{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858545,-0.512738,0.000000,0.000000,0.262465,-0.439480,0.859051,0.000000,-0.439690,0.736231,0.514428,0.000000,-2806888.015519,4699949.042204,3262020.352381,1],    "boundingVolume": {    "region": [2.109085,0.540278,2.109249,0.540403,0.000000,11.005166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_249433.b3dm"}}}