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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.
Tcl/Tk Commands
The application's scripting interface is a set of Tcl/Tk commands that follow a simple and consistent syntax.
Tcl/Tk Commands
Tcl/Tk classes for the following Altair HyperWorks applications.
Framework
hwIProject Class
hwIProject IsEmpty
Checks to see if the project is empty.

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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.
  - Program with APIs for Beginners
    APIs can be used to perform various actions in an application. For example, the AddPage API can be used to add a page within the project.
  - Object Hierarchy
    Overview of object hierarchy for HyperView, HyperGraph, HyperMesh, MotionView, MediaView and TextView.
  - Tcl/Tk Classes
    Links to the introductory pages for the Tcl/Tk commands that can be used in HyperView, MotionView, HyperGraph, HyperGraph 3D, TextView and MediaView.
  - Script Use Cases
    Examples of script uses cases.
  - Tcl/Tk Example
    Learn more about Tcl/Tk with this basic example.
  - Program with Tcl/Tk Command Tutorials
    Learn more about programming with Tcl/Tk commands with this tutorial.
  - Tcl/Tk Commands
    Tcl/Tk classes for the following Altair HyperWorks applications.
    - Framework
      - amfIMarker Class
      - amfIMeasure Class
      - amfIMovie Class
      - hwi Class
      - hwI2DViewControl Class
      - hwI3DViewControl Class
      - hwIAMFExportOptions Class
      - hwIAnimator Class
      - hwIAnimator AtModelStep
      - hwIAVIExportOptions Class
      - hwIClientInfo Class
      - hwIDataFile Class
      - hwIFont Class
      - hwIH3DExportOptions Class
      - hwIHWC Class
      - hwIJPGExportOptions Class
      - hwILayer Class
      - hwIMessageLog Class
      - hwIObject Class
      - hwIPage Class
      - hwIPPTPublish Class
      - hwIPPTPublishOption Class
      - hwIPreferenceManager Class
      - hwIProject Class
        hwIProject AddLayer
        Adds a new layer to the project.
        hwIProject AddPage
        Adds a new page to the project's page list.
        hwIProject CopyPage
        Copies a page.
        hwIProject CutPage
        Cuts a page.
        hwIProject GetActivePage
        Returns the active page index.
        hwIProject GetLayerHandle
        Returns the layer for the given ID.
        hwIProject GetLayerList
        Returns a list of the layers on this page.
        hwIProject GetNumberOfLayers
        Returns the number of layers in the project.
        hwIProject GetNumberOfPages
        Returns the number of pages in the project.
        hwIProject GetPageHandle
        Returns the page for the given page name.
        hwIProject GetTemplexHandle
        Returns the Templex object handle. This handle type is dependent upon the current client type.
        hwIProject GetWindowHandle
        Returns the window for the given ID.
        hwIProject InsertPage
        Inserts a page.
        hwIProject IsDirty
        Checks to see if the session has unsaved data.
        hwIProject IsEmpty
        Checks to see if the project is empty.
        hwIProject MovePage
        Moves a page.
        hwIProject OverlayPage
        Combines pages.
        hwIProject PastePages
        Pastes previously copied or cut pages.
        hwIProject RemovePage
        Removes the given page from the project's collection.
        hwIProject SetActivePage
        Sets the given page as active.
      - hwIReportTemplate Class
      - hwISession Class
      - hwITemplex Class
      - hwIViewControl Class
      - hwIWindow Class
      - hwIXMLFile Class
    - MotionView
    - HyperView
    - HyperGraph 2D
    - HyperGraph 3D
    - MediaView
    - TextView
    - HgTrans
    - TableView
    - Postquery Commands
    - Context Commands
    - Framework Commands
- 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
- 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.

hwIProject IsEmpty

Checks to see if the project is empty.

Syntax

hwIProject_handle IsEmpty

Application

Tcl Modify

Description

This command checks whether the project is empty.

true: If the project is empty.
false: If the project has content.

Example

hwi GetSessionHandle sess;
sess GetProjectHandle proj;
proj IsEmpty

Error

Success (true or false) or an error message is returned.

Keywords

Tcl

Modify