e.error(e);
                callback();
            });
        }


        var baseObjectModel;


        function addGltf() {
            loadModel('./data/Office Building.glb', function (gltf) {

                const cloneModel = gltf.scene.clone();
                const boxCenter = gltf.center;
                const boxScale = gltf.scale;
                const group = new THREE.Group();
                group.add(cloneModel);
                if (boxCenter && boxScale) {
                    const { x, y,