{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950190,-0.311672,0.000000,0.000000,0.174246,-0.531220,0.829122,0.000000,-0.257870,0.786164,0.561649,0.000000,-1646469.421924,5019562.410514,3562057.104450,1],    "boundingVolume": {    "region": [1.887680,0.596273,1.887818,0.596482,0.000000,8.750392]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/3_1397560.b3dm"}}}