Hello Again,
Kevlin, regarding the cloneTree/TCBSplinePathInerpolator issue:
I did like you said and replaced the TCBSplinePathInterpolator.java
However, it now gives me a different NullPointerException:
Exception occurred during Behavior execution:
java.lang.NullPointerException:
at
com.sun.j3d.utils.behaviors.interpolators.CubicSplineCurve.getSegment
(CubicSplineCurve.java:131)
at
com.sun.j3d.utils.behaviors.interpolators.RotPosScaleTCBSplinePathInt
erpolator.processStimulus(RotPosScaleTCBSplinePathInterpolator.java:192)
at javax.media.j3d.BehaviorScheduler.processBehaviors(Compiled Code)
at javax.media.j3d.BehaviorScheduler.run(Compiled Code)
Does some additional code have to be added to CubicSplineCurve.java as well?
Hope to hear from you.
Regards
Anders
>From: Kelvin Chung <[EMAIL PROTECTED]>
>Reply-To: Kelvin Chung <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>CC: [EMAIL PROTECTED]
>Subject: Re: [JAVA3D] cloneTree and TCBSplinePathInterpolator !!!!
>Date: Mon, 20 Mar 2000 11:13:35 -0800 (PST)
>
>Hi Anders:
>
> The class RotPosScaleTCBSplinePathInterpolator
>
>fail to duplicate the two attributes
>
>Alpha alpha, TCBKeyFrame keys[] of its parent class
>
> TCBSplinePathInterpolator
>
>since the parent class did not implement
>
> public void duplicateNode(Node originalNode, boolean forceDuplicate)
>
>
>To fix the problem,
>
>
>Please add the following function in TCBSplinePathInterpolator.java
>
>
> public void duplicateNode(Node originalNode, boolean forceDuplicate) {
> super.duplicateNode(originalNode, forceDuplicate);
> TCBSplinePathInterpolator originalSpline = (TCBSplinePathInterpolator)
>originalNode;
> setAlpha(originalSpline.getAlpha());
> keysLength = originalSpline.keysLength;
> keyFrames = new TCBKeyFrame[keysLength];
> System.arraycopy(originalSpline.keyFrames, 0,
> keyFrames, 0, keysLength);
> }
>
>
>(You can find the source code of j3d utility in the distribution)
>
>
>This bug will be fix in FCS version (but not in the upcoming v1.2 beta2).
>
>Thanks for your bug report.
>
>- Kelvin
>
>-----------
>Java 3D Team
>Sun Microsystems Inc.
>
>
> >X-Originating-IP: [137.222.217.98]
> >Mime-Version: 1.0
> >Date: Sat, 18 Mar 2000 18:32:39 CET
> >From: Anders Breivik <[EMAIL PROTECTED]>
> >Subject: [JAVA3D] cloneTree and TCBSplinePathInterpolator !!!!
> >To: [EMAIL PROTECTED]
> >
> >Hello everyone!
> >
> >I've got a java3d problem which really starts to annoy me, can anyone
>please
> >help me with the following:
> >
> >I've got a scene with a number of objects. Some of these objects have
> >assosiated interpolators (RotPosScaleTCBSplinePathInterpolator)
> >which create animations. The scene is loaded from lightwave (using
> >lw3dLoader) which creates a BranchGroup representing the entire scene.
> >I've used cloneTree to make a copy of this BranchGroup. (I whish to do
>this
> >because I do not want to reload the entire scene each time my game is
> >restarted.) The problem is that the cloned branchgroup does NOT contain
>the
> >TCBKeyFrame data which makes TCBSplinePathInterpolator and
> >RotPosScaleTCBSplinePathInterpolator work! The game starts up, but no
> >objects in the scene are moving. It then gives a NullPointerException
> >because the TBCKeyFrame array kontaines no data - no frames! Whats going
> >on????? Am I missing something important or is this a BUG?
> >
> >I tried to work around this by accessing the TCBKeyFrame field
>'keyFrames'
> >but it is protected wihtin the class TCBSplinePathInterpolator
> >
> >Help, Help... What should I do?
> >
> >
> >Regards
> >Anders
> >
> >
> >
> >
> >
> >
> >
> >
> >______________________________________________________
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