FlowGrid Class Reference

A class that encapasulates and samples the velocity and position data from the datafile. More...

#include <FlowGrid.h>

List of all members.

Public Member Functions
float	RealXToNC (float realX) const
float	RealYToNC (float realY) const
float	RealXToRNC (float realX) const
float	RealYToRNC (float realY) const
float	NCXToReal (float ncX) const
float	NCYToReal (float ncY) const
float	RNCXToReal (float rncX) const
float	RNCYToReal (float rncY) const
float	NCXToRNCX (float ncX) const
float	NCYToRNCY (float ncY) const
float	RNCXToNCX (float rncX) const
float	RNCYToNCY (float rncY) const
float	GetValue (int x, int y, int cnt) const
float	GetValueX (int *coords)
float	GetValueY (int *coords)
float	Interpolate (int cnt, float x, float y, int *tl, int *bl, int *br, int *tr) const
	FlowGrid ()
void	Initialize (float widthRR, float heightRR, int width, int height, int sampleSize, float *data)
float	GetVelocityMagnitudeRNC (float x, float y) const
float	GetVelocityMagnitudeNC (float x, float y) const
float	GetVelocityMagnitude (float x, float y) const
float	GetVelocityMagnitudeRR (float x, float y) const
cml::vector2f	GetVelocityVector (float x, float y) const
cml::vector2f	GetVelocityVectorRNC (float x, float y) const
cml::vector2f	GetVelocityVectorNC (float x, float y) const
cml::vector2f	GetVelocityVectorRR (float x, float y) const
cml::vector2f	GetRRFromNC (cml::vector2f ncCoords) const
cml::vector2f	GetNCFromRR (cml::vector2f rrCoords) const
float	GetX (float x, float y) const
float	GetY (float x, float y) const
float	GetXNC (float x, float y) const
float	GetYNC (float x, float y) const
float	GetXRNC (float x, float y) const
float	GetYRNC (float x, float y) const
bool	IsValidRR (cml::vector2f rrCoords)
int	GetWidth () const
int	GetHeight () const
float	GetWidthRNC () const
float	GetHeightRNC () const
float	GetWidthNC () const
float	GetHeightNC () const
float	GetWidthRR () const
float	GetHeightRR () const
Public Attributes
float *	m_data
	Actual float data.
float	m_width
	Number of samples horizontally of the dataset, is an integer in fact.
float	m_height
	Number of samples vertically of the dataset, is an integer in fact.
float	m_sampleSize
	Number of "channels".
float	m_xNCcoef
float	m_yNCcoef
float	m_widthRR
float	m_heightRR
	RR - really real size of the dataset.
float	m_aspectRatio
	RR - really real size of the dataset.

---

Detailed Description

A class that encapasulates and samples the velocity and position data from the datafile.

A container for the flow data. There are 4 coordinate system: 1) NC - normalized coordinates, the larger dimension is 0.0-1.0, the smaller is scaled proportionally, so 0.0-x, x <= 1.0 2) RNC - rectangular normalized coordinates, both axes are 0.0-1.0, just like a regular opengl texture 3) RR - really real coordinates, ie 0.0-actual dataset width x 0.0-actual dataset height 4) the samples space (ie in the number of steps)

---

Constructor & Destructor Documentation

FlowGrid::FlowGrid

(

)

---

Member Function Documentation

int FlowGrid::GetHeight

(

)

const

float FlowGrid::GetHeightNC

(

)

const

float FlowGrid::GetHeightRNC

(

)

const

float FlowGrid::GetHeightRR

(

)

const [inline]

cml::vector2f FlowGrid::GetNCFromRR

(

cml::vector2f

rrCoords

)

const

cml::vector2f FlowGrid::GetRRFromNC

(

cml::vector2f

ncCoords

)

const

float FlowGrid::GetValue	(	int	x,
		int	y,
		int	cnt
	)			const

float FlowGrid::GetValueX

(

int *

coords

)

[inline]

float FlowGrid::GetValueY

(

int *

coords

)

[inline]

float FlowGrid::GetVelocityMagnitude	(	float	x,
		float	y
	)			const

float FlowGrid::GetVelocityMagnitudeNC	(	float	x,
		float	y
	)			const

float FlowGrid::GetVelocityMagnitudeRNC	(	float	x,
		float	y
	)			const

float FlowGrid::GetVelocityMagnitudeRR	(	float	x,
		float	y
	)			const

cml::vector2f FlowGrid::GetVelocityVector	(	float	x,
		float	y
	)			const

cml::vector2f FlowGrid::GetVelocityVectorNC	(	float	x,
		float	y
	)			const

cml::vector2f FlowGrid::GetVelocityVectorRNC	(	float	x,
		float	y
	)			const

cml::vector2f FlowGrid::GetVelocityVectorRR	(	float	x,
		float	y
	)			const

int FlowGrid::GetWidth

(

)

const

float FlowGrid::GetWidthNC

(

)

const

float FlowGrid::GetWidthRNC

(

)

const

float FlowGrid::GetWidthRR

(

)

const [inline]

float FlowGrid::GetX	(	float	x,
		float	y
	)			const

float FlowGrid::GetXNC	(	float	x,
		float	y
	)			const

float FlowGrid::GetXRNC	(	float	x,
		float	y
	)			const

float FlowGrid::GetY	(	float	x,
		float	y
	)			const

float FlowGrid::GetYNC	(	float	x,
		float	y
	)			const

float FlowGrid::GetYRNC	(	float	x,
		float	y
	)			const

void FlowGrid::Initialize	(	float	widthRR,
		float	heightRR,
		int	width,
		int	height,
		int	sampleSize,
		float *	data
	)

float FlowGrid::Interpolate	(	int	cnt,
		float	x,
		float	y,
		int *	tl,
		int *	bl,
		int *	br,
		int *	tr
	)			const

bool FlowGrid::IsValidRR

(

cml::vector2f

rrCoords

)

[inline]

float FlowGrid::NCXToReal

(

float

ncX

)

const

float FlowGrid::NCXToRNCX

(

float

ncX

)

const

float FlowGrid::NCYToReal

(

float

ncY

)

const

float FlowGrid::NCYToRNCY

(

float

ncY

)

const

float FlowGrid::RealXToNC

(

float

realX

)

const

float FlowGrid::RealXToRNC

(

float

realX

)

const

float FlowGrid::RealYToNC

(

float

realY

)

const

float FlowGrid::RealYToRNC

(

float

realY

)

const

float FlowGrid::RNCXToNCX

(

float

rncX

)

const

float FlowGrid::RNCXToReal

(

float

rncX

)

const

float FlowGrid::RNCYToNCY

(

float

rncY

)

const

float FlowGrid::RNCYToReal

(

float

rncY

)

const

---

Member Data Documentation

float FlowGrid::m_aspectRatio

RR - really real size of the dataset.

float* FlowGrid::m_data

Actual float data.

float FlowGrid::m_height

Number of samples vertically of the dataset, is an integer in fact.

float FlowGrid::m_heightRR

RR - really real size of the dataset.

float FlowGrid::m_sampleSize

Number of "channels".

float FlowGrid::m_width

Number of samples horizontally of the dataset, is an integer in fact.

float FlowGrid::m_widthRR

float FlowGrid::m_xNCcoef

float FlowGrid::m_yNCcoef

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

• C:/Documents and Settings/benesova/Plocha/FlowVis/vislab2/FlowGrid.h
• C:/Documents and Settings/benesova/Plocha/FlowVis/vislab2/FlowGrid.cpp