vym: misc.cpp@d251c7b2de54

     1 #include <math.h>

     3 #include <qregexp.h>

     4 //#include <qpoint.h>

     5 #include <stdlib.h>

     7 #include "misc.h"

     9 #include "geometry.h"

    11 QString qpointToString (const QPoint &p)

    12 { return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")"; }

    14 QString qpointFToString (const QPointF &p)

    15 { return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")"; }

    17 QString VectorToString (const Vector &p)

    18 { return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")"; }

    20 ostream &operator<< (ostream &stream, QPoint const &p)

    21 {

    22 	stream << "("<<p.x()<<","<<p.y()<<")";

    23 	return stream;

    24 }

    26 ostream &operator<< (ostream &stream, QPointF const &p)

    27 {

    28 	stream << "("<<p.x()<<","<<p.y()<<")";

    29 	return stream;

    30 }

    32 ostream &operator<< (ostream &stream, Vector const &p)

    33 {

    34 	stream << "("<<p.x()<<","<<p.y()<<")";

    35 	return stream;

    36 }

    38 qreal getAngle(const QPointF &p)

    39 {

    40 	// Calculate angle of vector to y-axis

    41 	if (p.y()==0)

    42 	{

    43 		if (p.x()>=0)

    44 			return M_PI_2;

    45 		else

    46 			return 3* M_PI_2;

    47 	} else

    48 	{

    49 		if (p.y()>0)

    50 			return (qreal)(M_PI  - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) );

    51 		else

    52 			if (p.x()<0)

    53 				return (qreal)( 2*M_PI - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) );

    54 			else

    55 				return (qreal)( - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) );

    56 	}

    57 }

    59 qreal max(qreal a, qreal b)

    60 {

    61 	if (a>b)

    62 		return a;

    63 	return b;

    64 }

author	insilmaril
	Thu, 01 Oct 2009 11:28:50 +0000
changeset 798	d251c7b2de54
parent 792	7d67be709091
child 802	f076fdec767d
permissions	-rw-r--r--