{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949407,-0.314047,0.000000,0.000000,0.175413,-0.530298,0.829466,0.000000,-0.259944,0.785845,0.561138,0.000000,-1659707.720570,5017519.931289,3558811.451802,1],    "boundingVolume": {    "region": [1.890200,0.595720,1.890299,0.595801,0.000000,8.783543]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1364285.b3dm"}}}