{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950560,-0.310540,0.000000,0.000000,0.173668,-0.531595,0.829003,0.000000,-0.256896,0.786356,0.561826,0.000000,-1640249.336199,5020794.109038,3563183.088911,1],    "boundingVolume": {    "region": [1.886508,0.596542,1.886606,0.596641,0.000000,13.616695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1392084.b3dm"}}}