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  3. UMeshSelectionTool

UMeshSelectionTool

API > API/Plugins > API/Plugins/MeshModelingToolsExp

Inheritance Hierarchy

References

   
Module MeshModelingToolsExp
Header /Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/MeshSelectionTool.h
Include #include "MeshSelectionTool.h"

Syntax

UCLASS&40;&41;  
class UMeshSelectionTool :  
    public UDynamicMeshBrushTool,  
    public IInteractiveToolNestedAcceptCancelAPI

Variables

  Type Name Description
Protected variable TSharedPtr< UE::Geometry::FPolygroupSet, ESPMode::ThreadSafe > ActiveGroupSet  
Protected variable FMeshSelectionChangeBuilder * ActiveSelectionChange Selection change
Protected variable bool bColorsUpdatePending  
Protected variable bool bFullMeshInvalidationPending  
Protected variable bool bHaveModifiedMesh If true, mesh has been edited
Protected variable bool bHavePendingAction  
Protected variable bool bInRemoveStroke  
Protected variable bool bOctreeValid  
Protected variable bool bStampPending  
Public variable UProperty TObjectPtr< UMeshSelectionToolActionPropertySet > EditActions  
Protected variable TArray< int > IndexBuf Temp
Protected variable UE::Geometry::FGeometrySelection InputGeometrySelection  
Protected variable FBrushStampData LastStamp  
Public variable UProperty TObjectPtr< UMeshElementsVisualizer > MeshElementsDisplay  
Public variable UProperty TObjectPtr< UMeshStatisticsProperties > MeshStatisticsProperties  
Protected variable TUniquePtr< UE::Geometry::FDynamicMeshOctree3 > Octree Note: ideally this octree would be part of PreviewMesh!
Protected variable EMeshSelectionToolActions PendingAction  
Public variable UProperty TObjectPtr< UPolygroupLayersProperties > PolygroupLayerProperties  
Protected variable TArray< int > PreviewBrushROI  
Protected variable TBitArray SelectedTriangles  
Protected variable TBitArray SelectedVertices  
Protected variable UProperty TObjectPtr< UMeshSelectionSet > Selection  
Public variable UProperty TObjectPtr< UMeshSelectionEditActions > SelectionActions  
Public variable UProperty TObjectPtr< UMeshSelectionToolProperties > SelectionProps  
Protected variable EMeshSelectionElementType SelectionType  
Protected variable UProperty TArray< TObjectPtr< AActor > > SpawnedActors  
Protected variable FBrushStampData StartStamp  
Protected variable UWorld * TargetWorld  
Protected variable TArray< int32 > TemporaryBuffer  
Protected variable TSet< int32 > TemporarySet  
Protected variable TArray< int > TriangleToUVIsland  
Public variable UProperty TObjectPtr< UMeshUVChannelProperties > UVChannelProperties  

Constructors

  Type Name Description
Public function    

Functions

  Type Name Description
Protected function Virtual void  
Protected function Virtual void  
Protected function Virtual void

ApplyShutdownAction ( EToolShutdownType ShutdownType
)

  
Protected function Virtual void

ApplyStamp ( const FBrushStampData& Stamp
)

  
Protected function void  
Protected function void

BeginChange ( bool bAdding
)

  
Protected function void  
Protected function void

CalculateTriangleROI ( const FBrushStampData& Stamp,
TArray< int >& TriangleROI
)

  
Protected function void

CalculateVertexROI ( const FBrushStampData& Stamp,
TArray< int >& VertexROI
)

  
Protected function void  
Protected function void  
Protected function Virtual UMeshSelectionToolActionPropertySet *  
Protected function void  
Protected function void  
Protected function TUniquePtr< FToolCommandChange >  
Protected function void  
Protected function void  
Protected function FColor

GetCurrentFaceColor ( const FDynamicMesh3* Mesh,
int TriangleID
)

  
Protected function TUniquePtr< UE::Geometry::FDynamicMeshOctree3 > &  
Protected function void

GrowShrinkSelection ( bool bGrow
)

  
Protected function void  
Protected function void  
Protected function void  
Protected function void

OnRegionHighlightUpdated ( const TArray< int32 >& Triangles
)

  
Protected function void

OnRegionHighlightUpdated ( const TSet< int32 >& Triangles
)

  
Protected function void  
Protected function void  
Public function Virtual void  
Protected function void  
Protected function void  
Protected function void

SelectLargestComponent ( bool bWeightByArea
)

  
Protected function void

SeparateSelectedTriangles ( bool bDeleteSelected
)

  
Public function Virtual void Input selection support
Public function Virtual void

SetWorld ( UWorld* World
)

  
Protected function void  
Protected function void  
Protected function void

UpdateFaceSelection ( const FBrushStampData& Stamp,
const TArray< int >& BrushROI
)

  
Protected function void

UpdateVisualization ( bool bSelectionModified
)

  

Overridden from UDynamicMeshBrushTool

  Type Name Description
Protected function Virtual void

OnShutdown ( EToolShutdownType ShutdownType
)

 Subclasses can override these to customize behavior

Overridden from UMeshSurfacePointTool

  Type Name Description
Public function Virtual bool

HitTest ( const FRay& Ray,
FHitResult& OutHit
)

  
Public function Virtual void

OnBeginDrag ( const FRay& Ray
)

 UMeshSurfacePointTool implementation.
Public function Virtual void

OnEndDrag ( const FRay& Ray
)

 This function is called when the user releases the button driving a click-drag-release interaction
Public function Virtual void

OnUpdateDrag ( const FRay& Ray
)

 This function is called each frame that the user is in a click-drag-release interaction

Overridden from UInteractiveTool

  Type Name Description
Public function Virtual Const bool Virtual bool CanAccept() const override { return Super::CanAccept() && bHaveModifiedMesh; }
Public function Virtual Const bool  
Public function Virtual Const bool  
Public function Virtual void

OnTick ( float DeltaTime
)

 Allow the Tool to do any necessary processing on Tick
Public function Virtual void Override this function to register the set of Actions this Tool supports, using FInteractiveToolActionSet::RegisterAction.
Public function Virtual void Allow the Tool to do any custom drawing (ie via PDI/RHI)
Public function Virtual void

Setup ()

 UInteractiveTool.

Overridden from IInteractiveToolCameraFocusAPI

  Type Name Description
Public function Virtual FBox IInteractiveToolCameraFocusAPI implementation.

Overridden from IHoverBehaviorTarget

  Type Name Description
Public function Virtual bool

OnUpdateHover ( const FInputDeviceRay& DevicePos
)

 Update active hover sequence with new input position

Overridden from IInteractiveToolNestedAcceptCancelAPI

  Type Name Description
Public function Virtual bool  
Public function Virtual bool Called by Editor levels to tell the implementor (eg Tool) to execute a nested Cancel action
Public function Virtual bool IInteractiveToolCancelAPI.

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