{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858903,-0.512138,0.000000,0.000000,0.261987,-0.439377,0.859250,0.000000,-0.439278,0.736710,0.514094,0.000000,-2804255.609246,4703001.302479,3259898.861346,1],    "boundingVolume": {    "region": [2.108386,0.539889,2.108550,0.540014,0.000000,13.149966]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/0/3_215973.b3dm"}}}