{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949232,-0.314578,0.000000,0.000000,0.175536,-0.529677,0.829837,0.000000,-0.260501,0.786054,0.560587,0.000000,-1663258.783920,5018844.697259,3555307.448319,1],    "boundingVolume": {    "region": [1.890727,0.594962,1.890889,0.595227,0.000000,8.615743]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/13_1370065.b3dm"}}}