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exceptions!!

843799Aug 2 2001 — edited Aug 3 2001
when try to compile my code
-----------------------------------
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.awt.*;
public class Main
{
public Main()
{
Transform3D tf=new Transform3D();
TransformGroup trans=new TransformGroup();
Vector3f vec=new Vector3f(0.0f,-4.0f,0.2f);
SimpleUniverse su=new SimpleUniverse();
BranchGroup bg=new BranchGroup();
ColorCube cc=new ColorCube(0.10f);
tf.setTranslation(vec);
trans.setTransform(tf);
trans.addChild(cc);
bg.addChild(cc);
su.getViewingPlatform().setNominalViewingTransform();
su.addBranchGraph(bg);
}
public static void main(String[] args)
{
Main m=new Main();
}
}
---------------------------------------------------
i get these exceptions
---------------------------------------------------
javax.media.j3d.MultipleParentException: Group.addChild: child already has a parent
at javax.media.j3d.GroupRetained.checkValidChild(GroupRetained.java:397)
at javax.media.j3d.GroupRetained.addChild(GroupRetained.java:406)
at javax.media.j3d.Group.addChild(Group.java:261)
at Main.<init>(Main.java:19)
at Main.main(Main.java:25)
-------------------------------------------------
someone can plz help me?

Comments

843799
Your adding ColorCube cc both to bg and trans. This is not allowed. Guess you wante add trans to bg.
843799
so how can i add trans to colorcube
843799
Yes, you are adding the cube twice. Add the cube to the TransformGroup, then add the TransformGroup to the BranchGroup. That should work.
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Post Details

Locked on Aug 31 2001
Added on Aug 2 2001
#java-3d
3 comments
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