{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949327,-0.314289,0.000000,0.000000,0.175556,-0.530276,0.829450,0.000000,-0.260139,0.785764,0.561162,0.000000,-1660954.514246,5016999.468484,3558962.505679,1],    "boundingVolume": {    "region": [1.890436,0.595736,1.890573,0.595843,0.000000,8.800059]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/7_1363546.b3dm"}}}