Hi,
This bug 4625249
- UnsupportedOperationException throws in ImageComponent for some ColorModel
is fixed in the upcoming v1.3 beta2 release.
Thanks.
- Kelvin
---------------
Java 3D Team
Sun Microsystems Inc.
>Date: Sat, 20 Apr 2002 18:11:53 -0400
>From: Vijayaraghavan Rajagopal <[EMAIL PROTECTED]>
>Subject: [JAVA3D] Help with ImageComponent methods
>To: [EMAIL PROTECTED]
>Content-transfer-encoding: 8bit
>Delivered-to: [EMAIL PROTECTED]
>
>Hi,
>
>I wrote a while back about having problems with the ImageComponent2D
constructor. I am still stuck on this. I was told that a NullPointerException
occurred as the ColorModel was set to null for my image. I tried to fix that by
setting a ColorModel for the object. I read that the ColorModel should have same
transfer type as the sample model of the image. Here is the code fragment I
used. This code fragment is used to create a RenderedImage. It uses JAI to
decode DICOM images
>
>sampleModel
> =
RasterFactory.createPixelInterleavedSampleModel(DataBuffer.TYPE_SHORT,
> width,
> height,
> 1);
>
>
>
> //create a ColorModel object
> ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
> int bits[] = new int[] {8};
> colorModel = new
ComponentColorModel(cs,bits,false,false,Transparency.OPAQUE,DataBuffer.TYPE_SHOR
T);
>Now I get an unsupported method error. I am not allowed to use TYPE_SHORT.
>
>Exception occurred during event dispatching:
>java.lang.UnsupportedOperationException: This method has not been implemented
for transferType 2
>
> at
java.awt.image.ComponentColorModel.extractComponent(ComponentColorModel.java:372
)
> at
java.awt.image.ComponentColorModel.getRGBComponent(ComponentColorModel.java:315)
> at
java.awt.image.ComponentColorModel.getRed(ComponentColorModel.java:425)
> at
javax.media.j3d.ImageComponentRetained.copyImage(ImageComponentRetained.java:371
)
> at
javax.media.j3d.ImageComponent2DRetained.set(ImageComponent2DRetained.java:370)
> at javax.media.j3d.ImageComponent2D.<init>(ImageComponent2D.java:103)
> at BrainGUI.actionPerformed(BrainGUI.java:178)
> at java.awt.MenuItem.processActionEvent(MenuItem.java:526)
> at java.awt.MenuItem.processEvent(MenuItem.java:490)
> at java.awt.MenuComponent.dispatchEventImpl(MenuComponent.java:266)
> at java.awt.MenuComponent.dispatchEvent(MenuComponent.java:256)
> at java.awt.EventQueue.dispatchEvent(EventQueue.java:336)
> at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:1
26)
> at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:93)
> at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:88)
> at java.awt.EventDispatchThread.run(EventDispatchThread.java:80)
>
>Can someone also tell me how I can find out what these exceptions mean, and how
I can figure out what I am doing wrong? I am sorry if this problem seems too
simple. I am very new to Java.
>
>
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