{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950505,-0.310710,0.000000,0.000000,0.173727,-0.531456,0.829080,0.000000,-0.257061,0.786384,0.561712,0.000000,-1641303.086439,5020968.072100,3562457.541626,1],    "boundingVolume": {    "region": [1.886688,0.596404,1.886785,0.596503,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1389218.b3dm"}}}