{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948968,-0.315371,0.000000,0.000000,0.175992,-0.529569,0.829810,0.000000,-0.261149,0.785810,0.560628,0.000000,-1667397.582884,5017284.623132,3555568.970994,1],    "boundingVolume": {    "region": [1.891597,0.595049,1.891692,0.595240,0.000000,8.807851]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1074544.b3dm"}}}