{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950116,-0.311896,0.000000,0.000000,0.174086,-0.530311,0.829738,0.000000,-0.258248,0.786692,0.560735,0.000000,-1648879.778350,5022917.133149,3556247.575875,1],    "boundingVolume": {    "region": [1.887984,0.595273,1.887985,0.595274,0.000000,7.882177]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12.b3dm"}}}