Thank you so much Bruno On Tuesday, December 5, 2017 at 11:27:15 AM UTC-5, Narendra Nanal wrote: > > > Hello All, > > I am trying to read a mesh in dealii using abaqus input file. But I am > getting following error- > While sorting the cells that will be passed for creating a > Triangulation object, deal.II found that some but not all cells have a > negative volume. (If all cells had a negative volume, they would simply all > have been inverted.) This usually happens in hand-generated meshes if one > accidentally uses an incorrect convention for ordering the vertices in one > or more cells; in that case, you may want to double check that you > specified the vertex indices in their correct order. If you are reading a > mesh that was created by a mesh generator, then this exception indicates > that some of the cells created are so badly distorted that their volume > becomes negative; this commonly occurs at complex geometric features, and > you may see if the problem can be fixed by playing with the parameters that > control mesh properties in your mesh generator, such as the number of > cells, the mesh density, etc. > -------------------------------------------------------- > > When the input file is imported in abaqus it is working fine. Please see > attached pictures.I am not sure if something is wrong with the mesh. Kindly > guide me on how to resolve this error. Thanks in advance. > > Regards, > Narendra Nanal >
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