{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949473,-0.313849,0.000000,0.000000,0.175462,-0.530819,0.829123,0.000000,-0.259671,0.785571,0.561649,0.000000,-1657969.256504,5015778.261237,3562053.580941,1],    "boundingVolume": {    "region": [1.889991,0.596336,1.890090,0.596418,0.000000,10.479850]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/14_1338098.b3dm"}}}