Data Class Reference

Data storage for the density data read in from a file. More...

#include <Data.h>

Collaboration diagram for Data:

[legend]List of all members.

Public Member Functions
	Data (const std::string &aFilename)
	Filename should not include the extension.
	~Data ()
unsigned int	xdim () const
	Size (Indices) in x dimension.
unsigned int	ydim () const
	Size (Indices) in y dimension.
Vector< float >	getData (unsigned int aX, unsigned int aY) const
	Gets the flow value for a specific data index.
int	getDataCount ()
float	getDataPiece (float aX, float aY, unsigned int aDataIndex) const
Vector< float >	getFlow (float aX, float aY) const
unsigned int	countDataPieces () const
	Number of available data pieces.
Vector< float >	minPos () const
	Smallest coordinate value of the data.
Vector< float >	maxPos () const
	Largest coordinate value of the data.
std::pair< float, float >	getDataRange (unsigned int aDataIndex) const
	Gets the range of the data piece aDataIndex.
Private Types
typedef std::vector< std::pair< float, float > >	RangeType
Private Member Functions
DataPoint &	getDataPoint (unsigned int aX, unsigned int aY) const
float	getDataPiece (unsigned int aX, unsigned int aY, unsigned int aDataIndex) const
	Gets the value of the data piece aDataIndex.
Vector< float >	getPosition (unsigned int aX, unsigned int aY) const
	Gets the grid-Position.
Vector< float >	getFlow (unsigned int aX, unsigned int aY) const
void	newDataIndex (float aX, float aY) const
	Transforms world-coords in data-indizes.
	Data (const Data &other)
Data &	operator= (Data &other)
Private Attributes
DataPoint *	mData
float *	mXCellDiff
float *	mYCellDiff
unsigned int	mCurrentX
unsigned int	mCurrentY
RangeType	mDataRanges
unsigned int	mX
unsigned int	mY
unsigned int	mDataCount

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Detailed Description

Data storage for the density data read in from a file.

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Member Typedef Documentation

typedef std::vector< std::pair<float, float> > Data::RangeType [private]

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Constructor & Destructor Documentation

Data::Data (  const std::string &  aFilename  )

Filename should not include the extension. E.g., pass "block" to open block.gri and block.00000.dat.

Data::~Data (   )

Data::Data (  const Data &  other  )  [private]

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Member Function Documentation

unsigned int Data::countDataPieces (   )  const [inline]

Number of available data pieces. They can be accessed using getDataPiece(); they lie in the range [0..countDataPieces()[

Vector<float> Data::getData (  unsigned int  aX, unsigned int  aY )  const [inline]

Gets the flow value for a specific data index. Prefer getFlow() over this function, as that one handles world coordinates.

int Data::getDataCount (   )  [inline]

Returns: number of additional data pieces

float Data::getDataPiece (  unsigned int  aX, unsigned int  aY, unsigned int  aDataIndex )  const [inline, private]

Gets the value of the data piece aDataIndex. the position must be given in data-indizes.

float Data::getDataPiece (  float  aX, float  aY, unsigned int  aDataIndex )  const [inline]

Returns: returns the dataPiece[aDataIndex] of the given world-coord-position. bilinear interpolation is used.

DataPoint& Data::getDataPoint (  unsigned int  aX, unsigned int  aY )  const [inline, private]

std::pair<float, float> Data::getDataRange (  unsigned int  aDataIndex  )  const [inline]

Gets the range of the data piece aDataIndex. The range is calculated from the read-in data. Returns: A pair, where .first is the minimum and .second the maximum

Vector<float> Data::getFlow (  unsigned int  aX, unsigned int  aY )  const [inline, private]

Vector<float> Data::getFlow (  float  aX, float  aY )  const [inline]

Returns: returns the flow-vector of the given world-coord-position. bilinear interpolation is used.

Vector<float> Data::getPosition (  unsigned int  aX, unsigned int  aY )  const [inline, private]

Gets the grid-Position. z-coord is set to 0 the position must be given in data-indizes.

Vector<float> Data::maxPos (   )  const [inline]

Largest coordinate value of the data. (World) coordinates lie in the range [minPos(), maxPos()].

Vector<float> Data::minPos (   )  const [inline]

Smallest coordinate value of the data. (World) coordinates lie in the range [minPos(), maxPos()].

void Data::newDataIndex (  float  aX, float  aY )  const [inline, private]

Transforms world-coords in data-indizes. this function uses mLastPos and mLastIndex to optimize data-access z-coords aren't used. Parameters: aX,aY,:  the upper left corner of the bounding rectangle. (the lower right corner is at (returnVec.x()+1, returnVec.y()+1, 0))

Data& Data::operator= (  Data &  other  )  [private]

unsigned int Data::xdim (   )  const [inline]

Size (Indices) in x dimension.

unsigned int Data::ydim (   )  const [inline]

Size (Indices) in y dimension.

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Member Data Documentation

unsigned int Data::mCurrentX [mutable, private]

unsigned int Data::mCurrentY [mutable, private]

DataPoint* Data::mData [private]

unsigned int Data::mDataCount [private]

RangeType Data::mDataRanges [private]

unsigned int Data::mX [private]

float* Data::mXCellDiff [private]

unsigned int Data::mY [private]

float* Data::mYCellDiff [private]

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

• backend/Data.h
• backend/Data.cpp

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