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

#include <libs_required/OpenMesh/src/OpenMesh/Tools/Decimater/DecimaterT.hh>

Inheritance diagram for OpenMesh::Decimater::DecimaterT< MeshT >:

Classes
class	HeapInterface
	Heap interface. More...

Public Types
typedef DecimaterT< MeshT >	Self
typedef MeshT	Mesh
typedef CollapseInfoT< MeshT >	CollapseInfo
typedef ModBaseT< MeshT >	Module
typedef std::vector< Module * >	ModuleList
typedef ModuleList::iterator	ModuleListIterator
typedef Mesh::VertexHandle	VertexHandle
typedef Mesh::HalfedgeHandle	HalfedgeHandle
typedef Utils::HeapT< VertexHandle, HeapInterface >	DeciHeap
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
	DecimaterT (Mesh &_mesh)
	Constructor.
	~DecimaterT ()
	Destructor.
size_t	decimate (size_t _n_collapses=0)
	Perform a number of collapses on the mesh. More...
size_t	decimate_to (size_t _n_vertices)
	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)
	Attempts to decimate the mesh until a desired vertex or face complexity is achieved. More...
Public Member Functions inherited from OpenMesh::Decimater::BaseDecimaterT< MeshT >
	BaseDecimaterT (Mesh &_mesh)
bool	initialize ()
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

Private Member Functions
void	heap_vertex (VertexHandle _vh)
	Insert vertex in heap.

Private Attributes
Mesh &	mesh_
std::auto_ptr< DeciHeap >	heap_
VPropHandleT< HalfedgeHandle >	collapse_target_
VPropHandleT< float >	priority_
VPropHandleT< int >	heap_position_

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)
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)
void	reset ()

Detailed Description

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

Decimater framework.

See also

BaseModT, Mesh Decimation Framework

Definition at line 83 of file DecimaterT.hh.

Member Function Documentation

template<class Mesh >

size_t OpenMesh::Decimater::DecimaterT< Mesh >::decimate

(

size_t

_n_collapses = 0

)

Perform a number of collapses on the mesh.

Parameters

_n_collapses

Desired number of collapses. If zero (default), attempt to do as many collapses as possible.

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.

Definition at line 156 of file DecimaterT.cc.

template<typename MeshT >

size_t OpenMesh::Decimater::DecimaterT< MeshT >::decimate_to ( size_t  _n_vertices )

inline

Decimate the mesh to a desired target vertex complexity.

Parameters

_n_vertices

Target complexity, i.e. desired number of remaining vertices after 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.

Definition at line 124 of file DecimaterT.hh.

template<class Mesh >

size_t OpenMesh::Decimater::DecimaterT< Mesh >::decimate_to_faces	(	size_t	_n_vertices = 0,
		size_t	_n_faces = 0
	)

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.

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.

Definition at line 260 of file DecimaterT.cc.

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

• libs_required/OpenMesh/src/OpenMesh/Tools/Decimater/DecimaterT.hh
• libs_required/OpenMesh/src/OpenMesh/Tools/Decimater/DecimaterT.cc