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  3. UPolyEditPreviewMesh

UPolyEditPreviewMesh

[UPolyEditPreviewMesh](API\Plugins\ModelingComponents\Drawing\UPolyEditPreviewMesh) is a variant of [UPreviewMesh](API\Plugins\ModelingComponents\UPreviewMesh) intended for use as a 'live preview' of a mesh creation/editing operation.

API > API/Plugins > API/Plugins/ModelingComponents > API/Plugins/ModelingComponents/Drawing

Inheritance Hierarchy

References

   
Module ModelingComponents
Header /Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Drawing/PolyEditPreviewMesh.h
Include #include "Drawing/PolyEditPreviewMesh.h"

Syntax

UCLASS (Transient)  
class UPolyEditPreviewMesh : public UPreviewMesh

Remarks

UPolyEditPreviewMesh is a variant of UPreviewMesh intended for use as a 'live preview' of a mesh creation/editing operation. The class supports initializing the preview mesh in various ways, generally as a submesh of a base mesh.

Variables

  Type Name Description
Protected variable TUniquePtr< UE::Geometry::FDynamicSubmesh3 > ActiveSubmesh  
Protected variable bool bHaveMeshTransform  
Protected variable TArray< int32 > EditVertices  
Protected variable TMap< int32, int32 > ExtrudeToInitialVerts  
Protected variable FDynamicMesh3 InitialEditPatch  
Protected variable TArray< FVector3d > InitialNormals  
Protected variable TArray< FVector3d > InitialPositions  
Protected variable TArray< FVector3d > InitialTriNormals  
Protected variable FVector3d InputDirection  
Protected variable FTransform3d MeshTransform  

Functions

  Type Name Description
Public function void

ApplyTranslationToPreview ( const FTransform& TransformIn,
FTransform& TranslationOut,
FTransform& RotateScaleOut
)

  
Public function void

InitializeExtrudeType ( FDynamicMesh3&& BaseMesh,
const FVector3d& TransformedOffsetDirection,
const FTransform3d* MeshTransform,
bool bDeleteExtrudeBaseFaces
)

  
Public function void

InitializeExtrudeType ( const FDynamicMesh3* SourceMesh,
const TArray< int32 >& Triangles,
const FVector3d& TransformedOffsetDirection,
const FTransform3d* MeshTransform,
bool bDeleteExtrudeBaseFaces
)

 "Extrude Type" duplicates the input faces, offsets them using FExtrudeMesh, and stitches them together
Public function void

InitializeInsetType ( const FDynamicMesh3* SourceMesh,
const TArray< int32 >& Triangles,
const FTransform3d* MeshTransform
)

 "Inset Type" duplicates the input faces and insets them using FInsetMeshRegion
Public function void

InitializeStaticType ( const FDynamicMesh3* SourceMesh,
const TArray< int32 >& Triangles,
const FTransform3d* MeshTransform
)

 "Static Type" is just a static mesh
Public function void

MakeExtrudeTypeHitTargetMesh ( FDynamicMesh3& TargetMesh,
bool bUseNormalDirection
)

 Make a hit-target mesh that is an infinite extrusion along extrude direction.
Public function void  
Public function void  
Public function void

UpdateExtrudeType ( double NewOffset,
bool bUseNormalDirection
)

 Update extrude-type preview mesh by moving existing offset vertices
Public function void

UpdateExtrudeType ( TFunctionRef< void(FDynamicMesh3&)> UpdateMeshFunc,
bool bFullRecalculate
)

 Update extrude-type preview mesh using external function.
Public function void

UpdateExtrudeType_FaceNormalAvg ( double NewOffset
)

 Update extrude-type preview mesh by moving existing offset vertices along their connected triangle normals and then averaging positions
Public function void

UpdateInsetType ( double NewOffset,
bool bReproject,
double Softness,
double AreaScaleT,
bool bBoundaryOnly
)

  
Public function void

UpdateStaticType ( TFunctionRef< void(FDynamicMesh3&)> UpdateMeshFunc,
bool bFullRecalculate
)

  

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