{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858267,-0.513204,0.000000,0.000000,0.262497,-0.438993,0.859291,0.000000,-0.440213,0.736199,0.514026,0.000000,-2810226.989402,4699739.518881,3259463.637554,1],    "boundingVolume": {    "region": [2.109628,0.539809,2.109792,0.539934,0.000000,78.074233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_319021.b3dm"}}}