{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.893976,-0.448115,0.000000,0.000000,0.288755,-0.576057,0.764708,0.000000,-0.341719,0.681719,0.646906,0.000000,-2182591.082578,4354201.393632,4104185.136610,1],    "boundingVolume": {    "region": [2.035369,0.703438,2.035535,0.703601,0.000000,51.820974]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_1991686.b3dm"}}}