{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950342,-0.311206,0.000000,0.000000,0.173734,-0.530539,0.829665,0.000000,-0.257655,0.786810,0.560843,0.000000,-1645088.750846,5023671.147242,3556933.537831,1],    "boundingVolume": {    "region": [1.887209,0.595345,1.887308,0.595462,0.000000,8.371193]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1345085.b3dm"}}}