{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950207,-0.311621,0.000000,0.000000,0.174275,-0.531408,0.828996,0.000000,-0.257787,0.786056,0.561837,0.000000,-1645943.580404,5018880.409227,3563252.855548,1],    "boundingVolume": {    "region": [1.887618,0.596512,1.887770,0.596698,0.000000,8.804214]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1399250.b3dm"}}}