{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949307,-0.314350,0.000000,0.000000,0.175737,-0.530708,0.829135,0.000000,-0.260090,0.785446,0.561630,0.000000,-1660643.044495,5014978.018874,3561935.590219,1],    "boundingVolume": {    "region": [1.890519,0.596314,1.890618,0.596395,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416627.b3dm"}}}