[General] Paraview VTK Help ??

tek_cfd · July 3, 2011, 13:49

I am writing a program in C++ to solve the Laplace equation in 2D. The aim is to illustrate the way CFD code works. For this purpose, I would like to visualize the mesh and the data generated (.dat) using paraview (vtk ).
Could give me some indications on how to deal with this ?
I am looking forward to having your advice.
Many thanks in advance for your response.

cfd_newbie · July 4, 2011, 01:59

Quote:

Originally Posted by tek_cfd

I am writing a program in C++ to solve the Laplace equation in 2D. The aim is to illustrate the way CFD code works. For this purpose, I would like to visualize the mesh and the data generated (.dat) using paraview (vtk ).
Could give me some indications on how to deal with this ?
I am looking forward to having your advice.
Many thanks in advance for your response.

so whats preventing you from doing so ? are you able to create gird and result files in vtk file format ?

One suggestion use EnSight Binary format instead of the vtk, it's far better than vtk file format and is very well supported in ParaView.

Raashid

valgrinda · July 4, 2011, 03:42

Hei,

check this document: http://www.vtk.org/VTK/img/file-formats.pdf
This is the reference for the vtk and paraview formats.
My recommendation: use the "new" format with XML headers, this supports parallel output. Then use binary format to write the data itself for speed and file size optimization.

Cheers
Hans

tek_cfd · July 4, 2011, 22:09

Thank you for reactions.
My question is how to include the vtk in the C++ code ? and how to generate vtk format or Ensight ?

A sample of code on these points will be very useful to me.
Many thanks valgrinda for the document.

cfd_newbie · July 5, 2011, 01:00

Quote:

Originally Posted by tek_cfd

Thank you for reactions.
My question is how to include the vtk in the C++ code ? and how to generate vtk format or Ensight ?

A sample of code on these points will be very useful to me.
Many thanks valgrinda for the document.

These links will help you in creating vtk and EnSight file formats -
http://www.vtk.org/VTK/img/file-formats.pdf

For ensight gold format look into the Ensight help document on EnSight website.
https://visualization.hpc.mil/wiki/E...SE_File_Format

Docfreezzzz · July 8, 2011, 14:20

The following link will likely be helpful.

https://visualization.hpc.mil/wiki/V...eading_in_Data

I would suggest using the legacy VTK format as they are the simplest, the XML format is a bit harder to understand and to write as everything much be bracketed correctly.

July 3, 2011, 13:49	Paraview VTK Help ??	#1
tek_cfd New Member tek Join Date: Jul 2011 Posts: 8 Rep Power: 14	I am writing a program in C++ to solve the Laplace equation in 2D. The aim is to illustrate the way CFD code works. For this purpose, I would like to visualize the mesh and the data generated (.dat) using paraview (vtk ). Could give me some indications on how to deal with this ? I am looking forward to having your advice. Many thanks in advance for your response.

July 4, 2011, 03:42	VTK Fileformat	#3
valgrinda Super Moderator Hans Bihs Join Date: Jun 2009 Location: Trondheim, Norway Posts: 377 Rep Power: 17	Hei, check this document: http://www.vtk.org/VTK/img/file-formats.pdf This is the reference for the vtk and paraview formats. My recommendation: use the "new" format with XML headers, this supports parallel output. Then use binary format to write the data itself for speed and file size optimization. Cheers Hans

July 8, 2011, 14:20		#6
Docfreezzzz Member Join Date: Jul 2011 Location: US Posts: 39 Rep Power: 14	The following link will likely be helpful. https://visualization.hpc.mil/wiki/V...eading_in_Data I would suggest using the legacy VTK format as they are the simplest, the XML format is a bit harder to understand and to write as everything much be bracketed correctly. __________________ CFD engineering resource

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July 4, 2011, 22:09		#4
tek_cfd New Member tek Join Date: Jul 2011 Posts: 8 Rep Power: 14	Thank you for reactions. My question is how to include the vtk in the C++ code ? and how to generate vtk format or Ensight ? A sample of code on these points will be very useful to me. Many thanks valgrinda for the document.