[away3d] Hello! The following snippet creates an Error 1023 (Stack overflow) and I don't see why despite searching on the web and despite twicking the getter setter methods

[Leo]

base class:
//////////////////////////
/////////////////////////
package  {
        import flash.display.Sprite;
        import away3d.containers.View3D;
        import away3d.cameras.HoverCamera3D;
        import flash.events.Event;

        public class Chapter07SampleBase extends Sprite {
                protected var _view:View3D;
                protected var _camera:HoverCamera3D;

                public function Chapter07SampleBase() {
                        _createView();
                        _createScene();
                }

                protected function _createView():void
                {
                        _camera = new HoverCamera3D();
                        _camera.distance = 1000;
                        _camera.tiltAngle = 10;
                        _camera.panAngle = 180;
                        _view = new View3D();
                        _view.x = 400;
                        _view.y = 300;
                        _view.camera = _camera;

                        addChild(_view);
                        addEventListener(Event.ENTER_FRAME, _onEnterFrame);
                }

                protected function _createScene():void
                {
                        var pyramid:Pyramid = new Pyramid();
                        pyramid.width = 200;
                        pyramid.height = 200;
                        _view.scene.addChild(pyramid);
                }

                protected function _onEnterFrame(ev:Event):void
                {
                        _camera.panAngle -= (stage.mouseX - 
stage.stageWidth/2)/100;
                        _camera.hover();
                        _view.render();
                }

        }
}
////////////////////////////
// Custom Primitive Class
///////////////////////////
package
{
        import away3d.arcane;
        import away3d.primitives.AbstractPrimitive;
        import away3d.core.base.Vertex;

        use namespace arcane;

        public class Pyramid extends AbstractPrimitive
        {
                private var _height:Number;
                private var _width:Number;
                private var _depth:Number;

                public function Pyramid(init:Object = null)
                {
                        super(init);
                        buildPrimitive();
                        _height = ini.getNumber('height', 180, {min: 1});
                        _width = ini.getNumber('width', 180, {min: 1});
                        _depth = ini.getNumber('depth', 180, {min: 1});
                }
                /////////////////////////////////
                // getters and setters
                /////////////////////////////////
                public function get width():Number
                {
                        return this._width;
                }

                public  function set width(val:Number):void
                {
                        if (this._width == val) return;
                        this._width = val;
                        _primitiveDirty = true;
                }
                /////////////////////////////////
                public function get height():Number
                {
                        return this._height;
                }

                public  function set height(val:Number):void
                {
                        if (this._height == val) return;
                        this._height = val;
                        _primitiveDirty = true;
                }
                /////////////////////////////////
                public function get depth():Number
                {
                        return this._depth;
                }

                public  function set depth(val:Number):void
                {
                        if (this._depth == val) return;
                        this._depth = val;
                        _primitiveDirty = true;
                }
                /////////////////////////////
                // end getter and setters
                ////////////////////////////
                protected override function buildPrimitive():void
                {
                        var a:Vertex = createVertex(0, _height/2, 0);
                        var b:Vertex = createVertex(-_width/2, -_height/2, 
_depth/2);
                        var c:Vertex = createVertex(_width/2, -_height/2, 
_depth/2);
                        var d:Vertex = createVertex(_width/2, -_height/2, 
-_depth/2);
                        var e:Vertex = createVertex(-_width/2, -_height/2, 
_depth/2);
                        addFace(createFace(a, c, b));
                        addFace(createFace(a, d, c));
                        addFace(createFace(a, e, d));
                        addFace(createFace(a, b, e));
                        addFace(createFace(b, d, e));
                        addFace(createFace(b, c, d));
                }

        }
}