{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950050,-0.312098,0.000000,0.000000,0.174197,-0.530269,0.829741,0.000000,-0.258417,0.786640,0.560730,0.000000,-1649955.007186,5022586.491346,3556216.077785,1],    "boundingVolume": {    "region": [1.888115,0.595202,1.888279,0.595333,0.000000,8.820070]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1454392.b3dm"}}}