1. Epic GamesDeveloper
  3. UPolyEditInsertEdgeLoopActivity

UPolyEditInsertEdgeLoopActivity

Interactive activity for inserting (group) edge loops into a mesh.

API > API/Plugins > API/Plugins/MeshModelingTools > API/Plugins/MeshModelingTools/ToolActivities

Inheritance Hierarchy

References

   
Module MeshModelingTools
Header /Engine/Plugins/Runtime/MeshModelingToolset/Source/MeshModelingTools/Public/ToolActivities/PolyEditInsertEdgeLoopActivity.h
Include #include "ToolActivities/PolyEditInsertEdgeLoopActivity.h"

Syntax

UCLASS&40;&41;  
class UPolyEditInsertEdgeLoopActivity :  
    public UInteractiveToolActivity,  
    public UE::Geometry::IDynamicMeshOperatorFactory,  
    public IHoverBehaviorTarget,  
    public IClickBehaviorTarget

Remarks

Interactive activity for inserting (group) edge loops into a mesh.

Variables

  Type Name Description
Protected variable UProperty TObjectPtr< UPolyEditActivityContext > ActivityContext  
Protected variable bool bIsRunning  
Protected variable bool bLastComputeSucceeded Copied over on op completion.
Protected variable bool bWaitingForInsertionCompletion On valid clicks, we wait to finish the background op and apply it before taking more input.
Protected variable FViewCameraState CameraState  
Protected variable TSharedPtr< const UE::Geometry::FDynamicMesh3, ESPMode::ThreadSafe > ComputeStartMesh Safe inputs for the background compute to use, untouched by undo/redo/other CurrentMesh updates.
Protected variable TSharedPtr< const UE::Geometry::FGroupTopology, ESPMode::ThreadSafe > ComputeStartTopology  
Protected variable int32 InputGroupEdgeID Taken from user interaction, read as inputs by the op factory.
Protected variable double InteractiveInputLength  
Protected variable TSharedPtr< TSet< int32 >, ESPMode::ThreadSafe > LatestOpChangedTids  
Protected variable TSharedPtr< UE::Geometry::FGroupTopology, ESPMode::ThreadSafe > LatestOpTopologyResult  
Protected variable FToolDataVisualizer PreviewEdgeRenderer  
Protected variable TArray< TPair< FVector3d, FVector3d > > PreviewEdges  
Protected variable TArray< TPair< FVector3d, FVector3d > > ProblemTopologyEdges Used to highlight problematic topology (non-quad groups) when it stops a loop.
Protected variable FToolDataVisualizer ProblemTopologyRenderer  
Protected variable TArray< FVector3d > ProblemTopologyVerts  
Protected variable float ProblemVertTickWidth  
Protected variable UProperty TObjectPtr< UEdgeLoopInsertionProperties > Settings  
Protected variable FTransform TargetTransform  
Protected variable TSharedPtr< FMeshTopologySelector, ESPMode::ThreadSafe > TopologySelector  
Protected variable FMeshTopologySelector::FSelectionSettings TopologySelectorSettings  

Constructors

  Type Name Description
Public function    

Functions

  Type Name Description
Protected function void  
Protected function void

ConditionallyUpdatePreview ( int32 NewGroupID,
double* NewInputLength
)

 Update the preview unless we've already computed one with the same parameters (such as when using "even" or non-interactive parameter setting)
Protected function FInputRayHit

HitTest ( const FRay& WorldRay
)

  
Public function Virtual void

OnPropertyModified ( UObject* PropertySet,
FProperty* Property
)

  
Protected function void  
Protected function void  
Protected function bool

UpdateHoveredItem ( const FRay& WorldRay
)

  

Overridden from UInteractiveToolActivity

  Type Name Description
Public function Virtual Const bool If true, calling End with EToolShutdownType::Accept will result in a valid completion of the activity.
Public function Virtual Const bool Check whether a Start() call will result in a success.
Public function Virtual EToolActivityEndResult

End ( EToolShutdownType
)

 Force an end to the activity.
Public function Virtual Const bool Check whether the activity is running (though the tool can just check the result of Start() itself).
Public function Virtual void

Shutdown ( EToolShutdownType ShutdownType
)

 Should be called during a tool's Shutdown()Should be called during a tool's Shutdown()
Public function Virtual EToolActivityStartResult

Start ()

 Attempt to start the activity.

Overridden from UInteractionMechanic

  Type Name Description
Public function Virtual void If the activity is running, should be called from the tool's Render()
Public function Virtual void

Setup ( UInteractiveTool* ParentTool
)

 IInteractiveToolActivity.
Public function Virtual void

Tick ( float DeltaTime
)

 If the activity is running, should be called from the tool's OnTick()

Overridden from IDynamicMeshOperatorFactory

  Type Name Description
Public function Virtual TUniquePtr< UE::Geometry::FDynamicMeshOperator > IDynamicMeshOperatorFactory.

Overridden from IHoverBehaviorTarget

  Type Name Description
Public function Virtual FInputRayHit IHoverBehaviorTarget.
Public function Virtual void

OnBeginHover ( const FInputDeviceRay& DevicePos
)

 Initialize hover sequence at given position
Public function Virtual void Terminate active hover sequence
Public function Virtual bool

OnUpdateHover ( const FInputDeviceRay& DevicePos
)

 Update active hover sequence with new input position

Overridden from IClickBehaviorTarget

  Type Name Description
Public function Virtual FInputRayHit

IsHitByClick ( const FInputDeviceRay& ClickPos
)

 IClickBehaviorTarget.
Public function Virtual void

OnClicked ( const FInputDeviceRay& ClickPos
)

 Notify Target that click ocurred

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page