{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948744,-0.316046,0.000000,0.000000,0.176172,-0.528853,0.830227,0.000000,-0.261840,0.786023,0.560006,0.000000,-1671808.807284,5018635.759344,3551615.154628,1],    "boundingVolume": {    "region": [1.892307,0.594282,1.892403,0.594505,0.000000,8.645811]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1212723.b3dm"}}}