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

Collect progressive mesh information while decimating. More...

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

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

Collaboration diagram for OpenMesh::Decimater::ModProgMeshT< MeshT >:

Classes
struct	Info
	Struct storing progressive mesh information. More...

Public Types
typedef ModProgMeshT< MeshT >	Self
typedef OpenMesh::Decimater::ModHandleT< Self >	Handle
typedef OpenMesh::Decimater::ModBaseT< MeshT >	Base
typedef Base::Mesh	Mesh
typedef Base::CollapseInfo	CollapseInfo
typedef std::vector< Info >	InfoList
	Type of the list storing the progressive mesh info Info.
Public Types inherited from OpenMesh::Decimater::ModBaseT< MeshT >
enum	{ ILLEGAL_COLLAPSE = -1, LEGAL_COLLAPSE = 0 }
typedef MeshT	Mesh
typedef CollapseInfoT< MeshT >	CollapseInfo

Public Member Functions
virtual const std::string &	name () const
	Set module's name (using DECIMATER_MODNAME macro)
	ModProgMeshT (MeshT &_mesh)
	Constructor.
	~ModProgMeshT ()
	Destructor.
const InfoList &	pmi () const
void	postprocess_collapse (const CollapseInfo &_ci)
	Stores collapse information in a queue. More...
bool	is_binary (void) const
bool	write (const std::string &_ofname)
	Write progressive mesh data to a file in proprietary binary format .pm. More...
const InfoList &	infolist () const
	Reference to collected information.
Public Member Functions inherited from OpenMesh::Decimater::ModBaseT< MeshT >
virtual	~ModBaseT ()
	Virtual desctructor.
bool	is_binary (void) const
	Returns true if criteria returns a binary value.
void	set_binary (bool _b)
	Set whether module is binary or not.
virtual void	initialize ()
	Initialize module-internal stuff.
virtual float	collapse_priority (const CollapseInfoT< MeshT > &)
	Return collapse priority. More...
virtual void	preprocess_collapse (const CollapseInfoT< MeshT > &)
	Before _from_vh has been collapsed into _to_vh, this method will be called.
virtual void	set_error_tolerance_factor (double _factor)
	This provides a function that allows the setting of a percentage of the original contraint. More...

Additional Inherited Members
Protected Member Functions inherited from OpenMesh::Decimater::ModBaseT< MeshT >
	ModBaseT (MeshT &_mesh, bool _is_binary)
	Default constructor. More...
MeshT &	mesh ()
	Access the mesh associated with the decimater.
Protected Attributes inherited from OpenMesh::Decimater::ModBaseT< MeshT >
double	error_tolerance_factor_

Detailed Description

template<class MeshT>
class OpenMesh::Decimater::ModProgMeshT< MeshT >

Collect progressive mesh information while decimating.

The progressive mesh data is stored in an internal structure, which can be evaluated after the decimation process and (!) before calling the garbage collection of the decimated mesh.

Member Function Documentation

template<class MeshT >

void OpenMesh::Decimater::ModProgMeshT< MeshT >::postprocess_collapse ( const CollapseInfo &  _ci )

inlinevirtual

Stores collapse information in a queue.

See also

infolist()

Reimplemented from OpenMesh::Decimater::ModBaseT< MeshT >.

template<class MeshT >

bool OpenMesh::Decimater::ModProgMeshT< MeshT >::write

(

const std::string &

_ofname

)

Write progressive mesh data to a file in proprietary binary format .pm.

The methods uses the collected data to write a progressive mesh file. It's a binary format with little endian byte ordering:

• The first 8 bytes contain the word "ProgMesh".
• 32-bit int for the number of vertices NV in the base mesh.
• 32-bit int for the number of faces in the base mesh.
• 32-bit int for the number of halfedge collapses (now vertex splits)
• Positions of vertices of the base mesh (32-bit float triplets).
  [x,y,z][x,y,z]...
• Triplets of indices (32-bit int) for each triangle (index in the list of vertices of the base mesh defined by the positions.
  [v0,v1,v2][v0,v1,v2]...
• For each collapse/split a detail information package made of 3 32-bit floats for the positions of vertex v0, and 3 32-bit int indices for v1, vl, and vr. The index for vl or vr might be -1, if the face on this side of the edge does not exists.

Remarks

Write file before calling the garbage collection of the mesh.

Parameters

_ofname

Name of the file, where to write the progressive mesh

Returns

true on success of the operation, else false.

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

• OpenMesh/Tools/Decimater/ModProgMeshT.hh
• OpenMesh/Tools/Decimater/ModProgMeshT.cc