{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858262,-0.513212,0.000000,0.000000,0.262862,-0.439592,0.858873,0.000000,-0.440004,0.735833,0.514729,0.000000,-2808900.170158,4697413.050226,3263927.800572,1],    "boundingVolume": {    "region": [2.109638,0.540629,2.109802,0.540754,0.000000,16.721633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/10_421175.b3dm"}}}