SurfaceMeshEnumerator Class Reference

Enumerates connected components for a surface mesh. More...

#include <easy3d/algo/surface_mesh_enumerator.h>

Static Public Member Functions
static int	enumerate_connected_components (SurfaceMesh *mesh, SurfaceMesh::VertexProperty< int > id)
	Enumerates the connected components of a surface mesh from its vertices. More...
static int	enumerate_connected_components (SurfaceMesh *mesh, SurfaceMesh::FaceProperty< int > id)
	Enumerates the connected components of a surface mesh from its faces. More...
static void	propagate_connected_component (SurfaceMesh *mesh, SurfaceMesh::VertexProperty< int > id, SurfaceMesh::Vertex seed, int cur_id)
	Propagates a connected component of a surface mesh from the seed vertex. More...
static void	propagate_connected_component (SurfaceMesh *mesh, SurfaceMesh::FaceProperty< int > id, SurfaceMesh::Face seed, int cur_id)
	Propagates a connected component of a surface mesh from the seed face. More...
static int	enumerate_planar_components (SurfaceMesh *mesh, SurfaceMesh::FaceProperty< int > id, float angle_threshold=1.0f)
	Enumerates planar patches. More...
static void	propagate_planar_component (SurfaceMesh *mesh, SurfaceMesh::FaceProperty< int > id, SurfaceMesh::Face seed, int cur_id, float angle_threshold)
	Propagates a planar patch from the seed face. More...

Detailed Description

Enumerates connected components for a surface mesh.

Member Function Documentation

enumerate_connected_components() [1/2]

int enumerate_connected_components ( SurfaceMesh *  mesh, SurfaceMesh::FaceProperty< int >  id  )

static

Enumerates the connected components of a surface mesh from its faces.

Parameters

mesh	The input mesh.
id	The face property storing the result.

Returns

The number of connected components.

enumerate_connected_components() [2/2]

int enumerate_connected_components ( SurfaceMesh *  mesh, SurfaceMesh::VertexProperty< int >  id  )

static

Enumerates the connected components of a surface mesh from its vertices.

Parameters

mesh	The input mesh.
id	The vertex property storing the result.

Returns

The number of connected components.

enumerate_planar_components()

int enumerate_planar_components ( SurfaceMesh *  mesh, SurfaceMesh::FaceProperty< int >  id, float  angle_threshold = 1.0f  )

static

Enumerates planar patches.

Parameters

mesh	The input mesh.
id	The vertex property storing the result.
angle_threshold	Two faces sharing a common edge are considered coplanar if the dihedral angle is smaller than angle_threshold (in degrees).

Returns

The number of connected components.

propagate_connected_component() [1/2]

void propagate_connected_component ( SurfaceMesh *  mesh, SurfaceMesh::FaceProperty< int >  id, SurfaceMesh::Face  seed, int  cur_id  )

static

Propagates a connected component of a surface mesh from the seed face.

Parameters

mesh	The input mesh.
id	The face property storing the result.
seed	The seed face from which the connected component will be propagated.
cur_id	The index of the connected component to be propagated.

Attention

The face property id must be initialize with "-1".

propagate_connected_component() [2/2]

void propagate_connected_component ( SurfaceMesh *  mesh, SurfaceMesh::VertexProperty< int >  id, SurfaceMesh::Vertex  seed, int  cur_id  )

static

Propagates a connected component of a surface mesh from the seed vertex.

Parameters

mesh	The input mesh.
id	The vertex property storing the result.
seed	The seed vertex from which the connected component will be propagated.
cur_id	The index of the connected component to be propagated.

Attention

The vertex property id must be initialize with "-1".

propagate_planar_component()

void propagate_planar_component ( SurfaceMesh *  mesh, SurfaceMesh::FaceProperty< int >  id, SurfaceMesh::Face  seed, int  cur_id, float  angle_threshold  )

static

Propagates a planar patch from the seed face.

Parameters

mesh	The input mesh.
id	The face property storing the result.
seed	The seed face from which the planar patch will be propagated.
cur_id	The index of the connected component to be propagated.
angle_threshold	Two faces sharing a common edge are considered coplanar if the dihedral angle is smaller than angle_threshold (in degrees).

Precondition

The face normal property (with name "f:normal") must exist and be up to date.

Attention

The face property id must be initialize with "-1".

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The documentation for this class was generated from the following files:

• /Users/lnan/Documents/Projects/Easy3D/easy3d/algo/surface_mesh_enumerator.h
• /Users/lnan/Documents/Projects/Easy3D/easy3d/algo/surface_mesh_enumerator.cpp