Mercator::Buffer< DataType > Class Template Reference

Template for managing buffers of data for a segment. More...

#include <Buffer.h>

Public Member Functions
	Buffer (const Segment &segment, unsigned int channels=4)
	Constructor. More...
DataType &	operator() (unsigned int x, unsigned int y, unsigned int channel)
	Retrieve the data value at a given point. More...
const DataType &	operator() (unsigned int x, unsigned int y, unsigned int channel) const
	Retrieve the data value at a given point. More...
const Segment &	getSegment () const
	Accessor for the terrain height segment this buffer is associated with.
unsigned int	getSize () const
	Accessor for the size of segment, m_res + 1.
unsigned int	getChannels () const
	Accessor for the number of data values per height point.
DataType *	getData ()
	Accessor for a pointer to buffer containing data values.
void	allocate ()
	Allocate the storage required by the buffer. More...
bool	isValid () const
	Determine if this buffer has valid allocated storage. More...
void	invalidate ()
	De-allocate the storage for this buffer. More...

Public Attributes
const Segment &	m_segment
	The terrain height segment this buffer is associated with.

Private Attributes
const unsigned int	m_channels
	The number of data values per height point.
const unsigned int	m_size
	The size of segment, m_res + 1.
DataType *	m_data
	Pointer to buffer containing data values.

Detailed Description

template<typename DataType>
class Mercator::Buffer< DataType >

Template for managing buffers of data for a segment.

Constructor & Destructor Documentation

template<typename DataType >

Mercator::Buffer< DataType >::Buffer ( const Segment &  segment, unsigned int  channels = 4  )

explicit

Constructor.

Parameters

segment	terrain height segment this buffer is associated with.
channels	number of data values per height point.

References Mercator::Buffer< DataType >::m_data.

Member Function Documentation

template<typename DataType>

void Mercator::Buffer< DataType >::allocate ( )

inline

Allocate the storage required by the buffer.

Allocate memory based on the size and number of channels required by the buffer.

template<typename DataType>

void Mercator::Buffer< DataType >::invalidate ( )

inline

De-allocate the storage for this buffer.

Free the storage allocate for this buffer.

template<typename DataType>

bool Mercator::Buffer< DataType >::isValid ( ) const

inline

Determine if this buffer has valid allocated storage.

Returns

true if storage is allocated.

template<typename DataType>

DataType& Mercator::Buffer< DataType >::operator() ( unsigned int  x, unsigned int  y, unsigned int  channel  )

inline

Retrieve the data value at a given point.

Access the data value associated with given point in the segment in a given channel in this buffer.

Returns

a reference to the value at the point requested.

template<typename DataType>

const DataType& Mercator::Buffer< DataType >::operator() ( unsigned int  x, unsigned int  y, unsigned int  channel  ) const

inline

Retrieve the data value at a given point.

Return the data value associated with given point in the segment in a given channel in this buffer.

Returns

the value at the point requested.

---

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

• Buffer.h
• Buffer_impl.h