{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950029,-0.312160,0.000000,0.000000,0.174071,-0.529767,0.830088,0.000000,-0.258578,0.786955,0.560214,0.000000,-1650978.010039,5024588.932037,3552933.202932,1],    "boundingVolume": {    "region": [1.888181,0.594578,1.888344,0.594709,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460858.b3dm"}}}