{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950582,-0.310474,0.000000,0.000000,0.173666,-0.531715,0.828927,0.000000,-0.256817,0.786301,0.561939,0.000000,-1639750.790563,5020443.139137,3563902.157454,1],    "boundingVolume": {    "region": [1.886439,0.596679,1.886537,0.596778,0.000000,6.632441]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1327865.b3dm"}}}