-transparent blue (800000ff) pointer at the specified value, using
// triangular pointer shape
m.addPointer(value, 0x800000ff).setShape(Chart.TriangularPointer);

// Output the chart
String chart1URL = m.makeSession(request, "chart1");
%>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Linear Zone Meter
</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)%>'>
</body>
</html>


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

public class linearzonemeter implements DemoModule
{
    //Name of demo program
    public String toString() { return "Linear Zone Meter"; }

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

    //Main code for creating charts
    public void createChart(ChartViewer viewer, int index)
    {
        // The value to display on the meter
        double value = 85;

        // Create an LinearMeter object of size 210 x 45 pixels, using silver
        // background with a 2 pixel black 3D depressed border.
        LinearMeter m = new LinearMeter(210, 45, Chart.silverColor(), 0, -2);

        // Set the scale region top-left corner at (5, 5), with size of 200 x 20
        // pixels. The scale labels are located on the bottom (implies horizontal
        // meter)
        m.setMeter(5, 5, 200, 20, Chart.Bottom);

        // Set meter scale from 0 - 100
        m.setScale(0, 100);

        // Add a title at the bottom of the meter with a 1 pixel raised 3D border
        m.addTitle2(Chart.Bottom, "Battery Level", "Arial Bold", 8).setBackground(
            Chart.Transparent, -1, 1);

        // Set 3 zones of different colors to represent Good/Weak/Bad data ranges
        m.addZone(50, 100, 0x99ff99, "Good");
        m.addZone(20, 50, 0xffff66, "Weak");
        m.addZone(0, 20, 0xffcccc, "Bad");

        // Add empty labels (just need the ticks) at 0/20/50/80 as separators for
        // zones
        m.addLabel(0, " ");
        m.addLabel(20, " ");
        m.addLabel(50, " ");
        m.addLabel(100, " ");

        // Add a semi-transparent blue (800000ff) pointer at the specified value,
        // using triangular pointer shape
        m.addPointer(value, 0x800000ff).setShape(Chart.TriangularPointer);

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

        //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);
    }
}





====================================================

  re: May you please help me by showing me how to add a extra line below the existing title line in the Linear Meter
Posted by Peter Kwan on Dec-03-2012 14:16
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Hi Tom,

You may just add a line break to break it into two lines. In Java, the line break character is "\\n". For example:

"Line 1\\nThis is another line."

If you want the second line to be in another font, you may use the CDML. For example:

"Line 1\\n<*font=Arial*>This is another line."

Hope this can help.

Regards
Peter Kwan