{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949606,-0.313446,0.000000,0.000000,0.174753,-0.529427,0.830162,0.000000,-0.259666,0.786675,0.560104,0.000000,-1657925.677707,5022797.128644,3552236.126926,1],    "boundingVolume": {    "region": [1.889535,0.594378,1.889697,0.594644,0.000000,8.318505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/10_1381721.b3dm"}}}