{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852949,-0.521994,0.000000,0.000000,0.269323,-0.440079,0.856619,0.000000,-0.446347,0.729341,0.518494,0.000000,-2849428.925254,4656025.742060,3287849.906841,1],    "boundingVolume": {    "region": [2.119937,0.545047,2.120030,0.545131,0.000000,100.381366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_4375.b3dm"}}}