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Using special-purpose groups
Switch example code

  • Build children 
    Shape3D zero = new Shape3D( geom0, app0 );
Shape3D one  = new Shape3D( geom1, app1 );
Shape2D two  = new Shape2D( geom2, app2 );

  • Add them to the switch group 
    Switch mySwitch = new Switch( );
mySwitch.setCapability( Switch.ALLOW_SWITCH_WRITE );
mySwitch.addChild( zero );
mySwitch.addChild( one );
mySwitch.addChild( two );