{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950763,-0.309919,0.000000,0.000000,0.173228,-0.531424,0.829205,0.000000,-0.256445,0.786717,0.561527,0.000000,-1637369.940634,5023092.350380,3561280.578950,1],    "boundingVolume": {    "region": [1.885831,0.596120,1.885977,0.596340,0.000000,8.796510]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1423419.b3dm"}}}