{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950470,-0.310815,0.000000,0.000000,0.173830,-0.531570,0.828985,0.000000,-0.257118,0.786265,0.561852,0.000000,-1641668.524454,5020211.865002,3563348.765466,1],    "boundingVolume": {    "region": [1.886798,0.596574,1.886896,0.596673,0.000000,10.607635]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1328808.b3dm"}}}