{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950706,-0.310094,0.000000,0.000000,0.173418,-0.531675,0.829004,0.000000,-0.256528,0.786478,0.561824,0.000000,-1637899.731221,5021569.699979,3563171.044526,1],    "boundingVolume": {    "region": [1.886006,0.596505,1.886171,0.596674,0.000000,8.791633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/2_1391935.b3dm"}}}