{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858537,-0.512752,0.000000,0.000000,0.262414,-0.439379,0.859119,0.000000,-0.439737,0.736282,0.514315,0.000000,-2807186.811036,4700273.846588,3261300.009876,1],    "boundingVolume": {    "region": [2.109101,0.540146,2.109265,0.540271,0.000000,14.210500]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_239750.b3dm"}}}