{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948567,-0.316577,0.000000,0.000000,0.116274,-0.348396,0.930108,0.000000,-0.294182,0.881466,0.369426,0.000000,-1877190.761947,5624678.552299,2341543.535471,1],    "boundingVolume": {    "region": [1.892862,0.378356,1.892967,0.378426,0.000000,20.071422]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/13_13126.b3dm"}}}