[ GiDlist ] how to change the sense of element connectivity?

[Javier Mora]

Dear Mr. Meguid,
Please, check the next lines in your .bas file:

1st test
*loop elems
*ElemsNum *elemsconec(1) *elemsconec(2) *elemsconec(3) *ElemsMat
*end elems

2nd test
*loop elems
*ElemsNum *elemsconec(3) *elemsconec(2) *elemsconec(1) *ElemsMat
*end elems

We have tested it for two surfaces with different normal sense (equivalent
to define clockwise) and it works.
If you have any additional problem, you can send your specific GiD files.

Best regards,
J.


-----Original Message-----
From: owner-gid at gatxan.cimne.upc.es
[mailto:owner-gid at gatxan.cimne.upc.es]On Behalf Of M. A. Meguid
Sent: Thursday, August 03, 2000 5:43 AM
To: gidlist at gatxan.cimne.upc.es
Subject: Re: [ GiDlist ] how to change the sense of element
connectivity?


-----Original Message-----
From: Ramon Ribó Rodríguez ramsan at cimne.upc.es
To: gidlist at gatxan.cimne.upc.es gidlist at gatxan.cimne.upc.es
Date: Wednesday, August 02, 2000 9:33 AM
Subject: Re: [ GiDlist ] how to change the sense of element connectivity?



To write the elements list, 3 options are possible:

*ElemsConec
*ElemsConec(swap)
*ElemsConec(1) *ElemsConec(2) *ElemsConec(3) *ElemsConec(4) ...

With the last option, you can construct the elements list as you
prefer.


The third option is the most flexible one but it works only if the
coordinates are in the +ve direction.

I tried a simple 2D mesh with two different coordinate systems, one with
+ve(y) and the second with -ve(y). After setteing up the configuration file
to write the *elemsconec clockwise, only the one with the +ve y worked!

Any explanation?




Best regards,


On Fri, 28 Jul 2000, you wrote:

Hi,

How do I take control over the sense of element connectivity written to
the calculation file using *EelemsConec?
and,
Is it possible to change that sense to be clockwise or anticlockwise for
both 2D and 3D meshes.

Anybody's help will be appreciated.

thanks


--
Centre Internacional de Mètodes Dr. Ramon Ribó
Numèrics en Enginyeria
http://gid.cimne.upc.es/ramsan ramsan at cimne.upc.es
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Modulo C1, Campus Norte UPC, tel. +34 93 401 74 03
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