{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949045,-0.315142,0.000000,0.000000,0.176087,-0.530283,0.829333,0.000000,-0.260807,0.785418,0.561336,0.000000,-1665222.143070,5014794.954879,3560067.616630,1],    "boundingVolume": {    "region": [1.891333,0.595946,1.891471,0.596053,0.000000,17.099766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1444999.b3dm"}}}