{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.893933,-0.448201,0.000000,0.000000,0.288835,-0.576080,0.764661,0.000000,-0.341763,0.681644,0.646962,0.000000,-2182873.246825,4353723.248270,4104539.911403,1],    "boundingVolume": {    "region": [2.035465,0.703512,2.035631,0.703674,0.000000,51.820974]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_1871091.b3dm"}}}