{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949270,-0.314463,0.000000,0.000000,0.175716,-0.530434,0.829316,0.000000,-0.260240,0.785587,0.561362,0.000000,-1661598.738654,5015877.156047,3560234.910704,1],    "boundingVolume": {    "region": [1.890618,0.595978,1.890755,0.596084,0.000000,8.475046]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1360216.b3dm"}}}