{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949137,-0.314863,0.000000,0.000000,0.116022,-0.349742,0.929634,0.000000,-0.292439,0.881541,0.370627,0.000000,-1866072.225450,5625177.662083,2349167.893584,1],    "boundingVolume": {    "region": [1.891054,0.379627,1.891162,0.379742,0.000000,59.537360]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_75306.b3dm"}}}