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  3. FBaseDynamicMeshSelector

FBaseDynamicMeshSelector

[FBaseDynamicMeshSelector](API\Plugins\ModelingComponents\FBaseDynamicMeshSelector) is an implementation of [IGeometrySelector](API\Plugins\ModelingComponents\IGeometrySelector) for a [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh).

API > API/Plugins > API/Plugins/ModelingComponents

FBaseDynamicMeshSelector is an implementation of IGeometrySelector for a UDynamicMesh. Note that the Selector itself does not require that the target object be a UDynamicMeshComponent, and subclasses of FBaseDynamicMeshSelector are used for both Volumes and StaticMeshComponents. Access to the World transform is provided by a TUniqueFunction set up in the Factory.

   
Name FBaseDynamicMeshSelector
Type class
Header File /Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Selection/DynamicMeshSelector.h
Include Path #include "Selection/DynamicMeshSelector.h"

Syntax

class FBaseDynamicMeshSelector : public IGeometrySelector

Implements Interfaces

Derived Classes

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FBaseDynamicMeshSelector()

   Selection/DynamicMeshSelector.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

UDynamicMesh * GetDynamicMesh()

 These need to be public for the Transformers...can we do it another way? Selection/DynamicMeshSelector.h  

const UE::Geometry::FGroupTopology * GetGroupTopology()

   Selection/DynamicMeshSelector.h  

virtual FGeometryIdentifier GetSourceGeometryIdentifier()

   Selection/DynamicMeshSelector.h  

virtual void Initialize ( FGeometryIdentifier SourceGeometryIdentifier,
UDynamicMesh* TargetMesh,
TUniqueFunction< UE::Geometry::FTransformSRT3d()> GetWorldTransformFunc
)

 Initialize the FBaseDynamicMeshSelector for a given source/target UDynamicMesh. Selection/DynamicMeshSelector.h  

virtual void UpdateAfterGeometryEdit ( IToolsContextTransactionsAPI* TransactionsAPI,
bool bInTransaction,
TUniquePtr< UE::Geometry::FDynamicMeshChange > DynamicMeshChange,
FText GeometryEditTransactionString
)

 UpdateAfterGeometryEdit should be called after editing the UDynamicMesh owned by the Selector (TargetMesh). Selection/DynamicMeshSelector.h  

Overridden from IGeometrySelector

Name Remarks Include Path Unreal Specifiers

virtual void AccumulateElementsFromPredicate ( FGeometrySelectionElements& ElementsInOut,
bool bTransformToWorld,
bool bIsForPreview,
bool bUseGroupTopology,
TFunctionRef< bool(UE::Geometry::EGeometryElementType, UE::Geometry::FGeoSelectionID)> Predicate
)

 Accumulate all geometric elements (currently 3D triangles, line segments, and points) in the provided ElementsInOut by initializing vertex, edge, and face selections using the provided predicate and then accumulating elements for those selections. Selection/DynamicMeshSelector.h  

virtual void AccumulateSelectionBounds ( const FGeometrySelection& Selection,
FGeometrySelectionBounds& BoundsInOut,
bool bTransformToWorld
)

 Accumulate the bounds of the provided Selection in the provided BoundsInOut. Selection/DynamicMeshSelector.h  

virtual Please use the function of the same name which takes EEnumerateSelectionMapping flags virtual instead void AccumulateSelectionElements ( const FGeometrySelection& Selection,
FGeometrySelectionElements& Elements,
bool bTransformToWorld,
bool bIsForPreview
)

   Selection/DynamicMeshSelector.h  

virtual void AccumulateSelectionElements ( const FGeometrySelection& Selection,
FGeometrySelectionElements& Elements,
bool bTransformToWorld,
UE::Geometry::EEnumerateSelectionMapping Flags
)

 Prefer AccumulateSelectionElements with Flags parameter. Selection/DynamicMeshSelector.h  

virtual FGeometryIdentifier GetIdentifier()

   Selection/DynamicMeshSelector.h  

virtual FTransform GetLocalToWorldTransform()

   Selection/DynamicMeshSelector.h  

virtual void GetSelectionFrame ( const FGeometrySelection& Selection,
UE::Geometry::FFrame3d& SelectionFrameOut,
bool bTransformToWorld
)

 Compute a 3D frame for the provided Selection. Selection/DynamicMeshSelector.h  

virtual void GetSelectionPreviewForRaycast ( const FWorldRayQueryInfo& RayInfo,
FGeometrySelectionEditor& PreviewEditor
)

 Query the Selector for a potential selection based on world-space Ray. Selection/DynamicMeshSelector.h  

virtual void GetTargetFrame ( const FGeometrySelection& Selection,
UE::Geometry::FFrame3d& SelectionFrameOut
)

 Compute a 3D frame for the Selector's target object Selection/DynamicMeshSelector.h  

virtual void InitializeSelectionFromPredicate ( FGeometrySelection& SelectionInOut,
TFunctionRef< bool(UE::Geometry::FGeoSelectionID)> SelectionIDPredicate,
EInitializeSelectionMode InitializeMode,
const FGeometrySelection* ReferenceSelection
)

 Populate a Selection using the provided ReferenceMode, with a Predicate and optional ReferenceSelection. Selection/DynamicMeshSelector.h  

virtual bool RayHitTest ( const FWorldRayQueryInfo& RayInfo,
UE::Geometry::FGeometrySelectionHitQueryConfig QueryConfig,
FInputRayHit& HitResultOut
)

 Check for intersection between a world-space Ray with the Selector's target object and return a FInputRayHit result. Selection/DynamicMeshSelector.h  

virtual bool Restore()

 Restore a Selector that has had Sleep() called on it. Selection/DynamicMeshSelector.h  

virtual void Shutdown()

 IGeometrySelector API implementation Selection/DynamicMeshSelector.h  

virtual bool Sleep ()

 Temporarily disable the Selector, with the intention of re-enabling it (via Restore()) in the future. Selection/DynamicMeshSelector.h  

virtual bool SupportsSleep()

 The SelectionManager will call SupportsSleep() to determine if an IGeometrySelector needs to be destroyed when the target object is deselected, or if it can be re-used (generally more efficient) Selection/DynamicMeshSelector.h  

virtual void UpdateSelectionFromSelection ( const FGeometrySelection& FromSelection,
bool bAllowConversion,
FGeometrySelectionEditor& SelectionEditor,
const FGeometrySelectionUpdateConfig& UpdateConfig,
UE::Geometry::FGeometrySelectionDelta* SelectionDelta
)

 Combine FromSelection with the current Selection owned/referenced by the Selector, using the provided SelectionEditor and UpdateConfig. Selection/DynamicMeshSelector.h  

virtual void UpdateSelectionViaRaycast ( const FWorldRayQueryInfo& RayInfo,
FGeometrySelectionEditor& SelectionEditor,
const FGeometrySelectionUpdateConfig& UpdateConfig,
FGeometrySelectionUpdateResult& ResultOut
)

 Update the active selection based on a world-space Ray. Selection/DynamicMeshSelector.h  

virtual void UpdateSelectionViaShape ( const FWorldShapeQueryInfo& ShapeInfo,
FGeometrySelectionEditor& SelectionEditor,
const FGeometrySelectionUpdateConfig& UpdateConfig,
FGeometrySelectionUpdateResult& ResultOut
)

 Update the active selection based on a world-space Shape. Selection/DynamicMeshSelector.h  

Protected

Name Remarks Include Path Unreal Specifiers

const UE::Geometry::FColliderMesh * GetColliderMesh()

   Selection/DynamicMeshSelector.h  

const UE::Geometry::FSegmentTree3 * GetGroupEdgeSpatial()

   Selection/DynamicMeshSelector.h  

void InvalidateOnMeshChange ( FDynamicMeshChangeInfo ChangeInfo
)

   Selection/DynamicMeshSelector.h  

void RegisterMeshChangedHandler()

   Selection/DynamicMeshSelector.h  

void UpdateColliderMesh()

   Selection/DynamicMeshSelector.h  

void UpdateGroupEdgeSegmentTree()

   Selection/DynamicMeshSelector.h  

void UpdateGroupTopology()

   Selection/DynamicMeshSelector.h  

virtual void UpdateSelectionViaRaycast_GroupEdges ( const FWorldRayQueryInfo& RayInfo,
FGeometrySelectionEditor& SelectionEditor,
const FGeometrySelectionUpdateConfig& UpdateConfig,
FGeometrySelectionUpdateResult& ResultOut
)

   Selection/DynamicMeshSelector.h  

virtual void UpdateSelectionViaRaycast_MeshTopology ( const FWorldRayQueryInfo& RayInfo,
FGeometrySelectionEditor& SelectionEditor,
const FGeometrySelectionUpdateConfig& UpdateConfig,
FGeometrySelectionUpdateResult& ResultOut
)

   Selection/DynamicMeshSelector.h  

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