{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950517,-0.310671,0.000000,0.000000,0.173752,-0.531606,0.828979,0.000000,-0.256997,0.786297,0.561863,0.000000,-1640895.603109,5020418.466813,3563413.262306,1],    "boundingVolume": {    "region": [1.886647,0.596586,1.886744,0.596685,0.000000,15.223519]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1393453.b3dm"}}}