{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949079,-0.315038,0.000000,0.000000,0.175847,-0.529755,0.829722,0.000000,-0.260845,0.785818,0.560759,0.000000,-1665457.934970,5017335.452228,3556400.618785,1],    "boundingVolume": {    "region": [1.891224,0.595249,1.891362,0.595356,0.000000,8.805649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1374948.b3dm"}}}