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

Decimating module to avoid flipping of faces. More...

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

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

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

Public Types
typedef ModNormalFlippingT< MeshT >	Self
typedef OpenMesh::Decimater::ModHandleT < Self >	Handle
typedef OpenMesh::Decimater::ModBaseT < MeshT >	Base
typedef Base::Mesh	Mesh
typedef Base::CollapseInfo	CollapseInfo
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)
	ModNormalFlippingT (MeshT &_mesh)
	Constructor.
float	collapse_priority (const CollapseInfo &_ci)
	Compute collapse priority due to angular deviation of face normals before and after a collapse. More...
void	set_error_tolerance_factor (double _factor)
	set the percentage of maximum normal deviation
double	max_normal_deviation () const
	get normal deviation
void	set_max_normal_deviation (double _d)
	Set normal deviation. More...
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 void	preprocess_collapse (const CollapseInfoT< MeshT > &)
	Before _from_vh has been collapsed into _to_vh, this method will be called.
virtual void	postprocess_collapse (const CollapseInfoT< MeshT > &)
	After _from_vh has been collapsed into _to_vh, this method will be called.

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<typename MeshT>
class OpenMesh::Decimater::ModNormalFlippingT< MeshT >

Decimating module to avoid flipping of faces.

This module can be used only as a binary module. The criterion of allowing/disallowing the collapse is the angular deviation between the face normal of the original faces and normals of the faces after the collapse. The collapse will pass the test, if the deviation is below a given threshold.

Member Function Documentation

template<typename MeshT >

float OpenMesh::Decimater::ModNormalFlippingT< MeshT >::collapse_priority ( const CollapseInfo &  _ci )

inlinevirtual

Compute collapse priority due to angular deviation of face normals before and after a collapse.

1. Compute for each adjacent face of _ci.v0 the face normal if the collpase would be executed.
2. Prevent the collapse, if the cosine of the angle between the original and the new normal is below a given threshold.

Parameters

_ci	The collapse description

Returns

LEGAL_COLLAPSE or ILLEGAL_COLLAPSE

See also

set_max_normal_deviation()

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

template<typename MeshT >

void OpenMesh::Decimater::ModNormalFlippingT< MeshT >::set_max_normal_deviation ( double  _d )

inline

Set normal deviation.

Set the maximum angular deviation of the orignal normal and the new normal in degrees.

---

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

• OpenMesh/Tools/Decimater/ModNormalFlippingT.hh