{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950566,-0.310522,0.000000,0.000000,0.173636,-0.531533,0.829050,0.000000,-0.256896,0.786406,0.561757,0.000000,-1640249.574877,5021109.481435,3562741.529898,1],    "boundingVolume": {    "region": [1.886490,0.596458,1.886587,0.596557,0.000000,12.750379]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/5_1389936.b3dm"}}}