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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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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
68 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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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
82 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
84 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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72 views

Using VTK how to do water flow representation

I am working on a project regarding retrofitting (in a virtual environment) using VTK and I have a point cloud data which is collected using a scanner from the area where I need to retrofit. I ...
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Plotting discontinuous funtions on paraview [duplicate]

I want to plot a discontinuous function $u:[0,1]\times[0,1]\rightarrow\mathbb{R}$ defined in the square $[0,1]\times[0,1]$ of vertices (0,0), (1,0), (1,1) and (0,1), defined in a triangle $T$ of ...
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1answer
131 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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Reconstruction of cells information when given mesh in polyMesh format

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
605 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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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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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
150 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
1k 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
181 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
145 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
75 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
678 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
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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. I used the Finite Element Method to ...
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1answer
246 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
382 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
381 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
621 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
1k 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
3k 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
7k 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
9k 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 ?