Search for usage in LXR

#include <houghline.h>

Inheritance diagram for HoughLine:

Public Types

- Public Types inherited from QLineF
enum  IntersectType

Public Member Functions

 HoughLine (double theta, double r, int width, int height, int score)
bool DistancePointLine (const QPointF &point, QPointF &intersection, double &distance)
double getR () const
int getScore () const
double getTheta () const
IntersectResult Intersect (const HoughLine &other_line, QPointF &intersection)
void Offset (const int offsetX, const int offsetY)
bool operator< (const HoughLine &other) const
HoughLineoperator= (const HoughLine &other)
void printHoughLine ()
QPointF RotatePoint (int x1, double r, double theta, int width, int height)
void setTheta (const double theta)
- Public Member Functions inherited from QLineF
 QLineF (const QLine &line)
 QLineF (const QPointF &p1, const QPointF &p2)
 QLineF (qreal x1, qreal y1, qreal x2, qreal y2)
qreal angle () const const
qreal angle (const QLineF &line) const const
qreal angleTo (const QLineF &line) const const
QPointF center () const const
qreal dx () const const
qreal dy () const const
QLineF::IntersectType intersect (const QLineF &line, QPointF *intersectionPoint) const const
QLineF::IntersectionType intersects (const QLineF &line, QPointF *intersectionPoint) const const
bool isNull () const const
qreal length () const const
QLineF normalVector () const const
bool operator!= (const QLineF &line) const const
QDataStreamoperator<< (QDataStream &stream, const QLineF &line)
bool operator== (const QLineF &line) const const
QDataStreamoperator>> (QDataStream &stream, QLineF &line)
QPointF p1 () const const
QPointF p2 () const const
QPointF pointAt (qreal t) const const
void setAngle (qreal angle)
void setLength (qreal length)
void setLine (qreal x1, qreal y1, qreal x2, qreal y2)
void setP1 (const QPointF &p1)
void setP2 (const QPointF &p2)
void setPoints (const QPointF &p1, const QPointF &p2)
QLine toLine () const const
void translate (const QPointF &offset)
void translate (qreal dx, qreal dy)
QLineF translated (const QPointF &offset) const const
QLineF translated (qreal dx, qreal dy) const const
QLineF unitVector () const const
qreal x1 () const const
qreal x2 () const const
qreal y1 () const const
qreal y2 () const const

Static Public Member Functions

static bool compareByScore (const HoughLine *line1, const HoughLine *line2)
static bool compareByTheta (const HoughLine *line1, const HoughLine *line2)
static void getSortedTopThreeLines (QVector< HoughLine * > &houghLines, QVector< HoughLine * > &top3Lines)
- Static Public Member Functions inherited from QLineF
QLineF fromPolar (qreal length, qreal angle)

Additional Inherited Members

- Public Attributes inherited from QLineF
typedef IntersectionType

Detailed Description

Line representation for HoughTransform Based on the java implementation found on http://vase.essex.ac.uk/software/HoughTransform

Patrick Molenaar

Definition at line 22 of file houghline.h.

Constructor & Destructor Documentation

◆ HoughLine()

HoughLine::HoughLine ( double  theta,
double  r,
int  width,
int  height,
int  score 

Initialises the hough line.

Definition at line 16 of file houghline.cpp.

Member Function Documentation

◆ Intersect()

HoughLine::IntersectResult HoughLine::Intersect ( const HoughLine other_line,
QPointF intersection 

Sources for intersection and distance calculations came from http://paulbourke.net/geometry/pointlineplane/ Also check https://doc.qt.io/archives/qt-4.8/qlinef.html for more line methods.

Definition at line 94 of file houghline.cpp.

The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
Documentation copyright © 1996-2022 The KDE developers.
Generated on Fri Aug 12 2022 04:00:59 by doxygen 1.8.17 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.