{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950269,-0.311430,0.000000,0.000000,0.173789,-0.530283,0.829817,0.000000,-0.257888,0.786894,0.560617,0.000000,-1646577.717449,5024208.993658,3555494.309239,1],    "boundingVolume": {    "region": [1.887445,0.595072,1.887544,0.595189,0.000000,8.758932]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1453482.b3dm"}}}