{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949460,-0.313887,0.000000,0.000000,0.175481,-0.530804,0.829128,0.000000,-0.259704,0.785566,0.561641,0.000000,-1658179.512756,5015745.022669,3562002.855336,1],    "boundingVolume": {    "region": [1.890031,0.596326,1.890130,0.596408,0.000000,13.684404]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1409403.b3dm"}}}