{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.893989,-0.448090,0.000000,0.000000,0.288745,-0.576079,0.764695,0.000000,-0.341694,0.681717,0.646921,0.000000,-2182429.359217,4354189.535817,4104283.056372,1],    "boundingVolume": {    "region": [2.035341,0.703459,2.035506,0.703621,0.000000,51.820974]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_1991724.b3dm"}}}