{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950218,-0.311587,0.000000,0.000000,0.173748,-0.529864,0.830094,0.000000,-0.258104,0.787116,0.560205,0.000000,-1647956.641255,5025617.559930,3552881.394171,1],    "boundingVolume": {    "region": [1.887577,0.594568,1.887741,0.594699,0.000000,8.815362]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1458856.b3dm"}}}