{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948993,-0.315297,0.000000,0.000000,0.116063,-0.349331,0.929783,0.000000,-0.292889,0.881551,0.370249,0.000000,-1868945.140777,5625232.376224,2346767.947872,1],    "boundingVolume": {    "region": [1.891511,0.379220,1.891620,0.379335,0.000000,55.528026]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/19/15_7981.b3dm"}}}