Differential D29325 Diff 81867 kstars/fitsviewer/hough/houghline.h

Changeset View

Standalone View

kstars/fitsviewer/hough/houghline.h

This file was added.

		1		/* HoughLine
		2		Copyright (C) 2019 Patrick Molenaar (pr_molenaar@hotmail.com)
		3
		4		This application is free software; you can redistribute it and/or
		5		modify it under the terms of the GNU General Public
		6		License as published by the Free Software Foundation; either
		7		version 2 of the License, or (at your option) any later version.
		8		*/
		9
		10		#ifndef HOUGHLINE_H_
		11		#define HOUGHLINE_H_
		12
		13		#include <QLineF>
		14		#include <QPointF>
		15		#include <stdio.h>
		16		#include <qmath.h>
		17
		18		/**
		19		* @class HoughLine
		20		* Line representation for HoughTransform
		21		* Based on the java implementation found on http://vase.essex.ac.uk/software/HoughTransform
		22		* @author Patrick Molenaar
		23		* @version 1.0
		24		*/
		25		class HoughLine : public QLineF
		26		{
		27		public:
		28		enum IntersectResult {
		29		PARALLEL,
		30		COINCIDENT,
		31		NOT_INTERESECTING,
		32		INTERESECTING
		33		};
		34
		35		HoughLine(double theta, double r, int width, int height, int score);
		36		virtual ~HoughLine() = default;
		37		QPointF RotatePoint(int x1, double r, double theta, int width, int height);
		38		IntersectResult Intersect(const HoughLine& other_line, QPointF& intersection);
		39		bool DistancePointLine(const QPointF& point, QPointF& intersection, double& distance);
		40		int getScore() const;
		41		double getR() const;
		42		double getTheta() const;
		43		void setTheta(const double theta);
		44
		45		HoughLine& operator=(const HoughLine &other)
		46		{
		47		theta = other.getTheta();
		48		r = other.getR();
		49		score = other.getScore();
		50		setP1(other.p1());
		51		setP2(other.p2());
		52		return *this;
		53		}
		54
		55		bool operator<(const HoughLine &other) const
		56		{
		57		return (score < other.getScore());
		58		}
		59
		60		static bool compareByScore(const HoughLine line1,const HoughLine line2);
		61		static bool compareByTheta(const HoughLine line1,const HoughLine line2);
		62		static void getSortedTopThreeLines(QVector<HoughLine> &houghLines, QVector<HoughLine> &top3Lines);
		63
		64		void printHoughLine();
		65		void Offset(const int offsetX, const int offsetY);
		66
		67		private:
		68		double Magnitude(const QPointF& point1, const QPointF& point2);
		69
		70		int score;
		71		double theta;
		72		double r;
		73		QPointF beginPoint;
		74		QPointF endPoint;
		75		};
		76
		77		#endif