Streamlines Class Reference

#include <Streamlines.h>

Collaboration diagram for Streamlines:
[legend]

List of all members.

Classes

struct  position
struct  streamline

Public Slots

void setTimestep (int timestep)
void setLineWidth (int width)
void setLineType (int type)
void setTexturePeriod (int period)
void setShowStreamlines (int showCheckState)
void setIntegrationType (int type)
void setDSep (int dsep)
void setDTest (int dtest)

Public Member Functions

 Streamlines (FlowScene *flowScene)
virtual ~Streamlines (void)
void initialize (FlowData *flowData)
bool drawEvenlySpacedStreamLines (FlowData *flowData, int sceneWidth, int sceneHeight, QPointF pos, float zDistance, float xratio, float yratio)
void setStreamlineColor (QColor &color)

Private Types

typedef QList< position > PosList

Private Member Functions

void updateStreamlines ()
int * eulerspaced (float dt, float x, float y, int sceneWidth, int sceneHeight)
int * rungekuttaspaced (float dt, float x, float y, int sceneWidth, int sceneHeight)
bool checkValidStreamlinePoint (float x, float y, int currentline, bool startpoint, bool forward)
float distance (position start, position end)
void setTaperingCoef ()
void addpointtostreamline (float x, float y, float thickness, float angle, int linenumber, bool append)
void storeNewSeedPoints (position p, float xvelocity, float yvelocity)
void drawLinesFromMemory (int sceneWidth, int sceneHeight)
void drawGlyphMapping (int sceneWidth, int sceneHeight)
void drawTexturedStreamlines (int sceneWidth, int sceneHeight)
void setArrowType (int type)
void drawArrow (float arrowsize, float offsetx, float offsety, float angle, int sceneWidth, int sceneHeight)
float textureGenerationSin (int x)
float textureGenerationMod (int x)

Private Attributes

FlowScene * m_flowScene
FlowData * m_flowData
Texture2D m_streamLines2D
Texture2D m_arrowTex2D
QList< position > seedpoints
PosList ** m_pointGrid
int m_gridWidth
int m_gridHeight
int count
float m_dt
float m_dsep
float m_dtest
bool m_showStreamlines
bool m_rungekutta
int m_timestep
int m_textureperiod
float m_linewidth
float m_tempthicknesscoef
int m_linetype
bool m_tapering
float m_yratio
float m_xratio
float m_zDistance
QPointF m_pos
QColor m_StreamlineColor
QList< streamline > m_streamlines

Member Typedef Documentation

typedef QList<position> Streamlines::PosList [private]

Constructor & Destructor Documentation

Streamlines::Streamlines ( FlowScene *  flowScene  ) 

Streamlines::~Streamlines ( void   )  [virtual]

Member Function Documentation

void Streamlines::addpointtostreamline ( float  x,
float  y,
float  thickness,
float  angle,
int  linenumber,
bool  append 
) [private]

Adds a new point to a given streamline

coordinate of the point coordinate of the point of the streamline at the point direction of the streamline at the point number to identify a streamline

bool Streamlines::checkValidStreamlinePoint ( float  x,
float  y,
int  currentline,
bool  startpoint,
bool  forward 
) [private]

Checks if new sample point is valid

float Streamlines::distance ( position  start,
position  end 
) [private]

Calculates the distance between position start and position end

void Streamlines::drawArrow ( float  arrowsize,
float  offsetx,
float  offsety,
float  angle,
int  sceneWidth,
int  sceneHeight 
) [private]

bool Streamlines::drawEvenlySpacedStreamLines ( FlowData *  flowData,
int  sceneWidth,
int  sceneHeight,
QPointF  pos,
float  zDistance,
float  xratio,
float  yratio 
)

Draws the evenly spaced streamlines on the screen

Holds the complete flowdata With of the Scene Height of the Scene current position in the data (needed when zoom is activated zoomfactor

void Streamlines::drawGlyphMapping ( int  sceneWidth,
int  sceneHeight 
) [private]

Draws Glyphs on the streamlines

Screen width Screen heigt

remember remaining distance. If there was space to draw more than one glyph between two samplepoints, distance changes

void Streamlines::drawLinesFromMemory ( int  sceneWidth,
int  sceneHeight 
) [private]

Draws previously computed streamlines on screen

Screen width Screen heigt

void Streamlines::drawTexturedStreamlines ( int  sceneWidth,
int  sceneHeight 
) [private]

Draw Textured Streamlines

int * Streamlines::eulerspaced ( float  dt,
float  x,
float  y,
int  sceneWidth,
int  sceneHeight 
) [private]

Streamlines calculated with euler method

void Streamlines::initialize ( FlowData *  flowData  ) 

int * Streamlines::rungekuttaspaced ( float  dt,
float  x,
float  y,
int  sceneWidth,
int  sceneHeight 
) [private]

Streamlines calculated with runge kutta method

void Streamlines::setArrowType ( int  type  )  [private]

Changes Arrowtype for glyphmapping

sets the arrowtype

void Streamlines::setDSep ( int  dsep  )  [slot]

void Streamlines::setDTest ( int  dtest  )  [slot]

void Streamlines::setIntegrationType ( int  type  )  [slot]

void Streamlines::setLineType ( int  type  )  [slot]

void Streamlines::setLineWidth ( int  width  )  [slot]

void Streamlines::setShowStreamlines ( int  showCheckState  )  [slot]

void Streamlines::setStreamlineColor ( QColor &  color  ) 

void Streamlines::setTaperingCoef (  )  [private]

Calculates the Tappering for the Streamlines

void Streamlines::setTexturePeriod ( int  period  )  [slot]

void Streamlines::setTimestep ( int  timestep  )  [slot]

void Streamlines::storeNewSeedPoints ( position  p,
float  xvelocity,
float  yvelocity 
) [private]

Inserts the Position p into the Lists for the computet Sample points and adds two new Seedpoints

Position of the new Samplepoint X component of the velocity at the position p Y component of the velocity at the position p

float Streamlines::textureGenerationMod ( int  x  )  [private]

float Streamlines::textureGenerationSin ( int  x  )  [private]

void Streamlines::updateStreamlines (  )  [private]

Calculates the evenly spaced streamlines

Member Data Documentation

int Streamlines::count [private]

Texture2D Streamlines::m_arrowTex2D [private]

float Streamlines::m_dsep [private]

float Streamlines::m_dt [private]

float Streamlines::m_dtest [private]

FlowData* Streamlines::m_flowData [private]

FlowScene* Streamlines::m_flowScene [private]

int Streamlines::m_gridHeight [private]

int Streamlines::m_gridWidth [private]

int Streamlines::m_linetype [private]

float Streamlines::m_linewidth [private]

PosList** Streamlines::m_pointGrid [private]

QPointF Streamlines::m_pos [private]

bool Streamlines::m_rungekutta [private]

bool Streamlines::m_showStreamlines [private]

QColor Streamlines::m_StreamlineColor [private]

QList<streamline> Streamlines::m_streamlines [private]

Texture2D Streamlines::m_streamLines2D [private]

bool Streamlines::m_tapering [private]

float Streamlines::m_tempthicknesscoef [private]

int Streamlines::m_textureperiod [private]

int Streamlines::m_timestep [private]

float Streamlines::m_xratio [private]

float Streamlines::m_yratio [private]

float Streamlines::m_zDistance [private]

QList<position> Streamlines::seedpoints [private]

The documentation for this class was generated from the following files:
Generated on Wed Jan 21 13:33:57 2009 for InsightFlow by  doxygen 1.5.7.1