{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950549,-0.310576,0.000000,0.000000,0.173686,-0.531585,0.829006,0.000000,-0.256926,0.786349,0.561822,0.000000,-1640444.200237,5020749.853218,3563155.923807,1],    "boundingVolume": {    "region": [1.886546,0.596537,1.886644,0.596636,0.000000,12.847205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1391952.b3dm"}}}