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

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

Inheritance diagram for OpenMesh::Decimater::DecimaterT< MeshT >:
OpenMesh::Decimater::BaseDecimaterT< MeshT > OpenMesh::Utils::Noncopyable OpenMesh::Decimater::MixedDecimaterT< 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, HeapInterfaceDeciHeap
 
- 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...
 
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
 

Private Member Functions

void heap_vertex (VertexHandle _vh)
 Insert vertex in heap.
 

Private Attributes

Mesh & mesh_
 
std::auto_ptr< DeciHeapheap_
 
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_collapsesDesired 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_verticesTarget 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_verticesTarget vertex complexity.
_n_facesTarget 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.


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