{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950724,-0.310038,0.000000,0.000000,0.173547,-0.532177,0.828655,0.000000,-0.256372,0.786158,0.562342,0.000000,-1636910.243265,5019542.265216,3566458.748183,1],    "boundingVolume": {    "region": [1.885947,0.597130,1.886112,0.597300,0.000000,8.620254]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1383402.b3dm"}}}