HI Stan, I am not aware of current feature for this. The DomainRange is used to select elements that lie within a range and then we set up a list of elements that are in this range so this happens before ExpLIst is created in FieldConvert. Previously we have used something similar to what you suggest below by creating a mask so that might be the way to go for now. Cheers, Spencer. On 28 Apr 2021, at 13:30, Stanisław Gepner <sgepner@meil.pw.edu.pl<mailto:sgepner@meil.pw.edu.pl>> wrote: This email from sgepner@meil.pw.edu.pl<mailto:sgepner@meil.pw.edu.pl> originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list<https://spam.ic.ac.uk/SpamConsole/Senders.aspx> to disable email stamping for this address. Hi, I was wandering if it is possible to program into a Filter a possibility to be applied onto a selected range of the domain. Much like what is possible using FieldConvert -r option. I looked at the code, and there is the DomainRange, but I am not sure there is a way to use it on ExpList through which I access coordinates, physical values from within the Filter. One solution I see is to just go through what is available through GetCoords() (at initialization) and create a mask to filter out values from outside the specified range. The filter I am working on is based on quantities integrated from the fields, So I think I could create the mask at initialization and than use it at updates to zero-out values outside. But might it be, that something like this is already implemented? Any suggestions are welcome. Cheers! Stan -- Best regards, Stanisław Gepner, Ph.D. Faculty of Power and Aeronautical Engineering Nowowiejska 21/25 Str. 00-665 Warsaw, Poland phone +48 (22) 234 51 70 <khnadmohdkfpdmmb.png><https://www.pw.edu.pl/engpw> _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users