{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950747,-0.309969,0.000000,0.000000,0.173088,-0.530902,0.829568,0.000000,-0.256600,0.787052,0.560987,0.000000,-1638354.669841,5025218.809314,3557849.206236,1],    "boundingVolume": {    "region": [1.885899,0.595520,1.886014,0.595635,0.000000,8.784200]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/10_1448976.b3dm"}}}