{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950282,-0.311391,0.000000,0.000000,0.173762,-0.530273,0.829830,0.000000,-0.257859,0.786917,0.560598,0.000000,-1646394.283211,5024350.905161,3555379.490734,1],    "boundingVolume": {    "region": [1.887403,0.595050,1.887503,0.595167,0.000000,8.274047]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1346051.b3dm"}}}