adjusted center for mini2DSheetsHExMesh 2DMesh

python/MeshGenerators/mini3DSheetsHexMesh.py

@@ -179,7 +179,7 @@ class mini3DSheetsHexMesh:
         self.macroZ = macroZ
         self.dFe = sum(z_Fe)
         self.d0 = sum(z_0)
-        self.x = sum(x_i)
+        self.x = sum(x_i) + (2*sum(extend_Left_Right) if type(extend_Left_Right) != type(None) else 0)
         self.y = sum(y_i)
         self.numSheets = numSheets
         self.boundaries = boundaries