{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949382,-0.314125,0.000000,0.000000,0.175213,-0.529546,0.829989,0.000000,-0.260173,0.786323,0.560362,0.000000,-1661168.707385,5020557.624991,3553875.517855,1],    "boundingVolume": {    "region": [1.890250,0.594690,1.890412,0.594955,0.000000,8.789339]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1379398.b3dm"}}}