{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949086,-0.315017,0.000000,0.000000,0.116140,-0.349909,0.929556,0.000000,-0.292557,0.881419,0.370824,0.000000,-1866826.980182,5624401.860727,2350417.036201,1],    "boundingVolume": {    "region": [1.891216,0.379839,1.891325,0.379954,0.000000,64.718120]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_335.b3dm"}}}