# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=17

[Latest](https://discourse.paraview.org/latest.md) · [Categories](https://discourse.paraview.org/categories.md) · [Tags](https://discourse.paraview.org/tags.md)

**Page:** 18

---

## [Fluent dat file export on gold-ensight Paraview format creating mesh lines](https://discourse.paraview.org/t/fluent-dat-file-export-on-gold-ensight-paraview-format-creating-mesh-lines/16500)

<div class="topic-metadata">

**Author:** [@scabo](https://discourse.paraview.org/u/scabo)\
**Replies:** 10\
**Last updated:** [May 20, 2025, 7:24am UTC](https://discourse.paraview.org/t/fluent-dat-file-export-on-gold-ensight-paraview-format-creating-mesh-lines/16500 "2025-05-20T07:24:19Z")

</div>

Hi, I am exporting fluent results in gold-ensight format to open in paraview. After opening the 3D pipe case in paraview .encase, when i am taking a slice of the pipe cross-section, it is showing the mesh lines even when…

---

## [Difference between Save Animation, Save Screenshot and Export Scene](https://discourse.paraview.org/t/difference-between-save-animation-save-screenshot-and-export-scene/16583)

<div class="topic-metadata">

**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 8\
**Last updated:** [May 20, 2025, 7:23am UTC](https://discourse.paraview.org/t/difference-between-save-animation-save-screenshot-and-export-scene/16583 "2025-05-20T07:23:42Z")

</div>

Could someone clarify what the difference is between Save Animation (i.e., create a movie), Save Screenshot (grab a snapshot of the screen) and Export Scene? My question is, what is Export Scene compared to the other tw…

---

## [How to set the color scale legend format using internal methods in paraview?](https://discourse.paraview.org/t/how-to-set-the-color-scale-legend-format-using-internal-methods-in-paraview/16460)

<div class="topic-metadata">

**Author:** [@flipper](https://discourse.paraview.org/u/flipper)\
**Replies:** 2\
**Last updated:** [May 20, 2025, 3:19am UTC](https://discourse.paraview.org/t/how-to-set-the-color-scale-legend-format-using-internal-methods-in-paraview/16460 "2025-05-20T03:19:16Z")

</div>

Hi, I have called paraview in my Qt application and while initializing paraview, what is the method I can call to set the color scale legend format to regular numbers instead of scientific notation. How can I achieve thi…

---

## [error/warning message using calculator](https://discourse.paraview.org/t/error-warning-message-using-calculator/16661)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 1\
**Last updated:** [May 19, 2025, 3:28pm UTC](https://discourse.paraview.org/t/error-warning-message-using-calculator/16661 "2025-05-19T15:28:55Z")

</div>

Hello, I am getting an warning (and also an error) for using the calculator filter to calculate the momentum of water in a simulation, I am using in a python script the following lines: filterForData = Calculator(regis…

---

## [Help with obtaining a binary mask from Polygon Mesh](https://discourse.paraview.org/t/help-with-obtaining-a-binary-mask-from-polygon-mesh/16592)

<div class="topic-metadata">

**Author:** [@Martin\_Kozar](https://discourse.paraview.org/u/Martin_Kozar)\
**Replies:** 1\
**Last updated:** [May 18, 2025, 3:33pm UTC](https://discourse.paraview.org/t/help-with-obtaining-a-binary-mask-from-polygon-mesh/16592 "2025-05-18T15:33:18Z")

</div>

Hi everyone! I am brand new to using ParaView. My version is 5.10.1. I have downloaded the data from Dataset for modeling of a multiscale human cerebrovasculature where this group created a cerebral vasculature model I w…

---

## [Mass flow rate of the particle calculation in paraview](https://discourse.paraview.org/t/mass-flow-rate-of-the-particle-calculation-in-paraview/16593)

<div class="topic-metadata">

**Author:** [@Siddhartha\_Roy](https://discourse.paraview.org/u/Siddhartha_Roy)\
**Replies:** 1\
**Last updated:** [May 17, 2025, 3:01pm UTC](https://discourse.paraview.org/t/mass-flow-rate-of-the-particle-calculation-in-paraview/16593 "2025-05-17T15:01:16Z")

</div>

The MFix DEM simulation is pure granular flow of solid particles. I am calculating the mass flow rate at the plane using mass flow rate monitoring. I got average mass flow rate of 0.001002kg/s at steady state from 0.2s t…

---

## [Paraview binaries client-server poor performance with large number of processes](https://discourse.paraview.org/t/paraview-binaries-client-server-poor-performance-with-large-number-of-processes/16640)

<div class="topic-metadata">

**Author:** [@98Alto](https://discourse.paraview.org/u/98Alto)\
**Replies:** 1\
**Last updated:** [May 16, 2025, 11:56am UTC](https://discourse.paraview.org/t/paraview-binaries-client-server-poor-performance-with-large-number-of-processes/16640 "2025-05-16T11:56:00Z")

</div>

Hi guys, I’m running the ParaView 5.13.1 binaries in a client-server set up, with a beefy server. I am also using the MPI that ships with the binaries. I’ve noticed that when I ramp up the number of processes/cores, th…

---

## [Stream tracer animation with Integration time](https://discourse.paraview.org/t/stream-tracer-animation-with-integration-time/16635)

<div class="topic-metadata">

**Author:** [@fatihmtlm](https://discourse.paraview.org/u/fatihmtlm)\
**Replies:** 1\
**Last updated:** [May 16, 2025, 8:02am UTC](https://discourse.paraview.org/t/stream-tracer-animation-with-integration-time/16635 "2025-05-16T08:02:03Z")

</div>

I achieved smooth, continuous animations using the Iso Volume filter, but as I increase the number of streamlines it starts to slow down noticeably. The Threshold filter is much faster, yet the result is choppy and exhib…

---

## [Extracting a surface](https://discourse.paraview.org/t/extracting-a-surface/3386)

<div class="topic-metadata">

**Author:** [@vishruthdilip](https://discourse.paraview.org/u/vishruthdilip)\
**Replies:** 2\
**Last updated:** [May 16, 2025, 2:04am UTC](https://discourse.paraview.org/t/extracting-a-surface/3386 "2025-05-16T02:04:25Z")

</div>

Hi, I need to create a surface across which I need to measure the mass flow rate. My geometry is such that I have two circular surfaces, the edges of which are concentric circles. For instance, I need to extract the…

---

## [paraview VR with collaboration](https://discourse.paraview.org/t/paraview-vr-with-collaboration/16642)

<div class="topic-metadata">

**Author:** [@goatchurchprime](https://discourse.paraview.org/u/goatchurchprime)\
**Replies:** 1\
**Last updated:** [May 15, 2025, 3:49pm UTC](https://discourse.paraview.org/t/paraview-vr-with-collaboration/16642 "2025-05-15T15:49:45Z")

</div>

I’m trying to test out the Paraview VR collaboration feature announced hereL https://www.kitware.com/collaboration-between-caveinteraction-and-xrinterface-plugins/ But the only version of Paraview that I can download t…

---

## [Rotating direction for streamlines out from line source?](https://discourse.paraview.org/t/rotating-direction-for-streamlines-out-from-line-source/16608)

<div class="topic-metadata">

**Author:** [@Devin\_Richard\_Bayly](https://discourse.paraview.org/u/Devin_Richard_Bayly)\
**Replies:** 3\
**Last updated:** [May 14, 2025, 1:16am UTC](https://discourse.paraview.org/t/rotating-direction-for-streamlines-out-from-line-source/16608 "2025-05-14T01:16:38Z")

</div>

Hi there, I’m trying to make some stream lines that resemble air velocity within a volume, but I’m struggling to get the streamlines to leave the source line in the right direction. It seems like they sort of randomly p…

---

## [Using InteractiveLine widget in Python plugin](https://discourse.paraview.org/t/using-interactiveline-widget-in-python-plugin/16606)

<div class="topic-metadata">

**Author:** [@elynch](https://discourse.paraview.org/u/elynch)\
**Replies:** 1\
**Last updated:** [May 12, 2025, 2:57pm UTC](https://discourse.paraview.org/t/using-interactiveline-widget-in-python-plugin/16606 "2025-05-12T14:57:20Z")

</div>

I’m trying to write a Python plugin with a line, defined by two points, as one of its inputs. If possible, I would like to use ParaView’s InteractiveLine widget to select the points so the user can interactively pick th…

---

## [PHyperTreeGrid](https://discourse.paraview.org/t/phypertreegrid/16605)

<div class="topic-metadata">

**Author:** [@colive](https://discourse.paraview.org/u/colive)\
**Replies:** 5\
**Last updated:** [May 12, 2025, 10:37am UTC](https://discourse.paraview.org/t/phypertreegrid/16605 "2025-05-12T10:37:37Z")

</div>

Hi, I would consider myself familiar with the XML file format for HyperTreeGrids at this point. I also started looking into PHTG format which seems to work quite well, except when I include any fields. For example, \<V…

---

## [Extract Clip Filter parameters](https://discourse.paraview.org/t/extract-clip-filter-parameters/16579)

<div class="topic-metadata">

**Author:** [@madmoonman](https://discourse.paraview.org/u/madmoonman)\
**Replies:** 3\
**Last updated:** [May 12, 2025, 6:48am UTC](https://discourse.paraview.org/t/extract-clip-filter-parameters/16579 "2025-05-12T06:48:33Z")

</div>

Hey PV experts, I am working on a simple task: I want to extract data from a Clip filter. I am almost there, just want to add a little check at the beginning of my macro to verify the user selected a Clip filter with Cl…

---

## [Saving images rendered with optiX and tuning render parameters](https://discourse.paraview.org/t/saving-images-rendered-with-optix-and-tuning-render-parameters/16601)

<div class="topic-metadata">

**Author:** [@David\_Cortes](https://discourse.paraview.org/u/David_Cortes)\
**Replies:** 0\
**Last updated:** [May 9, 2025, 4:48pm UTC](https://discourse.paraview.org/t/saving-images-rendered-with-optix-and-tuning-render-parameters/16601 "2025-05-09T16:48:48Z")

</div>

Hi, I’m rendering a scene using the optiX pathtracer. I have a couple of questions: What’s the best combination of numbers for Samples per Pixel and Progressive Passes, for a final image? I’m setting 64 and 1024, resp…

---

## [Paraview Sample Over Line](https://discourse.paraview.org/t/paraview-sample-over-line/16587)

<div class="topic-metadata">

**Author:** [@Frankx9](https://discourse.paraview.org/u/Frankx9)\
**Replies:** 4\
**Last updated:** [May 9, 2025, 5:41am UTC](https://discourse.paraview.org/t/paraview-sample-over-line/16587 "2025-05-09T05:41:42Z")

</div>

Hi, what is the equivalent vtk class used in the Paraview sample over line GUI? I would like to replicate it in python with the vtk wrappers Best

---

## [How to format a multidimensional dataset with xdmf and "node" positioning](https://discourse.paraview.org/t/how-to-format-a-multidimensional-dataset-with-xdmf-and-node-positioning/16595)

<div class="topic-metadata">

**Author:** [@Vistemboir](https://discourse.paraview.org/u/Vistemboir)\
**Replies:** 0\
**Last updated:** [May 8, 2025, 7:14pm UTC](https://discourse.paraview.org/t/how-to-format-a-multidimensional-dataset-with-xdmf-and-node-positioning/16595 "2025-05-08T19:14:19Z")

</div>

Hello all, I have a time-series of datapoints stored in HDF5 files which I would like to visualize with Paraview. The data contained is in more than one dimension, and should be mapped to specific points that are not u…

---

## [How to plot time series at a fixed point for SPH simulation (.vtu) in ParaView](https://discourse.paraview.org/t/how-to-plot-time-series-at-a-fixed-point-for-sph-simulation-vtu-in-paraview/16565)

<div class="topic-metadata">

**Author:** [@Nour\_Touil](https://discourse.paraview.org/u/Nour_Touil)\
**Replies:** 10\
**Last updated:** [May 7, 2025, 4:49pm UTC](https://discourse.paraview.org/t/how-to-plot-time-series-at-a-fixed-point-for-sph-simulation-vtu-in-paraview/16565 "2025-05-07T16:49:38Z")

</div>

Hi, I’m visualizing an SPH simulation in ParaView using .vtu files with multiple time steps. I would like to plot the time evolution of a variable ( like pressure or Z-variation because it’s a fluid simulation) at a fi…

---

## [Can 'Integrate variables' be used for summation of nodal values?](https://discourse.paraview.org/t/can-integrate-variables-be-used-for-summation-of-nodal-values/16571)

<div class="topic-metadata">

**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 5\
**Last updated:** [May 6, 2025, 10:01am UTC](https://discourse.paraview.org/t/can-integrate-variables-be-used-for-summation-of-nodal-values/16571 "2025-05-06T10:01:21Z")

</div>

Suppose I have a vtu file containing a vector valued field quantity (three values + magnitude per node) on an unstructured 3d grid. I apply a slice filter to extract a snippet of the volume, e.g., Without a python sc…

---

## [Plotting data along curved line along the perimeter of circle](https://discourse.paraview.org/t/plotting-data-along-curved-line-along-the-perimeter-of-circle/16566)

<div class="topic-metadata">

**Author:** [@scabo](https://discourse.paraview.org/u/scabo)\
**Replies:** 7\
**Last updated:** [May 5, 2025, 2:20pm UTC](https://discourse.paraview.org/t/plotting-data-along-curved-line-along-the-perimeter-of-circle/16566 "2025-05-05T14:20:27Z")

</div>

Hi I want to plot data along the circumference of the cross-section as shown in the attached image. I want to plot the wall shear along the perimeter of the pipe c/s. How should i proceed about this? I tried intersectio…

---

## [Plot over line does not work with Cell Data or "CellDataToPointData"](https://discourse.paraview.org/t/plot-over-line-does-not-work-with-cell-data-or-celldatatopointdata/16559)

<div class="topic-metadata">

**Author:** [@baranKucukcay](https://discourse.paraview.org/u/baranKucukcay)\
**Replies:** 6\
**Last updated:** [May 2, 2025, 12:02pm UTC](https://discourse.paraview.org/t/plot-over-line-does-not-work-with-cell-data-or-celldatatopointdata/16559 "2025-05-02T12:02:33Z")

</div>

Hello, I developed a lid-driven cavity Navier-Stokes solver using a collocated grid and finite volume method. Later, I added a VTK module to the code to store the velocity and pressure fields at the mesh centers as cell…

---

## [Interpolate time dependent vt.series on STL or STEP](https://discourse.paraview.org/t/interpolate-time-dependent-vt-series-on-stl-or-step/16555)

<div class="topic-metadata">

**Author:** [@DonPepote](https://discourse.paraview.org/u/DonPepote)\
**Replies:** 9\
**Last updated:** [May 2, 2025, 7:57am UTC](https://discourse.paraview.org/t/interpolate-time-dependent-vt-series-on-stl-or-step/16555 "2025-05-02T07:57:23Z")

</div>

Hi, I have a time depentend vtk.series with point coordinates and temperature values. I used to do the following: 3DDelaunay, PointVolumeInterpolator, Resample with Dataset. But I want to interpolate these temperatures o…

---

## [Help exporting scene vrml/wrl files with correct vrml colors](https://discourse.paraview.org/t/help-exporting-scene-vrml-wrl-files-with-correct-vrml-colors/16541)

<div class="topic-metadata">

**Author:** [@david](https://discourse.paraview.org/u/david)\
**Replies:** 7\
**Last updated:** [April 30, 2025, 7:18pm UTC](https://discourse.paraview.org/t/help-exporting-scene-vrml-wrl-files-with-correct-vrml-colors/16541 "2025-04-30T19:18:58Z")

</div>

Hello Paraview, I just made my account here after a few hours of scouring google and not finding a fix for my problem. I am starting with an exodus file & using a tetrahedralize → merge blocks → extract surface filter ch…

---

## [how to multiply point data by global variable](https://discourse.paraview.org/t/how-to-multiply-point-data-by-global-variable/7348)

<div class="topic-metadata">

**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 12\
**Last updated:** [April 30, 2025, 6:54am UTC](https://discourse.paraview.org/t/how-to-multiply-point-data-by-global-variable/7348 "2025-04-30T06:54:02Z")

</div>

Is it possible to multiply point data by a global variable? How is it done? Thanks team! @cory.quammen @utkarsh.ayachit

---

## [Add point cloud data onto a PointDatasetInterpolator output](https://discourse.paraview.org/t/add-point-cloud-data-onto-a-pointdatasetinterpolator-output/16550)

<div class="topic-metadata">

**Author:** [@Windy](https://discourse.paraview.org/u/Windy)\
**Replies:** 2\
**Last updated:** [April 29, 2025, 9:33pm UTC](https://discourse.paraview.org/t/add-point-cloud-data-onto-a-pointdatasetinterpolator-output/16550 "2025-04-29T21:33:33Z")

</div>

I have a point data set (lets call it A) and an stl mesh. I used point dataset interpolator to get the distribution on the mesh (output A). Now i have another point dataset (lets call it B). I want to get its distributio…

---

## [Server side plugin example](https://discourse.paraview.org/t/server-side-plugin-example/16549)

<div class="topic-metadata">

**Author:** [@florezg](https://discourse.paraview.org/u/florezg)\
**Replies:** 2\
**Last updated:** [April 29, 2025, 1:08pm UTC](https://discourse.paraview.org/t/server-side-plugin-example/16549 "2025-04-29T13:08:55Z")

</div>

Is there a server side plugin example in Python or C++? I wonder if there is a trivial example to understand the basics about developing a server (distributed) plugin version in Python. In particular, the usage of the ex…

---

## [Question on vtkParticleTracer Filter using vtkPythonAlgorithmBase](https://discourse.paraview.org/t/question-on-vtkparticletracer-filter-using-vtkpythonalgorithmbase/16537)

<div class="topic-metadata">

**Author:** [@Oracle\_0](https://discourse.paraview.org/u/Oracle_0)\
**Replies:** 9\
**Last updated:** [April 29, 2025, 8:22am UTC](https://discourse.paraview.org/t/question-on-vtkparticletracer-filter-using-vtkpythonalgorithmbase/16537 "2025-04-29T08:22:29Z")

</div>

Hi, I have been trying to add vtkParticleTracer in external python script based on vtkPythonAlgorithmBase. Paraview Version: 5.11.1 So far what I have understood is: vtkParticleTracer requires two inputs: A dataset c…

---

## [How to export PointDatasetInterpolator as a vtp file?](https://discourse.paraview.org/t/how-to-export-pointdatasetinterpolator-as-a-vtp-file/16523)

<div class="topic-metadata">

**Author:** [@Windy](https://discourse.paraview.org/u/Windy)\
**Replies:** 3\
**Last updated:** [April 29, 2025, 5:43am UTC](https://discourse.paraview.org/t/how-to-export-pointdatasetinterpolator-as-a-vtp-file/16523 "2025-04-29T05:43:03Z")

</div>

Hi team, I have an STL file and a point dataset (CSV) from an experiment. I used TabletoPoint and PointDatasetInterpolator (with a Gaussian kernel) to interpolate the value distribution over my surface mesh. Everything …

---

## [How to access RenderView name in pvpython](https://discourse.paraview.org/t/how-to-access-renderview-name-in-pvpython/16528)

<div class="topic-metadata">

**Author:** [@mckel](https://discourse.paraview.org/u/mckel)\
**Replies:** 1\
**Last updated:** [April 28, 2025, 12:15pm UTC](https://discourse.paraview.org/t/how-to-access-renderview-name-in-pvpython/16528 "2025-04-28T12:15:58Z")

</div>

Hi all, using pvpython, how do you access the custom name given to a view, e.g. a RenderView. In the shown snapshot, the layout was manually renamed to “MyLayout” and the view was renamed to “MyView”. With the follow…

---

## [Grouping several data corresponding to different time instants in a single file](https://discourse.paraview.org/t/grouping-several-data-corresponding-to-different-time-instants-in-a-single-file/16536)

<div class="topic-metadata">

**Author:** [@scabo](https://discourse.paraview.org/u/scabo)\
**Replies:** 13\
**Last updated:** [April 28, 2025, 8:13am UTC](https://discourse.paraview.org/t/grouping-several-data-corresponding-to-different-time-instants-in-a-single-file/16536 "2025-04-28T08:13:21Z")

</div>

Hi I have exported from fluent in .encase format the different data files that correspond to different time instants. They are loading as separate files but i want to see the transient animation and the time averaged pl…

[Previous page](https://discourse.paraview.org/c/paraview-support/7.md?page=16)

[Next page](https://discourse.paraview.org/c/paraview-support/7.md?page=18)