{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898682,-0.438601,0.000000,0.000000,0.283264,-0.580400,0.763478,0.000000,-0.333922,0.684196,0.648361,0.000000,-2132800.778495,4370051.560603,4113442.203489,1],    "boundingVolume": {    "region": [2.024755,0.705370,2.024920,0.705489,0.000000,22.362755]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1831772.b3dm"}}}