{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949072,-0.315059,0.000000,0.000000,0.116172,-0.349951,0.929537,0.000000,-0.292590,0.881387,0.370873,0.000000,-1867041.962692,5624199.221467,2350729.046533,1],    "boundingVolume": {    "region": [1.891261,0.379892,1.891370,0.380007,0.000000,67.897340]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/21_1122.b3dm"}}}