Home
API, Reference Guides
Overview of external readers and the Altair Binary Format, the generic ASCII reader, running applications in batch mode, using Tcl/Tk commands, translators, and result math.
HyperMesh
Scripts
This section contains details on general HyperWorks scripting concepts, along with documentation on the Tcl commands that can be used to query and modify the database and GUI.
Commands and Functions
Tcl GUI Commands
Commands that operate on the HyperMesh GUI widgets.
hm_viewprevious
Returns the view to the previous view.

Welcome
What's New
View new features for version 2025.1.
Get Started
Learn the basics and discover the workspace.
Tutorials
Discover product functionality with interactive tutorials.
API, Reference Guides
Overview of external readers and the Altair Binary Format, the generic ASCII reader, running applications in batch mode, using Tcl/Tk commands, translators, and result math.
- Extensions
  Extensions are programs integrated with the application to enhance or extend the user experience.
- External Readers and Altair Binary Format
  Altair Binary Format (ABF) is the standard binary format read by the program. A library called abflib allows you to create files in ABF.
- Generic ASCII Reader
  A generic ASCII reader is now available which allows you to bring custom results directly into HyperView. The Altair ASCII format is useful for reading the results of any in-house or propriety codes which are saved in a generic format.
- Batch Mode
  Batch mode allows you perform a series of operations outside the program interface.
- External Resources
  External resources can be registered in preference files, session files, or Templex files. If an external resource is registered in a program session, it is automatically registered in the session file when the session is saved.
- Python API
  The Python API documentation for HyperMesh applications.
- Tcl/Tk Commands
  The application's scripting interface is a set of Tcl/Tk commands that follow a simple and consistent syntax.
- Translators
  Translators are utilities that are run from the command line of the operating system to convert various types of files into different formats.
- Result Math
  XML commands in the Result Math Module.
- HWC Console
  Record playback workflows in the application.
- HyperMesh Report
- Task Manager
  Use the Task Manager to load an XML file that defines tasks and their attributes.
- HyperMesh
  - API Programmer's Guides
    These provide an overview of all additions, updates, and changes to the HyperMesh APIs for each release.
  - Data Names
    Details on the core data that can be queried and manipulated.
  - Ext API
    This API allows external applications to link HyperMesh as a library and provides a limited set of functions and structures to access specific functionality.
  - FE Input Readers
    FE input readers are C programs that read information from ASCII or binary finite element models files into the HyperMesh database.
  - HMASCII
    Details on the HMASCII format and associated commands.
  - Scripts
    This section contains details on general HyperWorks scripting concepts, along with documentation on the Tcl commands that can be used to query and modify the database and GUI.
    - Introduction
    - Create Scripts
      The functionality of the HyperMesh Tcl Modify Command commands are available through Tcl. Additionally, commands that allow you to extract information from the HyperWorks database, such as entity ID numbers on a mark, a list of assemblies, component names, elements per component, nodes per element, node values, and so forth. These are known as HyperMesh Tcl Query Command commands. They are used to query information from the database or template system.
    - Run Scripts
      Tcl/Tk scripts can be run in several ways.
    - Commands and Functions
      - Tcl GUI Commands
        Commands that operate on the HyperMesh GUI widgets.
        hm_arcball
        Allows rotation of the model by manipulating a virtual sphere.
        hm_callcollectorpanel
        Displays the collector selector widget for selecting a single collector/named entity.
        hm_callhelp
        Displays the HTML help for a specific book and topic.
        hm_callincludepanel
        Displays the include selector widget for selecting a single include.
        hm_circlezoom
        Allows you to select a region to zoom into.
        hm_clearmarker
        Clears the graphical marker created by hm_plotmarker.
        hm_clearshape
        Clears the graphical shape created by hm_plotshape.
        hm_collectordisplayed
        Returns the display status of a collector.
        hm_editcard
        Launches the Card Editor to edit a specific entity or mark of entities.
        hm_edittextcard
        Launches the Tk control Card Editor to edit a text control card.
        hm_errormessage
        Displays a custom error message in the status bar.
        hm_exit
        Exits HyperMesh.
        hm_fbdplot
        Create FBD panel or bar plots.
        hm_framework
        Controls certain options and of the HyperMesh GUI framework.
        hm_getcurrentview
        Returns the transformation matrix for the current view.
        hm_getdirectionpanel
        Provides a widget to define a direction/vector.
        hm_getfilename
        Get a filename using an open file dialog.
        hm_getfloat
        Get a floating point value using a dialog.
        hm_getgraphicsarea
        Returns the x, y, width and height of the modeling window.
        hm_getint
        Get an integer value using a dialog.
        hm_getloadplotstate
        Queries the current load plot state.
        hm_getplanepanel
        Provides a widget to define a plane.
        hm_getstring
        Get a string value using a dialog.
        hm_getwindowarea
        Returns the x, y, width and height of a window.
        hm_highlightentity
        Control the highlighting of a single entity collector.
        hm_highlightlist
        Control the highlighting of a list of entities.
        hm_highlightmark
        Control the highlighting of a mark of entities.
        hm_idmgrmessagebox
        Turn on or off the message box for ID Manager messages.
        hm_launchhb
        Launches the HyperBeam GUI with a specified beam section loaded by default.
        hm_panview
        Performs a dynamic pan of the model.
        hm_plotloads
        Plot engineering loads with various options.
        hm_plotentity
        Plots entity as either a vector or a contour plot.
        hm_plotmarker
        Creates a graphical marker.
        hm_plotshape
        Creates a graphical shape.
        hm_posteeforentity
        Posts a pop-up for a selected entity.
        hm_posteeformarkmask
        Posts a pop-up for a mark of entities.
        hm_redraw
        Redraws the HyperMesh window.
        hm_registerentitysubtypefilter
        Registers an entity sub-type filter for usage by *createmarkpanel or *createentitypanel.
        hm_registerkeyproc
        Registers a script or command to a keyboard shortcut.
        hm_registerredraw
        Specifies if markers and shapes should be redrawn when the associated entity is modified.
        hm_getscreenvector
        Returns either the normal or parallel screen vector.
        hm_setentitysubtype
        Use this command in conjunction with the creation of filters to add only entities of the stated type to the filter.
        hm_setmouse
        Use this command in Tcl procedures to show the user that HyperMesh is working.
        hm_setpanelproc
        Clears HyperMesh panels, and sets <procedure name> as a macro to be called.
        hm_unregisterentitysubtypefilter
        Unregisters an entity sub-type filter for usage by *createmarkpanel or *createentitypanel.
        hm_usermessage
        Displays a custom user message in the status bar.
        hm_viewbottomside
        Sets the model to the bottom side view.
        hm_viewccw
        Rotates the model counter-clockwise about an axis oriented perpendicular to the screen.
        hm_viewclear
        Clears a saved view.
        hm_viewcw
        Rotates the model clockwise about an axis oriented perpendicular to the screen.
        hm_viewdown
        Rotates the model down about an axis oriented horizontally across the screen.
        hm_viewfit
        Fits the model view into the modeling window.
        hm_viewfrontside
        Sets the model to the front side view.
        hm_viewisometric
        Sets the model to the isometric view.
        hm_viewleft
        Rotates the model left about an axis oriented vertically across the screen.
        hm_viewleftside
        Sets the model to the left side view.
        hm_viewlist
        Returns the list of saved views.
        hm_viewprevious
        Returns the view to the previous view.
        hm_viewproject
        Converts an x,y,z model coordinate to a modeling window coordinate.
        hm_viewrearside
        Sets the model to the rear side view.
        hm_viewreverse
        Rotates the model 180 degrees about an axis oriented vertically across the screen.
        hm_viewright
        Rotates the model right about an axis oriented vertically across the screen.
        hm_viewrightside
        Sets the model to the right side view.
        hm_viewshaded
        View all components in shaded mode with no feature or mesh lines.
        hm_viewshadedfeatures
        View all components in shaded mode with feature lines.
        hm_viewshadedmesh
        View all components in shaded mode with mesh lines.
        hm_viewtopside
        Sets the model to the top side view.
        hm_viewunproject
        Converts an x,y,z graphic window coordinate to a modeling windowcoordinate.
        hm_viewup
        Rotates the model up about an axis oriented horizontally across the screen.
        hm_viewwireframe
        View all components in wire frame mode.
        hm_windowtoclipboard
        Capture a rectangular area of the screen and save it to the clipboard.
        hm_windowtofile
        Capture a rectangular area of the screen and save it to a file.
        hm_winfo
        Returns the value of certain HyperMesh window settings.
        hm_wm
        Provides a limited interface to the HyperMesh window.
        hm_zoomin
        Zooms into the model.
        hm_zoomout
        Zooms out of the model.
        hmbrapi
        Returns information about hmbr3 browser views and selections.
        Deprecated Tcl GUI Commands
        The list of deprecated Tcl GUI commands, and the new commands to use.
        Undocumented Tcl GUI Commands
        The list of undocumented Tcl GUI commands.
      - Tcl Modify Commands
        Commands that modify the HyperMesh database.
      - Tcl Query Commands
        Commands that query the HyperMesh database.
  - Solver Templates
    Solver templates are ASCII data files containing HyperMesh Template Language Commands and HyperMesh Template Language Functions.
- MotionView
- Templex and Math Reference Guide
- Script and Model Library
  The Script and Model Library is a database of freely accessible scripts and models posted by users and Altair engineers.

hm_viewprevious

Returns the view to the previous view.

Syntax

hm_viewprevious

Type

HyperMesh Tcl GUI Command

Description

This command allows the user to return the view to the previous view.

Example

hm_viewprevious

Errors

None.