******************* This email 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. ******************* Hello, I am new to Nektar++ and now working on vortex-induced vibration. The filter MovingBody can output the drag and lift forces acting on the body, however, I also require the moment data. I am modifying the MovingBody filter and now struck in the extraction of boundary points (used to calculate the moment). I wonder if there exists a method to extract edge points similar to GetEdgeNormal for extraction of edge normals. It will be greatly appreciated if you could give me some suggestions about this issue. Thanks a lot. Y. Wang