{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896461,-0.443123,0.000000,0.000000,0.283055,-0.572635,0.769395,0.000000,-0.340000,0.687837,0.641311,0.000000,-2171556.377681,4393171.538598,4068593.904113,1],    "boundingVolume": {    "region": [2.029784,0.696150,2.029967,0.696262,0.000000,82.879141]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/7_516252.b3dm"}}}