# [Gmsh] Computing mean

**Christophe Geuzaine**
geuzaine at acm.caltech.edu

*Sat Feb 8 02:08:00 CET 2003*

"Pascal A. Dupuis" wrote:
>*
*>* Hello,
*>*
*>* In a design, I have computed the electrical field on a plane surface. I
*>* would like to compute the mean value, that is, ponderate each sample by the
*>* value of the basic surface on wich it was computed. How can this be done ?
*>*
*
3 possible solutions:
- In getdp, you can use the function ElementVol[] to get the volume of
the element (the surface for 2D elements)
- You can also write a plugin for Gmsh that computes stuff like that on
an arbitrary view
- Otherwise, just write a small program/script that parses the map and
computes the surfaces using the node coordinates.
Christophe
--
Christophe Geuzaine
Tel: (626) 395-4552 http://www.geuz.org
Fax: (626) 578-0124 mailto:geuzaine at acm.caltech.edu