{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950111,-0.311912,0.000000,0.000000,0.173900,-0.529714,0.830158,0.000000,-0.258394,0.787090,0.560109,0.000000,-1649803.970914,5025445.341992,3552271.712312,1],    "boundingVolume": {    "region": [1.887919,0.594452,1.888083,0.594584,0.000000,8.766006]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1458245.b3dm"}}}