{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949422,-0.314003,0.000000,0.000000,0.115694,-0.349812,0.929648,0.000000,-0.291645,0.881820,0.370591,0.000000,-1861006.380320,5626952.888770,2348936.533483,1],    "boundingVolume": {    "region": [1.890149,0.379588,1.890257,0.379703,0.000000,4.315819]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/18_74101.b3dm"}}}