{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858312,-0.513128,0.000000,0.000000,0.262635,-0.439310,0.859086,0.000000,-0.440042,0.736061,0.514370,0.000000,-2809139.622107,4698864.044863,3261647.707148,1],    "boundingVolume": {    "region": [2.109539,0.540210,2.109704,0.540335,0.000000,10.434966]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_246239.b3dm"}}}