{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949011,-0.315242,0.000000,0.000000,0.176007,-0.529853,0.829625,0.000000,-0.260983,0.785669,0.560903,0.000000,-1666343.301763,5016388.458431,3557315.491742,1],    "boundingVolume": {    "region": [1.891440,0.595423,1.891577,0.595529,0.000000,8.815893]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_1071678.b3dm"}}}