{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950273,-0.311418,0.000000,0.000000,0.173781,-0.530284,0.829819,0.000000,-0.257878,0.786899,0.560614,0.000000,-1646513.113000,5024239.444269,3555481.285860,1],    "boundingVolume": {    "region": [1.887431,0.595069,1.887531,0.595186,0.000000,8.758932]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1453454.b3dm"}}}