{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950159,-0.311765,0.000000,0.000000,0.173817,-0.529740,0.830159,0.000000,-0.258272,0.787130,0.560109,0.000000,-1649027.256508,5025703.908510,3552266.589441,1],    "boundingVolume": {    "region": [1.887764,0.594451,1.887928,0.594583,0.000000,8.687905]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1458236.b3dm"}}}