# Postprocessing/Visualization **URL:** https://calculix.discourse.group/c/postprocessing-visualization/13.md [Latest](https://calculix.discourse.group/latest.md) · [Categories](https://calculix.discourse.group/categories.md) --- ## [About the Postprocessing/Visualization category](https://calculix.discourse.group/t/about-the-postprocessing-visualization-category/3743)
**Author:** [@dhondt](https://calculix.discourse.group/u/dhondt)\ **Replies:** 0\ **Last updated:** [January 20, 2026, 12:57pm UTC](https://calculix.discourse.group/t/about-the-postprocessing-visualization-category/3743 "2026-01-20T12:57:09Z")
Viewing, extracting, and interpreting results from CalculiX output files (.frd, .dat). Focus on understanding results and troubleshooting output data, not on configuring external tools. --- ## [Full precision output at nodes and integration points](https://calculix.discourse.group/t/full-precision-output-at-nodes-and-integration-points/126)
**Author:** [@benzwick](https://calculix.discourse.group/u/benzwick)\ **Replies:** 13\ **Last updated:** [August 24, 2026, 2:21pm UTC](https://calculix.discourse.group/t/full-precision-output-at-nodes-and-integration-points/126 "2026-08-24T14:21:27Z")
Is it possible to output the full precision (i.e. same values used inside CalculiX solver) displacement at nodes, stress at integration points and stress extrapolated to nodes, preferably in an easy to read format such a… --- ## [Multiple FRD files instead one file](https://calculix.discourse.group/t/multiple-frd-files-instead-one-file/4032)
**Author:** [@jr90236](https://calculix.discourse.group/u/jr90236)\ **Replies:** 2\ **Last updated:** [July 7, 2026, 7:20pm UTC](https://calculix.discourse.group/t/multiple-frd-files-instead-one-file/4032 "2026-07-07T19:20:44Z")
Hi everyone, I am running a thermal analysis, and sometimes the FRD file becomes very large. I am considering modifying the solver so that it writes multiple FRD files, perhaps every 10 increments or something similar. … --- ## [CalculiX (.frd) and pyvista](https://calculix.discourse.group/t/calculix-frd-and-pyvista/3816)
**Author:** [@rafal.brzegowy](https://calculix.discourse.group/u/rafal.brzegowy)\ **Replies:** 3\ **Last updated:** [June 22, 2026, 5:17pm UTC](https://calculix.discourse.group/t/calculix-frd-and-pyvista/3816 "2026-06-22T17:17:28Z")
I am pleased to inform you that I have successfully added native support for reading .frd files directly into PyVista. This feature is currently slated for release with version 0.48, which is expected to be available ar… --- ## [Obtain Element Stresses](https://calculix.discourse.group/t/obtain-element-stresses/2556)
**Author:** [@ademyilmaz](https://calculix.discourse.group/u/ademyilmaz)\ **Replies:** 13\ **Last updated:** [May 26, 2026, 2:31pm UTC](https://calculix.discourse.group/t/obtain-element-stresses/2556 "2026-05-26T14:31:19Z")
Hi, Is it possible to obtain each element nodal stress tensor result ? I want to calculate nodal stresses manually by using each node parent element stresses. Ex: Element-1 : Node 1: Sx : 1 , Sy : 1, Sz : 1 Sxy : 1 … … --- ## [Is it possible to print rotational dofs in .dat file?](https://calculix.discourse.group/t/is-it-possible-to-print-rotational-dofs-in-dat-file/3776)
**Author:** [@MJJ](https://calculix.discourse.group/u/MJJ)\ **Replies:** 6\ **Last updated:** [February 9, 2026, 6:53pm UTC](https://calculix.discourse.group/t/is-it-possible-to-print-rotational-dofs-in-dat-file/3776 "2026-02-09T18:53:44Z")
I have a reference node that is part of a kinematic constraint. I would like to print the rotational dofs (U4, U5, U6). Is it possible to output these in any way? \*NODE PRINT only seems to output translational dofs (U1, … --- ## [8 integration points in dat using cps3 and cps4 elements for plane stress](https://calculix.discourse.group/t/8-integration-points-in-dat-using-cps3-and-cps4-elements-for-plane-stress/2735)
**Author:** [@Paulo](https://calculix.discourse.group/u/Paulo)\ **Replies:** 8\ **Last updated:** [May 10, 2025, 3:50am UTC](https://calculix.discourse.group/t/8-integration-points-in-dat-using-cps3-and-cps4-elements-for-plane-stress/2735 "2025-05-10T03:50:43Z")
Hey, I understand for 2d analysis ccx converts the model to 3d, however looking at the dat file i have non zero stress in the z direction. how can i control the integration points. This is my output. \*MATERIAL,NAME=ste… --- ## [Limit output to \*.frd file to certain element sets](https://calculix.discourse.group/t/limit-output-to-frd-file-to-certain-element-sets/2292)
**Author:** [@febing](https://calculix.discourse.group/u/febing)\ **Replies:** 2\ **Last updated:** [June 1, 2024, 12:20am UTC](https://calculix.discourse.group/t/limit-output-to-frd-file-to-certain-element-sets/2292 "2024-06-01T00:20:35Z")
Hello, i have a model with “ghost” elements. Elements that have a very low stiffness but use the same nodes as the elements the model consists of. This elements are written to the element description part of the \*.frd f… --- ## [Nodal values in FRD files](https://calculix.discourse.group/t/nodal-values-in-frd-files/2082)
**Author:** [@kraviteja](https://calculix.discourse.group/u/kraviteja)\ **Replies:** 1\ **Last updated:** [February 12, 2024, 8:02am UTC](https://calculix.discourse.group/t/nodal-values-in-frd-files/2082 "2024-02-12T08:02:56Z")
Hi All, I have a question about the nodal values stored in the FRD file when using the \*EL FILE command. The manual for ccx2.18 says “This option is used to save selected element variables averaged at the nodal points i… --- ## [Exporting Mode Shapes](https://calculix.discourse.group/t/exporting-mode-shapes/182)
**Author:** [@Steeve](https://calculix.discourse.group/u/Steeve)\ **Replies:** 7\ **Last updated:** [December 15, 2021, 1:11pm UTC](https://calculix.discourse.group/t/exporting-mode-shapes/182 "2021-12-15T13:11:50Z")
Hello, Is there a way to export the mode shapes (from a modal analysis) of a node set?