{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949024,-0.315203,0.000000,0.000000,0.176121,-0.530270,0.829334,0.000000,-0.260858,0.785402,0.561335,0.000000,-1665547.719518,5014691.721529,3560060.774842,1],    "boundingVolume": {    "region": [1.891398,0.595945,1.891535,0.596051,0.000000,13.419225]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1068862.b3dm"}}}