{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950638,-0.310301,0.000000,0.000000,0.173527,-0.531618,0.829018,0.000000,-0.256703,0.786434,0.561805,0.000000,-1639019.172803,5021294.514516,3563044.944945,1],    "boundingVolume": {    "region": [1.886257,0.596516,1.886355,0.596615,0.000000,11.649337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_1391169.b3dm"}}}