{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948800,-0.315876,0.000000,0.000000,0.176283,-0.529505,0.829789,0.000000,-0.261560,0.785651,0.560659,0.000000,-1670023.894345,5016269.666156,3555767.108382,1],    "boundingVolume": {    "region": [1.892128,0.595070,1.892224,0.595294,0.000000,8.007342]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1073918.b3dm"}}}