{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858532,-0.512759,0.000000,0.000000,0.262470,-0.439464,0.859058,0.000000,-0.439712,0.736226,0.514417,0.000000,-2807027.825417,4699914.510687,3261950.271118,1],    "boundingVolume": {    "region": [2.109110,0.540265,2.109274,0.540391,0.000000,10.589166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_248492.b3dm"}}}