Hi all,
I have to use quadratic shape function (Q2 elements) to do my project (2D).
Previously the code works well with Q1 linear elements, when I want to
input the gird with Q2 elements generated by Gmsh, it gives the following
error:
An error occurred in line <1418> of file <../source/grid/grid_in.cc> in
function
void dealii::GridIn<2, 2>::read_msh(std::istream &) [dim = 2, spacedim
= 2]
The violated condition was:
false
The name and call sequence of the exception was:
ExcGmshUnsupportedGeometry(cell_type)
Additional Information:
The Element Identifier <8> is not supported in the deal.II library when
reading meshes in 2 dimensions.
And, it says the supported quad element should have 4 nodes and 4 edges.
Just want to check whether deal.ii support Q2 elements by Gmsh.
My mesh looks like the following
<https://lh3.googleusercontent.com/-Lk96g0ZRgFg/V-KjPDZp3cI/AAAAAAAAAKs/NZpvWhx06Y4uL6x-6b1gLVfUAayRY5p2gCLcB/s1600/11.png>
If deal.ii does not support higher order element by Gmsh, what other format
is recommended? Thanks!
Best,
Chenchen
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