{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950536,-0.310615,0.000000,0.000000,0.173715,-0.531598,0.828991,0.000000,-0.256955,0.786325,0.561843,0.000000,-1640625.482436,5020593.597282,3563291.713508,1],    "boundingVolume": {    "region": [1.886588,0.596563,1.886685,0.596662,0.000000,15.223519]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1463054.b3dm"}}}