{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949242,-0.314547,0.000000,0.000000,0.175909,-0.530861,0.829001,0.000000,-0.260210,0.785264,0.561829,0.000000,-1661411.027270,5013818.938377,3563200.431364,1],    "boundingVolume": {    "region": [1.890725,0.596584,1.890826,0.596606,0.000000,11.140338]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/9_1418965.b3dm"}}}