{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949085,-0.315020,0.000000,0.000000,0.175838,-0.529760,0.829720,0.000000,-0.260829,0.785821,0.560761,0.000000,-1665359.129010,5017358.879948,3556413.747934,1],    "boundingVolume": {    "region": [1.891205,0.595252,1.891343,0.595358,0.000000,8.805649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1374921.b3dm"}}}