{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897769,-0.440466,0.000000,0.000000,0.282834,-0.576479,0.766601,0.000000,-0.336724,0.686320,0.644656,0.000000,-2150665.688056,4383544.908540,4089874.164985,1],    "boundingVolume": {    "region": [2.026850,0.700539,2.026977,0.700608,0.000000,24.262693]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_393980.b3dm"}}}