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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.
MotionView
Model Definition Language (MDL)
MDL Command Set Statements
MDL command set statements are used to create a solver command file when a solver input deck is exported from MotionView. A command set can contain MDL command set statements, Templex templates, or a combination of both. The commands in a command set are exported to the solver command file.
*SetMotion() - symmetric motion pair for command sets
Creates a set motion for a pair.

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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
- MotionView
  - Model Definition Language (MDL)
    - MDL Model Statements
      Reference to all MDL statements and blocks that can be used to model a mechanical system.
    - Model Functions
      In MotionView, math or string functions can be used in property fields. These functions help in setting the value of the property that could range from simple arithmetic calculations to complex math equations. These functions also help in setting parametric relations to other properties.
    - MDL Command Set Statements
      MDL command set statements are used to create a solver command file when a solver input deck is exported from MotionView. A command set can contain MDL command set statements, Templex templates, or a combination of both. The commands in a command set are exported to the solver command file.
      - *CommandSet()
        Creates a command set.
      - *DefineCommandSet()
        Defines a command set.
      - *SetActiveCommandSet()
        Creates a set active command set.
      - *SetForce() - line of action for command sets
        Creates a set force.
      - *SetForce() - translational for command sets
        Creates a set force.
      - *SetForce() - rotational for command sets
        Creates a set force with torque.
      - *SetForce() - single component rotation for command sets
        Sets the value for a single component rotational action-reaction force.
      - *SetForce() - single force with user subroutine for command sets
        Sets the values for a translational, rotational line of action and single component rotational force when a user-defined subroutine is used to model the force expression.
      - *SetForce() - translational and rotational for command sets
        Creates a set force with torque.
      - *SetForce() - asymmetric line of action for command sets
        Sets the value for an asymmetric line of action action-reaction force pair.
      - *SetForce() - asymmetric translational for command sets
        Creates a set force for a pair.
      - *SetForce() - asymmetric rotational for command sets
        Creates a set force for a torque pair.
      - *SetForce() - asymmetric translational and rotational for command sets
        Creates a set force for a pair.
      - *SetForce() - asymmetric single component rotation for command sets
        Sets the value for an asymmetric single component rotational action-reaction force pair.
      - *SetForce() - asymmetric force pair with user subroutine for command sets
        Sets the value for a translational, rotational, line of action, and single component rotational asymmetric force pair when a user-defined subroutine is used to model the force expression.
      - *SetForce() - symmetric line of action for command sets
        Creates a set force for a pair.
      - *SetForce() - symmetric translational for command sets
        Creates a set force for a pair.
      - *SetForce() - symmetric translational and rotational for command sets
        Creates a set force for a pair.
      - *SetForce() - symmetric rotational for command sets
        Creates a set force for a torque pair.
      - *SetForce() - symmetric single component rotation for command sets
        Sets the value for a symmetric single component rotational action-reaction force pair.
      - *SetMotion() - single motion for command sets
        Creates a set motion.
      - *SetMotion() - symmetric motion pair for command sets
        Creates a set motion for a pair.
      - *SetMotion() - asymmetric motion pair for command sets
        Creates a set motion for a pair.
      - *SetSolverVariable() - for command sets
        Creates a set solver variable.
      - *SetState() - for command sets
        Sets the state of a force/forcepair, joint/jointpair or motion/motionpair.
      - *Simulate()
        Creates a simulation.
      - *Write() - for command sets
        Writes a previously defined template to the solver command file.
    - Wizard Description Statements
    - Custom Wizard Statements
      Custom wizards allow you to define data processing wizards for use in MotionView sessions. Custom wizards can access data from, and output data to, files and curves in a session using data sets, templates, user-defined forms, curves, procedures and systems.
    - MDL Variables, Implicit Entities, and Templex
      MDL variables, implicit entities, and Templex statements that can be used while creating an entity or expressions in MDL models.
  - Tire Modeling
    Tires are critical elements to modeling a vehicle’s interaction with a road, with some tire models better suited to specific simulation domains.
  - MDL Library Reference Guide
    Overview of the MDL Library reference guide.
- 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.

View All Altair HyperWorks Help

*SetMotion() - symmetric motion pair for command sets

Creates a set motion for a pair.

Syntax

*SetMotion(motion_pair, LEFT/RIGHT, DISP/VEL/ACCL, `motion_expr`)

Arguments

motionpair

The variable name of the set motion.

Type: Varname

LEFT/RIGHT

LEFT: The properties are assigned to the left set motion, and the right is made symmetric to the left.
RIGHT: The properties are assigned to the right set motion, and the left properties are made symmetric to the right.

Type: Boolean

DISP/VEL/ACCL

This argument identifies whether a displacement, velocity, or acceleration is being specified.

Type: Argument

`motion_expr`

A number or MDL expression for the motion.

Type: Argument

Example

*BeginMDL(the_model, "Example model")
*Analysis(the_analysis, "The analysis", andef)
*DefineAnalysis(andef)
  *MotionPair(crank_rot, "Crank rotation", j_crank_pivot)
  *SetMotion(crank_rot, LEFT, DISP, 29)
  *CommandSet(the_commandset, "Simple command set", evdef, frc_0, tpl_begin, tpl_end)
  *Template(tpl_begin, "Begin template", USER, tpldef_commandset_begin)
  *Template(tpl_end, "End template", USER, tpldef_commandset_end)
  *Template(tpl_superfluous, "Should be ignored", ACF, tpldef_commandset_begin)
*EndDefine()
*DefineCommandSet(evdef, local_frc_0, local_tpl_begin, local_tpl_end)
  *Write(local_tpl_begin)
  *SetMotion(crank_rot, LEFT, DISP, 25)
  *Write(local_tpl_end)
*EndDefine()
*DefineTemplate(tpldef_commandset_begin)
{AbsToRelative(Solver_File_basename.path, Solver_File_basename.value + 
".adm")}
PREFERENCES/SIMFAIL=STOPCF
*EndDefine()
*DefineTemplate(tpldef_commandset_end)
STOP
*EndDefine()
*EndMDL()

Context

*BeginMDL()

*DefineCommandSet()

Comments

This statement is similar to the *SetMotion() statement for a model except that it sets the motion or motionpair contents within the solver command file.