Writing and viewing Lagrangian data in openFoam and Paraview

Divyaprakash · March 16, 2024, 07:26

I have a set of points that represent a structure whose deformations are solved for at every time step. I am storing those points as follows.

Code:

std::vector<double> pposx, pposy, pposz;

How can I write them down at everytime step so that it could be read by paraFoam and be shown above the contour plots?

olesen · March 16, 2024, 07:33

Note that "paraFoam" is a shell script, not a program. If you wish to visualize x/y/z values in paraview, you'll need to see what type of import possibilities are available. Either use your values to generate a CSV file and import that, or generate a VTK file yourself. The legacy VTK format is dead easy, but you might do okay with OBJ format too. Take a look at the coordSetWriters in OpenFOAM for inspiration.

March 16, 2024, 07:26	Writing and viewing Lagrangian data in openFoam and Paraview	#1
Divyaprakash Member Divyaprakash Join Date: Jun 2014 Posts: 74 Rep Power: 12	I have a set of points that represent a structure whose deformations are solved for at every time step. I am storing those points as follows. Code: std::vector<double> pposx, pposy, pposz; How can I write them down at everytime step so that it could be read by paraFoam and be shown above the contour plots?

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March 16, 2024, 07:33		#2
olesen Senior Member Mark Olesen Join Date: Mar 2009 Location: https://olesenm.github.io/ Posts: 1,715 Rep Power: 40	Note that "paraFoam" is a shell script, not a program. If you wish to visualize x/y/z values in paraview, you'll need to see what type of import possibilities are available. Either use your values to generate a CSV file and import that, or generate a VTK file yourself. The legacy VTK format is dead easy, but you might do okay with OBJ format too. Take a look at the coordSetWriters in OpenFOAM for inspiration.