{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950650,-0.310267,0.000000,0.000000,0.173406,-0.531310,0.829241,0.000000,-0.256744,0.786657,0.561474,0.000000,-1639278.957670,5022710.649921,3560942.975685,1],    "boundingVolume": {    "region": [1.886221,0.596116,1.886319,0.596215,0.000000,8.809058]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/1_1427314.b3dm"}}}