{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950468,-0.310822,0.000000,0.000000,0.173839,-0.531585,0.828974,0.000000,-0.257120,0.786252,0.561870,0.000000,-1641680.522090,5020130.065058,3563457.744516,1],    "boundingVolume": {    "region": [1.886805,0.596595,1.886903,0.596693,0.000000,19.090562]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1393724.b3dm"}}}