{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950725,-0.310036,0.000000,0.000000,0.173460,-0.531914,0.828842,0.000000,-0.256429,0.786338,0.562064,0.000000,-1637269.704243,5020685.994346,3564695.290414,1],    "boundingVolume": {    "region": [1.885944,0.596795,1.886110,0.596964,0.000000,8.796485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1387752.b3dm"}}}