{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950222,-0.311575,0.000000,0.000000,0.173745,-0.529876,0.830087,0.000000,-0.258092,0.787113,0.560215,0.000000,-1647877.638203,5025598.105777,3552945.125922,1],    "boundingVolume": {    "region": [1.887564,0.594580,1.887728,0.594711,0.000000,8.455248]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1375663.b3dm"}}}