How to solve javax.media.j3d.CapabilityNotSetException: Background: no capa

Hi
i am chnage Java 3d object loader applet background color for run time.
here i attached my coding.
error will be displayed like
javax.media.j3d.CapabilityNotSetException: Background: no capability to set color
pls help me, how to set runtime coor setting option.
regards,
M.Mathivanan

- I will say again. Please do not cross post. This is thread #3 for the exact same question. Keep all your questions regarding the same problem in the same thread. You will find the answer you need in the following thread:
http://forum.java.sun.com/thread.jspa?threadID=673593&tstart=0

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Creating a text with transparent background using javax.media.j3d.Raster

Hi, I'm trying to display a text in Java3D using the Raster but I'm not sure to make the background of the text transparent. Does anyone have any ideas.
Here's my code for creating the Raster image:
private javax.media.j3d.Raster getRaster(String str, boolean rotate) {
// Create an empty raster.
javax.media.j3d.Raster raster = new javax.media.j3d.Raster();
// Get a font metrics.
Font font = new Font("Times", Font.PLAIN, 12);
FontMetrics fm = getFontMetrics(font);
// Calculate the raster size.
int width = SwingUtilities.computeStringWidth(fm, str) + 6;
int height = 18;
// Create an BufferedImage.
BufferedImage image = new BufferedImage(width,
height,
BufferedImage.TYPE_INT_BGR);
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Graphics2D g2d = (Graphics2D) image.getGraphics();
g2d.setFont(font);
g2d.setColor(Color.WHITE);
g2d.drawString(str, 3, 14);
// Set the BufferedImage to the raster.
raster.setImage(new ImageComponent2D(ImageComponent2D.FORMAT_RGB, image));
raster.setSize(width, height);
raster.setType(javax.media.j3d.Raster.RASTER_COLOR);
raster.setCapability(javax.media.j3d.Raster.ALLOW_IMAGE_WRITE);
raster.setCapability(javax.media.j3d.Raster.ALLOW_SIZE_READ);
return raster;
Thank you for your help.

Hi,
If you create a new transparent imge you can put a color fill layer below the text layer and either turn off the layer visiblity for the color fill layer (eye beside the color fill layer in the layers panel)
or delete the color fill layer before saving the file as a transparent png.

Where is the javax.media.j3d

Hi I install Java3d JDK 1.4.2 but i have only one jar file with com.sun... utility java 3d package what I must do to have package javax.media.j3d?And do I can use java 3d to create games?

Hi I install Java3d JDK 1.4.2 but i have only one jar
file with com.sun... utility java 3d package what I
must do to have package javax.media.j3d?For me it was straight forward process of installing the complete J3D. Extract the files to YOUR_JDK_PATH/jre/lib/ext and/or tell java via the CLASSPATH variable to use the jar's.
And do I can use java 3d to create games?Yes...if you put some brain and effort in it. There are several projects in the web, which care about game programming using J3D. Try to google for them.
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Javax.media,j3d import problem

Hi,
I had one old project and have tried to run it today.
I have downloaded jdse 1.5 and I have tried to compile with eclipse 3.1 but I can't import these classes, the errors are :
Severity     Description     Resource     In Folder     Location     Creation Time
2     The import javax.media cannot be resolved     Demoirb2000nonrealtime.java     RTEnvironment/Demo     line 15     8 de diciembre de 2005 10:49:38
2     The import javax.vecmath cannot be resolved     Demoirb2000nonrealtime.java     RTEnvironment/Demo     line 16     8 de diciembre de 2005 10:49:38
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try a search on google for javax.media and the others import I'm not sure but I think they are not standard java.

How to import javax.media.*

i am doing project on audio ,video transmission over the LAN.
after installing JMF1.2.1, when i run the program i am getting the error
"D:\raghu\amp\audiolabreports\ampcom\AmpCom.java:3: package javax.media does not exist
import javax.media.*;
^
1 error"
please help me out
-raghnath.g

Hi,
You need to place jmf.jar in your classpath.
-Amol

How to solve javax.servlet.jsp.JspException: duplicate Id for a component?

Dear everyone,
I have built some customized JSF components. In the taglib, there is attribute "id" for my components. There is no problem when the page is run, but when I click submit button, there are errors.
javax.servlet.jsp.JspException: duplicate Id for a component form1:dojoComboBox1 at com.sun.faces.taglib.jsf_core.ViewTag.doAfterBody(ViewTag.java:191) at _andychun._jspService(_andychun.java:190) [andychun.jsp] at com.orionserver[Oracle Containers for J2EE 10g (10.1.3.1.1) ].http.OrionHttpJspPage.service(OrionHttpJspPage.java:59) at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462) at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:598) at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:522)
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Best Regards,
David

Alex,
my guess is that because you copied content from the
first page to the next, you created JSF components
with the same ID. JSF components must have unique IDs
though.
FrankHello Frank,
Thanks for your reply. The thing is in the first page I do not have much id's specified/defined. And in the second page what I did was to take out all id's to see if it was conflicting. When I tried it again I still got the error. So the id's are being generated automatically if seems.
Also is it that JSF components should have unique id's for a particular page or all pages in the JSF application?
Any other sugguestions. I hope you understand what I am saying. If you have any questions or uncertainties fell free to ask me.
Thanks,
Alex.

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Hey there,
And welcome to Apple Discussions.
If your iPod, is a 30 GB model, then it is a 5th generation iPod. This information can be found here: [Identifying iPod Models|http://support.apple.com/kb/HT1353]
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Hope this helps.
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at javax.mail.Transport.send0(Transport.java:188)
at javax.mail.Transport.send(Transport.java:118)
at Main.<init>(Main.java:41)
at Main.main(Main.java:51)
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**Click the KUDOS star on the left to say 'Thanks'**
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"package javax.media does not exist" error message. Help!

May be this is a rookie problem, but I can't solve it by myself.
I'm using JBuider X to develop a GUI, and need to capture an image, from a web cam or so, and to save it in DB.
The problem is: I found some source codes wich are supposed to do this... but they references (imports) an javax.media class... and the JBuilder says that this class doesn't exists.
Can anyone help me?
Where can I get the class, and how I inform to JBuider where it's located?
Thanks in advance.
Ernesto Becker

Project tab, "Build", Libraries -> import the JMF libraries. Something like that.

How to solve a problem related with implementing Inheritance?

Hello,
So i come on this way to ask for help about implementing Inheritance on my application. So the problem is:
I am making a Application which i need to capture audio and that analyze that capture by Spectrum Analyzer, Volumes etc.
And I will use several microphones in this application so i will use same code in capturing audio.
I have a class called Application which has the GUI and the events, like button events and update the values in the GUI. In my first version of the Application i had everything here but i don´t like that and is not good for the performance so i want to divide the code by other classes. Thats why i am trying the Inheritance.
So i created a class called Equipment which is the superclass and in this class will have the method captureAudio(), calculateRMSLevel(), sendOutPresenceUpdates() etc.. And i have 3 variables:
public abstract class Equipment {
    public AudioFormat format;
    public TargetDataLine line;
    public Mixer mixer;
    public EventListenerList listenerList = new EventListenerList();
    public Equipment(AudioFormat format, TargetDataLine line, Mixer mixer){
        this.format = format;
        this.line = line;
        this.mixer = mixer;
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        return format;
    public void setFormat(AudioFormat format) {
        this.format = format;
    public TargetDataLine getLine() {
        return line;
    public void setLine(TargetDataLine line) {
        this.line = line;
    public Mixer getMixer() {
        return mixer;
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        this.mixer = mixer;
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            lSum = lSum + audioData;
double dAvg = lSum / audioData.length;
double sumMeanSquare = 0d;
for(int j=0; j<audioData.length; j++)
sumMeanSquare = sumMeanSquare + Math.pow(audioData[j] - dAvg, 2d);
double averageMeanSquare = sumMeanSquare / audioData.length;
return (int)(Math.pow(averageMeanSquare,0.5d) + 0.5);
public void sendOutPresenceUpdates(int FullJIDAndResource, String NewPresence) {
     Object[] listeners = listenerList.getListenerList();
     Integer inputValue = _FullJIDAndResource;
     String convertedValue = inputValue.toString();
// Empty out the listener list
     // Each listener occupies two elements - the first is the listener class and the second is the listener instance
for (int i=0; i < listeners.length; i+=2) {
          if (listeners[i]==CustomPresenceListener.class) {
               ((CustomPresenceListener)listeners[i+1]).presenceEventOccurred(new CustomPresenceEvent(this, convertedValue, _NewPresence));
public void listenForPresenceEvents(CustomPresenceListener _listener) {
          listenerList.add(CustomPresenceListener.class, _listener);
public void removeEventListener(CustomPresenceListener _listener) {
          listenerList.remove(CustomPresenceListener.class, _listener);
public void captureAudio(){
And i have questions about the constructor, is right the constructor that i created in the superclass?
So i create a subclass called Microphone1 and in this class i make override from the method captureAudio() from the superclass and here i create the thread for the capture.class Microphone1 extends Equipment{
public Microphone1(AudioFormat format, TargetDataLine line, Mixer mixer){
super(format,line,mixer);
public void captureAudio(){
try{
format = getFormat();
Mixer.Info[] mixerInfo =AudioSystem.getMixerInfo();
//DataLine.info get the information about the line.
DataLine.Info info = new DataLine.Info(TargetDataLine.class,format);
Mixer mixer = AudioSystem.getMixer(mixerInfo[3]);
// get the info from the desired line.
line = (TargetDataLine)AudioSystem.getLine(info);
//Get a TargetDataLine on the selected mixer.
line = (TargetDataLine) mixer.getLine(info);
line.open(format);
line.start();
CaptureThread captureThread = new CaptureThread();
captureThread.start();
} catch (Exception e) {
System.out.println(e);
System.exit(0);
}//end catch
But now i have a problem in the class Application, because i want to start the capture when i click in the button so i created the actionPerfomed and inside of this event i create this:Microphone1 m1 = new Microphone1(format,line,mixer);
m1.captureAudio();
But when i execute the application and click in the button appears this: java.lang.NullPointerException :/ and i don't know how to solve this.
Any help? Where i am wrong?

Hello Kayaman,
Well thinking in that way is not good creating the Microphone1 object every time i click in the button.
So i put e.printStackTrace in the catch block the show me this error:
java.lang.NullPointerException
at com.sun.media.sound.Toolkit.isFullySpecifiedAudioFormat(Toolkit.java:137)
at com.sun.media.sound.AbstractDataLine.open(AbstractDataLine.java:98)
at com.sun.media.sound.AbstractDataLine.open(AbstractDataLine.java:139)
at App.Microphone1.captureAudio(Microphone1.java:42)
at App.Application.startBtnActionPerformed(Application.java:529)
at App.Application.access$000(Application.java:29)
at App.Application$1.actionPerformed(Application.java:152)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6267)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6032)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
at App.Microphone1.captureAudio(Microphone1.java:42):
This error is about this line: line.open(format);at App.Application.startBtnActionPerformed(Application.java:529): m1.captureAudio();:/

In compileng time this class not found import javax.media.jai.JA

Hi,
I�m download
jai_imageio-1_0_01-lib-windows-i586
jai_imageio-1_0_01-lib-windows-i586-jdk
jai_imageio-1_0_01-lib-windows-i586-jre
jdk-1_5_0_02-windows-i586-p
in compel time
import com.sun.media.jai.codec.*;
import javax.media.jai.JAI;
The complier gave me error class not found
How can i configured my system
I have Windows XP
[email protected]

try compiling like this:
java -cp "." myTest
This is not compiling, here you execute the already
compiled myTest.java file (or it should be already
compiled). To compile you may want to use javac or any
other available compiler.Oops, sorry, I didn't mean compiling.
If you were able to compile ok, you can try running the program by using:
java -cp "." myTest
This usually will solve the problem when your program comples fine but can't find the class when you try to run it. It's almost like the compiler assumes to look in the current directory but the VM (java.exe) doesn't make this assumption.

Javax.media, installing

Hi, I am trying to use:
import javax.media.jai.PlanarImage;
import javax.media.jai.Histogram;
But I keep getting an error, how do i install them? I am assuming i have to download a new developers pack, and how do I install it under eclipse?
Many thanks, Ron

I have the same problem, can you help to solve it?
I can't make work JMF in my linux box:
I have added these lines to my .bashrc script:
export JMFHOME=/usr/local/lib/JMF-2.1.1e
export CLASSPATH=$JMFHOME/lib/jmf.jar
export LD_LIBRARY_PATH=$JMFHOME/lib
Additionally I have make ln -s /usr/local/lib/JMF-2.1.1/lib/jmf.jar in
my /usr/local/lib/j2re1.4.2_01/lib/ext/ directory.
And
http://java.sun.com/products/java-media/jmf/2.1.1/jmfdiagnostics.html
always say me:
"JMF Version... 2.1.1e
All Java Build
Native Libraries Not Found"
What are "Native Libraries"?
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How to solve javax.media.j3d.CapabilityNotSetException: Background: no capa

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