{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949840,-0.312736,0.000000,0.000000,0.114767,-0.348570,0.930230,0.000000,-0.290652,0.882766,0.369115,0.000000,-1854662.847884,5632971.138811,2339573.491817,1],    "boundingVolume": {    "region": [1.888784,0.377932,1.888953,0.378181,0.000000,7.482703]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_14883.b3dm"}}}