{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950566,-0.310522,0.000000,0.000000,0.173634,-0.531527,0.829054,0.000000,-0.256897,0.786410,0.561751,0.000000,-1640257.716537,5021134.630148,3562702.600558,1],    "boundingVolume": {    "region": [1.886490,0.596451,1.886587,0.596550,0.000000,12.750379]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/5_1389837.b3dm"}}}