{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949087,-0.315013,0.000000,0.000000,0.175833,-0.529758,0.829722,0.000000,-0.260825,0.785825,0.560758,0.000000,-1665329.866339,5017382.867617,3556393.743700,1],    "boundingVolume": {    "region": [1.891199,0.595248,1.891336,0.595354,0.000000,8.805649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1374952.b3dm"}}}