{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949311,-0.314338,0.000000,0.000000,0.175420,-0.529773,0.829800,0.000000,-0.260290,0.786085,0.560642,0.000000,-1661917.115639,5019038.357243,3555659.087533,1],    "boundingVolume": {    "region": [1.890475,0.595029,1.890637,0.595294,0.000000,8.562142]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1369819.b3dm"}}}