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  Why " no capability to remove children()"  (Read 4083 times)
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Offline sinfun

Junior Newbie

Java games rock!

« Posted 2003-05-30 11:33:58 »

public      Scene s = null;
     bjectFile f = new ObjectFile(flags,
       (float)(creaseAngle * Math.PI / 180.0));

      s = f.load(filename);
and when  I want to change the  obj file ,first i use the "objTrans.removeChild(s.getSceneGroup()); "
then the wrong appear: (please help me) Group: no capability to remove children()
     at ObjLoad.change(
     at ObjLoad.actionPerformed(
     at java.awt.Button.processActionEvent(
     at java.awt.Button.processEvent(
     at java.awt.Component.dispatchEventImpl(
     at java.awt.Component.dispatchEvent(
     at java.awt.EventQueue.dispatchEvent(
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(
     at java.awt.EventDispatchThread.pumpEvents(
     at java.awt.EventDispatchThread.pumpEvents(
Offline Orangy Tang

JGO Kernel

Medals: 57
Projects: 11

Monkey for a head

« Reply #1 - Posted 2003-05-30 11:45:08 »

This is probably pointing out the obvious, but don't you have to set a capability bit in the node to allow removing of children?

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Offline kevglass

« JGO Spiffy Duke »

Medals: 272
Projects: 25
Exp: 18 years

Coder, Trainee Pixel Artist, Game Reviewer

« Reply #2 - Posted 2003-05-30 11:45:42 »

The group must have




The element being removed must be a branch group and have


called on it.


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Offline bmyers

Junior Devvie

« Reply #3 - Posted 2003-05-30 14:46:13 »

Note that you only need to set the capability bits if the BranchGroup is part of a live or compiled scene graph.

Also, if you don't think you'll be doing the remove very often then you might want to set the capabilityIsFrequent(?) to false for that capability, to help Java3D optimize the scene graph.

Offline sinfun

Junior Newbie

Java games rock!

« Reply #4 - Posted 2003-05-31 12:14:53 »

Thanks a lot.I have a lot to learn.....
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