MeshTopologyVertexList

References
public class MeshTopologyVertexList : IEnumerable<Point3f>, IList<Point3f>, IList, IReadOnlyList<Point3f>
Provides access to the mesh topology vertices of a mesh. Topology vertices are sets of vertices in the MeshVertexList that can topologically be considered the same vertex.

Properties

Count

#Since v5.0
public int Count { get; }
Gets or sets the number of mesh topology vertices.
Explicit

ICollection<Point3f>.IsReadOnly

#
bool ICollection<Point3f>.IsReadOnly
Explicit

ICollection.IsSynchronized

#
bool ICollection.IsSynchronized
Explicit

ICollection.SyncRoot

#
object ICollection.SyncRoot
Explicit

IList.IsFixedSize

#
bool IList.IsFixedSize
Explicit

IList.IsReadOnly

#
bool IList.IsReadOnly

Indexers

Explicit

IList.this[]

#
object IList.this[int index]
Parameters:
index (int)

this[]

#
public Point3f this[int index] { get; set; }
Gets or sets the vertex at the given index. Setting a location adjusts all vertices in the mesh's vertex list that are defined by this topological vertex The index must be valid or an IndexOutOfRangeException will be thrown.
Parameters:
index (int)Index of topology vertex to access.
Returns: The topological vertex at [index].

Methods

ConnectedEdge

#Since v6.0
public int ConnectedEdge(int topologyVertexIndex, int edgeAtVertexIndex)
Gets a particular edge that is connected to a topological vertex.

Call TopologyVertices.SortVertices before this if you are interested in ordered edges.

Parameters:
topologyVertexIndex (int)Index of a topology vertex in Mesh.TopologyVertices.
edgeAtVertexIndex (int)Index of the edge at the vertex.
Returns: The index of the connected edge.

ConnectedEdges

#Since v6.0
public int[] ConnectedEdges(int topologyVertexIndex)
Gets all edges that are connected to a given vertex.

Call TopologyVertices.SortVertices before this if you are interested in ordered edges.

Parameters:
topologyVertexIndex (int)Index of a topology vertex in Mesh.TopologyVertices.
Returns: Indices of all edges around vertex that are connected to this topological vertex. null if no faces are connected to this vertex.

ConnectedEdgesCount

#Since v6.0
public int ConnectedEdgesCount(int topologyVertexIndex)
Gets the count of edges that are connected to a given vertex.
Parameters:
topologyVertexIndex (int)Index of a topology vertex in Mesh.TopologyVertices.
Returns: The amount of edges at this vertex. This can be 0.

ConnectedFaces

#Since v5.0
public int[] ConnectedFaces(int topologyVertexIndex)
Gets all faces that are connected to a given vertex.
Parameters:
topologyVertexIndex (int)Index of a topology vertex in Mesh.TopologyVertices.
Returns: Indices of all faces in Mesh.Faces that are connected to this topological vertex. null if no faces are connected to this vertex.

ConnectedTopologyVertices

#Since v5.0
public int[] ConnectedTopologyVertices(int topologyVertexIndex, bool sorted)
Gets all topological vertices that are connected to a given vertex.
Parameters:
topologyVertexIndex (int)index of a topology vertex in Mesh.TopologyVertices.
sorted (bool)if true, the vertices are returned in a radially sorted order.
Returns: Indices of all topological vertices that are connected to this topological vertex. null if no vertices are connected to this vertex.

ConnectedTopologyVertices

#Since v5.0
public int[] ConnectedTopologyVertices(int topologyVertexIndex)
Gets all topological vertices that are connected to a given vertex.
Parameters:
topologyVertexIndex (int)index of a topology vertex in Mesh.TopologyVertices.
Returns: Indices of all topological vertices that are connected to this topological vertex. null if no vertices are connected to this vertex.

GetEnumerator

#Since v5.0
public IEnumerator<Point3f> GetEnumerator()
Gets an enumerator that yields all topology vertices in this collection.
Returns: The enumerator.

IndicesFromFace

#Since v5.0
public int[] IndicesFromFace(int faceIndex)
Returns TopologyVertexIndices for a given mesh face index.
Parameters:
faceIndex (int)The index of a face to query.
Returns: An array of vertex indices.

IsHidden

#Since v5.0
public bool IsHidden(int topologyVertexIndex)
Returns true if the topological vertex is hidden. The mesh topology vertex is hidden if and only if all the ON_Mesh vertices it represents is hidden.
Parameters:
topologyVertexIndex (int)index of a topology vertex in Mesh.TopologyVertices.
Returns: true if mesh topology vertex is hidden.

MeshVertexIndices

#Since v5.0
public int[] MeshVertexIndices(int topologyVertexIndex)
Gets all indices of the mesh vertices that a given topology vertex represents.
Parameters:
topologyVertexIndex (int)Index of a topology vertex in Mesh.TopologyVertices to query.
Returns: Indices of all vertices that in Mesh.Vertices that a topology vertex represents.

SortEdges

#Since v5.0
public bool SortEdges()
Sorts the edge list for the mesh topology vertex list so that the edges are in radial order when you call ConnectedTopologyVertices. A non-manifold edge is treated as a boundary edge with respect to sorting. If any boundary or non-manifold edges end at the vertex, then the first edge will be a boundary or non-manifold edge.
Returns: true on success.

SortEdges

#Since v5.0
public bool SortEdges(int topologyVertexIndex)
Sorts the edge list for as single mesh topology vertex so that the edges are in radial order when you call ConnectedTopologyVertices. A non-manifold edge is treated as a boundary edge with respect to sorting. If any boundary or non-manifold edges end at the vertex, then the first edge will be a boundary or non-manifold edge.
Parameters:
topologyVertexIndex (int)index of a topology vertex in Mesh.TopologyVertices>
Returns: true on success.
Explicit

ICollection<Point3f>.Add

#
void ICollection<Point3f>.Add(Point3f item)
Parameters:
item (Point3f)
Explicit

ICollection<Point3f>.Clear

#
void ICollection<Point3f>.Clear()
Explicit

ICollection<Point3f>.Contains

#
bool ICollection<Point3f>.Contains(Point3f item)
Parameters:
item (Point3f)
Explicit

ICollection<Point3f>.CopyTo

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void ICollection<Point3f>.CopyTo(Point3f[] array, int arrayIndex)
Parameters:
array (Point3f[])
arrayIndex (int)
Explicit

ICollection<Point3f>.Remove

#
bool ICollection<Point3f>.Remove(Point3f item)
Parameters:
item (Point3f)
Explicit

IList<Point3f>.IndexOf

#
int IList<Point3f>.IndexOf(Point3f item)
Parameters:
item (Point3f)
Explicit

IList<Point3f>.Insert

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void IList<Point3f>.Insert(int index, Point3f item)
Parameters:
index (int)
item (Point3f)
Explicit

IList<Point3f>.RemoveAt

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void IList<Point3f>.RemoveAt(int index)
Parameters:
index (int)
Explicit

ICollection.CopyTo

#
void ICollection.CopyTo(Array array, int index)
Parameters:
array (Array)
index (int)
Explicit

IEnumerable.GetEnumerator

#Since v5.0
IEnumerator IEnumerable.GetEnumerator()
Explicit

IList.Add

#
int IList.Add(object value)
Parameters:
value (object)
Explicit

IList.Clear

#
void IList.Clear()
Explicit

IList.Contains

#
bool IList.Contains(object value)
Parameters:
value (object)
Explicit

IList.IndexOf

#
int IList.IndexOf(object value)
Parameters:
value (object)
Explicit

IList.Insert

#
void IList.Insert(int index, object value)
Parameters:
index (int)
value (object)
Explicit

IList.Remove

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void IList.Remove(object value)
Parameters:
value (object)
Explicit

IList.RemoveAt

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void IList.RemoveAt(int index)
Parameters:
index (int)

TopologyVertexIndex

#Since v5.0
public int TopologyVertexIndex(int vertexIndex)
Gets the topology vertex index for an existing mesh vertex in the mesh's VertexList.
Parameters:
vertexIndex (int)Index of a vertex in the Mesh.Vertices.
Returns: Index of a topology vertex in the Mesh.TopologyVertices.