Hi,
Dear Sir/Ma'am
When I run your P5_10 program, the following error messages show it cannot read
in *.gif file. But the file whick I am using is .gif file. I do not know what
it is wrong. I hope I can got your help.
D:\JBuilder8\jdk1.4\bin\javaw -classpath
"C:\VisADJython\p4\classes;C:\VisADJython\visad.jar;C:\VisADJython\jre\lib\ext\j3dcore.jar;D:\JBuilder8\jdk1.4\demo\jfc\Java2D\Java2Demo.jar;D:\JBuilder8\jdk1.4\demo\plugin\jfc\Java2D\Java2Demo.jar;D:\JBuilder8\jdk1.4\jre\lib\charsets.jar;D:\JBuilder8\jdk1.4\jre\lib\ext\dnsns.jar;D:\JBuilder8\jdk1.4\jre\lib\ext\ldapsec.jar;D:\JBuilder8\jdk1.4\jre\lib\ext\localedata.jar;D:\JBuilder8\jdk1.4\jre\lib\ext\sunjce_provider.jar;D:\JBuilder8\jdk1.4\jre\lib\im\indicim.jar;D:\JBuilder8\jdk1.4\jre\lib\jaws.jar;D:\JBuilder8\jdk1.4\jre\lib\jce.jar;D:\JBuilder8\jdk1.4\jre\lib\jsse.jar;D:\JBuilder8\jdk1.4\jre\lib\rt.jar;D:\JBuilder8\jdk1.4\jre\lib\sunrsasign.jar;D:\JBuilder8\jdk1.4\lib\dt.jar;D:\JBuilder8\jdk1.4\lib\htmlconverter.jar;D:\JBuilder8\jdk1.4\lib\tools.jar;C:\VisADJython\visad\java3d;C:\VisADJython\visad"
P5_10 image_1 image_2
visad.VisADException: IOException: Not an image
at visad.data.gif.GIFForm.open(GIFForm.java:91)
at P5_10.<init>(P5_10.java:87)
at P5_10.main(P5_10.java:223)
Exception in thread "main"
With attached P5_10.java
Many thanks.
Guangdi Li
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/*
VisAD Tutorial
Copyright (C) 2000 Ugo Taddei
*/
package tutorial.s5;
// Import needed classes
import visad.*;
import visad.util.*;
import visad.data.gif.*;
import visad.java2d.DisplayImplJ2D;
import visad.java3d.DisplayImplJ3D;
import java.rmi.RemoteException;
import java.awt.*;
import javax.swing.*;
import java.util.Calendar;
import java.util.GregorianCalendar;
import visad.jmet.*;
/**
VisAD Tutorial example 5_10
Animating a GIF/JPEG image
( time -> (( longitude, latitude ) -> ( redType, greenType, blueType ) ) )
Run program with java P5_10
*
*/
public class P5_10{
// Declare variables
// The RealTypes
private RealType time, longitude, latitude;
private RealType redType, greenType, blueType;
// The function
// ( time -> ( ( longitude, latitude ) -> ( redType, greenType,blueType ) ) )
private FunctionType func_t_latlon;
// Our Data values for longitude, latitude are represented by the set
private Set latlonSet;
// Time values are given by the set by the set
private Set timeSet;
// A FieldImpl
private FieldImpl timeField;
// The DataReference from the data to display
private DataReferenceImpl data_ref;
// The 2D display, and its the maps
private DisplayImpl display;
private ScalarMap timeAnimMap, timeZMap;
private ScalarMap lonXMap, latYMap, altiZMap;
private ScalarMap redMap, greenMap, blueMap;
public P5_10 (String[] args)
throws RemoteException, VisADException {
if(args.length <= 1){
System.out.println("run with \"java P5_10 image_1.gif image_2.gif ...\"");
return;
}
// The following will hold the number of images
int nImages = args.length;
// Create GIFForm object
GIFForm image = new GIFForm();
// Get the image data
DataImpl imageData = image.open(args[0]);
// Print out the MathType
System.out.println(imageData.getType().prettyString());
// Get the image type. Oh, well, we know it's a FunctionType
FunctionType functionType = (FunctionType) imageData.getType();
// Get the domain...
RealTupleType domain = (RealTupleType) functionType.getDomain();
// ...and the range
RealTupleType range = (RealTupleType)functionType.getRange();
// Create the quantities
longitude = (RealType) domain.getComponent(0);
latitude = (RealType) domain.getComponent(1);
redType = (RealType) range.getComponent(0);
greenType = (RealType) range.getComponent(1);
blueType = (RealType) range.getComponent(2);
// Define Time and its set
time = RealType.getRealTypeByName("Time");
// make set as big enaough to hold all nImages
timeSet = new Integer1DSet(time, nImages);
// Make Function ( time -> ( Image-MathType) )
func_t_latlon = new FunctionType(time, functionType);
// Make Field
timeField = new FieldImpl( func_t_latlon, timeSet);
// Set Field with data from the images
// set the first on, because it's already open
timeField.setSample(0, imageData);
// ...then set the rest
for(int i=1;i<nImages;i++){
imageData = image.open(args[i]);
timeField.setSample(i, imageData);
}
// Dump info about data or data type
DumpType.dumpMathType( func_t_latlon, System.out);
//DumpType.dumpDataType( timeField, System.out);
// Create Display and its maps
// The display
//display = new DisplayImplJ3D("display1");
display = new DisplayImplJ2D("display1");
// Get display's graphics mode control draw scales
GraphicsModeControl dispGMC = (GraphicsModeControl)
display.getGraphicsModeControl();
dispGMC.setScaleEnable(true);
// Create the ScalarMaps
lonXMap = new ScalarMap( longitude, Display.XAxis );
latYMap = new ScalarMap( latitude, Display.YAxis );
redMap = new ScalarMap( redType, Display.Red );
greenMap = new ScalarMap( greenType, Display.Green );
blueMap = new ScalarMap( blueType, Display.Blue );
timeAnimMap = new ScalarMap( time, Display.Animation );
// Add maps to display
display.addMap( lonXMap );
display.addMap( latYMap );
display.addMap( redMap );
display.addMap( greenMap );
display.addMap( blueMap );
display.addMap( timeAnimMap );
// Create a data reference and set the FieldImpl as our data
data_ref = new DataReferenceImpl("image_ref");
data_ref.setData( timeField );
// Add reference to display
display.addReference( data_ref );
// Get AnimationControl from the Animation ScalarMap
AnimationControl ac = (AnimationControl) timeAnimMap.getControl();
// and start animation
ac.setOn( true );
// Create application window, put display into it
JFrame jframe = new JFrame("VisAD Tutorial example 5_10");
jframe.getContentPane().setLayout( new BorderLayout());
jframe.getContentPane().add(display.getComponent(), BorderLayout.CENTER);
// Set window size and make it visible
jframe.setSize(300, 300);
jframe.setVisible(true);
}
public static void main(String[] args)
throws RemoteException, VisADException
{
new P5_10(args);
}
} //end of Visad Tutorial Program 5_10
