Mesh generators

senseiwa · Post by **senseiwa** » Fri Nov 19, 2004 3:45 am

Hi. I'm new to opensees and I have a simple question.

We have a mesh generator based on bsp trees, so all the cells in the mesh are polyhedral. Is it possible to define a mesh using custom cells?

The problem seems to be with the element associated with the MeshRegion, since it doesn't seem to handle n-cells as elements... and each mesh region must have at least one element...

Can somebody help me?

Post by **fmk** » Fri Nov 19, 2004 12:27 pm

excuse my ignorance .. but what are n-cells?

senseiwa · Post by **senseiwa** » Sun Nov 21, 2004 8:42 am

Just miswrote... n-cells are n-dimensional cells, but we're in 3D.

Just substitute n-cell with:

polyhedral cells with N faces

So: not cubical cells, not simplicial cells...

Post by **fmk** » Mon Nov 22, 2004 11:23 am

are you asking if OpenSees can handle 'polyhedral cells with N faces' elements or are you asking if there are any existing elements in OpenSees that can be used to
create your model if your mesh generator outputs n-cells? .. if the question is the first then yes you can, if the second then no.

senseiwa · Post by **senseiwa** » Thu Nov 25, 2004 5:45 am

So I have to write everything on my own... starting from newElement probably...

Ok, thanks!