{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950267,-0.311438,0.000000,0.000000,0.173796,-0.530291,0.829811,0.000000,-0.257892,0.786887,0.560626,0.000000,-1646604.307340,5024159.006163,3555552.240382,1],    "boundingVolume": {    "region": [1.887452,0.595083,1.887552,0.595200,0.000000,8.758932]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1453612.b3dm"}}}