{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858660,-0.512546,0.000000,0.000000,0.262405,-0.439603,0.859007,0.000000,-0.439503,0.736291,0.514503,0.000000,-2805695.006929,4700330.051834,3262494.474201,1],    "boundingVolume": {    "region": [2.108862,0.540365,2.109026,0.540491,0.000000,25.708166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/7_255528.b3dm"}}}