{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950569,-0.310513,0.000000,0.000000,0.173640,-0.531563,0.829029,0.000000,-0.256881,0.786389,0.561787,0.000000,-1640158.807600,5021000.722738,3562935.282145,1],    "boundingVolume": {    "region": [1.886480,0.596495,1.886578,0.596594,0.000000,12.750379]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/5_1390681.b3dm"}}}