{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950873,-0.309580,0.000000,0.000000,0.172717,-0.530500,0.829903,0.000000,-0.256382,0.787477,0.560490,0.000000,-1636961.816732,5027924.198407,3554688.014034,1],    "boundingVolume": {    "region": [1.885490,0.594920,1.885605,0.595034,0.000000,8.664804]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/5_1448271.b3dm"}}}