Re: [Gmsh] Coherence 'could not find extruded vertex' error

2020-08-17 Thread Bart Deschoolmeester
Thanks Christophe, I am trying to work with GMSH. But as I run into many errors I have only two possible answers: 1/ GMSH is error prone (which I doubt somewhat ). 2/ I am not grasping some fundamental concepts, which makes GMSH unintuitive to me. So now I would like to get my head around these

Re: [Gmsh] Coherence 'could not find extruded vertex' error

2020-08-17 Thread Bart Deschoolmeester
Thank you again Jeremy, You’re solution (see below as I understand it) works. Yet, I have no clue why yours does and mine doesn’t. Bart. KanR = DefineNumber[ 0.1, Name "Parameters/KanR" ]; WanD = DefineNumber[ 0.2, Name "Parameters/WanD" ]; KanMeshsize = DefineNumber[ 0.01, Name

[Gmsh] Coherence 'could not find extruded vertex' error

2020-08-17 Thread Bart Deschoolmeester
Hello, Sorry to bother everybody again. I'm a beginner and I seem to run in on one error after another. I'm using GMSH 4.7.0 (I came across GMSH trough the onelab website) on Windows 10. See the script below (from a bigger 3D project where I try to narrow down the errors I get). I get a good 3D

Re: [Gmsh] Gaps and overlaps when using extrude command

2020-08-15 Thread Bart Deschoolmeester
Thanks again, Jeremy. You seem to have nailed the origin of the problem. It still feels as a bug to me that reloading a script one just created, gives a different result. Or am I missing something on how GMSH works? Stranger still: Action 1: Load the file below (without Coherence in the script).

[Gmsh] Mesh generation error because of rotational extrusion?

2020-08-15 Thread Bart Deschoolmeester
Hi all, See the line (below): Extrude {{0, 0, 1}, {0, 0, 0}, 1.4*Pi} { Surface{8}; Layers {25}; } Changing 1.4 to 1.5: gives errors. Extrude {{0, 0, 1}, {0, 0, 0}, 1.5*Pi} { Surface{8}; Layers {25}; } Am I doing something wrong? Bart --- KanR = DefineNumber[ 0.1, Name

Re: [Gmsh] Gaps and overlaps when using extrude command

2020-08-14 Thread Bart Deschoolmeester
Thanks Jeremy, Adding “Coherence;” to the script messes with the mesh size. Adding “Coherence;” through the tree menu in the left pane works. But when you reload that script (now with the coherence added at the end), it messes again with the mesh size. (best change the ‘KanMeshsize’ parameter

[Gmsh] Gaps and overlaps when using extrude command

2020-08-14 Thread Bart Deschoolmeester
Hi, I am a beginner. While working on a larger 3D project I noticed some gaps and overlaps. I plan to simulate the heat transfer. I assume gaps and overlaps are to be avoided to get a good simulation. Correct? I tracked down the origin of the gaps and overlaps and it seems to be the extrude