Table of subdivision stencils. More...

#include <stencilTable.h>

Inheritance diagram for StencilTable:

Public Member Functions
int	GetNumStencils () const
	Returns the number of stencils in the table. More...

int	GetNumControlVertices () const
	Returns the number of control vertices indexed in the table. More...

Stencil	GetStencil (Index i) const
	Returns a Stencil at index i in the table. More...

std::vector< int > const &	GetSizes () const
	Returns the number of control vertices of each stencil in the table. More...

std::vector< Index > const &	GetOffsets () const
	Returns the offset to a given stencil (factory may leave empty) More...

std::vector< Index > const &	GetControlIndices () const
	Returns the indices of the control vertices. More...

std::vector< float > const &	GetWeights () const
	Returns the stencil interpolation weights. More...

Stencil	operator[] (Index index) const
	Returns the stencil at index i in the table. More...

template<class T >
void	UpdateValues (T const controlValues, T values, Index start=-1, Index end=-1) const
	Updates point values based on the control values. More...

void	Clear ()
	Clears the stencils from the table. More...

Protected Member Functions
template<class T >
void	update (T const controlValues, T values, std::vector< float > const &valueWeights, Index start, Index end) const

void	generateOffsets ()

void	resize (int nstencils, int nelems)

	StencilTable ()

	StencilTable (int numControlVerts)

Protected Attributes
int	_numControlVertices

std::vector< int >	_sizes

std::vector< Index >	_offsets

std::vector< Index >	_indices

std::vector< float >	_weights

Friends
class	StencilTableFactory

class	GregoryBasis

Detailed Description

Table of subdivision stencils.

Stencils are the most direct methods of evaluation of locations on the limit of a surface. Every point of a limit surface can be computed by linearly blending a collection of coarse control vertices.

A stencil assigns a series of control vertex indices with a blending weight that corresponds to a unique parametric location of the limit surface. When the control vertices move in space, the limit location can be very efficiently recomputed simply by applying the blending weights to the series of coarse control vertices.

Definition at line 125 of file stencilTable.h.

Constructor & Destructor Documentation

StencilTable ( )

inlineprotected

Definition at line 207 of file stencilTable.h.

StencilTable ( int numControlVerts )

inlineprotected

Definition at line 208 of file stencilTable.h.

Member Function Documentation

void Clear ( )

Clears the stencils from the table.

void generateOffsets ( )

inlineprotected

Definition at line 383 of file stencilTable.h.

std::vector<Index> const& GetControlIndices ( ) const

inline

Returns the indices of the control vertices.

Definition at line 160 of file stencilTable.h.

int GetNumControlVertices ( ) const

inline

Returns the number of control vertices indexed in the table.

Definition at line 142 of file stencilTable.h.

int GetNumStencils ( ) const

inline

Returns the number of stencils in the table.

Definition at line 137 of file stencilTable.h.

std::vector<Index> const& GetOffsets ( ) const

inline

Returns the offset to a given stencil (factory may leave empty)

Definition at line 155 of file stencilTable.h.

std::vector<int> const& GetSizes ( ) const

inline

Returns the number of control vertices of each stencil in the table.

Definition at line 150 of file stencilTable.h.

Stencil GetStencil ( Index i ) const

inline

Returns a Stencil at index i in the table.

Definition at line 402 of file stencilTable.h.

std::vector<float> const& GetWeights ( ) const

inline

Returns the stencil interpolation weights.

Definition at line 165 of file stencilTable.h.

Stencil operator[] ( Index index ) const

inline

Returns the stencil at index i in the table.

Definition at line 413 of file stencilTable.h.

void resize	(	int	nstencils,
		int	nelems
	)

inlineprotected

Definition at line 394 of file stencilTable.h.

void update	(	T const *	controlValues,
		T *	values,
		std::vector< float > const &	valueWeights,
		Index	start,
		Index	end
	)		const

protected

Definition at line 350 of file stencilTable.h.

void UpdateValues	(	T const *	controlValues,
		T *	values,
		Index	start = `-1`,
		Index	end = `-1`
	)		const

inline

Updates point values based on the control values.

Note: The destination buffers are assumed to have allocated at least GetNumStencils() elements.

Parameters

controlValues	Buffer with primvar data for the control vertices
values	Destination buffer for the interpolated primvar data
start	(skip to )index of first value to update
end	Index of last value to update

Definition at line 187 of file stencilTable.h.

Friends And Related Function Documentation

friend class GregoryBasis

friend

Definition at line 214 of file stencilTable.h.

friend class StencilTableFactory

friend

Definition at line 212 of file stencilTable.h.

Member Data Documentation

std::vector<Index> _indices

protected

Definition at line 219 of file stencilTable.h.

int _numControlVertices

protected

Definition at line 216 of file stencilTable.h.

std::vector<Index> _offsets

protected

Definition at line 219 of file stencilTable.h.

std::vector<int> _sizes

protected

Definition at line 218 of file stencilTable.h.

std::vector<float> _weights

protected

Definition at line 221 of file stencilTable.h.

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

opensubdiv/far/stencilTable.h

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation