{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949277,-0.314442,0.000000,0.000000,0.175690,-0.530395,0.829345,0.000000,-0.260233,0.785621,0.561318,0.000000,-1661551.799174,5016093.869448,3559953.378003,1],    "boundingVolume": {    "region": [1.890597,0.595924,1.890734,0.596031,0.000000,8.781144]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1444957.b3dm"}}}