{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950424,-0.310957,0.000000,0.000000,0.173513,-0.530334,0.829843,0.000000,-0.257503,0.787047,0.560579,0.000000,-1644122.071533,5025181.970123,3555257.250352,1],    "boundingVolume": {    "region": [1.886904,0.595012,1.887087,0.595158,0.000000,8.815021]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1449701.b3dm"}}}