MeshNgonList

MeshNgonList class

Provides access to the ngons and ngon-related functionality of a Mesh. See also the Rhino.Geometry.Mesh.Ngons property for Ngon functionality details.

Derived Classes:

Namespace: Rhino.Geometry.Collections
MeshNgonList: references

Properties (3)

Count

Gets or sets the number of mesh ngons.

Item

Returns the mesh ngon at the given index.

UnsignedCount

Gets or sets the number of mesh ngons.

Methods (25)

AddNgon(MeshNgon ngon)

Appends a new ngon to the end of the mesh ngon list.

AddNgons(IEnumerable<MeshNgon> ngons)

Appends a list of ngons to the end of the mesh ngon list.

AddPlanarNgons(double planarTolerance, int minimumNgonVertexCount, int minimumNgonFaceCount, bool allowHoles)

Add an ngon for each group of connected coplanar faces.

AddPlanarNgons(double planarTolerance)

Add an ngon for each group of connected coplanar faces.

Clear()

Clears the Ngon list on the mesh.

GetEnumerator()

Gets an enumerator that yields all ngons in this collection.

GetNgon(int index)

Returns the mesh ngon at the given index.

GetNgonBoundary(IEnumerable<int> ngonFaceIndexList)

Get a list of vertices that form the boundary of a face set. This is often use to get ngon boundaries.

GetNgonBoundingBox(int index)

Gets the bounding box of an ngon.

GetNgonBoundingBox(MeshNgon ngon)

Gets the bounding box of an ngon.

GetNgonCenter(int index)

Gets the center point of an ngon.
This the average of the corner points.

GetNgonCenter(MeshNgon ngon)

Gets the center point of an ngon.
This the average of the corner points.

GetNgonEdgeCount(int index)

Gets the complete edge count of an ngon.

GetNgonOuterEdgeCount(int index)

Gets the outer edge count of an ngon.

Insert(int index, MeshNgon ngon)

Inserts a mesh ngon at a defined index in this list.

IsValid(int index, TextLog textLog)

Tests an ngon to see if the vertex and face references are valid and pass partial boundary validity checks.

IsValid(int index)

Tests an ngon to see if the vertex and face references are valid and pass partial boundary validity checks.

NgonBoundaryVertexList(MeshNgon ngon, bool bAppendStartPoint)

Get an ngon's boundary points.

NgonHasHoles(int index)

Determines whether a ngon has holes.

NgonIndexFromFaceIndex(int meshFaceIndex)

Returns the index of a mesh ngon the face belongs to.

Orientation(int index, bool permitHoles)

Determine if the ngon's boundary orientation matches that of the set of faces it is made from.

RemoveAt(int index)

Removes an ngon from the mesh.

RemoveNgons(IEnumerable<int> indices)

Remove one or more ngons from the mesh.

ReverseOuterBoundary(int index)

Reverse the order of the m_vi[] array for an ngon

SetNgon(int index, MeshNgon ngon)

Set an ngon in this list.

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