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...
Observer *	observer ()
	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 >
Module &	module (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_collapses	Desired number of collapses. If zero (default), attempt to do as many collapses as possible.
_only_selected	Only 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_vertices	Target complexity, i.e. desired number of remaining vertices after decimation.
_only_selected	Only 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_vertices	Target vertex complexity.
_n_faces	Target face complexity.
_only_selected	Only 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.

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

• OpenMesh/Tools/Decimater/McDecimaterT.hh
• OpenMesh/Tools/Decimater/McDecimaterT_impl.hh