{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950220,-0.311581,0.000000,0.000000,0.174129,-0.531037,0.829264,0.000000,-0.257839,0.786324,0.561439,0.000000,-1646268.803607,5020581.215644,3560722.750146,1],    "boundingVolume": {    "region": [1.887584,0.596020,1.887722,0.596228,0.000000,8.604596]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_1431371.b3dm"}}}