Dear All I’d like to mesh a cube with a sphere on the side. i use" tetgen". There is the code FreeFem++ load “msh3” load “TetGen” load “medit” include “MeshSurface.idp” // Parameters real hs = 0.1; //mesh size on sphere int r= 0.5; int[int] M = [20, 20, 20]; real [int,int] B = [[-1, 1], …

Maybe you could use Gmsh instead. SetFactory('OpenCASCADE'); Box(1) = {-1.0,-1.0,-1.0, 2, 2, 2}; Sphere(2) = {0.9999,1,1, 0.5}; BooleanFragments{ Volume{1,2}; Delete; }{} Characteristic Length{ PointsOf{ Volume{1}; } } = 0.1; Characteristic Length{ PointsOf{ Volume{3}; } } = 0.1; Characteristic Len…

i try with Gmsh and i got this error: read mesh ok 1Mesh3, num Tetra:= 0, num Vertice:= 0 num boundary Triangles:= 0 – Mesh3::Mesh3 Erreur opening cube.mesh current line = 6 Assertion fail : (0) line :161, in file …/femlib/Mesh3dn.cpp Assertion fail : (0) line :161, in file …/femlib/Mesh3dn.…

What .geo did you mesh, how did you mesh it, how do you load it? It seems there is no cube.mesh in your folder.

I tried to mesh with the code you wrote above. I first wrote the code on a notepad and then saved it as a .geo file. Then I tried to open it with FreeFem++. is this correct?

No. You need to actually mesh the .geo using Gmsh.

okay, i was able to mesh it using Gmsh. How can i add a sphere in the middle and a quarter sphere on the side? what is the syntax in this case with gmsh? Thank you in advance for you response

Here is a pretty good Gmsh tutorial . You can also look at the numerous Gmsh examples .

I finally done it. thanks for all

Mesh a cube with a sphere on the side

General Discussion

abou (Diaw) May 24, 2020, 12:13am 3

Ok i will try with Gmsh.

Thank you for your help

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Mesh a cube with a sphere on the side

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