{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950035,-0.312144,0.000000,0.000000,0.174063,-0.529774,0.830085,0.000000,-0.258563,0.786957,0.560218,0.000000,-1650885.938812,5024597.918950,3552963.074594,1],    "boundingVolume": {    "region": [1.888164,0.594584,1.888327,0.594715,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460917.b3dm"}}}