[Paraview] display boundaries of 2D geometry

Discussion:

Zenker, Dr. Matthias

2016-06-13 16:43:31 UTC

Hi,

is there a way to display the boundaries (edges) of a 2D geometry? I have converted my mesh to vtu using Elmergrid, so I have the IDs of bodies (=surfaces in 2D) and boundaries (edges) in a vtu file. Can I just display the edges having the same ID? The extract edges filter does not help. What else could I try?

Thank you for a helpful hint,

Matthias
________________________________

Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137

Cory Quammen

2016-06-13 20:27:37 UTC

Permalink

Matthias,

I'm not sure I fully understand exactly what you are trying to do, but
I will try to make a suggestion anyway. If the edges have a cell data
array giving the ID, you should be able to use the Threshold filter to
extract the edges associated with a particular body ID. Just set the
threshold values to the ID you want to see.

Hope that helps,
Cory

On Mon, Jun 13, 2016 at 6:43 PM, Zenker, Dr. Matthias

Post by Zenker, Dr. Matthias
Hi,
is there a way to display the boundaries (edges) of a 2D geometry? I have
converted my mesh to vtu using Elmergrid, so I have the IDs of bodies
(=surfaces in 2D) and boundaries (edges) in a vtu file. Can I just display
the edges having the same ID? The extract edges filter does not help. What
else could I try?
Thank you for a helpful hint,
Matthias
________________________________
Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137
_______________________________________________
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Zenker, Dr. Matthias

2016-06-14 11:11:19 UTC

Permalink

Hi Cory,

this helped indeed, thank you.
I load the mesh.vtu file and apply the Threshold filter on the GeometryID, and display that together with my simulation results. That works fine.
If I want to display several parts selectively, I can use several Thresholds, which is a bit clumsy.
It would be nice to be able to get a list of all GeometryIDs, and to check those which I want displayed. Do you know if there is a way to do that? Or on a more general basis: are there other, more elegant ways to display a geometry in ParaView?

Thanks again,

Matthias

-----Ursprüngliche Nachricht-----
Gesendet: Montag, 13. Juni 2016 22:28
An: Zenker, Dr. Matthias
Betreff: Re: [Paraview] display boundaries of 2D geometry
Matthias,
I'm not sure I fully understand exactly what you are trying to do, but
I will try to make a suggestion anyway. If the edges have a cell data
array giving the ID, you should be able to use the Threshold filter to
extract the edges associated with a particular body ID. Just set the
threshold values to the ID you want to see.
Hope that helps,
Cory
On Mon, Jun 13, 2016 at 6:43 PM, Zenker, Dr. Matthias

What

Post by Zenker, Dr. Matthias
else could I try?
Thank you for a helpful hint,
Matthias
________________________________
Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen
Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137
_______________________________________________
Powered by www.kitware.com
Visit other Kitware open-source projects at
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http://paraview.org/Wiki/ParaView
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http://public.kitware.com/mailman/listinfo/paraview

--
Cory Quammen
R&D Engineer
Kitware, Inc.

________________________________

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Cory Quammen

2016-06-14 12:27:16 UTC

Permalink

Hi Matthais,

People typically use multi-block data sets for this purpose. ParaView
has a multi-block inspector that enables you change the visibility of
the blocks in a data set. If you make each surface a block, then you
can show/hide each at will.

HTH,
Cory

On Tue, Jun 14, 2016 at 1:11 PM, Zenker, Dr. Matthias

Post by Zenker, Dr. Matthias
Hi Cory,
this helped indeed, thank you.
I load the mesh.vtu file and apply the Threshold filter on the GeometryID, and display that together with my simulation results. That works fine.
If I want to display several parts selectively, I can use several Thresholds, which is a bit clumsy.
It would be nice to be able to get a list of all GeometryIDs, and to check those which I want displayed. Do you know if there is a way to do that? Or on a more general basis: are there other, more elegant ways to display a geometry in ParaView?
Thanks again,
Matthias

What

--
Cory Quammen
R&D Engineer
Kitware, Inc.

________________________________
Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137

Zenker, Dr. Matthias

2016-06-14 15:21:45 UTC

Permalink

Hi Cory,

thank you for the hint.
However, I don't know how to make a mesh generated by Salomé a multi-block dataset. Could you tell me more or give me a pointer on where I can find that out?

Thanks,

Matthias

-----Ursprüngliche Nachricht-----
Gesendet: Dienstag, 14. Juni 2016 14:27
An: Zenker, Dr. Matthias
Betreff: Re: [Paraview] display boundaries of 2D geometry
Hi Matthais,
People typically use multi-block data sets for this purpose. ParaView has a
multi-block inspector that enables you change the visibility of the blocks in a
data set. If you make each surface a block, then you can show/hide each at
will.
HTH,
Cory
On Tue, Jun 14, 2016 at 1:11 PM, Zenker, Dr. Matthias

Post by Zenker, Dr. Matthias
Hi Cory,
this helped indeed, thank you.
I load the mesh.vtu file and apply the Threshold filter on the GeometryID,

and display that together with my simulation results. That works fine.

Post by Zenker, Dr. Matthias
If I want to display several parts selectively, I can use several Thresholds,

which is a bit clumsy.

Post by Zenker, Dr. Matthias
It would be nice to be able to get a list of all GeometryIDs, and to check

those which I want displayed. Do you know if there is a way to do that? Or on
a more general basis: are there other, more elegant ways to display a
geometry in ParaView?

Post by Zenker, Dr. Matthias
Thanks again,
Matthias

-----Ursprüngliche Nachricht-----
Gesendet: Montag, 13. Juni 2016 22:28
An: Zenker, Dr. Matthias
Betreff: Re: [Paraview] display boundaries of 2D geometry
Matthias,
I'm not sure I fully understand exactly what you are trying to do,
but I will try to make a suggestion anyway. If the edges have a cell
data array giving the ID, you should be able to use the Threshold
filter to extract the edges associated with a particular body ID.
Just set the threshold values to the ID you want to see.
Hope that helps,
Cory
On Mon, Jun 13, 2016 at 6:43 PM, Zenker, Dr. Matthias

does not help.

Post by Zenker, Dr. Matthias

What

--
Cory Quammen
R&D Engineer
Kitware, Inc.

________________________________
Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen
Stuttgart HRB 380137

--
Cory Quammen
R&D Engineer
Kitware, Inc.

Cory Quammen

2016-06-14 15:35:10 UTC

Permalink

Matthias,

Alas, I don't know much about Salomé. If no one here replies, you
might have better luck on the Salomé forum:

http://www.salome-platform.org/forum

Best,
Cory

On Tue, Jun 14, 2016 at 5:21 PM, Zenker, Dr. Matthias

Post by Zenker, Dr. Matthias
Hi Cory,
thank you for the hint.
However, I don't know how to make a mesh generated by Salomé a multi-block dataset. Could you tell me more or give me a pointer on where I can find that out?
Thanks,
Matthias

Post by Zenker, Dr. Matthias
Hi Cory,
this helped indeed, thank you.
I load the mesh.vtu file and apply the Threshold filter on the GeometryID,

and display that together with my simulation results. That works fine.

Post by Zenker, Dr. Matthias
If I want to display several parts selectively, I can use several Thresholds,

which is a bit clumsy.

Post by Zenker, Dr. Matthias
It would be nice to be able to get a list of all GeometryIDs, and to check

those which I want displayed. Do you know if there is a way to do that? Or on
a more general basis: are there other, more elegant ways to display a
geometry in ParaView?

Post by Zenker, Dr. Matthias
Thanks again,
Matthias

-----Ursprüngliche Nachricht-----
Gesendet: Montag, 13. Juni 2016 22:28
An: Zenker, Dr. Matthias
Betreff: Re: [Paraview] display boundaries of 2D geometry
Matthias,
I'm not sure I fully understand exactly what you are trying to do,
but I will try to make a suggestion anyway. If the edges have a cell
data array giving the ID, you should be able to use the Threshold
filter to extract the edges associated with a particular body ID.
Just set the threshold values to the ID you want to see.
Hope that helps,
Cory
On Mon, Jun 13, 2016 at 6:43 PM, Zenker, Dr. Matthias

does not help.

Post by Zenker, Dr. Matthias

What

--
Cory Quammen
R&D Engineer
Kitware, Inc.

________________________________
Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen
Stuttgart HRB 380137

--
Cory Quammen
R&D Engineer
Kitware, Inc.

________________________________
Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137

Samuel Key

2016-06-14 13:03:36 UTC

Permalink

Matthias,

An approach that works well for me is to exploit the "Part" feature in
either the VTK-formats or the EnSight format.

The "Part" construct in the VTK XML-format looks to me to have
originated based on the need to combine for ParaView a set of results
generated from individual CPU's. It can also be used for an assembly of
parts. In my case, material domains are used to define the "Parts." The
PV Extract Block filter displays the user's part names and can be used
to display any combination of "Parts."

Again in my case, it is important to know that point-sets, and element
edge-sets and face-sets at time(0.0) are properly defined. At
time(0.0), a mesh-by-material, point-sets, edge-sets, and face-sets (aka
side-sets) are generated, all based on the "Part" construct, for the
express purpose of visualizing these in ParaView before a simulation is run.

The key to doing this is to understand that each "Part" needs to be a
complete, standalone, displayable graphics object.

Should you or your staff be interested in exploring this approach, a set
of FORTRAN language routines can be provided.

Samuel W Key
FMA Development, LLC
1005 39th Ave. NE
Great Falls, Montana 59404
USA

What

--
Cory Quammen
R&D Engineer
Kitware, Inc.

________________________________
Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137
_______________________________________________
Powered by www.kitware.com
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Zenker, Dr. Matthias

2016-06-15 14:20:17 UTC

Permalink

Hi Samuel,

thank you! So there is a way to do what I want provided that the mesh data are converted similar to the files you sent me. Good to know.
It would probably require some coding from my side to implement that solution for my workflow, i.e. teach SalomÃ© and/or Elmer to convert the mesh into that multi-file format. Since I am short in time at the moment, I will live with the threshold filter solution Cory proposed.

Thank you again,

Matthias

Von: Samuel Key [mailto:***@bresnan.net]
Gesendet: Dienstag, 14. Juni 2016 18:45
An: Zenker, Dr. Matthias
Betreff: Re: [Paraview] display boundaries of 2D geometry

Matthias,

Here is a time(0.0) mesh datum set that you or your staff can use in PV 5.0.0 to see how PV's Extract Block filter works. Take a look at the ASCII-formatted file fmavto.mesh.pvd; it is a "mother file" that tells ParaView about all of the *.vtu files. (Also, the *.vtu can be loaded individually if you like.)

Samuel W. Key
FMS Development, LLC
1005 39th Ave. NE
Great Falls, Montana 59404
USA

On 6/14/2016 9:21 AM, Zenker, Dr. Matthias wrote:

Hi Cory,

thank you for the hint.

However, I don't know how to make a mesh generated by SalomÃ© a multi-block dataset. Could you tell me more or give me a pointer on where I can find that out?

Thanks,

Matthias

-----UrsprÃŒngliche Nachricht-----

Von: Cory Quammen [mailto:***@kitware.com]

Gesendet: Dienstag, 14. Juni 2016 14:27

An: Zenker, Dr. Matthias

Cc: ***@paraview.org<mailto:***@paraview.org>

Betreff: Re: [Paraview] display boundaries of 2D geometry

Hi Matthais,

People typically use multi-block data sets for this purpose. ParaView has a

multi-block inspector that enables you change the visibility of the blocks in a

data set. If you make each surface a block, then you can show/hide each at

will.

HTH,

Cory

On Tue, Jun 14, 2016 at 1:11 PM, Zenker, Dr. Matthias

<***@erbe-med.com><mailto:***@erbe-med.com> wrote:

Hi Cory,

this helped indeed, thank you.

I load the mesh.vtu file and apply the Threshold filter on the GeometryID,

and display that together with my simulation results. That works fine.

If I want to display several parts selectively, I can use several Thresholds,

which is a bit clumsy.

It would be nice to be able to get a list of all GeometryIDs, and to check

those which I want displayed. Do you know if there is a way to do that? Or on

a more general basis: are there other, more elegant ways to display a

geometry in ParaView?

Thanks again,

Matthias

-----UrsprÃŒngliche Nachricht-----

Von: Cory Quammen [mailto:***@kitware.com]

Gesendet: Montag, 13. Juni 2016 22:28

An: Zenker, Dr. Matthias

Cc: ***@paraview.org<mailto:***@paraview.org>

Betreff: Re: [Paraview] display boundaries of 2D geometry

Matthias,

I'm not sure I fully understand exactly what you are trying to do,

but I will try to make a suggestion anyway. If the edges have a cell

data array giving the ID, you should be able to use the Threshold

filter to extract the edges associated with a particular body ID.

Just set the threshold values to the ID you want to see.

Hope that helps,

Cory

On Mon, Jun 13, 2016 at 6:43 PM, Zenker, Dr. Matthias

<***@erbe-med.com><mailto:***@erbe-med.com> wrote:

Hi,

is there a way to display the boundaries (edges) of a 2D geometry?

I have converted my mesh to vtu using Elmergrid, so I have the IDs

of bodies (=surfaces in 2D) and boundaries (edges) in a vtu file.

Can I just display the edges having the same ID? The extract edges filter

does not help.

What

else could I try?

Thank you for a helpful hint,

Matthias

________________________________

Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen

Geschaeftsfuehrer:

Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB

380137

_______________________________________________

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--
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R&D Engineer

Kitware, Inc.

________________________________

Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen

Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht:

Stuttgart HRB 380137
--
Cory Quammen

R&D Engineer

Kitware, Inc.

________________________________

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