{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949378,-0.314137,0.000000,0.000000,0.175219,-0.529543,0.829989,0.000000,-0.260184,0.786320,0.560361,0.000000,-1661234.292659,5020539.371265,3553870.680659,1],    "boundingVolume": {    "region": [1.890263,0.594689,1.890425,0.594955,0.000000,8.789339]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1379403.b3dm"}}}