{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950637,-0.310305,0.000000,0.000000,0.173609,-0.531860,0.828845,0.000000,-0.256653,0.786268,0.562060,0.000000,-1638698.649500,5020238.929588,3564668.506976,1],    "boundingVolume": {    "region": [1.886228,0.596790,1.886393,0.596959,0.000000,8.793080]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1327131.b3dm"}}}