A singleton that stores all rules for a piecewise-loop subdivision surface. More...

#include <subdivision_rules_piecewise_loop.h>

Classes
struct	NeighborInfo

Public Member Functions
number	get_beta (size_t valency) const
	returns beta as it is used in the subdivision masks. More...

vector3	proj_crease_weights () const

number	proj_inner_center_weight (size_t valence) const

void	proj_inner_crease_nbr_weights (number &centerWgtOut, number nbrWgtsOut, NeighborInfo nbrInfos, size_t numNbrs) const

number	proj_inner_nbr_weight (size_t valence) const

vector3	ref_even_crease_weights () const
	returns weights for center, nbr1 and nbr2. More...

number	ref_even_inner_center_weight (size_t valence) const

number	ref_even_inner_nbr_weight (size_t valence) const

vector2	ref_odd_crease_weights () const

vector4	ref_odd_inner_weights () const

vector4	ref_odd_inner_weights (size_t creaseValence) const
	weights of an odd vertex on an inner edge that is connected to a crease. More...

Static Public Member Functions
static SubdivRules_PLoop &	inst ()
	returns the only instance to this singleton. More...

Private Member Functions
number	calculate_beta (size_t valency) const
	calculates beta as it is used in the subdivision masks. More...

size_t	next_ind (size_t ind, size_t numInds) const
	returns the next index in a cyclic index set More...

SubdivRules_PLoop &	operator= (const SubdivRules_PLoop &src)
	private assignment operator prohibits assignment. More...

size_t	prev_ind (size_t ind, size_t numInds) const
	returns the previous index in a cyclic index set More...

	SubdivRules_PLoop ()
	private constructor prohibits multiple instantiation. More...

	SubdivRules_PLoop (const SubdivRules_PLoop &src)
	private copy constructor prohibits copy-construction. More...

Private Attributes
std::vector< number >	m_betas

Detailed Description

A singleton that stores all rules for a piecewise-loop subdivision surface.

Constructor & Destructor Documentation

◆ SubdivRules_PLoop() [1/2]

ug::SubdivRules_PLoop::SubdivRules_PLoop ( )

private

private constructor prohibits multiple instantiation.

◆ SubdivRules_PLoop() [2/2]

ug::SubdivRules_PLoop::SubdivRules_PLoop ( const SubdivRules_PLoop & src )

private

private copy constructor prohibits copy-construction.

Member Function Documentation

◆ calculate_beta()

number ug::SubdivRules_PLoop::calculate_beta ( size_t valency ) const

private

calculates beta as it is used in the subdivision masks.

References ug::PI.

◆ get_beta()

number ug::SubdivRules_PLoop::get_beta ( size_t valency ) const

returns beta as it is used in the subdivision masks.

performs a lookup if the valency is small enough. calculates a fresh beta else.

Referenced by proj_inner_center_weight(), proj_inner_nbr_weight(), ref_even_inner_center_weight(), and ref_even_inner_nbr_weight().

◆ inst()

static SubdivRules_PLoop& ug::SubdivRules_PLoop::inst ( )

inlinestatic

returns the only instance to this singleton.

Referenced by ug::CalculateSmoothCreaseManifoldPosInParentLevelLoopScheme(), ug::CalculateSmoothManifoldPosInParentLevelLoopScheme(), ug::ProjectToLimitPLoop(), and ug::ProjectToLimitSubdivBoundary().

◆ next_ind()

size_t ug::SubdivRules_PLoop::next_ind	(	size_t	ind,
		size_t	numInds
	)		const

inlineprivate

returns the next index in a cyclic index set

Referenced by proj_inner_crease_nbr_weights().

◆ operator=()

SubdivRules_PLoop & ug::SubdivRules_PLoop::operator= ( const SubdivRules_PLoop & src )

private

private assignment operator prohibits assignment.

◆ prev_ind()

size_t ug::SubdivRules_PLoop::prev_ind	(	size_t	ind,
		size_t	numInds
	)		const

inlineprivate

returns the previous index in a cyclic index set

Referenced by proj_inner_crease_nbr_weights().

◆ proj_crease_weights()

vector3 ug::SubdivRules_PLoop::proj_crease_weights ( ) const

inline

Referenced by ug::ProjectToLimitPLoop(), and ug::ProjectToLimitSubdivBoundary().

◆ proj_inner_center_weight()

number ug::SubdivRules_PLoop::proj_inner_center_weight ( size_t valence ) const

inline

References get_beta().

Referenced by proj_inner_crease_nbr_weights(), and ug::ProjectToLimitPLoop().

◆ proj_inner_crease_nbr_weights()

void ug::SubdivRules_PLoop::proj_inner_crease_nbr_weights	(	number &	centerWgtOut,
		number *	nbrWgtsOut,
		NeighborInfo *	nbrInfos,
		size_t	numNbrs
	)		const

inline

nbrInfos have to be specified in clockwise or counter-clockwise order.

References ug::SubdivRules_PLoop::NeighborInfo::creaseValence, next_ind(), prev_ind(), proj_inner_center_weight(), proj_inner_nbr_weight(), ref_even_inner_center_weight(), ref_even_inner_nbr_weight(), and ref_odd_inner_weights().

Referenced by ug::ProjectToLimitPLoop().

◆ proj_inner_nbr_weight()

number ug::SubdivRules_PLoop::proj_inner_nbr_weight ( size_t valence ) const

inline

References get_beta().

Referenced by proj_inner_crease_nbr_weights(), and ug::ProjectToLimitPLoop().

◆ ref_even_crease_weights()

vector3 ug::SubdivRules_PLoop::ref_even_crease_weights ( ) const

inline

returns weights for center, nbr1 and nbr2.

Referenced by ug::SubdivisionProjector::refinement_begins().

◆ ref_even_inner_center_weight()

number ug::SubdivRules_PLoop::ref_even_inner_center_weight ( size_t valence ) const

inline

References get_beta().

Referenced by ug::CalculateSmoothCreaseManifoldPosInParentLevelLoopScheme(), ug::CalculateSmoothManifoldPosInParentLevelLoopScheme(), proj_inner_crease_nbr_weights(), and ug::SubdivisionProjector::refinement_begins().

◆ ref_even_inner_nbr_weight()

number ug::SubdivRules_PLoop::ref_even_inner_nbr_weight ( size_t valence ) const

inline

References get_beta().

Referenced by ug::CalculateSmoothCreaseManifoldPosInParentLevelLoopScheme(), ug::CalculateSmoothManifoldPosInParentLevelLoopScheme(), proj_inner_crease_nbr_weights(), and ug::SubdivisionProjector::refinement_begins().

◆ ref_odd_crease_weights()

vector2 ug::SubdivRules_PLoop::ref_odd_crease_weights ( ) const

inline

Referenced by ug::SubdivisionProjector::new_vertex().

◆ ref_odd_inner_weights() [1/2]

vector4 ug::SubdivRules_PLoop::ref_odd_inner_weights ( ) const

inline

Referenced by ug::SubdivisionProjector::new_vertex(), proj_inner_crease_nbr_weights(), and ref_odd_inner_weights().

◆ ref_odd_inner_weights() [2/2]

vector4 ug::SubdivRules_PLoop::ref_odd_inner_weights ( size_t creaseValence ) const

inline

weights of an odd vertex on an inner edge that is connected to a crease.

The weight for the vertex on the crease is in v.x(), the inner edge vertex in v.y() and the two indirectly connected vertex weights are in v.z() and v.w. creaseValence specifies the number of associated edges of the crease vertex.

Rules are taken from: "Piecewise Smooth Subdivision Surfaces with Normal Control", H. Biermann, Adi Levin, Denis Zorin.

References ug::PI, and ref_odd_inner_weights().

Member Data Documentation

◆ m_betas

std::vector<number> ug::SubdivRules_PLoop::m_betas

private

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

ugbase/lib_grid/algorithms/subdivision/subdivision_rules_piecewise_loop.h
ugbase/lib_grid/algorithms/subdivision/subdivision_rules_piecewise_loop.cpp

Classes

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ SubdivRules_PLoop() [1/2]

◆ SubdivRules_PLoop() [2/2]

Member Function Documentation

◆ calculate_beta()

◆ get_beta()

◆ inst()

◆ next_ind()

◆ operator=()

◆ prev_ind()

◆ proj_crease_weights()

◆ proj_inner_center_weight()

◆ proj_inner_crease_nbr_weights()

◆ proj_inner_nbr_weight()

◆ ref_even_crease_weights()

◆ ref_even_inner_center_weight()

◆ ref_even_inner_nbr_weight()

◆ ref_odd_crease_weights()

◆ ref_odd_inner_weights() [1/2]

◆ ref_odd_inner_weights() [2/2]

Member Data Documentation

◆ m_betas