{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950547,-0.310581,0.000000,0.000000,0.173684,-0.531569,0.829016,0.000000,-0.256934,0.786358,0.561806,0.000000,-1640492.866914,5020805.047581,3563056.413673,1],    "boundingVolume": {    "region": [1.886551,0.596518,1.886649,0.596617,0.000000,12.847205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1391209.b3dm"}}}