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Questions tagged [paraview]

Paraview is an open source scientific visualization application which can import, read, analyse and post-process a wide range of file types.

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Get interpolated values in user defined 2D grid Paraview

I have a 2D flow and would like to obtain the value of certain scalar field in a set of points forming a regular mesh. These points should not coincide with the nodes of the actual mesh used in the ...
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37 views

3D log density plot in ParaView

I have a .csv file of thousands of (x,y,z) point particles that I would like to visualize in ParaView. I am able to plot a 3D scatterplot using the TableToPoints, and by decreasing point opacity I can ...
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2answers
142 views

Electromagnetism FEM (FEniCS) interpolation - leakage effect

As for the background of what is going on: I'm using FEniCS that is dedicated FEM solver The problem I'm solving is magnetostatic problem where the governing PDE is $$ \bf{\nabla} \times \frac{1}{\mu}...
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XDMF version 3: how to describe uniform-grid image data?

I have the following, functional, XMDF file (version 2, or something like that) which I use to describe HDF5-stored heavy data for visualization in Paraview. I would like to upgrade to XDMF3 (just to ...
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57 views

Properly sizing ParaView plots for LaTeX [closed]

I would like to make a visualization with ParaView for a paper. In order to have a high quality look, I would like the image to be, say, 300 dpi (or vector graphics). Moreover, since I know the column ...
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1answer
81 views

Visualization of 3D streamlines in ParaView

Essentially I want to use paraview to recreate a flow visualization like the one shown in the picture above. I am able to create the 3d flow lines using a pipeline that looks like ...
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0answers
71 views

How to subtract two non-closed surfaces from each other in VTK or ParaView?

I'm trying to subtract two surfaces, which are shown below in this image, by using VTK or ParaView. I'm aware of vtkBooleanOperationPolyDataFilter but that filter needs its inputs to be closed ...
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0answers
63 views

Computing a Flux Integral in Paraview

I am currently looking into post-processing of simulation data using Paraview. I would like to compute certain integrals of field quantities. As an example, consider the following surface integral of ...
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2answers
137 views

Loading VTK tetrahedron volumes into ParaView

I want to see tetrahedron volumes generated from STL meshes in ParaView (5.5.2). From a given STL (simple cube, for example), I can generate a volume mesh using gmsh, and export it as .vtk ...
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1answer
205 views

Showing date in Paraview's Annotate Time Filter

I have a time dependent data set where each frame corresponds to a certain date. I need to show the time annotation, much like what Annotate Time Filter does, but show the date instead of time as a ...
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1answer
223 views

Recreating this 3D density plot in ParaView

I want to do somethings similar to the plot found at the bottom of this blogpost, which I found via this post in ParaView, which seems to have been the original Application used to generate the plot. ...
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1answer
287 views

C++ library unstructured mesh writer to VTK format (or similar)

I am working on a 2D unstructured code in C++. I am using gmsh to generate a 2D unstructured mesh and reading it into my program with a library called ...
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1answer
173 views

Code to output VTK point data from decomposed domain for Paraview [closed]

I am developing a parallel 2D CFD code in C++ using PETSc and would like to use it as an opportunity to learn about VTK/Paraview. Right now, I have each processor output an ASCII file for the portion ...
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82 views

Reconstruction of cells information when given mesh in polyMesh format [duplicate]

The polyMesh format used in OpenFOAM is an intelligent format for which 'cells' file, i.e. the file giving list of nodes that make a cell, is not needed. The way to reconstruct geometry data such as ...
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1answer
928 views

Volume rendering 3D VTK *.vtu UnstructuredGrid file in Paraview

I would like to volumetrically render 3D scalar data in Paraview, and I'm not sure if my inability to do so is incorrect usage of VTK or Paraview. I have built a *.vtu VTK unstructured grid file ...
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500 views

3D visualization of the results of a 2D simulation in COMSOL

Considering that COMSOL forum is dead and CFD-online is not responsive, I'm gonna try asking my question here: I have done a 2D simulation in COMSOL multiphysics. I have two independent variables x ...
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0answers
356 views

Color legend location in eps files, exported from paraview v5.4 [closed]

I am getting this strange error with paraview 5.4. For example, if I load one of the example visualisations: and if I export it as eps or pdf, then the color legend is place in the bottom left ...
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1answer
189 views

Viewing HDG FEM edge variables in vtk / paraview

For a 2D HDG code, I would like to be able to visualize the solution on the edge space between elements. Basically, this amounts to plotting the solution on the "green" nodes below. Is there a ...
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1answer
2k views

Rescaling x-axis data in Paraview

I am working with VTK legacy files containing vector information. The files have incremental extension representing a file series as defined by this link. When applying the filter "Plot Selection ...
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1answer
259 views

15 noded triangular elements in paraview

I am modelling a soil medium in plane strain and would like to determine if paraview supports the 15-noded triangular element as shown on this link. On the documentation I am only seeing elements up ...
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1answer
178 views

Generate paraview plot of an ensight .case without launching the paraview gui

Disclaimer : This question is related to computational science, but it is a purely a post-processing question so if this is on the wrong board, please tell me I would like to postprocess simulation ...
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1answer
78 views

Regarding solution vector of the wave equation

I am simulating the wave equation using FEM. For a 2D wave equation, when I visualise my output in Paraview, I see a separate solution in 'x' and 'y' direction for each node on the mesh. Therefore, if ...
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2answers
1k views

“Elevation” plot of a 2D plot - paraview vtk

I have a usual vtk file with a mesh of triangles and a scalar velocity. I want to obtain this type of plots: something like an "elevation", but in paraview I just had obtained plane plots like How ...
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1answer
58 views

Using physical parameter as a Gaussian random variable in a simple Poisson problem

I want to vary the input parameter of a physical dynamic mechanics problem, as a Gaussian Random variable and view the resulting Probability Density Function (PDF). I used the Finite Element Method to ...
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1answer
279 views

How to plot selection over time for only components, but not magnitute. of a vector in paraview?

I am doing a time evolution analysis for a structure and have already got the displacement result, which is a vector including x and y components. And I want to plot the time evolution of x and y ...
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1answer
1k views

Paraview: Multiple csv files to time series

I have multiple CSV files with point-coordinates and, possibly, multiple data values attached to them, i.e., the rows look like x y z data1 data2 ... Is there ...
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0answers
410 views

3D animation of a vector field (ParaView) [duplicate]

I am trying to create an animation of a 3d vector field in ParaView. All my data is in three matrices (201 x 201 x 201) corresponding to vectors components in x,y,z directions. And it's calculated in ...
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1answer
515 views

Visualizing the difference of two sets of VTK files

I have two sets of 300 VTK files and I want to get a graph comparing the average difference of the two sets. All files have a structured grid containing a scalar value named phi. At the end, I need a ...
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1answer
679 views

VTK File: How do I save data on a cell face?

I am writing a program that creates a vtk file with a Rectilinear Grid. I am able to save data to each one of the cells using CELL_DATA, but now, I need to save data to each one of the cell faces (x6)....
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1answer
2k views

Unwrap cylinder to plane in Paraview

I want to extract the data from the boundary surface of a cylinder (in a .vtu file) and plot it onto a plane, where the coordinates are theta (rotation angle) and Z(...
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2answers
4k views

Using numpy arrays in Paraview programmable filter

How can I access a field in Paraview's programmable filter as a numpy array? I want to: Import an existing field as a numpy array Create a similar array for output Register it as a new field for ...
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3answers
8k views

Python scripting in Paraview

I've been using the basic visualization features of Paraview. Now, I want to go further by writing python macros to handle some specific tasks. My question for the advanced users: Are there any ...
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2answers
10k views

Binary vs. ASCII file size

I need to write some data from a computation, that will be read later by Paraview (.vtu or vtk file). When it comes to file size , should I go for the ASCII format or the Binary format ?