[GiDlist] meshing: triangular element edge alignments

[S.P.Haanappel at ctw.utwente.nl]

Hello,



I am a new GID user, studied some meshing tutorials but cannot find a
solution for the following.



Consider a defined circular area in GID. We would like to mesh this
circular area with triangles. Nevertheless, there is a restriction that
comes from our constitutive relationships. This restriction implies that
at least one edge of each triangular element, has to be aligned with one
of the global axes.



Consider for example a circular area in the global x-y-plane, with its
normal in the z-direction. Now, for example, each element should have
an edge that is aligned with the global x-axis or with the global
y-axis. An example of such a mesh is attached in this mail (generated
with Matlab):





Does anyone know, if it is possible to generate such a mesh with GID?
What are the steps involved to create such a mesh from a circular area
in GID? Some attempts were made by setting several unstructured and
structured mesh options, however, these were unsuccessful.



Thank you for your attention and I'm looking forward to a solution,

Kind regards,

Sebastiaan Haanappel

Enschede, The Netherlands



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