{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949089,-0.315009,0.000000,0.000000,0.175816,-0.529715,0.829754,0.000000,-0.260831,0.785856,0.560712,0.000000,-1665370.604323,5017580.241531,3556098.185054,1],    "boundingVolume": {    "region": [1.891194,0.595192,1.891331,0.595298,0.000000,8.820004]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375250.b3dm"}}}