{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949321,-0.314309,0.000000,0.000000,0.175549,-0.530217,0.829490,0.000000,-0.260168,0.785796,0.561104,0.000000,-1661139.625631,5017202.195484,3558592.796356,1],    "boundingVolume": {    "region": [1.890457,0.595666,1.890594,0.595772,0.000000,8.746050]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6_1365272.b3dm"}}}