{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949634,-0.313362,0.000000,0.000000,0.174953,-0.530190,0.829632,0.000000,-0.259429,0.786192,0.560892,0.000000,-1656416.769843,5019727.083812,3557242.424281,1],    "boundingVolume": {    "region": [1.889478,0.595421,1.889577,0.595503,0.000000,18.033740]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1367750.b3dm"}}}