OpenMesh
OpenMesh::Decimater::McDecimaterT< MeshT > Class Template Reference

Multiple choice decimater framework. More...

#include <OpenMesh/Tools/Decimater/McDecimaterT.hh>

Inheritance diagram for OpenMesh::Decimater::McDecimaterT< MeshT >:
Collaboration diagram for OpenMesh::Decimater::McDecimaterT< MeshT >:

Public Types

typedef McDecimaterT< MeshT > Self
 
typedef MeshT Mesh
 
typedef CollapseInfoT< MeshT > CollapseInfo
 
typedef ModBaseT< MeshT > Module
 
typedef std::vector< Module * > ModuleList
 
typedef ModuleList::iterator ModuleListIterator
 
- Public Types inherited from OpenMesh::Decimater::BaseDecimaterT< MeshT >
typedef BaseDecimaterT< MeshT > Self
 
typedef MeshT Mesh
 
typedef CollapseInfoT< MeshT > CollapseInfo
 
typedef ModBaseT< MeshT > Module
 
typedef std::vector< Module * > ModuleList
 
typedef ModuleList::iterator ModuleListIterator
 

Public Member Functions

 McDecimaterT (Mesh &_mesh)
 Constructor.
 
 ~McDecimaterT ()
 Destructor.
 
size_t decimate (size_t _n_collapses, bool _only_selected=false)
 Decimate (perform _n_collapses collapses). More...
 
size_t decimate_to (size_t _n_vertices, bool _only_selected=false)
 Decimate the mesh to a desired target vertex complexity. More...
 
size_t decimate_to_faces (size_t _n_vertices=0, size_t _n_faces=0, bool _only_selected=false)
 Attempts to decimate the mesh until a desired vertex or face complexity is achieved. More...
 
size_t decimate_constraints_only (float _factor, bool _only_selected=false)
 Decimate only with constraints, while _factor gives the percentage of the constraints that should be used.
 
size_t samples ()
 
void set_samples (const size_t _value)
 
- Public Member Functions inherited from OpenMesh::Decimater::BaseDecimaterT< MeshT >
 BaseDecimaterT (Mesh &_mesh)
 
bool initialize ()
 Initialize decimater and decimating modules. More...
 
bool is_initialized () const
 Returns whether decimater has been successfully initialized.
 
void info (std::ostream &_os)
 Print information about modules to _os.
 
void set_observer (Observer *_o)
 Add observer. More...
 
Observerobserver ()
 Get current observer of a decimater.
 
Mesh & mesh ()
 access mesh. used in modules.
 
template<typename _Module >
bool add (ModHandleT< _Module > &_mh)
 add module to decimater
 
template<typename _Module >
bool remove (ModHandleT< _Module > &_mh)
 remove module
 
template<typename Module >
Modulemodule (ModHandleT< Module > &_mh)
 get module referenced by handle _mh
 

Additional Inherited Members

- Protected Member Functions inherited from OpenMesh::Decimater::BaseDecimaterT< MeshT >
bool notify_observer (size_t _n_collapses)
 returns false, if abort requested by observer
 
void set_uninitialized ()
 Reset the initialized flag, and clear the bmodules_ and cmodule_.
 
void update_modules (CollapseInfo &_ci)
 
bool is_collapse_legal (const CollapseInfo &_ci)
 Is an edge collapse legal? Performs topological test only. More...
 
float collapse_priority (const CollapseInfo &_ci)
 Calculate priority of an halfedge collapse (using the modules)
 
void preprocess_collapse (CollapseInfo &_ci)
 Pre-process a collapse.
 
void postprocess_collapse (CollapseInfo &_ci)
 Post-process a collapse.
 
void set_error_tolerance_factor (double _factor)
 This provides a function that allows the setting of a percentage of the original constraint of the modules. More...
 
void reset ()
 Reset the status of this class. More...
 

Detailed Description

template<typename MeshT>
class OpenMesh::Decimater::McDecimaterT< MeshT >

Multiple choice decimater framework.

See also
BaseModT, Mesh Decimation Framework

Member Function Documentation

◆ decimate()

template<class Mesh >
size_t OpenMesh::Decimater::McDecimaterT< Mesh >::decimate ( size_t  _n_collapses,
bool  _only_selected = false 
)

Decimate (perform _n_collapses collapses).

Return number of performed collapses. If _n_collapses is not given reduce as much as possible

Parameters
_n_collapsesDesired number of collapses. If zero (default), attempt to do as many collapses as possible.
_only_selectedOnly consider vertices which are selected for decimation
Returns
Number of collapses that were actually performed.
Note
This operation only marks the removed mesh elements for deletion. In order to actually remove the decimated elements from the mesh, a subsequent call to ArrayKernel::garbage_collection() is required.

◆ decimate_to()

template<typename MeshT >
size_t OpenMesh::Decimater::McDecimaterT< MeshT >::decimate_to ( size_t  _n_vertices,
bool  _only_selected = false 
)
inline

Decimate the mesh to a desired target vertex complexity.

Parameters
_n_verticesTarget complexity, i.e. desired number of remaining vertices after decimation.
_only_selectedOnly consider vertices which are selected for decimation
Returns
Number of collapses that were actually performed.
Note
This operation only marks the removed mesh elements for deletion. In order to actually remove the decimated elements from the mesh, a subsequent call to ArrayKernel::garbage_collection() is required.

◆ decimate_to_faces()

template<class Mesh >
size_t OpenMesh::Decimater::McDecimaterT< Mesh >::decimate_to_faces ( size_t  _n_vertices = 0,
size_t  _n_faces = 0,
bool  _only_selected = false 
)

Attempts to decimate the mesh until a desired vertex or face complexity is achieved.

Parameters
_n_verticesTarget vertex complexity.
_n_facesTarget face complexity.
_only_selectedOnly consider vertices which are selected for decimation
Returns
Number of collapses that were actually performed.
Note
Decimation stops as soon as either one of the two complexity bounds is satisfied.
This operation only marks the removed mesh elements for deletion. In order to actually remove the decimated elements from the mesh, a subsequent call to ArrayKernel::garbage_collection() is required.

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

Project OpenMesh, ©  Visual Computing Institute, RWTH Aachen. Documentation generated using doxygen .