{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950484,-0.310774,0.000000,0.000000,0.173442,-0.530462,0.829776,0.000000,-0.257331,0.787033,0.560678,0.000000,-1643024.650492,5025093.292977,3555885.630114,1],    "boundingVolume": {    "region": [1.886754,0.595146,1.886853,0.595263,0.000000,8.787647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1450088.b3dm"}}}