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  3. FLinearExtrusionOp

FLinearExtrusionOp

LinearExtrusionOp extrudes a set of triangles of a mesh in a linear direction, with various options for how to process that extrusion.

API > API/Plugins > API/Plugins/ModelingOperators

LinearExtrusionOp extrudes a set of triangles of a mesh in a linear direction, with various options for how to process that extrusion.

   
Name FLinearExtrusionOp
Type class
Header File /Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingOperators/Public/PolyModelingOps/LinearExtrusionOp.h
Include Path #include "PolyModelingOps/LinearExtrusionOp.h"

Syntax

class FLinearExtrusionOp : public UE::Geometry::FDynamicMeshOperator

Inheritance Hierarchy

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FLinearExtrusionOp()

   PolyModelingOps/LinearExtrusionOp.h  

Enums

Public

Name Remarks
ESelectionShapeModifierMode Parameters Modifier applied to the selected triangles during extrusion

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
bInferGroupsFromNeighbours bool Assign new groups to regions of the extrusion "tube" based on the existing adjacent groups before extrusion. PolyModelingOps/LinearExtrusionOp.h  
bInferMaterialID bool If true, Material IDs around the border of the extrude area are propagated "down" the extrusion tube PolyModelingOps/LinearExtrusionOp.h  
bNewGroupPerSubdivision bool If true, assign a separate group for each subdivision, otherwise all subdivisions have the same group PolyModelingOps/LinearExtrusionOp.h  
bRecomputeNormals bool Determine whether normals should be recomputed PolyModelingOps/LinearExtrusionOp.h  
bRemapExtrudeGroups bool Assign new GroupIDs to each input GroupID in the extrude area. PolyModelingOps/LinearExtrusionOp.h  
bShellsToSolids bool If bShellsToSolids is true, patches surrounded by mesh boundaries will be extruded into closed solids instead of open shells PolyModelingOps/LinearExtrusionOp.h  
bUseColinearityForSettingBorderGroups bool (this parameter may not be relevant and perhaps should be removed...) Used when setting groups for the sides when the extrusion includes a mesh border. PolyModelingOps/LinearExtrusionOp.h  
bUVIslandPerGroup bool If true, assign a new UV island for each new group, otherwise each disconnected extrusion tube is unwrapped to a single UV island PolyModelingOps/LinearExtrusionOp.h  
CreaseAngleThresholdDeg double If the opening angle at an edge of the extrusion tube is > this threshold, "cut" any group that crosses the edge into two groups PolyModelingOps/LinearExtrusionOp.h  
NumSubdivisions int32 Number of subdivisions along the extrusion "tubes" PolyModelingOps/LinearExtrusionOp.h  
OriginalMeshShared TSharedPtr< FSharedConstDynamicMesh3 > Inputs Handle to the source DynamicMesh PolyModelingOps/LinearExtrusionOp.h  
RaycastMaxDistance double In RaycastToPlane mode, if raycast distance is > this value, fallback to no shape change PolyModelingOps/LinearExtrusionOp.h  
RegionModifierMode ESelectionShapeModifierMode Current modifier applied to selection region PolyModelingOps/LinearExtrusionOp.h  
Scale FVector3d End scale of the Extrusion, relative to initial scale (1,1,1) PolyModelingOps/LinearExtrusionOp.h  
SetMaterialID int Constant Material ID to set along the extrusion tube PolyModelingOps/LinearExtrusionOp.h  
StartFrame FFrame3d Initial frame of the Extrusion PolyModelingOps/LinearExtrusionOp.h  
ToFrame FFrame3d End frame of the Extrusion PolyModelingOps/LinearExtrusionOp.h  
TriangleSelection TArray< int32 > Triangles of the OriginalMesh that should be extruded PolyModelingOps/LinearExtrusionOp.h  
UVScaleFactor double Scaling applied to the default UV values PolyModelingOps/LinearExtrusionOp.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

virtual bool CalculateResultInPlace ( FDynamicMesh3& EditMesh,
FProgressCancel* Progress
)

 Outputs Compute result applied directly to EditMesh PolyModelingOps/LinearExtrusionOp.h  

Overridden from FDynamicMeshOperator

Name Remarks Include Path Unreal Specifiers

virtual void CalculateResult ( FProgressCancel* Progress
)

 Calculate the result of the operator. This will populate the internal Mesh and Transform. PolyModelingOps/LinearExtrusionOp.h  

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