It's the same thing with transformations such as rotate, symmetrize etc. Regarding your error with copy, you have to specify the dimension of the entity to be copied, and not just the tag (check the documentation, which refers to dimTag). But I found this discussion in the Gmsh mailing list archive, which may be helpful. It's probably too late, but you never know. Is there a better way to do this than what I am trying to do with the dilation? In the end, what I want to accomplish is the following: draw a spline through a list of points, create a scaled copy of this spline, draw lines between the start and end points, and create a plane surface bounded by the two splines and lines. Assuming I was able to accomplish the same with the API, how do I then refer to the three new points that the scaled spline goes through, for example, if I wanted to draw a line between the start point of the original spline and that of the scaled spline? Am I missing something here? I have tried, for example, to call () before attempting to call copy(), but this had no effect.įinally, when I use the dilate transformation in the Gmsh GUI using Modules - Geometry - Elementary entities - Transform - Scale, checking the Apply scaling on copy option in the dialog, on the example spline from above, I indeed get a scaled version of the curve as expected, including the three points. The error code, 1, seems to indicate that the tag of the original spline ( s1) cannot be found when copy() is called. I get ValueError: ('gmshModelGeoCopy returned non-zero error code: ', 1). Secondly, when I try to make a copy of a spline like in this example: p1 = (-1, 0.5, 0, 0.1)
GMSH PYTHON FULL
But is there any way to get the full Gmsh script out of the API? I assume this has something to do with the _unrolled part.
This extension does the trick mostly, but it seems that any meshing operations (such as marking curves as transfinite) or transformations (such as dilate) are not written to the output file when using gmsh.write('test.geo_unrolled'). geo_unrolled extension is supported for the gmsh.write() function, but not just.
GMSH PYTHON CODE
I looked through the source code of the Gmsh API and found that the. There are a few issues I am running into:įirst of all, I would like to be able to write Gmsh script files (. For some reasons it’s not totally working, I have the feeling that those command lines are doing the operation but instead of doing the “apply” action it’s just doing the “ok” action, so the resulting mesh is well created but empty (0 nodes).I am trying to write a script that will automatically mesh geometries for CFD analysis using the Gmsh Python API. So to reproduce that in my python script I tried to do the operation “manually” in the interface and catch the corresponding python commands lines. That’s the solution I use when I can access the GUI. The only other solution I see to my problem is to use the function “create a FEM mesh from a shape by Gmsh mesher “ in FreeCAD. In other words, can we convert a mesh to a Fem mesh in FreeCAD ? I readed a lot about that but I’m not quite familiar with all the concepts so I maybe missed something. But now I realize that this mesh is not a Fem mesh and so I cannot complete the analysis. To accomplish that, i just define the geometrics parameters (a,b,c) from the “Part” and I create the mesh corresponding by the tessellation algorithm. That’s why I need to adapt every time the mesh with respect to the part. Therefore, I need to change, every iteration, the dimension of the beam (length, height and width). But in fact I want to include that script within an optimizer (not really useful for this geometry I agree). I followed the tutorial at and it is working well. I’m very new to FreeCAD and I want to develop a python script of the classic cantilever beam.
0 kommentar(er)
