{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949546,-0.313628,0.000000,0.000000,0.175315,-0.530787,0.829174,0.000000,-0.259504,0.785681,0.561572,0.000000,-1656904.360940,5016476.965739,3561568.393207,1],    "boundingVolume": {    "region": [1.889758,0.596244,1.889857,0.596326,0.000000,8.315556]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1444557.b3dm"}}}