{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950569,-0.310513,0.000000,0.000000,0.173629,-0.531529,0.829054,0.000000,-0.256889,0.786412,0.561751,0.000000,-1640207.188772,5021149.470947,3562704.931248,1],    "boundingVolume": {    "region": [1.886480,0.596451,1.886578,0.596550,0.000000,12.750379]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/5_1389841.b3dm"}}}