{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950244,-0.311508,0.000000,0.000000,0.173702,-0.529872,0.830099,0.000000,-0.258040,0.787143,0.560198,0.000000,-1647546.268670,5025786.180968,3552833.517032,1],    "boundingVolume": {    "region": [1.887494,0.594559,1.887657,0.594690,0.000000,8.815362]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1458772.b3dm"}}}