{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898059,-0.439875,0.000000,0.000000,0.283997,-0.579815,0.763650,0.000000,-0.334968,0.683877,0.648158,0.000000,-2139480.029124,4368009.941142,4112150.596171,1],    "boundingVolume": {    "region": [2.026190,0.705051,2.026322,0.705274,0.000000,8.434038]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1844580.b3dm"}}}