{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857817,-0.513956,0.000000,0.000000,0.263111,-0.439144,0.859026,0.000000,-0.440721,0.735584,0.514472,0.000000,-2813472.036518,4695818.414436,3262295.287012,1],    "boundingVolume": {    "region": [2.110504,0.540329,2.110668,0.540454,0.000000,37.453941]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/7_390885.b3dm"}}}