Dears,
I would like to know how the *.lin file in ACSII format working. I would
like more information about the *.lin file. I need understand this format to
create a conversor of loads and constraints between gid and my software and
then create a shape optimization solver.
Sincerally
–
Rodrigo Alves Augusto
-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20080513/94280303/attachment.htm
Hello,
First of all, thanks for the answer of my question titled
“Simultaneous displaying vectors if both Prisma and Hexahedra
elements exist.” very recently.
I have another request.
Quote from GiD manual:
“When using results defined over gauss points, they are extrapolated
to the nodes. So discontinuities can appear between adjacent elements.”
I agree that discontinuities between adjacent elements of gauss
results are mathematically correct and basically praise this
feature without hesitation.
However, as you know, many customes often want to draw
continuous contour lines even for gauss results (it is often 1
center result). Although extrapolating gauss results to nodal
ones are always not correct from mathematical viewpoint,
many competetive post processors can do it with sacrificing correctness.
Please consider a case which made only from tetra elements and having
vector results at element centers, I was not able to draw any
contour plot(I often want to plot contour lines on cut plane).
I eagerly ask CIMNE to add a feature so that one can draw “incorrect”
contour lines especially on cut plane from only gauss resuls.
Regards,
It exists an special menu “View resulst-Smooth contour fill” to do a
contour fill with gauss results averaged on nodes to have a continuous
field.
In any case I recommend you to write your results as nodally averaged
instead of on gauss points, some features are not implemented for gauss
results.
I didn’t understand your last sentence:
“I eagerly ask CIMNE to add a feature so that one can draw “incorrect”
contour lines especially on cut plane from only gauss resuls.”
What do you want to do?
Enrique Escolano
----- Original Message -----
From: “HEMMI, Shigeru” shigeru.hemmi at ctc-g.co.jp
To: gidlist at gid.cimne.upc.edu
Sent: Wednesday, May 14, 2008 6:19 AM
Subject: [GiDlist] I need “incorrect” contour plot of gauss results on a cut
plane
Hello,
First of all, thanks for the answer of my question titled
"Simultaneous displaying vectors if both Prisma and Hexahedra
elements exist." very recently.
I have another request.
Quote from GiD manual:
"When using results defined over gauss points, they are extrapolated
to the nodes. So discontinuities can appear between adjacent elements."
I agree that discontinuities between adjacent elements of gauss
results are mathematically correct and basically praise this
feature without hesitation.
However, as you know, many customes often want to draw
continuous contour lines even for gauss results (it is often 1
center result). Although extrapolating gauss results to nodal
ones are always not correct from mathematical viewpoint,
many competetive post processors can do it with sacrificing correctness.
Please consider a case which made only from tetra elements and having
vector results at element centers, I was not able to draw any
contour plot(I often want to plot contour lines on cut plane).
I eagerly ask CIMNE to add a feature so that one can draw “incorrect”
contour lines especially on cut plane from only gauss resuls.
Regards,
GiDlist mailing list
GiDlist at gid.cimne.upc.edu
_http://gid.cimne.upc.es/mailman/listinfo/gidlist_
Dear Enrique Escolano,
Thanks for the answer.
It exists an special menu “View resulst-Smooth contour fill” to do a
contour fill with gauss results averaged on nodes to have a continuous
field.
If I move to “Do cuts-cut plane” menu after “View resulst-Smooth
contour fill” , then GiD message box says “At the moment, gaussian
results can not be drawn on cuts.”.
This is not welcome for me.
My hope is to draw "gauss results averaged on nodes ", especially on
cut plane.
In any case I recommend you to write your results as nodally averaged
instead of on gauss points, some features are not implemented for gauss
results.
I believe GiD should provide a feature of nodal plot even if user
supplied results are gauss ones. FYI, other postprocessors, e.g., FEMAP
can do it without difficulty; without enforcing extra works to solver
developers.
I didn’t understand your last sentence:
"I eagerly ask CIMNE to add a feature so that one can draw “incorrect”
contour lines especially on cut plane from only gauss resuls."
What do you want to do?
Sorry my poor English, here, simply I repeated what I want to do, i.e.,
please provide feature of contour plot of gauss results on cut plane.
As I said some features that exists for ‘nodal results’ are not implemented
yet for ‘gauss results’.
We are implementing them but there are a lot of kind of elements: point,
sphere, circle, line, triangle, quadrilateral, tetrahedra, hexahedra, prism,
pyramid with linear and quadratic cases, and with different gauss points
definitions.
Download our last beta versions, features like cuts with gauss results are
already implemented for most of this elements.
Note. smoothed gauss result is only implemented for ‘contour fill’, and take
also into account that it requires more memory resources to allocate the
gaussian and the nodal averaged results.
Regards
Enrique
----- Original Message -----
From: “HEMMI, Shigeru” shigeru.hemmi at ctc-g.co.jp
To: gidlist at gid.cimne.upc.edu
Sent: Thursday, May 15, 2008 2:18 AM
Subject: Re: [GiDlist] I need “incorrect” contour plot of gauss results on a
cut plane
Dear Enrique Escolano,
Thanks for the answer.
It exists an special menu “View resulst-Smooth contour fill” to do a
contour fill with gauss results averaged on nodes to have a continuous
field.
If I move to “Do cuts-cut plane” menu after "View resulst-Smooth
contour fill" , then GiD message box says "At the moment, gaussian
results can not be drawn on cuts.".
This is not welcome for me.
My hope is to draw "gauss results averaged on nodes ", especially on
cut plane.
In any case I recommend you to write your results as nodally averaged
instead of on gauss points, some features are not implemented for gauss
results.
I believe GiD should provide a feature of nodal plot even if user
supplied results are gauss ones. FYI, other postprocessors, e.g., FEMAP
can do it without difficulty; without enforcing extra works to solver
developers.
I didn’t understand your last sentence:
"I eagerly ask CIMNE to add a feature so that one can draw “incorrect”
contour lines especially on cut plane from only gauss resuls."
What do you want to do?
Sorry my poor English, here, simply I repeated what I want to do, i.e.,
please provide feature of contour plot of gauss results on cut plane.
GiDlist mailing list
GiDlist at gid.cimne.upc.edu
_http://gid.cimne.upc.es/mailman/listinfo/gidlist_