{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949482,-0.313823,0.000000,0.000000,0.114635,-0.346831,0.930896,0.000000,-0.291873,0.883072,0.367415,0.000000,-1862448.210167,5634902.008599,2328786.733224,1],    "boundingVolume": {    "region": [1.889929,0.376103,1.890097,0.376353,0.000000,26.403536]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_28921.b3dm"}}}