{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950029,-0.312162,0.000000,0.000000,0.174050,-0.529702,0.830134,0.000000,-0.258593,0.786999,0.560145,0.000000,-1651076.322217,5024866.220091,3552498.268291,1],    "boundingVolume": {    "region": [1.888182,0.594495,1.888346,0.594627,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460275.b3dm"}}}