{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950565,-0.310525,0.000000,0.000000,0.173661,-0.531603,0.828999,0.000000,-0.256882,0.786357,0.561832,0.000000,-1640162.508879,5020798.669063,3563216.407172,1],    "boundingVolume": {    "region": [1.886492,0.596549,1.886590,0.596648,0.000000,13.616695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1392262.b3dm"}}}