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UMeshSelectionTool

Windows

MacOS

Linux

Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UInteractiveTool

USingleSelectionTool

UMeshSurfacePointTool

UBaseBrushTool

UDynamicMeshBrushTool

UMeshSelectionTool

UEditMeshMaterialsTool

References

Module	MeshModelingTools
Header	/Engine/Plugins/Experimental/MeshModelingToolset/Source/MeshModelingTools/Public/MeshSelectionTool.h
Include	#include "MeshSelectionTool.h"

Syntax

[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)()
class UMeshSelectionTool : public UDynamicMeshBrushTool

Variables

	Name	Description
FMeshSelectionC...	ActiveSelectionChange	Selection change
IToolsContextAs...	AssetAPI
bool	bColorsUpdatePending
bool	bFullMeshInvalidationPending
bool	bHaveModifiedMesh	If true, mesh has been edited
bool	bHavePendingAction
bool	bInRemoveStroke
bool	bOctreeValid
bool	bStampPending
TValueWatcher< ...	ColorModeWatcher
UMeshSelectionT...	EditActions
TArray< int >	IndexBuf	Temp
FBrushStampData	LastStamp
TUniquePtr< FDy...	Octree	Note: ideally this octree would be part of PreviewMesh!
EMeshSelectionT...	PendingAction
TArray< int >	PreviewBrushROI
TBitArray	SelectedTriangles
TBitArray	SelectedVertices
UMeshSelectionS...	Selection
UMeshSelectionE...	SelectionActions
UMeshSelectionT...	SelectionProps
EMeshSelectionE...	SelectionType
TValueWatcher< ...	ShowWireframeWatcher
TArray< AActor ...	SpawnedActors
FBrushStampData	StartStamp
UWorld *	TargetWorld
TArray< int32 >	TemporaryBuffer
TSet< int32 >	TemporarySet
TArray< int >	TriangleToUVIsland

Constructors

	Name	Description
	UMeshSelectionTool()

Functions

		Name	Description
	void	AddSubclassPropertySets()
	void	ApplyAction ( EMeshSelectionToolActions ActionTyp... )
	void	ApplyStamp ( const FBrushStampData& Stamp )
	void	AssignNewGroupToSelectedTriangles()
	void	BeginChange ( bool bAdding )
	void	CacheUVIslandIDs()
	void	CalculateTriangleROI ( const FBrushStampData& Stamp, TArray< int >& TriangleROI )
	void	CalculateVertexROI ( const FBrushStampData& Stamp, TArray< int >& VertexROI )
	void	CancelChange()
	void	ClearSelection()
	UMeshSelecti...	CreateEditActions()
	void	DeleteSelectedTriangles()
	void	DisconnectSelectedTriangles()
	TUniquePtr< ...	EndChange()
	void	ExpandToConnected()
	void	FlipSelectedTriangles()
	FColor	GetCurrentFaceColor ( const FDynamicMesh3* Mesh, int TriangleID )
	TUniquePtr< ...	GetOctree()
	void	GrowShrinkSelection ( bool bGrow )
	void	InvertSelection()
	void	OnExternalSelectionChange()
	void	OnSelectionUpdated()
	void	OptimizeSelection()
	void	RequestAction ( EMeshSelectionToolActions ActionTyp... )
	void	SelectAll()
	void	SelectLargestComponent ( bool bWeightByArea )
	void	SeparateSelectedTriangles()
	void	SetAssetAPI ( IToolsContextAssetAPI* AssetAP... )
	void	SetWorld ( UWorld* World )
	void	UpdateFaceSelection ( const FBrushStampData& Stamp, const TArray< int >& BrushROI )
	void	UpdateVisualization ( bool bSelectionModified )

Overridden from UDynamicMeshBrushTool

		Name	Description
	void	OnShutdown ( EToolShutdownType ShutdownType )	Subclasses can override these to customize behavior

Overridden from UMeshSurfacePointTool

	Name	Description
bool	HitTest ( const FRay& Ray, FHitResult& OutHit )
void	OnBeginDrag ( const FRay& Ray )	UMeshSurfacePointTool implementation
void	OnEndDrag ( const FRay& Ray )	This function is called when the user releases the button driving a click-drag-release interaction
void	OnUpdateDrag ( const FRay& Ray )	This function is called each frame that the user is in a click-drag-release interaction

Overridden from UInteractiveTool

	Name	Description
bool	CanAccept()
bool	HasAccept()
bool	HasCancel()
void	RegisterActions ( FInteractiveToolActionSet& ActionS... )	Override this function to register the set of Actions this Tool supports, using FInteractiveToolActionSet::RegisterAction.
void	Render ( IToolsContextRenderAPI* Render... )	Allow the Tool to do any custom drawing (ie via PDI/RHI)
void	Setup()	Register InputBehaviors, etc
void	Tick ( float DeltaTime )	Allow the Tool to do any necessary processing on Tick

Overridden from IHoverBehaviorTarget

		Name	Description
	bool	OnUpdateHover ( const FInputDeviceRay& DevicePos )	Update active hover sequence with new input position

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