{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950022,-0.312184,0.000000,0.000000,0.174247,-0.530259,0.829737,0.000000,-0.258486,0.786613,0.560736,0.000000,-1650400.019671,5022412.702225,3556254.764477,1],    "boundingVolume": {    "region": [1.888205,0.595209,1.888369,0.595340,0.000000,8.820528]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1456742.b3dm"}}}