{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950030,-0.312158,0.000000,0.000000,0.174226,-0.530243,0.829752,0.000000,-0.258470,0.786634,0.560714,0.000000,-1650294.941550,5022547.581930,3556113.984048,1],    "boundingVolume": {    "region": [1.888178,0.595182,1.888342,0.595313,0.000000,8.820528]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1456699.b3dm"}}}