[Gmsh] Refined Mesh - extraneous nodes

[Mikhail Artemiev]

Hi Ashish.
I think you can try to use 'phisycal entity' to export tetrahedral mesh 
(without triangles, lines and points) into .msh file and see what changes.

>Hello Everyone,
>
>I meshed a rectangular block using TET (4 noded tetrahedron). Then, I
>refined the mesh by calling 'RefineMesh' method. The attached file has
>refined mesh data. There are 589 nodes and 2896 elements (2192 TET + 704
>line, triangular and point elements). I expected all the 589 nodes be
>part of 2192 TET elements. But, only 553 nodes form TET mesh elements.
>This means there are some line or triangular elements which are not part
>of TET mesh. My FEM solver fails which expects node number till 553 but
>there are some TET with node number more than this.
>
>Does anyone know the reason?
>
>Thanks,
>
>Ashish

Mikhail Artemiev