Dear All, Regarding my previous question I found that there is an option in Gmsh to get higher order elements for reflecting curvature of the edges into .xml file. However, when I increase the order of the element from 1 to a higher order (e.g. 3) and convert the .xml file to .vtu file I got the message: /*Warning: Level 0 assertion violation*//* *//*3D deformed Jacobian not positive (element ID = 359) (first vertex ID = 206)*/ and the mesh that MeshConvert obtained from Gmsh's .msh file looks like: As far as I know "Jacobian not positive" means there are intersecting elements. What may be the reason for this problem? Regards, Kamil On 18-09-2014 11:36, Kamil Ozden wrote:
Dear All,
I mesh a circular pipe in Gmsh very coarsely as below and turn it into a xml file via MeshConvert. However, the curved edge information is not transferred to the xml file (as seen in the figure at right). How can I succeed this? Is there any way of doing it in Gmsh or is this directly related with Nektar++ ?
