{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950019,-0.312192,0.000000,0.000000,0.174086,-0.529755,0.830093,0.000000,-0.258605,0.786951,0.560207,0.000000,-1651152.156498,5024562.408938,3552890.075728,1],    "boundingVolume": {    "region": [1.888213,0.594570,1.888377,0.594701,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460755.b3dm"}}}