{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948993,-0.315297,0.000000,0.000000,0.175975,-0.529657,0.829756,0.000000,-0.261070,0.785780,0.560707,0.000000,-1666896.681057,5017092.718836,3556071.207118,1],    "boundingVolume": {    "region": [1.891518,0.595145,1.891613,0.595335,0.000000,8.615729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/30_1073350.b3dm"}}}