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Altair Feko  2025 Documentation
Altair Feko 2025 Documentation

2025

Index
  1. Home
  2. POSTFEKO

    POSTFEKO, the Feko post processor, is used to display the model (configuration and mesh), results on graphs and 3D views.

  3. Quick Tour of the POSTFEKO Interface

    View the main elements and terminology in the POSTFEKO graphical user interface (GUI).

  • Welcome
  • Release Notes

    See what's new in the latest release.

  • Get Started

    The Feko Getting Started Guide contains step-by-step instructions on how to get started with Feko.

  • Examples

    The Feko Example Guide contains a collection of examples that teaches you Feko concepts and essentials.

  • Introduction to Feko

    Feko is a comprehensive electromagnetic solver with multiple solution methods that is used for electromagnetic field analyses involving 3D objects of arbitrary shapes.

  • CADFEKO

    CADFEKO is used to create and mesh the geometry or model mesh, specify the solution settings and calculation requests in a graphical environment.

  • POSTFEKO

    POSTFEKO, the Feko post processor, is used to display the model (configuration and mesh), results on graphs and 3D views.

    • Introduction to POSTFEKO

      Use POSTFEKO to validate meshed geometry and analyse and post-process results.

    • Quick Tour of the POSTFEKO Interface

      View the main elements and terminology in the POSTFEKO graphical user interface (GUI).

      • Quick Access Toolbar

        The quick access toolbar is a small toolbar that gives quick access to actions that are often performed.

      • Ribbon

        The ribbon is a command bar that groups similar actions in a series of tabs.

      • Project Browser

        The project browser is a panel that lists the models loaded in the current project, imported data, stored data and scripted data.

      • Model Browser

        The model browser is a panel that organises the model information of the selected model in the project browser, into two separate tabs.

      • Details Browser

        The details browser is a panel that shows in-depth detail for the selected item in the model browser.

      • Status Bar

        The status bar is a small toolbar that gives quick access to general display settings, tools, and graph cursor settings.

      • 3D Views and Graphs

        3D views are used to display mesh, solution settings and interact with the model as well as view 3D results. Graphs are used to display 2D results.

      • Result Palette

        The result palette is a panel that gives access to options that control the data in the 3D view or graph.

      • Help

        The Help icon provides access to the Feko documentation.

      • Search Bar

        The search bar is a single-line text field that allows you to enter search terms and find relevant information in the GUI or the documentation.

      • Application Launcher

        The application launcher toolbar is a small toolbar that provides quick access to other Feko components.

      • Application Menu

        The application menu is similar to a standard file menu of an application. It allows saving and loading of models, print functionality and gives access to application-wide settings.

      • Scripting

        Use the application programming interface (API) to control CADFEKO from an external script.

    • Preferences

      POSTFEKO has various default settings that you can configure to customise it to your preference.

    • Rendering Options

      A number of rendering options are available to ensure that 3D models and graphs (containing a large number of sample points) are rendered efficiently.

    • Model and Project Basics

      You can add a model, open an existing project and save the project.

    • Data Import

      Import text files, native data files and Touchstone format files.

    • Data Export

      POSTFEKO supports the export of native file formats. These files can be exported to use in other sessions or when further post-processing is required.

    • Terminology

      The terms, dataset, slice, trace and 3D result, are used extensively in the documentation. Review the definitions to get a better concept of these definitions.

    • Graphs (Cartesian, Polar and Smith Charts)

      Display result data on a graph to allow visual interpretation of the data in a human-readable format, as well as to communicate the results in reports and presentations.

    • Cartesian Surface Graphs

      A Cartesian surface graph is a flat colour plot with results plotted against two independent axes.

    • 3D Views

      View the simulation data in a 3D view to allow visual interpretation of the data in a human-readable format, as well as to communicate the results in reports and presentations. The 3D view can also be used to verify that the CADFEKO or EDITFEKO model is correct.

    • Frequency Domain Results

      The Solver contains a number of frequency domain solution methods, as well as a time domain solution method. By default, all simulation results are obtained in the frequency domain, unless explicitly using the time analysis tool in POSTFEKO to convert the results to the time domain.

    • Time Domain Results

      With the time analysis tool in POSTFEKO, electromagnetic scattering problems can be analysed in the time domain. The time domain results are obtained by applying an inverse fast Fourier transformation (IFFT) on the frequency domain simulation results.

    • Animation

      Use animation to obtain a better understanding of results or export the animation to use in a presentation or report.

    • Generating Reports

      POSTFEKO is a useful tool to help analyse and present data in a useful format. It is often required to use the processed results in a report or presentation. To help make it easier to generate these reports, several tools are available in POSTFEKO.

    • Lua Scripting

      Feko provides a powerful scripting language that allows you to create scripts that control CADFEKO and POSTFEKO.

    • Tools

      POSTFEKO has a collection of tools that allows you to quickly validate the model, for example, measure distances, measure angles and finding specific mesh elements.

    • Math Functions in POSTFEKO

      View the list of supported math functions.

    • Files Generated by POSTFEKO

      View the files associated and generated by POSTFEKO.

    • Default Shortcut Keys

      View the shortcut keys available for POSTFEKO for faster and easier operation of POSTFEKO.

  • EDITFEKO

    EDITFEKO is used to construct advanced models (both the geometry and solution requirements) using a high-level scripting language which includes loops and conditional statements.

  • Feko Solution Methods

    One of the key features in Feko is that it includes a broad set of unique and hybridised solution methods. Effective use of Feko features requires an understanding of the available methods.

  • Optimisation in Feko

    Feko offers state-of-the-art optimisation engines based on generic algorithm (GA) and other methods, which can be used to automatically optimise the design and determine the optimum solution.

  • Feko Utilities

    The Feko utilities consist of PREFEKO, OPTFEKO, ADAPTFEKO, the Launcher utility, Updater and the crash reporter.

  • Description of the Output File of Feko

    Feko writes all the results to an ASCII output file .out as well as a binary output file .bof for usage by POSTFEKO. Use the .out file to obtain additional information about the solution.

  • Feko Application Macros

    A large collection of application macros are available for CADFEKO and POSTFEKO.

  • Scripts and Application Programming Interface (API)

    CADFEKO and POSTFEKO have a powerful, fast, lightweight scripting language integrated into the application allowing you to create models, get hold of simulation results and model configuration information as well as manipulation of data and automate repetitive tasks.

  • Appendix

    Reference information is provided in the appendix.

Quick Tour of the POSTFEKO Interface

View the main elements and terminology in the POSTFEKO graphical user interface (GUI).

Figure 1. The POSTFEKO window.


  1. Quick Access Toolbar
  2. Ribbon
  3. Project Browser
  4. Model Browser
  5. Details Browser
  6. Status Bar
  7. 3D Views and Graphs
  8. Result Palette
  9. Help
  10. Search Bar
  11. Application Launcher
  12. Application Menu
  • Quick Access Toolbar
    The quick access toolbar is a small toolbar that gives quick access to actions that are often performed.
  • Ribbon
    The ribbon is a command bar that groups similar actions in a series of tabs.
  • Project Browser
    The project browser is a panel that lists the models loaded in the current project, imported data, stored data and scripted data.
  • Model Browser
    The model browser is a panel that organises the model information of the selected model in the project browser, into two separate tabs.
  • Details Browser
    The details browser is a panel that shows in-depth detail for the selected item in the model browser.
  • Status Bar
    The status bar is a small toolbar that gives quick access to general display settings, tools, and graph cursor settings.
  • 3D Views and Graphs
    3D views are used to display mesh, solution settings and interact with the model as well as view 3D results. Graphs are used to display 2D results.
  • Result Palette
    The result palette is a panel that gives access to options that control the data in the 3D view or graph.
  • Help
    The Help icon provides access to the Feko documentation.
  • Search Bar
    The search bar is a single-line text field that allows you to enter search terms and find relevant information in the GUI or the documentation.
  • Application Launcher
    The application launcher toolbar is a small toolbar that provides quick access to other Feko components.
  • Application Menu
    The application menu is similar to a standard file menu of an application. It allows saving and loading of models, print functionality and gives access to application-wide settings.
  • Scripting
    Use the application programming interface (API) to control CADFEKO from an external script.

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