[JAVA3D] How to attach ViewPlatform

[Timo Ropinski]

hi everyone, if got this code-snip defining a viewbranch. but the error is that the ViewPlatform is not attached to the BranchGroup. everytime i try to attach it, i get an MultipleParentException. does anyone know how to attach it and where it is attached right now   public class ViewBranch extends BranchGroup {   :   :   public ViewBranch(Canvas3D canvas) {     platform = new ViewPlatform();     phyBody = new PhysicalBody();     phyEnv = new PhysicalEnvironment();       view = new View();     view.setPhysicalBody(phyBody);     view.setPhysicalEnvironment(phyEnv);     view.setBackClipDistance(BACK_CLIP_DISTANCE);     view.setFrontClipDistance(FRONT_CLIP_DISTANCE);     view.attachViewPlatform(platform);     view.addCanvas3D(canvas);     :     :   } }     thanx in advance -- Timo Ropinski [EMAIL PROTECTED]  Institut f�r Informatik Tel.: (+49) 251 - 83 33753                  Westfaelische Wilhelms-Universitaet Fax: (+49) 251 - 83 33755                  Einsteinstr. 62, 48149 Muenster, Germany