{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948793,-0.315897,0.000000,0.000000,0.176249,-0.529360,0.829888,0.000000,-0.261609,0.785740,0.560511,0.000000,-1670338.330968,5016836.336403,3554826.159764,1],    "boundingVolume": {    "region": [1.892151,0.594892,1.892247,0.595115,0.000000,8.679202]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1178520.b3dm"}}}