{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950563,-0.310532,0.000000,0.000000,0.173830,-0.532108,0.828640,0.000000,-0.256776,0.786011,0.562364,0.000000,-1639485.885870,5018600.247124,3566600.409183,1],    "boundingVolume": {    "region": [1.886500,0.597193,1.886598,0.597291,0.000000,13.985162]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1384959.b3dm"}}}