{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950558,-0.310548,0.000000,0.000000,0.173673,-0.531595,0.829002,0.000000,-0.256902,0.786353,0.561828,0.000000,-1640292.085641,5020773.963061,3563191.738535,1],    "boundingVolume": {    "region": [1.886517,0.596544,1.886615,0.596643,0.000000,13.616695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1392077.b3dm"}}}