{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950578,-0.310485,0.000000,0.000000,0.173633,-0.531593,0.829012,0.000000,-0.256853,0.786379,0.561813,0.000000,-1639976.263287,5020942.281944,3563100.548235,1],    "boundingVolume": {    "region": [1.886450,0.596527,1.886548,0.596625,0.000000,13.834999]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1391488.b3dm"}}}