[Gmsh] Problems with Plugin

[Christophe Geuzaine]

> Peter Baumann wrote:
> 
> Dear Christophe,
> 
> I'm just starting using gmsh and getdp for solving magnetic shielding
> problems in 3D.
> Following the infos of the manual and the forum the first 3d-sim was
> successful (by the way ... great program!).
> I now have a problem with the post-processing.
> When I calculate a 3d scalar field, I like to make a cut (plane)
> through the simulated box.
> As I could see from the tutorial (t9.geo) this should be possible by
> the plugin 'CutPlane'.
> The problem is, there seems to be no plugin integrated in my gmsh. If
> I open the tutorial 't9.geo', only one view opens. A right click on
> the view button doesn't show 'Plugins'.
> 
> For the moment I'm using Windows 98SE with the newest versions of gmsh
> (1.36) and getDP (0.85).
> 
> Any idea what could be the reason?

This is strange. I have access to Windows ME on my laptop and Windows XP
at work, and everything is OK here. Is there anybody on this list using
the same OS as Peter?

> 
> Or any other idea, how to produce a plane cut through a 3d scalar
> field (without changing the whole geometry file)?

With getdp, you can generate the cut directly. From the user's guide :

> 4.10 Types for PostOperation
>
> print-support: 
>
> OnSection
>     { { expression-cst-list } { expression-cst-list }
>       { expression-cst-list } }
>
>     To compute a quantity on a section of the mesh defined by three
> points (i.e. on the intersection of the mesh with a cutting a plane,
> specified by three points). Each expression-cst-list must contain
> exactly three elements (the coordinates of the points).

Or, if you want a regular grid, you can use 

> OnPlane
>     { { expression-cst-list } { expression-cst-list }
>       { expression-cst-list } } { expression-cst, expression-cst }



Christophe

-- 
Christophe Geuzaine

Tel: (626) 395-4552    http://www.geuz.org
Fax: (626) 578-0124    mailto:geuzaine at acm.caltech.edu