Class EditableMesh

Editable Mesh

Inheritance
System.Object
UObject
EditableMesh
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: UE4.EditableMesh
Assembly: UE4DotNet.dll
Syntax
public class EditableMesh : UObject

Properties

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Adapters

Adapters registered with this editable mesh

Declaration
public ObjectArrayField<EditableMeshAdapter> Adapters { get; }
Property Value
Type Description
ObjectArrayField<EditableMeshAdapter>
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DefaultObject

Get UE4 Default Object for this Class

Declaration
public static EditableMesh DefaultObject { get; }
Property Value
Type Description
EditableMesh
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PendingCompactCounter

Counter to determine when we should compact data

Declaration
public int PendingCompactCounter { get; set; }
Property Value
Type Description
System.Int32
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StaticClass

Get UE4 Class

Declaration
public static Class StaticClass { get; }
Property Value
Type Description
Class
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SubdivisionCount

How many levels to subdivide this mesh. Zero will turn off subdivisions

Declaration
public int SubdivisionCount { get; }
Property Value
Type Description
System.Int32
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TextureCoordinateCount

The number of texture coordinates stored on the vertices of this mesh

Declaration
public int TextureCoordinateCount { get; }
Property Value
Type Description
System.Int32

Methods

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AnyChangesToUndo()

@return Returns true if there are any existing tracked changes that can be undo right now

Declaration
public bool AnyChangesToUndo()
Returns
Type Description
System.Boolean
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AssignPolygonsToPolygonGroups(Byte, Boolean)

Assign Polygons to Polygon Groups

Declaration
public void AssignPolygonsToPolygonGroups(byte PolygonGroupForPolygons, bool bDeleteOrphanedPolygonGroups)
Parameters
Type Name Description
System.Byte PolygonGroupForPolygons
System.Boolean bDeleteOrphanedPolygonGroups
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BevelPolygons(Byte, Single, Single)

Bevel Polygons

Declaration
public (IReadOnlyCollection<PolygonID>, IReadOnlyCollection<PolygonID>) BevelPolygons(byte PolygonIDs, float BevelFixedDistance, float BevelProgressTowardCenter)
Parameters
Type Name Description
System.Byte PolygonIDs
System.Single BevelFixedDistance
System.Single BevelProgressTowardCenter
Returns
Type Description
System.ValueTuple<System.Collections.Generic.IReadOnlyCollection<PolygonID>, System.Collections.Generic.IReadOnlyCollection<PolygonID>>
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ChangePolygonsVertexInstances(Byte)

Change Polygons Vertex Instances

Declaration
public void ChangePolygonsVertexInstances(byte VertexInstancesForPolygons)
Parameters
Type Name Description
System.Byte VertexInstancesForPolygons
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Commit()

Commit

Declaration
public void Commit()
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CommitInstance(PrimitiveComponent)

Commit Instance

Declaration
public EditableMesh CommitInstance(PrimitiveComponent ComponentToInstanceTo)
Parameters
Type Name Description
PrimitiveComponent ComponentToInstanceTo
Returns
Type Description
EditableMesh
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ComputeBarycentricWeightForPointOnPolygon(PolygonID, Vector)

Compute Barycentric Weight for Point on Polygon

Declaration
public (MeshTriangle, Vector, bool) ComputeBarycentricWeightForPointOnPolygon(PolygonID PolygonID, Vector PointOnPolygon)
Parameters
Type Name Description
PolygonID PolygonID
Vector PointOnPolygon
Returns
Type Description
System.ValueTuple<MeshTriangle, Vector, System.Boolean>
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ComputeBoundingBox()

Compute Bounding Box

Declaration
public Box ComputeBoundingBox()
Returns
Type Description
Box
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ComputeBoundingBoxAndSphere()

Compute Bounding Box and Sphere

Declaration
public BoxSphereBounds ComputeBoundingBoxAndSphere()
Returns
Type Description
BoxSphereBounds
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ComputePolygonCenter(PolygonID)

Compute Polygon Center

Declaration
public Vector ComputePolygonCenter(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
Vector
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ComputePolygonNormal(PolygonID)

Compute Polygon Normal

Declaration
public Vector ComputePolygonNormal(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
Vector
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ComputePolygonPlane(PolygonID)

Compute Polygon Plane

Declaration
public Plane ComputePolygonPlane(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
Plane
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ComputePolygonsSharedEdges(Byte)

Compute Polygons Shared Edges

Declaration
public IReadOnlyCollection<EdgeID> ComputePolygonsSharedEdges(byte PolygonIDs)
Parameters
Type Name Description
System.Byte PolygonIDs
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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ComputePolygonTriangulation(PolygonID)

Compute Polygon Triangulation

Declaration
public IReadOnlyCollection<MeshTriangle> ComputePolygonTriangulation(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<MeshTriangle>
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CreateEdges(Byte)

Create Edges

Declaration
public IReadOnlyCollection<EdgeID> CreateEdges(byte EdgesToCreate)
Parameters
Type Name Description
System.Byte EdgesToCreate
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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CreateEmptyVertexRange(Int32)

Create Empty Vertex Range

Declaration
public IReadOnlyCollection<VertexID> CreateEmptyVertexRange(int NumVerticesToCreate)
Parameters
Type Name Description
System.Int32 NumVerticesToCreate
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexID>
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CreateMissingPolygonHoleEdges(PolygonID, Int32)

Create Missing Polygon Hole Edges

Declaration
public IReadOnlyCollection<EdgeID> CreateMissingPolygonHoleEdges(PolygonID PolygonID, int HoleNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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CreateMissingPolygonPerimeterEdges(PolygonID)

Create Missing Polygon Perimeter Edges

Declaration
public IReadOnlyCollection<EdgeID> CreateMissingPolygonPerimeterEdges(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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CreatePolygonGroups(Byte)

Create Polygon Groups

Declaration
public IReadOnlyCollection<PolygonGroupID> CreatePolygonGroups(byte PolygonGroupsToCreate)
Parameters
Type Name Description
System.Byte PolygonGroupsToCreate
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonGroupID>
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CreatePolygons(Byte)

Create Polygons

Declaration
public (IReadOnlyCollection<PolygonID>, IReadOnlyCollection<EdgeID>) CreatePolygons(byte PolygonsToCreate)
Parameters
Type Name Description
System.Byte PolygonsToCreate
Returns
Type Description
System.ValueTuple<System.Collections.Generic.IReadOnlyCollection<PolygonID>, System.Collections.Generic.IReadOnlyCollection<EdgeID>>
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CreateVertexInstances(Byte)

Create Vertex Instances

Declaration
public IReadOnlyCollection<VertexInstanceID> CreateVertexInstances(byte VertexInstancesToCreate)
Parameters
Type Name Description
System.Byte VertexInstancesToCreate
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexInstanceID>
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CreateVertices(Byte)

Create Vertices

Declaration
public IReadOnlyCollection<VertexID> CreateVertices(byte VerticesToCreate)
Parameters
Type Name Description
System.Byte VerticesToCreate
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexID>
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DeleteEdgeAndConnectedPolygons(EdgeID, Boolean, Boolean, Boolean, Boolean)

Delete Edge and Connected Polygons

Declaration
public void DeleteEdgeAndConnectedPolygons(EdgeID EdgeID, bool bDeleteOrphanedEdges, bool bDeleteOrphanedVertices, bool bDeleteOrphanedVertexInstances, bool bDeleteEmptyPolygonGroups)
Parameters
Type Name Description
EdgeID EdgeID
System.Boolean bDeleteOrphanedEdges
System.Boolean bDeleteOrphanedVertices
System.Boolean bDeleteOrphanedVertexInstances
System.Boolean bDeleteEmptyPolygonGroups
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DeleteEdges(Byte, Boolean)

Delete Edges

Declaration
public void DeleteEdges(byte EdgeIDsToDelete, bool bDeleteOrphanedVertices)
Parameters
Type Name Description
System.Byte EdgeIDsToDelete
System.Boolean bDeleteOrphanedVertices
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DeleteOrphanVertices(Byte)

Delete Orphan Vertices

Declaration
public void DeleteOrphanVertices(byte VertexIDsToDelete)
Parameters
Type Name Description
System.Byte VertexIDsToDelete
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DeletePolygonGroups(Byte)

Delete Polygon Groups

Declaration
public void DeletePolygonGroups(byte PolygonGroupIDs)
Parameters
Type Name Description
System.Byte PolygonGroupIDs
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DeletePolygons(Byte, Boolean, Boolean, Boolean, Boolean)

Delete Polygons

Declaration
public void DeletePolygons(byte PolygonIDsToDelete, bool bDeleteOrphanedEdges, bool bDeleteOrphanedVertices, bool bDeleteOrphanedVertexInstances, bool bDeleteEmptyPolygonGroups)
Parameters
Type Name Description
System.Byte PolygonIDsToDelete
System.Boolean bDeleteOrphanedEdges
System.Boolean bDeleteOrphanedVertices
System.Boolean bDeleteOrphanedVertexInstances
System.Boolean bDeleteEmptyPolygonGroups
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DeleteVertexAndConnectedEdgesAndPolygons(VertexID, Boolean, Boolean, Boolean, Boolean)

Delete Vertex and Connected Edges and Polygons

Declaration
public void DeleteVertexAndConnectedEdgesAndPolygons(VertexID VertexID, bool bDeleteOrphanedEdges, bool bDeleteOrphanedVertices, bool bDeleteOrphanedVertexInstances, bool bDeleteEmptyPolygonGroups)
Parameters
Type Name Description
VertexID VertexID
System.Boolean bDeleteOrphanedEdges
System.Boolean bDeleteOrphanedVertices
System.Boolean bDeleteOrphanedVertexInstances
System.Boolean bDeleteEmptyPolygonGroups
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DeleteVertexInstances(Byte, Boolean)

Delete Vertex Instances

Declaration
public void DeleteVertexInstances(byte VertexInstanceIDsToDelete, bool bDeleteOrphanedVertices)
Parameters
Type Name Description
System.Byte VertexInstanceIDsToDelete
System.Boolean bDeleteOrphanedVertices
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EndModification(Boolean)

End Modification

Declaration
public void EndModification(bool bFromUndo)
Parameters
Type Name Description
System.Boolean bFromUndo
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ExtendEdges(Byte, Boolean)

Extend Edges

Declaration
public IReadOnlyCollection<EdgeID> ExtendEdges(byte EdgeIDs, bool bWeldNeighbors)
Parameters
Type Name Description
System.Byte EdgeIDs
System.Boolean bWeldNeighbors
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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ExtendVertices(Byte, Boolean, Vector)

Extend Vertices

Declaration
public IReadOnlyCollection<VertexID> ExtendVertices(byte VertexIDs, bool bOnlyExtendClosestEdge, Vector ReferencePosition)
Parameters
Type Name Description
System.Byte VertexIDs
System.Boolean bOnlyExtendClosestEdge
Vector ReferencePosition
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexID>
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ExtrudePolygons(Byte, Single, Boolean)

Extrude Polygons

Declaration
public IReadOnlyCollection<PolygonID> ExtrudePolygons(byte Polygons, float ExtrudeDistance, bool bKeepNeighborsTogether)
Parameters
Type Name Description
System.Byte Polygons
System.Single ExtrudeDistance
System.Boolean bKeepNeighborsTogether
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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FindPolygonHoleEdgeNumberForVertices(PolygonID, Int32, VertexID, VertexID)

Find Polygon Hole Edge Number for Vertices

Declaration
public int FindPolygonHoleEdgeNumberForVertices(PolygonID PolygonID, int HoleNumber, VertexID EdgeVertexID0, VertexID EdgeVertexID1)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
VertexID EdgeVertexID0
VertexID EdgeVertexID1
Returns
Type Description
System.Int32
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FindPolygonHoleVertexNumberForVertex(PolygonID, Int32, VertexID)

Find Polygon Hole Vertex Number for Vertex

Declaration
public int FindPolygonHoleVertexNumberForVertex(PolygonID PolygonID, int HoleNumber, VertexID VertexID)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
VertexID VertexID
Returns
Type Description
System.Int32
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FindPolygonLoop(EdgeID)

Find Polygon Loop

Declaration
public (IReadOnlyCollection<EdgeID>, IReadOnlyCollection<EdgeID>, IReadOnlyCollection<EdgeID>, IReadOnlyCollection<PolygonID>) FindPolygonLoop(EdgeID EdgeID)
Parameters
Type Name Description
EdgeID EdgeID
Returns
Type Description
System.ValueTuple<System.Collections.Generic.IReadOnlyCollection<EdgeID>, System.Collections.Generic.IReadOnlyCollection<EdgeID>, System.Collections.Generic.IReadOnlyCollection<EdgeID>, System.Collections.Generic.IReadOnlyCollection<PolygonID>>
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FindPolygonPerimeterEdgeNumberForVertices(PolygonID, VertexID, VertexID)

Find Polygon Perimeter Edge Number for Vertices

Declaration
public int FindPolygonPerimeterEdgeNumberForVertices(PolygonID PolygonID, VertexID EdgeVertexID0, VertexID EdgeVertexID1)
Parameters
Type Name Description
PolygonID PolygonID
VertexID EdgeVertexID0
VertexID EdgeVertexID1
Returns
Type Description
System.Int32
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FindPolygonPerimeterVertexNumberForVertex(PolygonID, VertexID)

Find Polygon Perimeter Vertex Number for Vertex

Declaration
public int FindPolygonPerimeterVertexNumberForVertex(PolygonID PolygonID, VertexID VertexID)
Parameters
Type Name Description
PolygonID PolygonID
VertexID VertexID
Returns
Type Description
System.Int32
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FlipPolygons(Byte)

Flip Polygons

Declaration
public void FlipPolygons(byte PolygonIDs)
Parameters
Type Name Description
System.Byte PolygonIDs
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GeneratePolygonTangentsAndNormals(Byte)

Generate Polygon Tangents and Normals

Declaration
public void GeneratePolygonTangentsAndNormals(byte PolygonIDs)
Parameters
Type Name Description
System.Byte PolygonIDs
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GetEdgeConnectedPolygon(EdgeID, Int32)

Returns the indexed polygon connected to this edge

Declaration
public PolygonID GetEdgeConnectedPolygon(EdgeID EdgeID, int ConnectedPolygonNumber)
Parameters
Type Name Description
EdgeID EdgeID
System.Int32 ConnectedPolygonNumber
Returns
Type Description
PolygonID
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GetEdgeConnectedPolygonCount(EdgeID)

Returns the number of polygons connected to this edge

Declaration
public int GetEdgeConnectedPolygonCount(EdgeID EdgeID)
Parameters
Type Name Description
EdgeID EdgeID
Returns
Type Description
System.Int32
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GetEdgeConnectedPolygons(EdgeID)

Get Edge Connected Polygons

Declaration
public IReadOnlyCollection<PolygonID> GetEdgeConnectedPolygons(EdgeID EdgeID)
Parameters
Type Name Description
EdgeID EdgeID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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GetEdgeCount()

Returns the number of edges in this mesh

Declaration
public int GetEdgeCount()
Returns
Type Description
System.Int32
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GetEdgeLoopElements(EdgeID)

Get Edge Loop Elements

Declaration
public IReadOnlyCollection<EdgeID> GetEdgeLoopElements(EdgeID EdgeID)
Parameters
Type Name Description
EdgeID EdgeID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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GetEdgeThatConnectsVertices(VertexID, VertexID)

Get Edge That Connects Vertices

Declaration
public EdgeID GetEdgeThatConnectsVertices(VertexID VertexID0, VertexID VertexID1)
Parameters
Type Name Description
VertexID VertexID0
VertexID VertexID1
Returns
Type Description
EdgeID
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GetEdgeVertex(EdgeID, Int32)

Returns the given indexed vertex for this edge. EdgeVertexNumber must be 0 or 1.

Declaration
public VertexID GetEdgeVertex(EdgeID EdgeID, int EdgeVertexNumber)
Parameters
Type Name Description
EdgeID EdgeID
System.Int32 EdgeVertexNumber
Returns
Type Description
VertexID
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GetEdgeVertices(EdgeID)

Get Edge Vertices

Declaration
public (VertexID, VertexID) GetEdgeVertices(EdgeID EdgeID)
Parameters
Type Name Description
EdgeID EdgeID
Returns
Type Description
System.ValueTuple<VertexID, VertexID>
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GetFirstValidPolygonGroup()

Get First Valid Polygon Group

Declaration
public PolygonGroupID GetFirstValidPolygonGroup()
Returns
Type Description
PolygonGroupID
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GetGroupForPolygon(PolygonID)

Returns the polygon group this polygon is assigned to

Declaration
public PolygonGroupID GetGroupForPolygon(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
PolygonGroupID
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GetPolygonAdjacentPolygons(PolygonID)

Get Polygon Adjacent Polygons

Declaration
public IReadOnlyCollection<PolygonID> GetPolygonAdjacentPolygons(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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GetPolygonCount()

Returns the number of polygons in this mesh

Declaration
public int GetPolygonCount()
Returns
Type Description
System.Int32
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GetPolygonCountInGroup(PolygonGroupID)

Returns the number of polygons in this polygon group

Declaration
public int GetPolygonCountInGroup(PolygonGroupID PolygonGroupID)
Parameters
Type Name Description
PolygonGroupID PolygonGroupID
Returns
Type Description
System.Int32
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GetPolygonGroupCount()

Returns the number of polygon groups in this mesh

Declaration
public int GetPolygonGroupCount()
Returns
Type Description
System.Int32
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GetPolygonHoleCount(PolygonID)

Returns the number of hole contours this polygon has

Declaration
public int GetPolygonHoleCount(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Int32
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GetPolygonHoleEdge(PolygonID, Int32, Int32)

Get Polygon Hole Edge

Declaration
public EdgeID GetPolygonHoleEdge(PolygonID PolygonID, int HoleNumber, int HoleEdgeNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
System.Int32 HoleEdgeNumber
Returns
Type Description
EdgeID
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GetPolygonHoleEdgeCount(PolygonID, Int32)

Get Polygon Hole Edge Count

Declaration
public int GetPolygonHoleEdgeCount(PolygonID PolygonID, int HoleNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
Returns
Type Description
System.Int32
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GetPolygonHoleEdges(PolygonID, Int32)

Get Polygon Hole Edges

Declaration
public IReadOnlyCollection<EdgeID> GetPolygonHoleEdges(PolygonID PolygonID, int HoleNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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GetPolygonHoleVertex(PolygonID, Int32, Int32)

Returns the indexed vertex on the given hole contour of the polygon

Declaration
public VertexID GetPolygonHoleVertex(PolygonID PolygonID, int HoleNumber, int PolygonVertexNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
System.Int32 PolygonVertexNumber
Returns
Type Description
VertexID
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GetPolygonHoleVertexCount(PolygonID, Int32)

Returns the number of vertices on the indexed hole contour for this polygon

Declaration
public int GetPolygonHoleVertexCount(PolygonID PolygonID, int HoleNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
Returns
Type Description
System.Int32
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GetPolygonHoleVertexInstance(PolygonID, Int32, Int32)

Returns the indexed vertex instance on the given hole contour of the polygon

Declaration
public VertexInstanceID GetPolygonHoleVertexInstance(PolygonID PolygonID, int HoleNumber, int PolygonVertexNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
System.Int32 PolygonVertexNumber
Returns
Type Description
VertexInstanceID
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GetPolygonHoleVertexInstances(PolygonID, Int32)

Get Polygon Hole Vertex Instances

Declaration
public IReadOnlyCollection<VertexInstanceID> GetPolygonHoleVertexInstances(PolygonID PolygonID, int HoleNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexInstanceID>
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GetPolygonHoleVertices(PolygonID, Int32)

Get Polygon Hole Vertices

Declaration
public IReadOnlyCollection<VertexID> GetPolygonHoleVertices(PolygonID PolygonID, int HoleNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 HoleNumber
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexID>
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GetPolygonInGroup(PolygonGroupID, Int32)

Returns the given indexed polygon in this polygon group

Declaration
public PolygonID GetPolygonInGroup(PolygonGroupID PolygonGroupID, int PolygonNumber)
Parameters
Type Name Description
PolygonGroupID PolygonGroupID
System.Int32 PolygonNumber
Returns
Type Description
PolygonID
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GetPolygonPerimeterEdge(PolygonID, Int32)

Get Polygon Perimeter Edge

Declaration
public (bool, EdgeID) GetPolygonPerimeterEdge(PolygonID PolygonID, int PerimeterEdgeNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 PerimeterEdgeNumber
Returns
Type Description
System.ValueTuple<System.Boolean, EdgeID>
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GetPolygonPerimeterEdgeCount(PolygonID)

Get Polygon Perimeter Edge Count

Declaration
public int GetPolygonPerimeterEdgeCount(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Int32
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GetPolygonPerimeterEdges(PolygonID)

Get Polygon Perimeter Edges

Declaration
public IReadOnlyCollection<EdgeID> GetPolygonPerimeterEdges(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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GetPolygonPerimeterVertex(PolygonID, Int32)

Returns the indexed vertex on this polygon's perimeter

Declaration
public VertexID GetPolygonPerimeterVertex(PolygonID PolygonID, int PolygonVertexNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 PolygonVertexNumber
Returns
Type Description
VertexID
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GetPolygonPerimeterVertexCount(PolygonID)

Returns the number of vertices on this polygon's perimeter

Declaration
public int GetPolygonPerimeterVertexCount(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Int32
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GetPolygonPerimeterVertexInstance(PolygonID, Int32)

Returns the indexed vertex instance on this polygon's perimeter

Declaration
public VertexInstanceID GetPolygonPerimeterVertexInstance(PolygonID PolygonID, int PolygonVertexNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 PolygonVertexNumber
Returns
Type Description
VertexInstanceID
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GetPolygonPerimeterVertexInstances(PolygonID)

Get Polygon Perimeter Vertex Instances

Declaration
public IReadOnlyCollection<VertexInstanceID> GetPolygonPerimeterVertexInstances(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexInstanceID>
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GetPolygonPerimeterVertices(PolygonID)

Get Polygon Perimeter Vertices

Declaration
public IReadOnlyCollection<VertexID> GetPolygonPerimeterVertices(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexID>
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GetPolygonTriangulatedTriangle(PolygonID, Int32)

Returns the indexed triangle of the triangulated polygon

Declaration
public MeshTriangle GetPolygonTriangulatedTriangle(PolygonID PolygonID, int PolygonTriangleNumber)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 PolygonTriangleNumber
Returns
Type Description
MeshTriangle
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GetPolygonTriangulatedTriangleCount(PolygonID)

Returns the number of triangles which make up this polygon

Declaration
public int GetPolygonTriangulatedTriangleCount(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Int32
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GetSubdivisionCount()

Get Subdivision Count

Declaration
public int GetSubdivisionCount()
Returns
Type Description
System.Int32
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GetSubdivisionLimitData(SubdivisionLimitData)

Get Subdivision Limit Data

Declaration
public void GetSubdivisionLimitData(SubdivisionLimitData ReturnValue)
Parameters
Type Name Description
SubdivisionLimitData ReturnValue
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GetTextureCoordinateCount()

Get Texture Coordinate Count

Declaration
public int GetTextureCoordinateCount()
Returns
Type Description
System.Int32
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GetVertexAdjacentVertices(VertexID)

Get Vertex Adjacent Vertices

Declaration
public IReadOnlyCollection<VertexID> GetVertexAdjacentVertices(VertexID VertexID)
Parameters
Type Name Description
VertexID VertexID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexID>
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GetVertexConnectedEdge(VertexID, Int32)

Returns the requested edge connected to this vertex

Declaration
public EdgeID GetVertexConnectedEdge(VertexID VertexID, int ConnectedEdgeNumber)
Parameters
Type Name Description
VertexID VertexID
System.Int32 ConnectedEdgeNumber
Returns
Type Description
EdgeID
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GetVertexConnectedEdgeCount(VertexID)

Returns the number of edges connected to this vertex

Declaration
public int GetVertexConnectedEdgeCount(VertexID VertexID)
Parameters
Type Name Description
VertexID VertexID
Returns
Type Description
System.Int32
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GetVertexConnectedEdges(VertexID)

Get Vertex Connected Edges

Declaration
public IReadOnlyCollection<EdgeID> GetVertexConnectedEdges(VertexID VertexID)
Parameters
Type Name Description
VertexID VertexID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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GetVertexConnectedPolygons(VertexID)

Get Vertex Connected Polygons

Declaration
public IReadOnlyCollection<PolygonID> GetVertexConnectedPolygons(VertexID VertexID)
Parameters
Type Name Description
VertexID VertexID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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GetVertexCount()

Returns the number of vertices in this mesh

Declaration
public int GetVertexCount()
Returns
Type Description
System.Int32
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GetVertexInstanceConnectedPolygon(VertexInstanceID, Int32)

Returns the indexed polygon connected to this vertex instance

Declaration
public PolygonID GetVertexInstanceConnectedPolygon(VertexInstanceID VertexInstanceID, int ConnectedPolygonNumber)
Parameters
Type Name Description
VertexInstanceID VertexInstanceID
System.Int32 ConnectedPolygonNumber
Returns
Type Description
PolygonID
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GetVertexInstanceConnectedPolygonCount(VertexInstanceID)

Returns the number of polygons connected to this vertex instance

Declaration
public int GetVertexInstanceConnectedPolygonCount(VertexInstanceID VertexInstanceID)
Parameters
Type Name Description
VertexInstanceID VertexInstanceID
Returns
Type Description
System.Int32
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GetVertexInstanceConnectedPolygons(VertexInstanceID)

Get Vertex Instance Connected Polygons

Declaration
public IReadOnlyCollection<PolygonID> GetVertexInstanceConnectedPolygons(VertexInstanceID VertexInstanceID)
Parameters
Type Name Description
VertexInstanceID VertexInstanceID
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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GetVertexInstanceCount()

Returns the number of vertex instances in this mesh

Declaration
public int GetVertexInstanceCount()
Returns
Type Description
System.Int32
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GetVertexInstanceVertex(VertexInstanceID)

Returns the vertex ID which the given vertex instance is instancing

Declaration
public VertexID GetVertexInstanceVertex(VertexInstanceID VertexInstanceID)
Parameters
Type Name Description
VertexInstanceID VertexInstanceID
Returns
Type Description
VertexID
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GetVertexPairEdge(VertexID, VertexID)

Get Vertex Pair Edge

Declaration
public (bool, EdgeID) GetVertexPairEdge(VertexID VertexID, VertexID NextVertexID)
Parameters
Type Name Description
VertexID VertexID
VertexID NextVertexID
Returns
Type Description
System.ValueTuple<System.Boolean, EdgeID>
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InitializeAdapters()

Initialize Adapters

Declaration
public void InitializeAdapters()
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InsertEdgeLoop(EdgeID, Byte)

Insert Edge Loop

Declaration
public IReadOnlyCollection<EdgeID> InsertEdgeLoop(EdgeID EdgeID, byte Splits)
Parameters
Type Name Description
EdgeID EdgeID
System.Byte Splits
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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InsertPolygonPerimeterVertices(PolygonID, Int32, Byte)

Insert Polygon Perimeter Vertices

Declaration
public void InsertPolygonPerimeterVertices(PolygonID PolygonID, int InsertBeforeVertexNumber, byte VerticesToInsert)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 InsertBeforeVertexNumber
System.Byte VerticesToInsert
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InsetPolygons(Byte, Single, Single, EInsetPolygonsMode)

Inset Polygons

Declaration
public (IReadOnlyCollection<PolygonID>, IReadOnlyCollection<PolygonID>) InsetPolygons(byte PolygonIDs, float InsetFixedDistance, float InsetProgressTowardCenter, EInsetPolygonsMode Mode)
Parameters
Type Name Description
System.Byte PolygonIDs
System.Single InsetFixedDistance
System.Single InsetProgressTowardCenter
EInsetPolygonsMode Mode
Returns
Type Description
System.ValueTuple<System.Collections.Generic.IReadOnlyCollection<PolygonID>, System.Collections.Generic.IReadOnlyCollection<PolygonID>>
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InvalidEdgeID()

Invalid Edge ID

Declaration
public static EdgeID InvalidEdgeID()
Returns
Type Description
EdgeID
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InvalidPolygonGroupID()

Invalid Polygon Group ID

Declaration
public static PolygonGroupID InvalidPolygonGroupID()
Returns
Type Description
PolygonGroupID
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InvalidPolygonID()

Invalid Polygon ID

Declaration
public static PolygonID InvalidPolygonID()
Returns
Type Description
PolygonID
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InvalidVertexID()

Statics

Declaration
public static VertexID InvalidVertexID()
Returns
Type Description
VertexID
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IsBeingModified()

@return Returns true if StartModification() was called and the mesh is able to be modified currently. Remember to call EndModification() when finished.

Declaration
public bool IsBeingModified()
Returns
Type Description
System.Boolean
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IsCommitted()

Is Committed

Declaration
public bool IsCommitted()
Returns
Type Description
System.Boolean
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IsCommittedAsInstance()

Is Committed as Instance

Declaration
public bool IsCommittedAsInstance()
Returns
Type Description
System.Boolean
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IsCompactAllowed()

@return Returns true if compaction is enabled on this mesh

Declaration
public bool IsCompactAllowed()
Returns
Type Description
System.Boolean
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IsOrphanedVertex(VertexID)

Returns whether the given vertex ID is orphaned

Declaration
public bool IsOrphanedVertex(VertexID VertexID)
Parameters
Type Name Description
VertexID VertexID
Returns
Type Description
System.Boolean
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IsPreviewingSubdivisions()

Is Previewing Subdivisions

Declaration
public bool IsPreviewingSubdivisions()
Returns
Type Description
System.Boolean
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IsSpatialDatabaseAllowed()

@return Returns true if our octree spatial database is enabled for this mesh

Declaration
public bool IsSpatialDatabaseAllowed()
Returns
Type Description
System.Boolean
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IsUndoAllowed()

@return Returns true if undo tracking is enabled on this mesh

Declaration
public bool IsUndoAllowed()
Returns
Type Description
System.Boolean
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IsValidEdge(EdgeID)

Returns whether the given edge ID is valid

Declaration
public bool IsValidEdge(EdgeID EdgeID)
Parameters
Type Name Description
EdgeID EdgeID
Returns
Type Description
System.Boolean
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IsValidPolygon(PolygonID)

Returns whether the given polygon ID is valid

Declaration
public bool IsValidPolygon(PolygonID PolygonID)
Parameters
Type Name Description
PolygonID PolygonID
Returns
Type Description
System.Boolean
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IsValidPolygonGroup(PolygonGroupID)

Returns whether the given polygon group ID is valid

Declaration
public bool IsValidPolygonGroup(PolygonGroupID PolygonGroupID)
Parameters
Type Name Description
PolygonGroupID PolygonGroupID
Returns
Type Description
System.Boolean
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IsValidVertex(VertexID)

Returns whether the given vertex ID is valid

Declaration
public bool IsValidVertex(VertexID VertexID)
Parameters
Type Name Description
VertexID VertexID
Returns
Type Description
System.Boolean
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MakeEdgeID(Int32)

Make Edge ID

Declaration
public static EdgeID MakeEdgeID(int EdgeIndex)
Parameters
Type Name Description
System.Int32 EdgeIndex
Returns
Type Description
EdgeID
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MakePolygonGroupID(Int32)

Make Polygon Group ID

Declaration
public static PolygonGroupID MakePolygonGroupID(int PolygonGroupIndex)
Parameters
Type Name Description
System.Int32 PolygonGroupIndex
Returns
Type Description
PolygonGroupID
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MakePolygonID(Int32)

Make Polygon ID

Declaration
public static PolygonID MakePolygonID(int PolygonIndex)
Parameters
Type Name Description
System.Int32 PolygonIndex
Returns
Type Description
PolygonID
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MakeVertexID(Int32)

Make Vertex ID

Declaration
public static VertexID MakeVertexID(int VertexIndex)
Parameters
Type Name Description
System.Int32 VertexIndex
Returns
Type Description
VertexID
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MoveVertices(Byte)

Move Vertices

Declaration
public void MoveVertices(byte VerticesToMove)
Parameters
Type Name Description
System.Byte VerticesToMove
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New(UObject, Name)

Spawn an object of this class

Declaration
public static EditableMesh New(UObject obj = null, Name name = default(Name))
Parameters
Type Name Description
UObject obj
Name name
Returns
Type Description
EditableMesh
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PropagateInstanceChanges()

Propagate Instance Changes

Declaration
public void PropagateInstanceChanges()
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QuadrangulateMesh()

Quadrangulate Mesh

Declaration
public IReadOnlyCollection<PolygonID> QuadrangulateMesh()
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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RebuildRenderMesh()

Rebuild Render Mesh

Declaration
public void RebuildRenderMesh()
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RemovePolygonPerimeterVertices(PolygonID, Int32, Int32, Boolean)

Remove Polygon Perimeter Vertices

Declaration
public void RemovePolygonPerimeterVertices(PolygonID PolygonID, int FirstVertexNumberToRemove, int NumVerticesToRemove, bool bDeleteOrphanedVertexInstances)
Parameters
Type Name Description
PolygonID PolygonID
System.Int32 FirstVertexNumberToRemove
System.Int32 NumVerticesToRemove
System.Boolean bDeleteOrphanedVertexInstances
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Revert()

Revert

Declaration
public void Revert()
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RevertInstance()

Revert Instance

Declaration
public EditableMesh RevertInstance()
Returns
Type Description
EditableMesh
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SearchSpatialDatabaseForPolygonsInVolume(Byte)

Search Spatial Database for Polygons in Volume

Declaration
public IReadOnlyCollection<PolygonID> SearchSpatialDatabaseForPolygonsInVolume(byte Planes)
Parameters
Type Name Description
System.Byte Planes
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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SearchSpatialDatabaseForPolygonsPotentiallyIntersectingLineSegment(Vector, Vector)

Search Spatial Database for Polygons Potentially Intersecting Line Segment

Declaration
public IReadOnlyCollection<PolygonID> SearchSpatialDatabaseForPolygonsPotentiallyIntersectingLineSegment(Vector LineSegmentStart, Vector LineSegmentEnd)
Parameters
Type Name Description
Vector LineSegmentStart
Vector LineSegmentEnd
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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SetAllowCompact(Boolean)

Sets whether the mesh can be sporadically compacted as modifications are performed @

Declaration
public void SetAllowCompact(bool bInAllowCompact)
Parameters
Type Name Description
System.Boolean bInAllowCompact
Remarks

param bInAllowCompact True if compaction is enabled on this mesh.

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SetAllowSpatialDatabase(Boolean)

Sets whether this mesh should automatically generate and maintain an octree spatial database.

Declaration
public void SetAllowSpatialDatabase(bool bInAllowSpatialDatabase)
Parameters
Type Name Description
System.Boolean bInAllowSpatialDatabase
Remarks

Certain queries may only be supported when the mesh has an octree generated. The octree is never saved or loaded, and always generated on demand. This feature adds significant overhead to editable mesh initialization and modification, so only use it if you really need to.

@param bInAllowSpatialDatabase True if an octree should be generated and maintained for this mesh.

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SetAllowUndo(Boolean)

Sets whether undo is allowed on this mesh @

Declaration
public void SetAllowUndo(bool bInAllowUndo)
Parameters
Type Name Description
System.Boolean bInAllowUndo
Remarks

param bInAllowUndo True if undo features are enabled on this mesh. You're only allowed to call MakeUndo() if this is set to true.

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SetEdgesAttributes(Byte)

Set Edges Attributes

Declaration
public void SetEdgesAttributes(byte AttributesForEdges)
Parameters
Type Name Description
System.Byte AttributesForEdges
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SetEdgesCreaseSharpness(Byte, Byte)

Set Edges Crease Sharpness

Declaration
public void SetEdgesCreaseSharpness(byte EdgeIDs, byte EdgesNewCreaseSharpness)
Parameters
Type Name Description
System.Byte EdgeIDs
System.Byte EdgesNewCreaseSharpness
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SetEdgesHardness(Byte, Byte)

Set Edges Hardness

Declaration
public void SetEdgesHardness(byte EdgeIDs, byte EdgesNewIsHard)
Parameters
Type Name Description
System.Byte EdgeIDs
System.Byte EdgesNewIsHard
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SetEdgesHardnessAutomatically(Byte, Single)

Set Edges Hardness Automatically

Declaration
public void SetEdgesHardnessAutomatically(byte EdgeIDs, float MaxDotProductForSoftEdge)
Parameters
Type Name Description
System.Byte EdgeIDs
System.Single MaxDotProductForSoftEdge
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SetEdgesVertices(Byte)

@todo mesheditor: Not used for anything yet. Remove it? Use it during import/convert?

Declaration
public void SetEdgesVertices(byte VerticesForEdges)
Parameters
Type Name Description
System.Byte VerticesForEdges
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SetPolygonsVertexAttributes(Byte)

Set Polygons Vertex Attributes

Declaration
public void SetPolygonsVertexAttributes(byte VertexAttributesForPolygons)
Parameters
Type Name Description
System.Byte VertexAttributesForPolygons
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SetSubdivisionCount(Int32)

Set Subdivision Count

Declaration
public void SetSubdivisionCount(int NewSubdivisionCount)
Parameters
Type Name Description
System.Int32 NewSubdivisionCount
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SetTextureCoordinateCount(Int32)

Set Texture Coordinate Count

Declaration
public void SetTextureCoordinateCount(int NumTexCoords)
Parameters
Type Name Description
System.Int32 NumTexCoords
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SetVertexInstancesAttributes(Byte)

Set Vertex Instances Attributes

Declaration
public void SetVertexInstancesAttributes(byte AttributesForVertexInstances)
Parameters
Type Name Description
System.Byte AttributesForVertexInstances
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SetVerticesAttributes(Byte)

Set Vertices Attributes

Declaration
public void SetVerticesAttributes(byte AttributesForVertices)
Parameters
Type Name Description
System.Byte AttributesForVertices
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SetVerticesCornerSharpness(Byte, Byte)

Set Vertices Corner Sharpness

Declaration
public void SetVerticesCornerSharpness(byte VertexIDs, byte VerticesNewCornerSharpness)
Parameters
Type Name Description
System.Byte VertexIDs
System.Byte VerticesNewCornerSharpness
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SplitEdge(EdgeID, Byte)

Split Edge

Declaration
public IReadOnlyCollection<VertexID> SplitEdge(EdgeID EdgeID, byte Splits)
Parameters
Type Name Description
EdgeID EdgeID
System.Byte Splits
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<VertexID>
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SplitPolygons(Byte)

Split Polygons

Declaration
public IReadOnlyCollection<EdgeID> SplitPolygons(byte PolygonsToSplit)
Parameters
Type Name Description
System.Byte PolygonsToSplit
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<EdgeID>
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StartModification(EMeshModificationType, EMeshTopologyChange)

Start Modification

Declaration
public void StartModification(EMeshModificationType MeshModificationType, EMeshTopologyChange MeshTopologyChange)
Parameters
Type Name Description
EMeshModificationType MeshModificationType
EMeshTopologyChange MeshTopologyChange
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TessellatePolygons(Byte, ETriangleTessellationMode)

Tessellate Polygons

Declaration
public IReadOnlyCollection<PolygonID> TessellatePolygons(byte PolygonIDs, ETriangleTessellationMode TriangleTessellationMode)
Parameters
Type Name Description
System.Byte PolygonIDs
ETriangleTessellationMode TriangleTessellationMode
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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TriangulatePolygons(Byte)

Triangulate Polygons

Declaration
public IReadOnlyCollection<PolygonID> TriangulatePolygons(byte PolygonIDs)
Parameters
Type Name Description
System.Byte PolygonIDs
Returns
Type Description
System.Collections.Generic.IReadOnlyCollection<PolygonID>
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TryToRemovePolygonEdge(EdgeID)

Try to Remove Polygon Edge

Declaration
public (bool, PolygonID) TryToRemovePolygonEdge(EdgeID EdgeID)
Parameters
Type Name Description
EdgeID EdgeID
Returns
Type Description
System.ValueTuple<System.Boolean, PolygonID>
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TryToRemoveVertex(VertexID)

Try to Remove Vertex

Declaration
public (bool, EdgeID) TryToRemoveVertex(VertexID VertexID)
Parameters
Type Name Description
VertexID VertexID
Returns
Type Description
System.ValueTuple<System.Boolean, EdgeID>
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WeldVertices(Byte)

Weld Vertices

Declaration
public VertexID WeldVertices(byte VertexIDs)
Parameters
Type Name Description
System.Byte VertexIDs
Returns
Type Description
VertexID

Operators

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Implicit(IntPtr to EditableMesh)

Convert from IntPtr to UObject

Declaration
public static implicit operator EditableMesh(IntPtr p)
Parameters
Type Name Description
System.IntPtr p
Returns
Type Description
EditableMesh