{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898122,-0.439745,0.000000,0.000000,0.284457,-0.580967,0.762602,0.000000,-0.334406,0.682980,0.649393,0.000000,-2135902.834522,4362302.342003,4120008.442571,1],    "boundingVolume": {    "region": [2.026061,0.706748,2.026162,0.706823,0.000000,8.487113]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/9_1823557.b3dm"}}}