HyperWorks Desktop

2021

Home
HyperWorks Desktop Reference Guides
Overview of external readers and the Altair Binary Format, the generic ASCII reader, running HyperWorks in batch mode, using Tcl/Tk commands, translators, and result math.
HyperWorks Desktop
Tcl/Tk Commands
The HyperWorks Desktop 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 HyperWorks Desktop applications.
HyperView
poIModel Class

What's New
Get Started
Tutorials
Startup Procedures and Customizations
Manage Files and Data
Display Controls
Session Navigation
Publish Sessions
Parameterize Report Templates
Workflow Automation
HyperWorks Collaboration Tools
HyperWorks Desktop Reference Guides

2021

HyperWorks Desktop

What's New
View new features for HyperWorks Desktop 2021.
Get Started
Learn the basics and discover the workspace.
Tutorials
Discover HyperWorks Desktop functionality with interactive tutorials.
Startup Procedures and Customizations
Start HyperWorks Desktop and configure the applications.
Manage Files and Data
Learn how to create, open, import and save models.
Display Controls
Control the view and display of your model in the modeling window.
Session Navigation
Use the Session Browser to view the current session and all the pages and windows it contains in a hierarchical display.
Publish Sessions
Publish your HyperWorks Desktop session to HTML, PowerPoint, or Report files.
Parameterize Report Templates
Use the Parameters Browser to parameterize the contents of a session file or report template and automate a variety of analysis processes.
Workflow Automation
Automate common workflows using the Process Manager or Automate tool.
HyperWorks Collaboration Tools
Explore, organize and manage your personal data, collaborate in teams, and connect to other data sources, such as corporate PLM systems to access CAD data or publish simulation data.
HyperWorks Desktop Reference Guides
Overview of external readers and the Altair Binary Format, the generic ASCII reader, running HyperWorks in batch mode, using Tcl/Tk commands, translators, and result math.
- HyperWorks Desktop
  - 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.
  - Tcl/Tk Commands
    The HyperWorks Desktop scripting interface is a set of Tcl/Tk commands that follow a simple and consistent syntax.
    - Program with HyperWorks APIs for Beginners
      APIs can be used to perform various actions in HyperWorks. For example, the AddPage API can be used to add a page within the project.
    - Object Hierarchy
      Overview of object hierarchy for HyperView, HyperGraph, HyperWorks Desktop, 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 HyperWorks Tcl/Tk Command Tutorials
      Learn more about programming with HyperWorks Tcl/Tk commands with this tutorial.
    - Tcl/Tk Commands
      Tcl/Tk classes for the following HyperWorks Desktop applications.
      - HyperWorks Desktop
      - MotionView
      - HyperView
        
        Hotspot Finder API Structure
        
        Upfront Data Loader APIs
        
        poI3DViewCtrl Class
        
        poIAdvancedQuery Class
        
        poIAssembly Class
        
        poIBestView Class
        
        poICFD Class
        
        poICFD_rake Class
        
        poICollisionCtrl Class
        
        poICollisionSet Class
        
        poIComplexCtrl Class
        
        poIComponent Class
        
        poIContourCtrl Class
        
        poIExplosion Class
        
        poIFBDCtrl Class
        
        poIFLDCtrl Class
        
        poIGraphicMaterial Class
        
        poIImagePlaneCtrl Class
        
        poIImagePlane Class
        
        poIIsoValueCtrl Class
        
        poILayerFilter Class
        
        poILegend Class
        
        poIMeasure Class
        
        poIModel Class
        
        poIModel AddAssembly
        Adds a new assembly.
        
        poIModel AddExplosion
        Adds a new explosion to the current model.
        
        poIModel AddPart
        Creates a part from the given part reference parented by the given assembly locator string.
        
        poIModel AddSelectionSet
        Creates a new selection set on the current model.
        
        poIModel AddTrackingSystem
        Creates a tracking system and assigns a name.
        
        poIModel AddUserDefinedSystem
        Adds a new coordinate system to the current model.
        
        poIModel ApplyDefaults
        Sets component material to default values. Calling this command on an assembly has no affect.
        
        poIModel ApplyStyleTo
        Applies the style of the current model to another model on the current page, or on a different page in the session.
        
        poIModel ChangeSelectionSetType
        Changes the type of the current selection set with respect to the selection set entity binding.
        
        poIModel DefineAssembly
        Defines an assembly in a model.
        
        poIModel GetActiveExplosion
        Gets the ID of the active explosion.
        
        poIModel GetActiveTrackingSystem
        Gets the active tracking system ID.
        
        poIModel GetAssemblyHandle
        Gets an assembly handle for the given assembly locator string.
        
        poIModel GetAssemblyID
        Gets the parent assembly's ID.
        
        poIModel GetBoundingBox
        Returns the bounding box coordinates of the model.
        
        poIModel GetChildrenList
        Gets the number of child components. For an assembly, only the child parts and assemblies are returned, the IDs of child systems are not returned.
        
        poIModel GetColor
        Gets the component color index. If this component is an assembly, the returned color will always be the first one listed in the color table.
        
        poIModel GetColorMode
        Gets the current color mode for the model.
        
        poIModel GetColorModeList
        Gets the list of available color modes.
        
        poIModel GetComponentHandle
        Gets a handle to the given component by ID.
        
        poIModel GetComponentID
        Gets the component ID.
        
        poIModel GetDisplayMode
        Gets the component display option setting. If this component is an assembly, true will indicate that one or more child parts have the display mode set.
        
        poIModel GetDisplayModeList
        Gets the list of component display modes.
        
        poIModel GetEntityCount
        Gets the number of entities of a particular pool type and optionally, the pool label.
        
        poIModel GetEntityInfo
        Returns the property information for a given entity.
        
        poIModel GetEntityList
        Gets the list of entity IDs in a given pool.
        
        poIModel GetExplosionList
        Gets a list of explosion IDs.
        
        poIModel GetFileName
        Gets the model file name.
        
        poIModel GetGlobalPropertyList
        Gets the global property list.
        
        poIModel GetID
        Gets the model ID.
        
        poIModel GetLabel
        Gets the label ID.
        
        poIModel GetMaskedElements
        Populates the given set with the currently masked elements.
        
        poIModel GetMaterial
        Gets the component material ID (zero if none assigned). If this is an assembly, -1 is always returned.
        
        poIModel GetMeshMode
        Gets the component's mesh mode. If this is an assembly, ALL child parts must be set to the same mesh mode, otherwise the returned mode will be "none".
        
        poIModel GetNumberOfChildren
        Gets the number of child components.
        
        poIModel GetNumberOfComponents
        Gets the number of components in this model.
        
        poIModel GetNumberOfElements
        Gets the number of elements in this model.
        
        poIModel GetNumberOfNodes
        Gets the number of nodes in this model.
        
        poIModel GetNumberOfParts
        Gets the number of parts in this model.
        
        poIModel GetNumberOfSystems
        Gets the number of systems in the model.
        
        poIModel GetPartAssemblyHandle
        Gets a handle to the given part assembly by ID.
        
        poIModel GetPartAssemblyList
        Gets the list of part assembly IDs in the model.
        
        poIModel GetPartHandle
        Gets a handle to the given part by ID.
        
        poIModel GetPolygonMode
        Gets the component's polygon mode. If this is an assembly, ALL child parts must have the same polygon mode set, otherwise the returned mode will be "none".
        
        poIModel GetPoolList
        Gets the list of pools for the particular type in this model.
        
        poIModel GetPoolTypeList
        Gets the type of pools available in this model.
        
        poIModel GetQueryCtrlHandle
        Gets a handle to the query control object.
        
        poIModel GetReaderName
        Gets the model reader name.
        
        poIModel GetResultCtrlHandle
        Gets a handle to the result control object.
        
        poIModel GetReaderPropertyList
        Returns the reader options which were used to read the model data.
        
        poIModel GetResultFileName
        Gets the attached result file name.
        
        poIModel GetResultList
        Gets the list of loaded result IDs.
        
        poIModel GetResultReaderName
        Gets the result reader name.
        
        poIModel GetResultReaderPropertyList
        Returns the reader options which were used to read the result data.
        
        poIModel GetSelectionSetHandle
        Retrieves the handle for a particular selection set.
        
        poIModel GetSelectionSetList
        This command retrieves a list of all selection set IDs on the current model.
        
        poIModel GetStyleList
        Gets a list of styles that can be applied to other models.
        
        poIModel GetSyncBlockID
        Gets the model sync block ID.
        
        poIModel GetSystemGroupList
        Gets the list of coordinate system groups (analogous to the HyperMesh system collectors).
        
        poIModel GetSystemHandle
        Gets the coordinate system handle by ID.
        
        poIModel GetSystemList
        Gets a list of coordinate systems for the given group ID.
        
        poIModel GetTracingCtrlHandle
        Gets the tracing control.
        
        poIModel GetTracingMode
        Gets the component's tracing mode. If this is an assembly mode, "ff" is always returned.
        
        poIModel GetTrackingSystemDisplayMode
        Gets the tracking system's drawing mode.
        
        poIModel GetTrackingSystemHandle
        Gets a handle to the given tracking system by ID.
        
        poIModel GetTrackingSystemList
        Gets a list of tracking system IDs.
        
        poIModel GetTranslation
        Gets the translation vector in the global coordinate system. If this component is an assembly, a zero translation will always be returned.
        
        poIModel GetType
        Gets the component's type string.
        
        poIModel GetUserDefinedSystemHandle
        Gets a handle for the user-defined system as specified by the ID string.
        
        poIModel GetUserDefinedSystemList
        Gets a list containing all of the user-defined systems present in the current model.
        
        poIModel GetUserDefinedSystemTypeList
        Gets a list containing all of the possible types of user-defined systems which can be created.
        
        poIModel GetVisibility
        Gets the model's visibility state.
        
        poIModel GetVisibleNodesCoordinatesList
        Gets the coordinates of the currently visible nodes for the part (part_locator). If for example there is an active 0 width cross section, only the nodes on the cut will be returned (the same will be true for ISO sections). Node positions will be listed only once.
        
        poIModel GetZViewableCount
        Returns the number of entities in the selection set which are visible in the current view orientation.
        
        poIModel Mask
        Masks the contents of a selection set.
        
        poIModel MaskAll
        Masks all parts or systems.
        
        poIModel MaskOffScreen
        Masks off screen elements.
        
        poIModel RemoveAssembly
        Removes an assembly from the model.
        
        poIModel RemoveExplosion
        Removes the given explosion by ID.
        
        poIModel RemovePart
        Removes the given part reference from its parent.
        
        poIModel RemoveResult
        Removes a result from the model.
        
        poIModel RemoveSelectionSet
        Removes a selection set on the current model.
        
        poIModel RemoveTrackingSystem
        Removes the given tracking system by ID.
        
        poIModel RemoveUserDefinedSystem
        Removes a user-defined system from the current model.
        
        poIModel ReverseMask
        Reverses the visibility on elements and systems.
        
        poIModel SetActiveExplosion
        Sets the active explosion by ID.
        
        poIModel SetActiveTrackingSystem
        Sets the active tracking system by ID.
        
        poIModel SetApproximationError
        Sets the model's approximation error.
        
        poIModel SetAssemblyID
        Sets the parent to the assembly identified by assy_id. This will always fail. You cannot change the model's parent.
        
        poIModel SetAttribute
        Enables or disables the selection set identified by the set_id.
        
        poIModel SetColor
        Sets the component's color index. This command will be invalid if it is called on a component that is an assembly, doing so will have no affect, and a warning will be returned.
        
        poIModel SetColorMode
        Sets the current color mode for the model.
        
        poIModel SetDisplayMode
        Sets the component display option setting. If this component is an assembly, all the child parts will be set to this state.
        
        poIModel SetLabel
        Sets the model label.
        
        poIModel SetMaterial
        Sets the component material index. Calling this command on an assembly has no affect.
        
        poIModel SetMeshMode
        Sets the component's mesh mode. If this is an assembly, ALL child parts are set to the specified mesh mode.
        
        poIModel SetPolygonMode
        Sets the component's polygon mode. If this is an assembly, ALL child parts are set to the specified polygon mode.
        
        poIModel SetResult
        Attaches the given result file to the model.
        
        poIModel SetSync
        Sets the model sync value.
        
        poIModel SetTracingMode
        Sets the component's tracing mode. This command has no affect on an assembly.
        
        poIModel SetTrackingSystemDisplayMode
        Sets the tracking system drawing mode.
        
        poIModel SetTranslation
        Sets the translation vector in the global coordinate system. If this component is an assembly, a zero translation will always be returned. Translating/exploding the root level (model) assembly is an invalid operation. The translation will be put into a TRANSLATION mode explosion.
        
        poIModel SetVisibility
        Sets the model's visibility state (doesn't affect part/element visibility).
        
        poIModel UnMask
        Unmasks the contents of a selection set.
        
        poIModel UnMaskAll
        Unmasks all elements.
        
        poIModel UnMaskOnScreen
        Unmasks screen elements.
        
        6 more
        
        poINote Class
        
        poIPart Class
        
        poIPartAssembly Class
        
        poIPost Class
        
        poIPostManager Class
        
        poIQueryCtrl Class
        
        poIQueryDistanceRule Class
        
        poIQueryExpressionRule Class
        
        poIQueryExtremeRule Class
        
        poIQueryIgnoreElemTypeRule Class
        
        poIQueryIterator Class
        
        poIQueryRule Class
        
        poIQuerySetRule Class
        
        poIRenderOptions Class
        
        poIResultCtrl Class
        
        poIResultMathCtrl Class
        
        poIScalarDefine Class
        
        poIScaleCtrl Class
        
        poISCL Class
        
        poISection Class
        
        poISelectionSet Class
        
        poIStressLinearizationCtrl Class
        
        poISubcase Class
        
        poISweepCtrl Class
        
        poISymmetry Class
        
        poISystem Class
        
        poISystemCtrl Class
        
        poITensorCtrl Class
        
        poITensorDefine Class
        
        poITextAttribute Class
        
        poITracingCtrl Class
        
        poITrackingSystem Class
        
        poIVectorCtrl Class
        
        poIVectorDefine Class
      - HyperGraph 2D
      - HyperGraph 3D
      - MediaView
      - TextView
      - HgTrans
      - TableView
  - 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.
  - HyperWorks Record and Playback
    Record playback workflows in HyperView.
- HyperWorks Report
- HyperMesh
- MotionView
- Templex and Math Reference Guide
- Script Exchange
  The Script Exchange is a database of freely accessible scripts posted by users and Altair engineers.

View All Altair HyperWorks Help

HyperWorks Desktop

2021

Home
HyperWorks Desktop Reference Guides
Overview of external readers and the Altair Binary Format, the generic ASCII reader, running HyperWorks in batch mode, using Tcl/Tk commands, translators, and result math.
HyperWorks Desktop
Tcl/Tk Commands
The HyperWorks Desktop 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 HyperWorks Desktop applications.
HyperView
poIModel Class

What's New
Get Started
Tutorials
Startup Procedures and Customizations
Manage Files and Data
Display Controls
Session Navigation
Publish Sessions
Parameterize Report Templates
Workflow Automation
HyperWorks Collaboration Tools
HyperWorks Desktop Reference Guides

poIModel Class

Note: See the Model topic/subtopics in the HyperView User's Guide for additional information.

poIModel AddAssembly
Adds a new assembly.
poIModel AddExplosion
Adds a new explosion to the current model.
poIModel AddPart
Creates a part from the given part reference parented by the given assembly locator string.
poIModel AddSelectionSet
Creates a new selection set on the current model.
poIModel AddTrackingSystem
Creates a tracking system and assigns a name.
poIModel AddUserDefinedSystem
Adds a new coordinate system to the current model.
poIModel ApplyDefaults
Sets component material to default values. Calling this command on an assembly has no affect.
poIModel ApplyStyleTo
Applies the style of the current model to another model on the current page, or on a different page in the session.
poIModel ChangeSelectionSetType
Changes the type of the current selection set with respect to the selection set entity binding.
poIModel DefineAssembly
Defines an assembly in a model.
poIModel GetActiveExplosion
Gets the ID of the active explosion.
poIModel GetActiveTrackingSystem
Gets the active tracking system ID.
poIModel GetAssemblyHandle
Gets an assembly handle for the given assembly locator string.
poIModel GetAssemblyID
Gets the parent assembly's ID.
poIModel GetBoundingBox
Returns the bounding box coordinates of the model.
poIModel GetChildrenList
Gets the number of child components. For an assembly, only the child parts and assemblies are returned, the IDs of child systems are not returned.
poIModel GetColor
Gets the component color index. If this component is an assembly, the returned color will always be the first one listed in the color table.
poIModel GetColorMode
Gets the current color mode for the model.
poIModel GetColorModeList
Gets the list of available color modes.
poIModel GetComponentHandle
Gets a handle to the given component by ID.
poIModel GetComponentID
Gets the component ID.
poIModel GetDisplayMode
Gets the component display option setting. If this component is an assembly, true will indicate that one or more child parts have the display mode set.
poIModel GetDisplayModeList
Gets the list of component display modes.
poIModel GetEntityCount
Gets the number of entities of a particular pool type and optionally, the pool label.
poIModel GetEntityInfo
Returns the property information for a given entity.
poIModel GetEntityList
Gets the list of entity IDs in a given pool.
poIModel GetExplosionList
Gets a list of explosion IDs.
poIModel GetFileName
Gets the model file name.
poIModel GetGlobalPropertyList
Gets the global property list.
poIModel GetID
Gets the model ID.
poIModel GetLabel
Gets the label ID.
poIModel GetMaskedElements
Populates the given set with the currently masked elements.
poIModel GetMaterial
Gets the component material ID (zero if none assigned). If this is an assembly, -1 is always returned.
poIModel GetMeshMode
Gets the component's mesh mode. If this is an assembly, ALL child parts must be set to the same mesh mode, otherwise the returned mode will be "none".
poIModel GetNumberOfChildren
Gets the number of child components.
poIModel GetNumberOfComponents
Gets the number of components in this model.
poIModel GetNumberOfElements
Gets the number of elements in this model.
poIModel GetNumberOfNodes
Gets the number of nodes in this model.
poIModel GetNumberOfParts
Gets the number of parts in this model.
poIModel GetNumberOfSystems
Gets the number of systems in the model.
poIModel GetPartAssemblyHandle
Gets a handle to the given part assembly by ID.
poIModel GetPartAssemblyList
Gets the list of part assembly IDs in the model.
poIModel GetPartHandle
Gets a handle to the given part by ID.
poIModel GetPolygonMode
Gets the component's polygon mode. If this is an assembly, ALL child parts must have the same polygon mode set, otherwise the returned mode will be "none".
poIModel GetPoolList
Gets the list of pools for the particular type in this model.
poIModel GetPoolTypeList
Gets the type of pools available in this model.
poIModel GetQueryCtrlHandle
Gets a handle to the query control object.
poIModel GetReaderName
Gets the model reader name.
poIModel GetResultCtrlHandle
Gets a handle to the result control object.
poIModel GetReaderPropertyList
Returns the reader options which were used to read the model data.
poIModel GetResultFileName
Gets the attached result file name.
poIModel GetResultList
Gets the list of loaded result IDs.
poIModel GetResultReaderName
Gets the result reader name.
poIModel GetResultReaderPropertyList
Returns the reader options which were used to read the result data.
poIModel GetSelectionSetHandle
Retrieves the handle for a particular selection set.
poIModel GetSelectionSetList
This command retrieves a list of all selection set IDs on the current model.
poIModel GetStyleList
Gets a list of styles that can be applied to other models.
poIModel GetSyncBlockID
Gets the model sync block ID.
poIModel GetSystemGroupList
Gets the list of coordinate system groups (analogous to the HyperMesh system collectors).
poIModel GetSystemHandle
Gets the coordinate system handle by ID.
poIModel GetSystemList
Gets a list of coordinate systems for the given group ID.
poIModel GetTracingCtrlHandle
Gets the tracing control.
poIModel GetTracingMode
Gets the component's tracing mode. If this is an assembly mode, "ff" is always returned.
poIModel GetTrackingSystemDisplayMode
Gets the tracking system's drawing mode.
poIModel GetTrackingSystemHandle
Gets a handle to the given tracking system by ID.
poIModel GetTrackingSystemList
Gets a list of tracking system IDs.
poIModel GetTranslation
Gets the translation vector in the global coordinate system. If this component is an assembly, a zero translation will always be returned.
poIModel GetType
Gets the component's type string.
poIModel GetUserDefinedSystemHandle
Gets a handle for the user-defined system as specified by the ID string.
poIModel GetUserDefinedSystemList
Gets a list containing all of the user-defined systems present in the current model.
poIModel GetUserDefinedSystemTypeList
Gets a list containing all of the possible types of user-defined systems which can be created.
poIModel GetVisibility
Gets the model's visibility state.
poIModel GetVisibleNodesCoordinatesList
Gets the coordinates of the currently visible nodes for the part (part_locator). If for example there is an active 0 width cross section, only the nodes on the cut will be returned (the same will be true for ISO sections). Node positions will be listed only once.
poIModel GetZViewableCount
Returns the number of entities in the selection set which are visible in the current view orientation.
poIModel Mask
Masks the contents of a selection set.
poIModel MaskAll
Masks all parts or systems.
poIModel MaskOffScreen
Masks off screen elements.
poIModel RemoveAssembly
Removes an assembly from the model.
poIModel RemoveExplosion
Removes the given explosion by ID.
poIModel RemovePart
Removes the given part reference from its parent.
poIModel RemoveResult
Removes a result from the model.
poIModel RemoveSelectionSet
Removes a selection set on the current model.
poIModel RemoveTrackingSystem
Removes the given tracking system by ID.
poIModel RemoveUserDefinedSystem
Removes a user-defined system from the current model.
poIModel ReverseMask
Reverses the visibility on elements and systems.
poIModel SetActiveExplosion
Sets the active explosion by ID.
poIModel SetActiveTrackingSystem
Sets the active tracking system by ID.
poIModel SetApproximationError
Sets the model's approximation error.
poIModel SetAssemblyID
Sets the parent to the assembly identified by assy_id. This will always fail. You cannot change the model's parent.
poIModel SetAttribute
Enables or disables the selection set identified by the set_id.
poIModel SetColor
Sets the component's color index. This command will be invalid if it is called on a component that is an assembly, doing so will have no affect, and a warning will be returned.
poIModel SetColorMode
Sets the current color mode for the model.
poIModel SetDisplayMode
Sets the component display option setting. If this component is an assembly, all the child parts will be set to this state.
poIModel SetLabel
Sets the model label.
poIModel SetMaterial
Sets the component material index. Calling this command on an assembly has no affect.
poIModel SetMeshMode
Sets the component's mesh mode. If this is an assembly, ALL child parts are set to the specified mesh mode.
poIModel SetPolygonMode
Sets the component's polygon mode. If this is an assembly, ALL child parts are set to the specified polygon mode.
poIModel SetResult
Attaches the given result file to the model.
poIModel SetSync
Sets the model sync value.
poIModel SetTracingMode
Sets the component's tracing mode. This command has no affect on an assembly.
poIModel SetTrackingSystemDisplayMode
Sets the tracking system drawing mode.
poIModel SetTranslation
Sets the translation vector in the global coordinate system. If this component is an assembly, a zero translation will always be returned. Translating/exploding the root level (model) assembly is an invalid operation. The translation will be put into a TRANSLATION mode explosion.
poIModel SetVisibility
Sets the model's visibility state (doesn't affect part/element visibility).
poIModel UnMask
Unmasks the contents of a selection set.
poIModel UnMaskAll
Unmasks all elements.
poIModel UnMaskOnScreen
Unmasks screen elements.

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