![]() I get the “Assertion fail : (area > 0)” error message. regards Jonathan On 22/07/13 12:19, moritz braun wrote: > Dear Jonathan > Please find attached my python script. It does not use any other file than the python script itself to define both the geometry and the mesh size. When I try to plot the mesh in FF++ with load "gmsh" Dear Moritz, Here is a version of your script that use a python field to define the characteristic mesh size. ![]() For the MSH Options I selected Version 2 ASCII and I unchecked “Save all elements” and “Save parametric coordinates”. Update the user interface (potentially creating new widgets and windows). msh file I use: File->Export-> Test.msh file. By design, the Gmsh C API is purely functional, and only uses elementary types. I am trying to import a 2D mesh from GMSH 4.9.3 (Windows version) to FF++ v. I’m thinking that probably the most satisfying solution would be to suggest to gmsh developers to allow directly exportation under freefem. Overall, I see a solution for what I expected to do, but the facts that (i) the solution relies on a legacy format, (ii) gmshload is not documented in the freefem doc and (iii) there is no example using this in the freefem repository make me fear that the solution may not be perennal… However, I keep getting the following error: -bash: gmsh: command not found even though I have added. Importing the mesh seems to work but plotting crashes. I wrote a python script to automate the simulations. On the other hand, I was not able to succeed with more complicated geometries such as the “t4.geo” from the gmsh tutorial.Assigning labels effectively works using the solution given in this thread.Works for simple geometries (such as example t1.geo), using gmsh-format version 2 ascii (version 4 and INRIA format don’t work).I spent some time doing a number of elementary tests, starting from the examples in the gmsh tutorial directory. Thanks for the tip Aszaboa ! indeed it works this way. located on the bottom-left of the window (with a 20 pixels offset). I meshed with an element size factor of 50 in both cases.Ĥ.7.1, all elements => correct mesh, incorrect labelsĤ.7.1, unselect all elements => incorrect mesh, presumably correct labels.ĭoes anyone know how to get both a correct mesh and the correct labels? The script from Gmsh element sets corresponding to the Physical Curve generates. No matter whether you select to ignore physical groups or not, the mesh is correct but the labels are not. The binary path of GMSH has to be adapted in the macro. The macro is intended to run on Linux, OSX and Windows operating system. If you don’t save all elements you get an incorrect mesh but (presumably) correct labels. The macro you can find in the following github repository: GMSH Macro. If you save all elements you get a correct mesh, but incorrect labels. nopopup: dont popup dialog windows in scripts. If you want to reproduce this, here is the. Gmsh is an automatic three-dimensional finite element mesh generator (primarily Delaunay) with build-in. The outside mesh is red, while the inside mesh is orange, and I couldn’t figure out what it means. On the other hand, what should be a hole in the mesh is now meshed, too. uploading the mesh into freefem and asking for its labels returns 3 labels). It looks like it’s almost working in 4.7.1 (i.e. If _PATH remains empty ( None), search for the Gmsh executable in your command window: where gmsh and copy-paste the entire path in Python:ī_PATH = "full/path/to/gmsh/executable"Īlternatively, you can download the Gmsh executable from the Gmsh website and install it in a folder within your PATH environment.An update: there’s a difference between using gmsh 2.7.1 and 4.7.1. The first option is to run:ī_PATH = ("gmsh") In both cases, you need to set the bempp-cl global variable GMSH_PATH manually. There are two workarounds, which you should perform immediately after importing the bempp-cl library. However, when Gmsh is installed through Pip, the executable is called gmsh instead of gmsh.exe. I notice you are using Windows, in which case Bempp searches for gmsh.exe in the PATH. Creating meshes of the standard geometries with the shapes library requires Gmsh to be installed since it runs a Gmsh script in the background. ![]() The bempp-cl library is installed correctly but it can’t find the path of the Gmsh executable.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |