{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950045,-0.312113,0.000000,0.000000,0.174045,-0.529778,0.830086,0.000000,-0.258538,0.786966,0.560217,0.000000,-1650724.297005,5024658.739415,3552952.238094,1],    "boundingVolume": {    "region": [1.888131,0.594582,1.888295,0.594713,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458968.b3dm"}}}