{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950639,-0.310300,0.000000,0.000000,0.173526,-0.531617,0.829019,0.000000,-0.256702,0.786436,0.561803,0.000000,-1639015.709519,5021301.933598,3563036.141888,1],    "boundingVolume": {    "region": [1.886256,0.596514,1.886354,0.596613,0.000000,11.649337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_1391113.b3dm"}}}