{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950584,-0.310466,0.000000,0.000000,0.173623,-0.531597,0.829011,0.000000,-0.256837,0.786384,0.561814,0.000000,-1639876.677887,5020971.126301,3563105.701808,1],    "boundingVolume": {    "region": [1.886431,0.596528,1.886529,0.596626,0.000000,13.834999]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1391508.b3dm"}}}