{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950667,-0.310212,0.000000,0.000000,0.173088,-0.530440,0.829864,0.000000,-0.256893,0.787269,0.560548,0.000000,-1640226.535425,5026596.899103,3555057.724260,1],    "boundingVolume": {    "region": [1.886154,0.594990,1.886270,0.595104,0.000000,8.745480]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1449499.b3dm"}}}