{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942583,-0.333971,0.000000,0.000000,0.187159,-0.528228,0.828219,0.000000,-0.276015,0.779013,0.562987,0.000000,-1762333.429503,4973929.628782,3570562.315540,1],    "boundingVolume": {    "region": [1.911247,0.597965,1.911372,0.598027,0.000000,8.675371]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/9/21_1250230.b3dm"}}}