{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950216,-0.311592,0.000000,0.000000,0.174243,-0.531362,0.829032,0.000000,-0.257775,0.786099,0.561784,0.000000,-1645863.641870,5019150.706799,3562911.337848,1],    "boundingVolume": {    "region": [1.887588,0.596448,1.887740,0.596633,0.000000,8.785472]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1398556.b3dm"}}}