{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950283,-0.311389,0.000000,0.000000,0.173756,-0.530260,0.829839,0.000000,-0.257861,0.786927,0.560584,0.000000,-1646402.603142,5024413.567420,3555287.702522,1],    "boundingVolume": {    "region": [1.887401,0.595032,1.887501,0.595149,0.000000,8.636880]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1346108.b3dm"}}}