{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949136,-0.314866,0.000000,0.000000,0.115995,-0.349657,0.929670,0.000000,-0.292453,0.881574,0.370538,0.000000,-1866165.361382,5625386.463955,2348597.688197,1],    "boundingVolume": {    "region": [1.891058,0.379530,1.891166,0.379645,0.000000,52.732610]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/18_7591.b3dm"}}}