displayobject boundary box?

I found this utility class a while back when I was trying to do the same thing.  I don't remember who posted it originally, but if I find the original post I will update this thread.

package
{
        import org.papervision3d.core.geom.renderables.Vertex3D;
        import org.papervision3d.objects.DisplayObject3D;
      
        public class BoundingBox
        {
                public var maxX :Number = 0;
                public var minX :Number = 0;
                public var maxY :Number = 0;
                public var minY :Number = 0;
                public var maxZ :Number = 0;
                public var minZ :Number = 0;
              
                public var sizeX :Number = 0;
                public var sizeY :Number = 0;
                public var sizeZ :Number = 0;
              
                public function BoundingBox( object:DisplayObject3D )
                {
                        parseMesh( object );
                      
                        sizeX = maxX - minX;
                        sizeY = maxY - minY;
                        sizeZ = maxZ - minZ;
                }
              
                private function parseMesh(object:DisplayObject3D):void
                {
                        if (object.children)
                                for each(var child:DisplayObject3D in object.children)
                                        parseMesh(child);
                      
                        if ( !object.geometry)
                                return;
                      
                        for each(var vertex:Vertex3D in object.geometry.vertices)
                        {
                                maxX = Math.max(maxX, vertex.x);
                                minX = Math.min(minX, vertex.x);
                                maxY = Math.max(maxY, vertex.y);
                                minY = Math.min(minY, vertex.y);
                                maxZ = Math.max(maxZ, vertex.z);
                                minZ = Math.min(minZ, vertex.z);
                        }
                }
        }
}

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