{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949298,-0.314377,0.000000,0.000000,0.175478,-0.529877,0.829722,0.000000,-0.260297,0.785999,0.560759,0.000000,-1661961.539980,5018495.671893,3556399.250791,1],    "boundingVolume": {    "region": [1.890527,0.595249,1.890665,0.595355,0.000000,8.762143]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1368413.b3dm"}}}