{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858224,-0.513275,0.000000,0.000000,0.263077,-0.439880,0.858660,0.000000,-0.439947,0.735617,0.515086,0.000000,-2808540.602400,4696038.493438,3266199.077238,1],    "boundingVolume": {    "region": [2.109710,0.541046,2.109875,0.541171,0.000000,21.749566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_538855.b3dm"}}}