Hi Ashok, You might be able to achieve this using the range option in FieldConvert so possibly try FieldConvert -r a,b,c,d infield.xml outfield.xml Cheers, Spencer. On 27 Nov 2016, at 12:36, ashok jallepalli <ash.nani@gmail.com<mailto:ash.nani@gmail.com>> wrote: Hi Everyone, Does any know a smart way to partition to mesh(Nektar XML) file to contain all element in a bounding box? Example: If i have 10x10 element structure mesh on domain of [0,1]x[0,1]. I need to partition the mesh such that, the new partition file has all elements in the region (a,b) to (c,d). Assuming a,b,c,d are in [0,1]. - If there is no command line option for the above scenario, How can I accomplish it using the API? I have tried using the part-only and part-only-overlapping. I am unable to accomplish what I want. Thanks in advance, Ashok. _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052