# ParaView Support **URL:** https://discourse.paraview.org/c/paraview-support/7.md?no_subcategories=false&page=199 [Latest](https://discourse.paraview.org/latest.md) · [Categories](https://discourse.paraview.org/categories.md) · [Tags](https://discourse.paraview.org/tags.md) **Page:** 200 --- ## [How to render 3D bathymetry data](https://discourse.paraview.org/t/how-to-render-3d-bathymetry-data/2945)
**Author:** [@yijianmingliu](https://discourse.paraview.org/u/yijianmingliu)\ **Replies:** 3\ **Last updated:** [November 12, 2019, 9:21am UTC](https://discourse.paraview.org/t/how-to-render-3d-bathymetry-data/2945 "2019-11-12T09:21:15Z")
Hi,I am quite new to paraview, I’d like to use paraview for visualizing bathymetry data. I have a netCDF file containing the lat, lon, and elevation , Like in this picture, I also want to do this., I use the‘Warp by… --- ## [Having trouble to start Paraview](https://discourse.paraview.org/t/having-trouble-to-start-paraview/2931)
**Author:** [@kirathegreat](https://discourse.paraview.org/u/kirathegreat)\ **Replies:** 5\ **Last updated:** [November 12, 2019, 9:14am UTC](https://discourse.paraview.org/t/having-trouble-to-start-paraview/2931 "2019-11-12T09:14:06Z")
Hello, I am currently experiencing trouble starting Paraview on my newly built Linux Station. For the hardware my graphics card is AMD Radeon Pro WX7100, for system I have LInux Mint 19.2 Cinnamon 4.2.4. I tried to st… --- ## [Loading tif stacks](https://discourse.paraview.org/t/loading-tif-stacks/2903)
**Author:** [@ep513140](https://discourse.paraview.org/u/ep513140)\ **Replies:** 10\ **Last updated:** [November 11, 2019, 3:45pm UTC](https://discourse.paraview.org/t/loading-tif-stacks/2903 "2019-11-11T15:45:59Z")
I am extremely new to Paraview. I am using the desktop app and I am trying to load three tif files. One of the tiff files loads, but the other two do not. In preview when I select Open Files and then select the files I w… --- ## [Multiple colormaps for multiblock dataset?](https://discourse.paraview.org/t/multiple-colormaps-for-multiblock-dataset/2936)
**Author:** [@evmasuta](https://discourse.paraview.org/u/evmasuta)\ **Replies:** 3\ **Last updated:** [November 8, 2019, 11:08pm UTC](https://discourse.paraview.org/t/multiple-colormaps-for-multiblock-dataset/2936 "2019-11-08T23:08:11Z")
Hello all! I am working with anatomic MRI data with associated blood flow vector fields. Due to issues with OpenVR, I absolutely need to group the anatomic and vector data into a multiblock dataset. It works decently … --- ## [Animation Camera Orbit Python](https://discourse.paraview.org/t/animation-camera-orbit-python/2907)
**Author:** [@gilcu2](https://discourse.paraview.org/u/gilcu2)\ **Replies:** 5\ **Last updated:** [November 8, 2019, 9:34am UTC](https://discourse.paraview.org/t/animation-camera-orbit-python/2907 "2019-11-08T09:34:56Z")
Hello, How can reproduce the Animation by Camera Orbit of the graphic client in Python? Thanks --- ## [x3d export problem: wrong number of nodes](https://discourse.paraview.org/t/x3d-export-problem-wrong-number-of-nodes/2929)
**Author:** [@matthieuvitse](https://discourse.paraview.org/u/matthieuvitse)\ **Replies:** 6\ **Last updated:** [November 7, 2019, 4:44pm UTC](https://discourse.paraview.org/t/x3d-export-problem-wrong-number-of-nodes/2929 "2019-11-07T16:44:26Z")
Hi, I need to export my mesh from PV to use it in another software (Blender). The X3D file format seemed to be doing the job, however for the mesh I’m working on the number of nodes in the X3D file is different from the … --- ## [problems viewing images](https://discourse.paraview.org/t/problems-viewing-images/2916)
**Author:** [@fpoulin](https://discourse.paraview.org/u/fpoulin)\ **Replies:** 8\ **Last updated:** [November 7, 2019, 3:25pm UTC](https://discourse.paraview.org/t/problems-viewing-images/2916 "2019-11-07T15:25:13Z")
I have been using paraview on ubuntu for years now and as of today I can no longer view any images. The problem started before I did anything but since I have removed and reinstalled paraview and the same problem persis… --- ## [Floating point exception since Paraview 5.7.0 using NoMachine](https://discourse.paraview.org/t/floating-point-exception-since-paraview-5-7-0-using-nomachine/2863)
**Author:** [@nathan](https://discourse.paraview.org/u/nathan)\ **Replies:** 14\ **Last updated:** [November 7, 2019, 9:44am UTC](https://discourse.paraview.org/t/floating-point-exception-since-paraview-5-7-0-using-nomachine/2863 "2019-11-07T09:44:56Z")
Hello, I used to execute ParaView remotely on (headless) EC2 using NoMachine, which worked perfectly with the command $ GL\_VERSION\_OVERRIDE=3.2 /data/ParaView-5.6.1-MPI-Linux-64bit/bin/paraview Since version 5.7.0, … --- ## [Resolution of Glyph Type Sphere](https://discourse.paraview.org/t/resolution-of-glyph-type-sphere/2925)
**Author:** [@xikaij](https://discourse.paraview.org/u/xikaij)\ **Replies:** 4\ **Last updated:** [November 7, 2019, 2:38am UTC](https://discourse.paraview.org/t/resolution-of-glyph-type-sphere/2925 "2019-11-07T02:38:01Z")
Dear Paraview Developers/Users: I’m new to Paraview and I used Glyph filter to represent points as spheres by choosing ‘Glyph Type’ to ‘Sphere’. Currently the spheres have relatively sharp edges and corners, how can I i… --- ## [convert NIfti file (nii.gz) to (.vtk)file](https://discourse.paraview.org/t/convert-nifti-file-nii-gz-to-vtk-file/2924)
**Author:** [@nour](https://discourse.paraview.org/u/nour)\ **Replies:** 3\ **Last updated:** [November 6, 2019, 7:22pm UTC](https://discourse.paraview.org/t/convert-nifti-file-nii-gz-to-vtk-file/2924 "2019-11-06T19:22:41Z")
I am working with MRI Nifti dataset and I would convert it to .vtk meshes file. I installed the ITK-SNAP and 3cd converter. but there is a problem exemple : as you see in the picture 1 I couldn’t open the .vtk file ( … --- ## [Paraview](https://discourse.paraview.org/t/paraview/2900)
**Author:** [@Arghavanizad](https://discourse.paraview.org/u/Arghavanizad)\ **Replies:** 9\ **Last updated:** [November 6, 2019, 2:57pm UTC](https://discourse.paraview.org/t/paraview/2900 "2019-11-06T14:57:16Z")
Hi everyone, I faced a problem in Paraview. when I am running the tutorials in OpenFoam and I want to see them in paraview when I use reconstructed case it will show me the geometry but when I use Decomposed case there… --- ## [change point value](https://discourse.paraview.org/t/change-point-value/2904)
**Author:** [@Vaya\_Putra](https://discourse.paraview.org/u/Vaya_Putra)\ **Replies:** 2\ **Last updated:** [November 6, 2019, 3:29am UTC](https://discourse.paraview.org/t/change-point-value/2904 "2019-11-06T03:29:52Z")
Currently I’m doing some 3 dimension visualization with Paraview, consist of 15K points in each point they have value 1 and 0. i got problem when i have to change manually value point from vtu file and its take a long t… --- ## [Calculate spatial average and project value on isosurface](https://discourse.paraview.org/t/calculate-spatial-average-and-project-value-on-isosurface/2918)
**Author:** [@ebreard](https://discourse.paraview.org/u/ebreard)\ **Replies:** 0\ **Last updated:** [November 5, 2019, 10:44pm UTC](https://discourse.paraview.org/t/calculate-spatial-average-and-project-value-on-isosurface/2918 "2019-11-05T22:44:16Z")
Hi, I have cell data in 3D, and I would like to compute the average of a scalar or vector on a isosurface. I am simulating a gravity current (see attached). I can draw the isosurface and would like to compute the ent… --- ## [How to extract cell coordinates in python](https://discourse.paraview.org/t/how-to-extract-cell-coordinates-in-python/2894)
**Author:** [@Miguel\_Angel\_Salazar](https://discourse.paraview.org/u/Miguel_Angel_Salazar)\ **Replies:** 2\ **Last updated:** [November 5, 2019, 3:06pm UTC](https://discourse.paraview.org/t/how-to-extract-cell-coordinates-in-python/2894 "2019-11-05T15:06:05Z")
I have got a PVD file which contains a mesh of hexahedra with a simple scalar field. The PVD file is a collection that links to VTU file. This VTU file is a VTKFile of type UnstructuredGrid. I would like to be able to it… --- ## [Custom Transformation Matrix in Paraview](https://discourse.paraview.org/t/custom-transformation-matrix-in-paraview/2906)
**Author:** [@Reshma](https://discourse.paraview.org/u/Reshma)\ **Replies:** 0\ **Last updated:** [November 5, 2019, 11:09am UTC](https://discourse.paraview.org/t/custom-transformation-matrix-in-paraview/2906 "2019-11-05T11:09:43Z")
Dear All, I am dealing with medical data and I have to apply some custom 4x4 matrix transformation to the data (point Data as well as mesh) in paraview. Unfortunately, there is no built-in filter in paraview which can t… --- ## [frustum selection python](https://discourse.paraview.org/t/frustum-selection-python/2899)
**Author:** [@gilcu2](https://discourse.paraview.org/u/gilcu2)\ **Replies:** 1\ **Last updated:** [November 4, 2019, 11:59am UTC](https://discourse.paraview.org/t/frustum-selection-python/2899 "2019-11-04T11:59:15Z")
Hi, how I can select the cells in a box given its corners in python? Like that with paraview.simple.SelectCells it can be possible but I don’t find documentation about how to do spatial queries. Thanks --- ## [Region of visualization](https://discourse.paraview.org/t/region-of-visualization/2898)
**Author:** [@SCParkerYang](https://discourse.paraview.org/u/SCParkerYang)\ **Replies:** 1\ **Last updated:** [November 4, 2019, 10:50am UTC](https://discourse.paraview.org/t/region-of-visualization/2898 "2019-11-04T10:50:25Z")
Hello I’m a CFD beginner and want to use Paraview to display the result. If my simulation domain is x: -2 ~ 2 y: -2 ~ 2 z: -2 ~ 2 but I only want to display the scalar field inside x: -… --- ## [Crash on load state](https://discourse.paraview.org/t/crash-on-load-state/2859)
**Author:** [@Yepi](https://discourse.paraview.org/u/Yepi)\ **Replies:** 5\ **Last updated:** [November 3, 2019, 7:39pm UTC](https://discourse.paraview.org/t/crash-on-load-state/2859 "2019-11-03T19:39:22Z")
Hello All, New here and just geting started in ParaView and OpenFoam. I am currently going through the OF userguide and got stuck at the cavityFine tutorial. I am using Win 8.1pro, ParaView 5.4.1 64bit, blueCFD Core 20… --- ## [OpenGL error with ParaView 5.7.0 on Linux](https://discourse.paraview.org/t/opengl-error-with-paraview-5-7-0-on-linux/2888)
**Author:** [@olesenm](https://discourse.paraview.org/u/olesenm)\ **Replies:** 2\ **Last updated:** [November 3, 2019, 5:54pm UTC](https://discourse.paraview.org/t/opengl-error-with-paraview-5-7-0-on-linux/2888 "2019-11-03T17:54:06Z")
I can build 5.7.0 without any problems on Linux (with/without MPI), (with/without python), but the resulting binaries bomb immediately with an OpenGL error: $ export LIBGL\_DEBUG=verbose $ paraview libGL: screen 0 does… --- ## [The record type OCONV found in the file is unknown](https://discourse.paraview.org/t/the-record-type-oconv-found-in-the-file-is-unknown/2886)
**Author:** [@Joel](https://discourse.paraview.org/u/Joel)\ **Replies:** 1\ **Last updated:** [November 2, 2019, 1:50pm UTC](https://discourse.paraview.org/t/the-record-type-oconv-found-in-the-file-is-unknown/2886 "2019-11-02T13:50:51Z")
Hi all, I am currently using Radiance to generate an octree and doing ray tracing. After which, I am trying to use Paraview to visualise .dat file created from Radiance but nothing seems to appear on Paraview. The pict… --- ## [Custom filters spread like viruses](https://discourse.paraview.org/t/custom-filters-spread-like-viruses/2597)
**Author:** [@lhofmann](https://discourse.paraview.org/u/lhofmann)\ **Replies:** 2\ **Last updated:** [November 1, 2019, 6:44pm UTC](https://discourse.paraview.org/t/custom-filters-spread-like-viruses/2597 "2019-11-01T18:44:38Z")
ParaView seems to append all custom filters to any statefile that is saved (even custom filters that are not used), and further stores any custom filter, that is read from a statefile, in the local config. This way, cus… --- ## [slice filter disabled](https://discourse.paraview.org/t/slice-filter-disabled/2887)
**Author:** [@cecidip](https://discourse.paraview.org/u/cecidip)\ **Replies:** 3\ **Last updated:** [November 1, 2019, 3:58pm UTC](https://discourse.paraview.org/t/slice-filter-disabled/2887 "2019-11-01T15:58:51Z")
Hi, i have a .xmf file representing a 3D volume … I am trying to display 3 slices of the volume interecting at an specific interest point. However i cant use the filter Slice, it’s disabled. Actually all filters are dis… --- ## [How to extract surface area from unstructured grid](https://discourse.paraview.org/t/how-to-extract-surface-area-from-unstructured-grid/2814)
**Author:** [@fabio.romani](https://discourse.paraview.org/u/fabio.romani)\ **Replies:** 3\ **Last updated:** [October 31, 2019, 3:17pm UTC](https://discourse.paraview.org/t/how-to-extract-surface-area-from-unstructured-grid/2814 "2019-10-31T15:17:58Z")
Hi, I’m working on an unstructured grid layout: the scalars on the coordinates represent some high current densities in the mesh. I’ve created a tiny script that extract all the points with current density above a defin… --- ## [Problem with find data box](https://discourse.paraview.org/t/problem-with-find-data-box/2861)
**Author:** [@Tommaso\_Scali](https://discourse.paraview.org/u/Tommaso_Scali)\ **Replies:** 9\ **Last updated:** [October 31, 2019, 3:12pm UTC](https://discourse.paraview.org/t/problem-with-find-data-box/2861 "2019-10-31T15:12:49Z")
I am a beginner and I’m following the tutorial for ParaView Version 5.4.1. I’m using it in Ubuntu 18.04.3. I can’t get the “Find data” dialog box to work. When I click the button: “Run the selection query” ParaView clos… --- ## [which visual studio versions to build paraview on windows?](https://discourse.paraview.org/t/which-visual-studio-versions-to-build-paraview-on-windows/2880)
**Author:** [@Dave\_DeMarle](https://discourse.paraview.org/u/Dave_DeMarle)\ **Replies:** 3\ **Last updated:** [October 31, 2019, 12:50pm UTC](https://discourse.paraview.org/t/which-visual-studio-versions-to-build-paraview-on-windows/2880 "2019-10-31T12:50:32Z")
Looking at the cmakecache from the tylo, nemesis and hera via the dashboards, all seem to be on visual studio 2015. Is that correct? I’m setting up a new development machine and releases older than 2019 are harder to co… --- ## [Vortex Circulation](https://discourse.paraview.org/t/vortex-circulation/2882)
**Author:** [@S\_J](https://discourse.paraview.org/u/S_J)\ **Replies:** 1\ **Last updated:** [October 31, 2019, 8:10am UTC](https://discourse.paraview.org/t/vortex-circulation/2882 "2019-10-31T08:10:31Z")
How can I identify the vortices and calculate the circulation by passing the x and y coordinates and velocity field? --- ## [Opacity setting changes background color](https://discourse.paraview.org/t/opacity-setting-changes-background-color/2852)
**Author:** [@skindl](https://discourse.paraview.org/u/skindl)\ **Replies:** 6\ **Last updated:** [October 30, 2019, 4:26pm UTC](https://discourse.paraview.org/t/opacity-setting-changes-background-color/2852 "2019-10-30T16:26:08Z")
Hi, I’m generating an image that has a sphere with the “Texture Map to Sphere” filter applied. When I change the opacity of the texture map, the background of the image also changes colors while the Pipeline Browser sho… --- ## [Can we warp by vector from field value at step N onto mesh at step 0?](https://discourse.paraview.org/t/can-we-warp-by-vector-from-field-value-at-step-n-onto-mesh-at-step-0/2865)
**Author:** [@yw5aj](https://discourse.paraview.org/u/yw5aj)\ **Replies:** 1\ **Last updated:** [October 30, 2019, 11:52am UTC](https://discourse.paraview.org/t/can-we-warp-by-vector-from-field-value-at-step-n-onto-mesh-at-step-0/2865 "2019-10-30T11:52:20Z")
The question is - can we warp by vector from field value at step N onto mesh at step 0? This seems to be a common application for solid mechanics simulations where the mesh is updated at every analysis step. Therefore, … --- ## [Creating input data for MultiSliceImageMapper in vtkjs](https://discourse.paraview.org/t/creating-input-data-for-multisliceimagemapper-in-vtkjs/2147)
**Author:** [@benoitpaillard](https://discourse.paraview.org/u/benoitpaillard)\ **Replies:** 4\ **Last updated:** [October 30, 2019, 11:16am UTC](https://discourse.paraview.org/t/creating-input-data-for-multisliceimagemapper-in-vtkjs/2147 "2019-10-30T11:16:58Z")
Hi all, I’m trying to reproduce the example here: The only thing I do not get is you create that headsq.vti file ? I tried to open it in paraview in order to understand how it is built, but without much success… T… --- ## [Ellipse](https://discourse.paraview.org/t/ellipse/2864)
**Author:** [@MarinaVendlCraveiro](https://discourse.paraview.org/u/MarinaVendlCraveiro)\ **Replies:** 3\ **Last updated:** [October 30, 2019, 10:10am UTC](https://discourse.paraview.org/t/ellipse/2864 "2019-10-30T10:10:15Z")
Hi! Is it possible to visualize an ellipse on Paraview? Is it possible to create a vtk file to input this type of geometry? How? Thanks, Marina [Previous page](https://discourse.paraview.org/c/paraview-support/7.md?no_subcategories=false&page=198) [Next page](https://discourse.paraview.org/c/paraview-support/7.md?no_subcategories=false&page=200)