{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896305,-0.443438,0.000000,0.000000,0.283835,-0.573704,0.768311,0.000000,-0.339759,0.686741,0.642613,0.000000,-2170028.572171,4386195.286317,4076871.608985,1],    "boundingVolume": {    "region": [2.030161,0.697844,2.030294,0.697963,0.000000,49.655558]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_543618.b3dm"}}}