{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950584,-0.310466,0.000000,0.000000,0.173621,-0.531591,0.829015,0.000000,-0.256839,0.786388,0.561808,0.000000,-1639886.647137,5020996.616825,3563065.464305,1],    "boundingVolume": {    "region": [1.886431,0.596520,1.886529,0.596619,0.000000,13.019579]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1391277.b3dm"}}}