{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950672,-0.310199,0.000000,0.000000,0.173561,-0.531914,0.828821,0.000000,-0.256557,0.786274,0.562096,0.000000,-1638088.194817,5020274.451147,3564897.507142,1],    "boundingVolume": {    "region": [1.886116,0.596833,1.886281,0.597002,0.000000,8.758891]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/4_1396691.b3dm"}}}