{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949521,-0.313704,0.000000,0.000000,0.175401,-0.530903,0.829082,0.000000,-0.259538,0.785571,0.561710,0.000000,-1657122.563442,5015780.795219,3562441.373398,1],    "boundingVolume": {    "region": [1.889839,0.596410,1.889938,0.596492,0.000000,7.822946]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1411300.b3dm"}}}