Explanation on the advanced examples

What command does, is to take your, lets call it low definition mesh, and convert it to a high definition mesh - and in the end, it takes the results from the high def. mesh and projects it onto the low def. mesh.

Today Salomé has no problem reading/writing and creating high def. (quadratic or 2nd order) mesh, but it is useful to let Aster convert back and forth to save RAM-usage in Salomé

A linear mesh has two nodes connected with an element.
A quadratic mesh has two nodes and an intermediate node on the element connecting to two nodes:

Lin: *

---

*
Qua: *---*---*

See the importance of using the right type of mesh here (scroll down):
www.caelinux.org/wiki/index.php/Contrib:KeesWouters/staticshell <br /><br />Post edited by: Claus, at: 2010/01/26 16:52

@wwiki

as these two examples are quite old now (CAELinux Beta 3, 2006 if I remember well); these comments on limitations of Salome do not apply today: Salome can generate quadratic meshes directly (comment 1) and can post-process results on quadratic mesh too (comment 2).

But the 2 commands to convert the mesh from linear to quadratic (or opposite, CREA_MAILLAGE) or to project the resulting fields are still valid today as they can be usefull as mentionned by Claus.