[JAVA3D] Clip Leaf Node

[Lan Wu-Cavener]

Hi, everyone:

I am having problem using Clip node. I tried to use it to change the back
clip distance for a compiled scene. But once I attached it to the scene
branchgroup, the clip distance is set to default (10 meters) in stead of
the value I specified. It looks like the node is totally ignored by J3d. My
simplified code is shown as follows. My questions are 1. can I use the clip
node to change the back clip distance of a live scene? 2. what did I do wrong?

Thanks in advance!!

Lan



                BranchGroup objRoot = new BranchGroup();

                objTransformGroup = new TransformGroup();
                Vector3f translate = new Vector3f();
                Transform3D t3d = new Transform3D();
                t3d.setTranslation( translate );
                objTransformGroup.setTransform( t3d );

                objRoot.addChild( objTransformGroup);

                ViewingPlatform viewingP = simpleU.getViewingPlatform();
                viewingP.getViewPlatform().setActivationRadius( 750.0f );

                 BoundingLeaf boundingLeaf = new BoundingLeaf( bounds );
                objTransformGroup.addChild( boundingLeaf );

                // add direct light and embient light
                objTransformGroup.addChild( dirLight );
                ... ...;

                // - Define a background, set the background color and its application 
bounds
                Background background = new Background();
                background.setColor( SFColor.bkground );
                background.setApplicationBoundingLeaf(boundingLeaf);
                objTransformGroup.addChild( background );

                // add clip node
                Clip clipLeaf = new Clip(40.d);
                clipLeaf.setApplicationBoundingLeaf(boundingLeaf);
                clipLeaf.setCapability(Clip.ALLOW_BACK_DISTANCE_WRITE );
                objTransformGroup.addChild(clipLeaf);




Lan Wu-Cavener
Research Associate and Programmer
Dept. of Landscape Architecture

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