{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950347,-0.311191,0.000000,0.000000,0.173647,-0.530300,0.829836,0.000000,-0.257696,0.786977,0.560588,0.000000,-1645351.539573,5024737.585470,3555316.163201,1],    "boundingVolume": {    "region": [1.887193,0.595038,1.887293,0.595155,0.000000,8.708325]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1453070.b3dm"}}}