# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=169

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

**Page:** 170

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## [CGNSRreader: List all available blocks (patches) in python](https://discourse.paraview.org/t/cgnsrreader-list-all-available-blocks-patches-in-python/5095)

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**Author:** [@Jan\_Kaufmann](https://discourse.paraview.org/u/Jan_Kaufmann)\
**Replies:** 2\
**Last updated:** [August 31, 2020, 11:34am UTC](https://discourse.paraview.org/t/cgnsrreader-list-all-available-blocks-patches-in-python/5095 "2020-08-31T11:34:29Z")

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As I do not know the patch names of my cgns file in advance (when loading the file with python), I would like to get a list of all available patches. For e.g. OpenFOAM cases this can be done with foamReader.GetProperty(…

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## [paraview build examples](https://discourse.paraview.org/t/paraview-build-examples/2212)

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**Author:** [@rycsxy04](https://discourse.paraview.org/u/rycsxy04)\
**Replies:** 4\
**Last updated:** [August 31, 2020, 10:51am UTC](https://discourse.paraview.org/t/paraview-build-examples/2212 "2020-08-31T10:51:26Z")

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Hi, When I try to build paraview, I configure in cmake-gui with BUILD\_EXAMPLES ON, then configure, generate, then ninja. everythings seem going well, but I just can not find where the example application is built. I c…

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## [Failed to read data](https://discourse.paraview.org/t/failed-to-read-data/5161)

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**Author:** [@azer](https://discourse.paraview.org/u/azer)\
**Replies:** 1\
**Last updated:** [August 31, 2020, 9:04am UTC](https://discourse.paraview.org/t/failed-to-read-data/5161 "2020-08-31T09:04:00Z")

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I’m trying to visualize the data that I have from Titan2D, the data format is .xmf and I try to open it with XMDF Reader on the first three options, but then it shows me an error that said Failed to read attribute data. …

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## [Programmable Source with vtkUnstructuredGrid and Python re](https://discourse.paraview.org/t/programmable-source-with-vtkunstructuredgrid-and-python-re/5175)

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**Author:** [@smenon](https://discourse.paraview.org/u/smenon)\
**Replies:** 4\
**Last updated:** [August 31, 2020, 8:57am UTC](https://discourse.paraview.org/t/programmable-source-with-vtkunstructuredgrid-and-python-re/5175 "2020-08-31T08:57:23Z")

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I’m currently experimenting with the Programmable Source and vtkUnstructuredGrid output, but I’m having trouble getting it to work. I’m simply trying to generate a single polyhedral cell, and I’m fairly certain I have th…

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## [Export structured mesh and solid model](https://discourse.paraview.org/t/export-structured-mesh-and-solid-model/5202)

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**Author:** [@Abhijeet\_Chodankar](https://discourse.paraview.org/u/Abhijeet_Chodankar)\
**Replies:** 1\
**Last updated:** [August 31, 2020, 8:42am UTC](https://discourse.paraview.org/t/export-structured-mesh-and-solid-model/5202 "2020-08-31T08:42:33Z")

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I have the coordinates of a paraboloid stored in a .xyz file. I am able to view it in Paraview. I use the extract edges filter to get the structured grid for the paraboloid. Is it possible to store this structured grid …

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## [Velocity distribution](https://discourse.paraview.org/t/velocity-distribution/5209)

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**Author:** [@armaghantelgerafchi](https://discourse.paraview.org/u/armaghantelgerafchi)\
**Replies:** 1\
**Last updated:** [August 31, 2020, 8:36am UTC](https://discourse.paraview.org/t/velocity-distribution/5209 "2020-08-31T08:36:47Z")

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To whom it may concern I have a problem with Paraview. I did a simulation with Elmer and exported it to Paraview. In Paraview, In velocity distribution, it seems that the empty tube inside the geometry velocity is zero …

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## [Plot over line with time average](https://discourse.paraview.org/t/plot-over-line-with-time-average/5213)

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**Author:** [@mmaalouly](https://discourse.paraview.org/u/mmaalouly)\
**Replies:** 1\
**Last updated:** [August 31, 2020, 8:31am UTC](https://discourse.paraview.org/t/plot-over-line-with-time-average/5213 "2020-08-31T08:31:28Z")

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Hello, I would like to get the time average of a plot over line. My simulation is periodically steady, so getting the profile on one timestep is not representative of my solution. Thanks, Michael

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## [How to download new nightly builds now?](https://discourse.paraview.org/t/how-to-download-new-nightly-builds-now/5141)

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**Author:** [@mconti](https://discourse.paraview.org/u/mconti)\
**Replies:** 5\
**Last updated:** [August 29, 2020, 1:42am UTC](https://discourse.paraview.org/t/how-to-download-new-nightly-builds-now/5141 "2020-08-29T01:42:25Z")

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How do you download the latest nightly builds now? I’m looking to download a new nightly to test out OSPRay 2.0 stuff. The nightly section on https://www.paraview.org/download/ only has the windows versions, and I am lo…

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## [HDF5 Compound in ParaView](https://discourse.paraview.org/t/hdf5-compound-in-paraview/5206)

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**Author:** [@Bin\_Dong](https://discourse.paraview.org/u/Bin_Dong)\
**Replies:** 2\
**Last updated:** [August 28, 2020, 5:28pm UTC](https://discourse.paraview.org/t/hdf5-compound-in-paraview/5206 "2020-08-28T17:28:13Z")

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Hi ParaView Community, Just wonder does the ParaView can support HDF5 compound data structure ? A compound dataset is like the one created by the below code example https://fossies.org/linux/hdf5/examples/h5\_compound.…

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## [macOS Catalina: Downloaded PV 5.8.1 crashes in PluginManager with "Load New ..."](https://discourse.paraview.org/t/macos-catalina-downloaded-pv-5-8-1-crashes-in-pluginmanager-with-load-new/5210)

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**Author:** [@Fabian188](https://discourse.paraview.org/u/Fabian188)\
**Replies:** 1\
**Last updated:** [August 28, 2020, 3:33pm UTC](https://discourse.paraview.org/t/macos-catalina-downloaded-pv-5-8-1-crashes-in-pluginmanager-with-load-new/5210 "2020-08-28T15:33:49Z")

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A brand new downloaded PV 5.8.1 crashes on my updated Mac (10.15.6) when I press “Load New …” in the Plugin Manager. Not really crash but the wheel of death, the application is stalled with 50% cpu-load. When I quit an …

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## [increasing the number of rows read in by csv reader](https://discourse.paraview.org/t/increasing-the-number-of-rows-read-in-by-csv-reader/5084)

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**Author:** [@sck2020](https://discourse.paraview.org/u/sck2020)\
**Replies:** 3\
**Last updated:** [August 28, 2020, 2:04am UTC](https://discourse.paraview.org/t/increasing-the-number-of-rows-read-in-by-csv-reader/5084 "2020-08-28T02:04:13Z")

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hi all, the maximum number of rows read and displayed via the csv reader is around 33K, is there any way I can increase it to a significantly higher number? (millions of points)… I am trying to visualize a large dataset

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## [Error trying to post process Simscale results](https://discourse.paraview.org/t/error-trying-to-post-process-simscale-results/5188)

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**Author:** [@Tsholofelo\_Horong](https://discourse.paraview.org/u/Tsholofelo_Horong)\
**Replies:** 1\
**Last updated:** [August 28, 2020, 1:47am UTC](https://discourse.paraview.org/t/error-trying-to-post-process-simscale-results/5188 "2020-08-28T01:47:35Z")

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Hi I am trying to post process my Simscale results in Paraview in order to use the filtering and graph plotting features that are not available in Simscale post-processing. The plots that I am interested in are maximum …

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## [Volume Rendering with original image colors; removing the black fill](https://discourse.paraview.org/t/volume-rendering-with-original-image-colors-removing-the-black-fill/5192)

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**Author:** [@Davincible](https://discourse.paraview.org/u/Davincible)\
**Replies:** 4\
**Last updated:** [August 27, 2020, 7:55pm UTC](https://discourse.paraview.org/t/volume-rendering-with-original-image-colors-removing-the-black-fill/5192 "2020-08-27T19:55:07Z")

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I have a bunch of images like this: And I am looking to reconstruct them in a 3D model. Loading the data into Paraview, I am able to do so if I use a color map (enable Map Scalars & Ray Tracing), resulting in: However…

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## [How to import multiple spacecraft trajectory data in Paraview?](https://discourse.paraview.org/t/how-to-import-multiple-spacecraft-trajectory-data-in-paraview/5057)

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**Author:** [@mwl](https://discourse.paraview.org/u/mwl)\
**Replies:** 4\
**Last updated:** [August 27, 2020, 7:07pm UTC](https://discourse.paraview.org/t/how-to-import-multiple-spacecraft-trajectory-data-in-paraview/5057 "2020-08-27T19:07:30Z")

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We want to display multiple spacecraft trajectory data for visualization. Each trajectory is a time series of position and velocity, forming a matrix of n x 7, where each row contains the 7 numbers of the time, position …

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## [Difference between ParticleTracer and LangrarianParticleTracker](https://discourse.paraview.org/t/difference-between-particletracer-and-langrarianparticletracker/5181)

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**Author:** [@savalma](https://discourse.paraview.org/u/savalma)\
**Replies:** 4\
**Last updated:** [August 27, 2020, 4:40pm UTC](https://discourse.paraview.org/t/difference-between-particletracer-and-langrarianparticletracker/5181 "2020-08-27T16:40:51Z")

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Hello, I have been reading about the options to track particles within a flow field using Paraview and I found two methods that are plausible. The firs is the Particle Tracer filter (I actually used the particle tracer …

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## [Paraview for geospatial data](https://discourse.paraview.org/t/paraview-for-geospatial-data/5189)

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**Author:** [@eroots](https://discourse.paraview.org/u/eroots)\
**Replies:** 3\
**Last updated:** [August 27, 2020, 2:32pm UTC](https://discourse.paraview.org/t/paraview-for-geospatial-data/5189 "2020-08-27T14:32:47Z")

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I noticed in the ParaView release notes that there is now support for geospatial formats through GDAL and PDAL (https://www.paraview.org/Wiki/ParaView\_Release\_Notes#GDAL\_and\_PDAL\_Readers) Does anyone know if this is sup…

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## [How can I output custom message in the output window from paraview source code.](https://discourse.paraview.org/t/how-can-i-output-custom-message-in-the-output-window-from-paraview-source-code/5090)

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**Author:** [@lyz](https://discourse.paraview.org/u/lyz)\
**Replies:** 1\
**Last updated:** [August 27, 2020, 1:28pm UTC](https://discourse.paraview.org/t/how-can-i-output-custom-message-in-the-output-window-from-paraview-source-code/5090 "2020-08-27T13:28:24Z")

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How can I output custom message in the output window from paraview source code. (version 5.7.0) I have tried ‘vtkGenericWarningMarco’ and '‘vtkOutputWindowDisplayText’, but there is no message in the output window.

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## [Line chart view axis title properties](https://discourse.paraview.org/t/line-chart-view-axis-title-properties/5121)

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**Author:** [@yifanb](https://discourse.paraview.org/u/yifanb)\
**Replies:** 5\
**Last updated:** [August 27, 2020, 12:55pm UTC](https://discourse.paraview.org/t/line-chart-view-axis-title-properties/5121 "2020-08-27T12:55:59Z")

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This seems like a basic question but I can’t seem to change the axis title properties in a line chart view. The “axis title properties” category is missing from the GUI on my Mac. Was it moved to some place else?

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## [Specification of vtk DataFile Version 5.1](https://discourse.paraview.org/t/specification-of-vtk-datafile-version-5-1/5127)

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**Author:** [@vlukes](https://discourse.paraview.org/u/vlukes)\
**Replies:** 2\
**Last updated:** [August 27, 2020, 11:31am UTC](https://discourse.paraview.org/t/specification-of-vtk-datafile-version-5-1/5127 "2020-08-27T11:31:34Z")

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Paraview 5.8.1 uses vtk DataFile Version 5.1. In the new version, cells of an unstructured grid are stored in OFFSETS/CONNECTIVITY blocks. Where to find the specification for 5.1 format version? Only “File Formats for VT…

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## [Problem about OpenVR plugin in paraview 5.5.\*](https://discourse.paraview.org/t/problem-about-openvr-plugin-in-paraview-5-5/277)

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**Author:** [@genesoul](https://discourse.paraview.org/u/genesoul)\
**Replies:** 9\
**Last updated:** [August 27, 2020, 9:18am UTC](https://discourse.paraview.org/t/problem-about-openvr-plugin-in-paraview-5-5/277 "2020-08-27T09:18:56Z")

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Can’t render properly with 5.5.\* in VR environment （HTC vive）when I play animation of the first example(can.ex2). it can only render the first frame and last frame. But it works well in paraview 5.4.1.

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## [How to switch left and right image in Crystaleyes Stereo 3D Visualization?](https://discourse.paraview.org/t/how-to-switch-left-and-right-image-in-crystaleyes-stereo-3d-visualization/5056)

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**Author:** [@mwl](https://discourse.paraview.org/u/mwl)\
**Replies:** 4\
**Last updated:** [August 27, 2020, 7:34am UTC](https://discourse.paraview.org/t/how-to-switch-left-and-right-image-in-crystaleyes-stereo-3d-visualization/5056 "2020-08-27T07:34:33Z")

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For stereo 3D visualization (using Crystaleyes), is there an easy way to switch the left and right images? Frequently, when starting Crystaleyes, the left and right images would be reversed. The only way we have found to…

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## [How to make axis based on log instead of linear](https://discourse.paraview.org/t/how-to-make-axis-based-on-log-instead-of-linear/5180)

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**Author:** [@haochengliu](https://discourse.paraview.org/u/haochengliu)\
**Replies:** 2\
**Last updated:** [August 26, 2020, 2:15pm UTC](https://discourse.paraview.org/t/how-to-make-axis-based-on-log-instead-of-linear/5180 "2020-08-26T14:15:06Z")

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Hey paraview developers, Good afteroon. I have a use case that I need to create a surface from CSV data, and color it by certain fields. Similiar to this post. May I ask how can I change the axis to be log arithmetic i…

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## [Wavefront .obj WITH materials .mtl](https://discourse.paraview.org/t/wavefront-obj-with-materials-mtl/1012)

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**Author:** [@Richard\_Simmons](https://discourse.paraview.org/u/Richard_Simmons)\
**Replies:** 24\
**Last updated:** [August 25, 2020, 7:13pm UTC](https://discourse.paraview.org/t/wavefront-obj-with-materials-mtl/1012 "2020-08-25T19:13:17Z")

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I have CAD models with colors already applied (.obj (with .mtl)). How do I import the .obj file and apply the .mtl file to display the colors correctly? I have not found a clear or concise way of doing this. Also, wou…

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## [How to change render view settings for a headless installation without GUI](https://discourse.paraview.org/t/how-to-change-render-view-settings-for-a-headless-installation-without-gui/5176)

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**Author:** [@Jan\_Kaufmann](https://discourse.paraview.org/u/Jan_Kaufmann)\
**Replies:** 4\
**Last updated:** [August 25, 2020, 9:24am UTC](https://discourse.paraview.org/t/how-to-change-render-view-settings-for-a-headless-installation-without-gui/5176 "2020-08-25T09:24:14Z")

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Hi All, I would like to change e.g “Edit/ Settings/ Render View/ Advanced/ Line Offset Parameters” for our headless installation on a cluster. Normally I can change such values in the GUI. Python trace does not to reco…

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## [Paraview / Mesa / VNC on Linux?](https://discourse.paraview.org/t/paraview-mesa-vnc-on-linux/5099)

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**Author:** [@smenon](https://discourse.paraview.org/u/smenon)\
**Replies:** 3\
**Last updated:** [August 24, 2020, 10:34pm UTC](https://discourse.paraview.org/t/paraview-mesa-vnc-on-linux/5099 "2020-08-24T22:34:29Z")

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Mostly looking for options here since remote working is pretty much the norm these days. I’m trying to configure a solution where I have Paraview compiled with Mesa (software rendering, and no GPU) on a remote Linux comp…

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## [JSON time series show files after the specified time (and not before)](https://discourse.paraview.org/t/json-time-series-show-files-after-the-specified-time-and-not-before/5153)

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**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 2\
**Last updated:** [August 22, 2020, 8:17am UTC](https://discourse.paraview.org/t/json-time-series-show-files-after-the-specified-time-and-not-before/5153 "2020-08-22T08:17:36Z")

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I load time series using json files like so: { "file-series-version": "1.0", "files": \[ { "name": "collision\_dry\_impulses\_000040.vtu", "time": 0.1596 }, { …

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## [Attribute Errors in paraview](https://discourse.paraview.org/t/attribute-errors-in-paraview/5156)

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**Author:** [@Mudit\_Mehta](https://discourse.paraview.org/u/Mudit_Mehta)\
**Replies:** 4\
**Last updated:** [August 21, 2020, 5:32pm UTC](https://discourse.paraview.org/t/attribute-errors-in-paraview/5156 "2020-08-21T17:32:30Z")

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Hello, Please help! I have tried other solutions that were available but could not resolve the issue. Any help is much appreciated. I am working on flow past a circular cyliner at Re = 3900. I ran the simulation in rem…

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## [Importing Paraview Module in Python 3.7/3.8](https://discourse.paraview.org/t/importing-paraview-module-in-python-3-7-3-8/4722)

<div class="topic-metadata">

**Author:** [@Jarey99](https://discourse.paraview.org/u/Jarey99)\
**Replies:** 3\
**Last updated:** [August 21, 2020, 3:38pm UTC](https://discourse.paraview.org/t/importing-paraview-module-in-python-3-7-3-8/4722 "2020-08-21T15:38:39Z")

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Hello, I have a python script that I’m attempting to run in Spyder (Python 3.7). On a line that tries to import Paraview that says: “from paraview.simple import \*” An error occurs that says: “No module named ‘paravi…

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## [open .vtk file](https://discourse.paraview.org/t/open-vtk-file/5154)

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**Author:** [@pavarino](https://discourse.paraview.org/u/pavarino)\
**Replies:** 5\
**Last updated:** [August 21, 2020, 3:32pm UTC](https://discourse.paraview.org/t/open-vtk-file/5154 "2020-08-21T15:32:05Z")

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Dear Paraview Support, Paraview 5.6 was running ok on my Windows10 laptop, but I tried to update to 5.8 and I no longer can read my .vtk files. I get an error message saying " A reader for “my:file.vtk” file cannot be …

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## [vtm, pvd format.](https://discourse.paraview.org/t/vtm-pvd-format/5148)

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**Author:** [@deepakpawar2310](https://discourse.paraview.org/u/deepakpawar2310)\
**Replies:** 0\
**Last updated:** [August 21, 2020, 7:53am UTC](https://discourse.paraview.org/t/vtm-pvd-format/5148 "2020-08-21T07:53:51Z")

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How can I dump the LAMMMPS output files into the vtm, pvd format. I think pvd used for the summarizing the time step information and vtm used for dumping the data into some particular post folder

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