#include <opennurbs_mesh.h>
◆ ON_MeshTopology()
| ON_MeshTopology::ON_MeshTopology |
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| ) |
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◆ ~ON_MeshTopology()
| ON_MeshTopology::~ON_MeshTopology |
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◆ Dump()
◆ GetIntArray()
| int* ON_MeshTopology::GetIntArray |
( |
int |
count | ) |
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◆ GetTopFaceVertices()
| bool ON_MeshTopology::GetTopFaceVertices |
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int |
topfi, |
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int |
topvi[4] |
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) |
| const |
returns ON_MeshTopology vertex topology index of a face corner. The face is triangle iv TopFaceVertex(2) = TopFaceVertex(3)
- Parameters
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◆ IsValid()
| bool ON_MeshTopology::IsValid |
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| ) |
const |
◆ IsWeldedEdge()
| bool ON_MeshTopology::IsWeldedEdge |
( |
int |
topei | ) |
const |
Parameters: topei - [in] m_tope[] index Returns: true if the edge has 2 distinct vertices, 2 or more attached faces, and all attached faces reference the same ON_Mesh vertices along this edge.
◆ MeshComponentRef()
◆ NgonIndexFromTopologyEdgeIndex()
| unsigned int ON_MeshTopology::NgonIndexFromTopologyEdgeIndex |
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unsigned int |
topei, |
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const unsigned int * |
mesh_facedex_to_ngondex_map |
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) |
| const |
Parameters: topei - [in] Topology edge index mesh_facedex_to_ngondex_map - [in] If null, Mesh().NgonMap() will be used. In cases where Mesh().NgonMap() does not exist and cannot be created, an expert user may pass in a local map that converts a face index into an ngon index. Returns: If the vertex is interior to a single ngon, then the index of the ngon is returned. Otherwise ON_UNSET_UINT_INDEX is returned.
◆ NgonIndexFromTopologyVertexIndex()
| unsigned int ON_MeshTopology::NgonIndexFromTopologyVertexIndex |
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unsigned int |
topvi, |
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const unsigned int * |
mesh_facedex_to_ngondex_map |
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) |
| const |
Parameters: topvi - [in] Topology vertex index mesh_facedex_to_ngondex_map - [in] If null, Mesh().NgonMap() will be used. In cases where Mesh().NgonMap() does not exist and cannot be created, an expert user may pass in a local map that converts a face index into an ngon index. Returns: If the vertex is interior to a single ngon, then the index of the ngon is returned. Otherwise ON_UNSET_UINT_INDEX is returned.
◆ SortVertexEdges() [1/2]
| bool ON_MeshTopology::SortVertexEdges |
( |
| ) |
const |
Description: Sort the m_topei[] list of every mesh topology vertex so that the edges are in radial order. The "const" is a white lie to make this function easier to call. Remarks: Same as for ( int topvi = 0; topvi < m_topv.Count(); topvi++ ) SortVertexEdges(topvi);
◆ SortVertexEdges() [2/2]
| bool ON_MeshTopology::SortVertexEdges |
( |
int |
topvi | ) |
const |
Description: Sort the m_topei[] list of a mesh topology vertex so that the edges are in radial order. The "const" is a white lie to make this function easier to call. Parameter: topvi - [in] index of vertex in m_topv[] array. Remarks: A nonmanifold edge is treated as a boundary edge with respect to sorting. If any boundary or nonmanifold edges end at the vertex, then the first edge will be a boundary or nonmanifold edge.
◆ TopEdge()
| int ON_MeshTopology::TopEdge |
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int |
vtopi0, |
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int |
vtopi1 |
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) |
| const |
returns index of edge that connects topological vertices returns -1 if no edge is found.
- Parameters
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◆ TopEdgeCount()
| int ON_MeshTopology::TopEdgeCount |
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| ) |
const |
number of topological edges
◆ TopEdgeIsHidden()
| bool ON_MeshTopology::TopEdgeIsHidden |
( |
int |
topei | ) |
const |
Description: Returns true if the topological edge is hidden. Parameters: topei - [in] mesh topology edge index. Returns: True if mesh topology edge is hidden. Remarks: The mesh topology edge is hidden if and only if either of its mesh topology vertices is hidden.
◆ TopEdgeLine()
| ON_Line ON_MeshTopology::TopEdgeLine |
( |
int |
tope_index | ) |
const |
Description: Get the 3d line along an edge. Parameters: tope_index - [in]; Returns: Line along edge. If input is not valid, the line.from and to are ON_3dPoint::UnsetPoint
◆ TopFaceCount()
| int ON_MeshTopology::TopFaceCount |
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| ) |
const |
number of topological faces (same as m_mesh.FaceCount())
◆ TopFaceIsHidden()
| bool ON_MeshTopology::TopFaceIsHidden |
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int |
topfi | ) |
const |
Description: Returns true if the topological face is hidden. Parameters: topfi - [in] mesh topology face index. Returns: True if mesh topology face is hidden. Remarks: The mesh topology face is hidden if and only if any of its mesh topology edges are hidden.
◆ TopVertexComponentIndex()
Parameters: ci - [in] A component index with type of ON_COMPONENT_INDEX::TYPE::mesh_vertex or ON_COMPONENT_INDEX::TYPE::meshtop_vertex. Return: If ci correctly identifies a mesh topology vertex, then component index with type of ON_COMPONENT_INDEX::TYPE::meshtop_vertex is returned. Otherwise ON_COMPONENT_INDEX::UnsetComponentIndex is returned.
◆ TopVertexCount()
| int ON_MeshTopology::TopVertexCount |
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| ) |
const |
number of topological vertices (<= m_mesh.VertexCount())
◆ TopVertexIsHidden()
| bool ON_MeshTopology::TopVertexIsHidden |
( |
int |
topvi | ) |
const |
Description: Returns true if the topological vertex is hidden. Parameters: topvi - [in] mesh topology vertex index. Returns: True if mesh topology vertex is hidden. Remarks: The mesh topology vertex is hidden if and only if all the ON_Mesh vertices it represents is hidden.
◆ TopVertexPoint()
| ON_3dPoint ON_MeshTopology::TopVertexPoint |
( |
int |
topv_index | ) |
const |
Description: Get the 3d point location of a vertex. Parameters: topv_index - [in]; Returns: Location of vertex.
◆ ON_Mesh
◆ m_mesh
| const ON_Mesh* ON_MeshTopology::m_mesh |
The parent ON_Mesh geometry used to compute this mesh topology.
◆ m_tope
Array of topological mesh edges. See the comments in the definition of ON_MeshTopologyEdge for details.
◆ m_topf
Array of topological mesh faces. The topological face m_topf[fi] corresponds to the mesh face ON_Mesh.m_F[fi]. See the comments in the definition of ON_MeshTopologyFace for details. To get the indices of the mesh topology vertices at the face corners use topvi = m_topv_map[m_mesh.m_F[fi].vi[n]]
◆ m_topv
Array of topological mesh vertices. See the comments in the definition of ON_MeshTopologyVertex for details.
◆ m_topv_map
m_topv_map[] has length m_mesh.VertexCount() and m_topv[m_topv_map[vi]] is the topological mesh vertex that is associated the with the mesh vertex m_mesh.m_V[vi].
