# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=146

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

**Page:** 147

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## [ruler giving wrong answers](https://discourse.paraview.org/t/ruler-giving-wrong-answers/6907)

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**Author:** [@kuprat](https://discourse.paraview.org/u/kuprat)\
**Replies:** 4\
**Last updated:** [April 13, 2021, 10:30pm UTC](https://discourse.paraview.org/t/ruler-giving-wrong-answers/6907 "2021-04-13T22:30:40Z")

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This image shows ruler in paraview 5.6.0 64-bit on Windows 10 giving clearly wrong answers. The long line is listed as having a length one-third as long as the short line. There shouldn’t be any weird 3D effect, sinc…

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## [animation time in calculator fiter](https://discourse.paraview.org/t/animation-time-in-calculator-fiter/6945)

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**Author:** [@pb0](https://discourse.paraview.org/u/pb0)\
**Replies:** 0\
**Last updated:** [April 13, 2021, 8:42pm UTC](https://discourse.paraview.org/t/animation-time-in-calculator-fiter/6945 "2021-04-13T20:42:18Z")

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hi all, is it possible to use in the calculator filter a time function defined in animation view ? thanks

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## [Track duration / calculation time of a paraview filter](https://discourse.paraview.org/t/track-duration-calculation-time-of-a-paraview-filter/6938)

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**Author:** [@alkali](https://discourse.paraview.org/u/alkali)\
**Replies:** 3\
**Last updated:** [April 13, 2021, 10:24am UTC](https://discourse.paraview.org/t/track-duration-calculation-time-of-a-paraview-filter/6938 "2021-04-13T10:24:00Z")

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Hello, is there a way to track how long Paraview takes to calculate a filter? The background is that I use the Particle Path Filter for large datasets and would like to know how long I have to schedule in total. Thank…

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## [Time average of scalar variable for specific block](https://discourse.paraview.org/t/time-average-of-scalar-variable-for-specific-block/6926)

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**Author:** [@proxy](https://discourse.paraview.org/u/proxy)\
**Replies:** 0\
**Last updated:** [April 11, 2021, 1:59pm UTC](https://discourse.paraview.org/t/time-average-of-scalar-variable-for-specific-block/6926 "2021-04-11T13:59:20Z")

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Hello, I have simulated a transient aerofoil case in OpenFOAM. Inside the controlDict of OpenFOAM I mentioned that I need the time averaged values for velocity and pressure, but I forgot to mention that I need a time av…

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## [pvpython and sys.stdin](https://discourse.paraview.org/t/pvpython-and-sys-stdin/6924)

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**Author:** [@TimJim](https://discourse.paraview.org/u/TimJim)\
**Replies:** 0\
**Last updated:** [April 11, 2021, 10:43am UTC](https://discourse.paraview.org/t/pvpython-and-sys-stdin/6924 "2021-04-11T10:43:36Z")

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Hi, a quick question about pvpython - I noticed that it seems to change stdin so that: \>\>\> sys.stdin \<vtkPythonStdStreamCaptureHelper object at 0x7f36740b5d30\> Can I safely reset sys.stdin = os.fdopen(1) or is the vtk …

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## [Python documentation for CreateView](https://discourse.paraview.org/t/python-documentation-for-createview/3507)

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**Author:** [@Lelego](https://discourse.paraview.org/u/Lelego)\
**Replies:** 3\
**Last updated:** [April 9, 2021, 8:57pm UTC](https://discourse.paraview.org/t/python-documentation-for-createview/3507 "2021-04-09T20:57:49Z")

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Hi, I want to create multiple views, I saw the documentation here: https://kitware.github.io/paraview-docs/latest/python/paraview.simple.html?highlight=createview#paraview.simple.CreateView. Here is the citation: “parav…

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## [Is there any easy way to translate paraview's Python code to c++?](https://discourse.paraview.org/t/is-there-any-easy-way-to-translate-paraviews-python-code-to-c/6920)

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**Author:** [@IrinaZhuang](https://discourse.paraview.org/u/IrinaZhuang)\
**Replies:** 1\
**Last updated:** [April 9, 2021, 8:27pm UTC](https://discourse.paraview.org/t/is-there-any-easy-way-to-translate-paraviews-python-code-to-c/6920 "2021-04-09T20:27:06Z")

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As titled, I was currently asked to use c++ to finish my project, but I have already done it in python. So I would like to know if there is some easy way to translate python code to c++, given that paraview was written i…

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## [paraview vs python installation - causing problems with python calculator](https://discourse.paraview.org/t/paraview-vs-python-installation-causing-problems-with-python-calculator/6904)

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**Author:** [@garcfd](https://discourse.paraview.org/u/garcfd)\
**Replies:** 0\
**Last updated:** [April 8, 2021, 8:52pm UTC](https://discourse.paraview.org/t/paraview-vs-python-installation-causing-problems-with-python-calculator/6904 "2021-04-08T20:52:49Z")

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paraview compatibility with python installation causing problems with python calculator. I cant seem to use the python calculator filter (at the moment) and getting this error message. Its something to do with the impor…

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## [What should happen when paraview runs out of memory?](https://discourse.paraview.org/t/what-should-happen-when-paraview-runs-out-of-memory/6898)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 11\
**Last updated:** [April 9, 2021, 4:01pm UTC](https://discourse.paraview.org/t/what-should-happen-when-paraview-runs-out-of-memory/6898 "2021-04-09T16:01:16Z")

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It seems to me that when I load a data set which exceeds the available memory, paraview will hard crash. Is that expected?

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## [How to export Spreadsheet View for all time steps?](https://discourse.paraview.org/t/how-to-export-spreadsheet-view-for-all-time-steps/6897)

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**Author:** [@paraviwer](https://discourse.paraview.org/u/paraviwer)\
**Replies:** 1\
**Last updated:** [April 9, 2021, 1:19pm UTC](https://discourse.paraview.org/t/how-to-export-spreadsheet-view-for-all-time-steps/6897 "2021-04-09T13:19:29Z")

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I can use Save Data and then select Save Time Steps to get a bunch of CSV files with the field variables. That works fine. But when I look at SpreadSheetView there are other variables that do not end up in the Save Data …

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## [Use the "gradient of unstructured data set" filter to output the vorticity](https://discourse.paraview.org/t/use-the-gradient-of-unstructured-data-set-filter-to-output-the-vorticity/6813)

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**Author:** [@jeff](https://discourse.paraview.org/u/jeff)\
**Replies:** 3\
**Last updated:** [April 9, 2021, 1:12pm UTC](https://discourse.paraview.org/t/use-the-gradient-of-unstructured-data-set-filter-to-output-the-vorticity/6813 "2021-04-09T13:12:11Z")

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How do I know what equation is used for the “gradient of an unstructured data set”?

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## [Where should Paraview bug issues be filed?](https://discourse.paraview.org/t/where-should-paraview-bug-issues-be-filed/6905)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 2\
**Last updated:** [April 8, 2021, 11:29pm UTC](https://discourse.paraview.org/t/where-should-paraview-bug-issues-be-filed/6905 "2021-04-08T23:29:43Z")

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What it says above.

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## [Reindexing vtk time values](https://discourse.paraview.org/t/reindexing-vtk-time-values/6901)

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**Author:** [@lrfrank](https://discourse.paraview.org/u/lrfrank)\
**Replies:** 0\
**Last updated:** [April 8, 2021, 7:26pm UTC](https://discourse.paraview.org/t/reindexing-vtk-time-values/6901 "2021-04-08T19:26:18Z")

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Hi, This problem is this: I have a volumetric time series in netCDF format that has a time index with actual time values I have vtk files generated for each of these netCDF files that I need to sync in time with their…

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## [Number Pad not seen?](https://discourse.paraview.org/t/number-pad-not-seen/6896)

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**Author:** [@paraviwer](https://discourse.paraview.org/u/paraviwer)\
**Replies:** 2\
**Last updated:** [April 8, 2021, 3:34pm UTC](https://discourse.paraview.org/t/number-pad-not-seen/6896 "2021-04-08T15:34:14Z")

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Hello, Why does ParaView not see the number pad on my keyboard? I have to enter numbers from above the letter keys and it is very inconvenient when all other software works just fine with the number pad. Is there some s…

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## [Magnitude not saved when saving .csv, using PlotOverLine filter](https://discourse.paraview.org/t/magnitude-not-saved-when-saving-csv-using-plotoverline-filter/6892)

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**Author:** [@kamilova-maths](https://discourse.paraview.org/u/kamilova-maths)\
**Replies:** 2\
**Last updated:** [April 8, 2021, 1:01pm UTC](https://discourse.paraview.org/t/magnitude-not-saved-when-saving-csv-using-plotoverline-filter/6892 "2021-04-08T13:01:46Z")

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Hi everyone, I am using ParaView from the GUI, and I am using the PlotOverLine filter to evaluate my normal stress results on specific boundaries. Specifically, what PlotOverLine shows is Stress0.0\_Magnitude. I then se…

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## [Bug with slicing slices](https://discourse.paraview.org/t/bug-with-slicing-slices/6890)

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**Author:** [@TimJim](https://discourse.paraview.org/u/TimJim)\
**Replies:** 1\
**Last updated:** [April 8, 2021, 11:41am UTC](https://discourse.paraview.org/t/bug-with-slicing-slices/6890 "2021-04-08T11:41:34Z")

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I use a python script to script to extract pressure signatures at different radial distances at a couple of angles - it usually works but today I got a garbled solution. I normally get results like this: but I got th…

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## [Simple: I changed the default directory of .vtu files and now I have a small error/have to open the files.](https://discourse.paraview.org/t/simple-i-changed-the-default-directory-of-vtu-files-and-now-i-have-a-small-error-have-to-open-the-files/6875)

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**Author:** [@ScientistRenzo](https://discourse.paraview.org/u/ScientistRenzo)\
**Replies:** 4\
**Last updated:** [April 8, 2021, 5:04am UTC](https://discourse.paraview.org/t/simple-i-changed-the-default-directory-of-vtu-files-and-now-i-have-a-small-error-have-to-open-the-files/6875 "2021-04-08T05:04:56Z")

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Helloo! So I use Elmer (FEA) with ParaView. I simulate a project in Elmer, then the files are saved as .vtu files in my /elmerprojectdirectory. Then in Elmer, I click Start ParaView, and my .vtu (group) files are load…

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## [How to change variable names in Paraview imported with Plot3D formatted data files?](https://discourse.paraview.org/t/how-to-change-variable-names-in-paraview-imported-with-plot3d-formatted-data-files/1214)

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**Author:** [@RaviGupta](https://discourse.paraview.org/u/RaviGupta)\
**Replies:** 2\
**Last updated:** [February 9, 2019, 5:22am UTC](https://discourse.paraview.org/t/how-to-change-variable-names-in-paraview-imported-with-plot3d-formatted-data-files/1214 "2019-02-09T05:22:40Z")

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Hi, I am using Paraview to visualize plot3d formatted data files. I am importing the data file into ParaView using reader file with extension .p3d . So my flow variables are coming as Function0, Function1, Function2 etc…

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## [Append results of each loadstep to the RMED file for Paraview](https://discourse.paraview.org/t/append-results-of-each-loadstep-to-the-rmed-file-for-paraview/6873)

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**Author:** [@mecha\_Searchs](https://discourse.paraview.org/u/mecha_Searchs)\
**Replies:** 6\
**Last updated:** [April 7, 2021, 3:20pm UTC](https://discourse.paraview.org/t/append-results-of-each-loadstep-to-the-rmed-file-for-paraview/6873 "2021-04-07T15:20:47Z")

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Hello! I’m using Paraview on Salome-Meca 2019. And I use Code Aster for the simulations. But this is a question about post-processing. My simulation consists in using a loop to move a heat load. Currently, I save each …

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## [Map image to surface mesh](https://discourse.paraview.org/t/map-image-to-surface-mesh/6829)

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**Author:** [@j-c](https://discourse.paraview.org/u/j-c)\
**Replies:** 7\
**Last updated:** [April 7, 2021, 11:22am UTC](https://discourse.paraview.org/t/map-image-to-surface-mesh/6829 "2021-04-07T11:22:51Z")

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Hello and thanks! I want to map/warp/wrap image data to a mesh surface (temperature from an infrared camera), and am looking for the best approach. I have the exact spatial camera position relative to the mesh, and can …

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## [problem reading large VTU file](https://discourse.paraview.org/t/problem-reading-large-vtu-file/6887)

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**Author:** [@Ehsan\_Izadi](https://discourse.paraview.org/u/Ehsan_Izadi)\
**Replies:** 4\
**Last updated:** [April 7, 2021, 9:11am UTC](https://discourse.paraview.org/t/problem-reading-large-vtu-file/6887 "2021-04-07T09:11:26Z")

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Hi, I am having issues reading a large vtu file. I have tried various versions of Paraview on Windows and Ubuntu, but the problem is persistent. The VTU file consist of 404000 unstructured data points and when I try to …

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## [Streamtracer/Surface LIC on a plane perpendicular to the flow](https://discourse.paraview.org/t/streamtracer-surface-lic-on-a-plane-perpendicular-to-the-flow/6885)

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**Author:** [@heisenmech](https://discourse.paraview.org/u/heisenmech)\
**Replies:** 2\
**Last updated:** [April 7, 2021, 9:01am UTC](https://discourse.paraview.org/t/streamtracer-surface-lic-on-a-plane-perpendicular-to-the-flow/6885 "2021-04-07T09:01:19Z")

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Hi all, I’ve long been looking for a nice flow field visualisation on a 2D plane which is perpendicular to the flow. I thought Surface LIC would just work perfect here. However, it looks like to me that Surface LIC only…

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## [Create a graph](https://discourse.paraview.org/t/create-a-graph/6783)

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**Author:** [@Maria\_co](https://discourse.paraview.org/u/Maria_co)\
**Replies:** 6\
**Last updated:** [April 7, 2021, 7:52am UTC](https://discourse.paraview.org/t/create-a-graph/6783 "2021-04-07T07:52:38Z")

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Hello everyone, I am trying to use paraview very recently in the field of scientific research. I have a doubt that I cannot resolve, maybe some of you will be able to help me. I have a series of data (x, y, z) of which …

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## [writing a pyhon script to semi-automate generation of CSV file for streamlines](https://discourse.paraview.org/t/writing-a-pyhon-script-to-semi-automate-generation-of-csv-file-for-streamlines/6827)

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**Author:** [@mohammad\_faghih](https://discourse.paraview.org/u/mohammad_faghih)\
**Replies:** 11\
**Last updated:** [April 4, 2021, 1:04pm UTC](https://discourse.paraview.org/t/writing-a-pyhon-script-to-semi-automate-generation-of-csv-file-for-streamlines/6827 "2021-04-04T13:04:53Z")

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I have a couple of simulation cases, that are very similar to each other. For all the cases, I need to generate streamlines and export a csv file of the streamline data out for further processing. Here is what I would …

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## [move axes](https://discourse.paraview.org/t/move-axes/6884)

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**Author:** [@aquanaut](https://discourse.paraview.org/u/aquanaut)\
**Replies:** 2\
**Last updated:** [April 6, 2021, 5:07pm UTC](https://discourse.paraview.org/t/move-axes/6884 "2021-04-06T17:07:51Z")

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hi,can I move the axes to the positon like the following picture?

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## [trying to colour Point Gaussians in unstructured grid with scalars](https://discourse.paraview.org/t/trying-to-colour-point-gaussians-in-unstructured-grid-with-scalars/6859)

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**Author:** [@bitminer](https://discourse.paraview.org/u/bitminer)\
**Replies:** 2\
**Last updated:** [April 6, 2021, 3:26pm UTC](https://discourse.paraview.org/t/trying-to-colour-point-gaussians-in-unstructured-grid-with-scalars/6859 "2021-04-06T15:26:02Z")

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I have some points and attributes (scalar, vector) originally in hdf5, and convert to a VTU file with python. I can define Point Gaussians at the points but they are always gray.I cannot seem to get a scalar attribute t…

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## [docs+tutorials of Paraview cinema and Paraview web?](https://discourse.paraview.org/t/docs-tutorials-of-paraview-cinema-and-paraview-web/6880)

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**Author:** [@AsionNguyen](https://discourse.paraview.org/u/AsionNguyen)\
**Replies:** 2\
**Last updated:** [April 6, 2021, 3:20pm UTC](https://discourse.paraview.org/t/docs-tutorials-of-paraview-cinema-and-paraview-web/6880 "2021-04-06T15:20:27Z")

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Hello, I am beginner with paraview. I am working on a 3D point cloud and I would like to try paraview cinema (screenshots of point cloud) and later paraview web on it (I have found a video about paraview cinema which i…

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## [Surface LIC](https://discourse.paraview.org/t/surface-lic/6883)

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**Author:** [@heisenmech](https://discourse.paraview.org/u/heisenmech)\
**Replies:** 5\
**Last updated:** [April 6, 2021, 1:42pm UTC](https://discourse.paraview.org/t/surface-lic/6883 "2021-04-06T13:42:23Z")

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Hi all, I recently enabled the “Surface LIC” plugin for streamline-like visualizations. When I select Surface LIC after loading the data in Paraview, it works fine. However, when I try to get a slice on this 3D (geometr…

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## [VDB files](https://discourse.paraview.org/t/vdb-files/640)

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**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 12\
**Last updated:** [April 6, 2021, 12:34pm UTC](https://discourse.paraview.org/t/vdb-files/640 "2021-04-06T12:34:38Z")

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How hard would it be to add a VDB writer? This could be used with Houdini. Here is the e-mail request from my user: VDB is an export standard which Houdini can read in. http://www.openvdb.org/ Export of .geo format …

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## [Texture Map to Plane - 5.9.0 version](https://discourse.paraview.org/t/texture-map-to-plane-5-9-0-version/6874)

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**Author:** [@Rodrigo\_Rocha](https://discourse.paraview.org/u/Rodrigo_Rocha)\
**Replies:** 2\
**Last updated:** [April 6, 2021, 12:12pm UTC](https://discourse.paraview.org/t/texture-map-to-plane-5-9-0-version/6874 "2021-04-06T12:12:55Z")

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Hi! I used to use Paraview to view surface models and apply textures to them, using the filter: Texture Map to Plane. But in the newest version (5.9.0), this feature no longer appears. Is there any alternative?

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