| author | insilmaril |
| Mon, 24 Aug 2009 14:39:07 +0000 | |
| changeset 789 | d85834ad8c54 |
| parent 617 | 7ee5bf3647d3 |
| child 792 | 7d67be709091 |
| permissions | -rw-r--r-- |
| insilmaril@139 | 1 |
#include <math.h> |
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|
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#include <qregexp.h> |
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#include <qpoint.h> |
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#include <stdlib.h> |
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|
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#include "misc.h" |
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|
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QString qpointToString (const QPoint &p) |
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{
|
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return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")";
|
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} |
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|
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QString qpointfToString (const QPointF &p) |
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{
|
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return "(" + QString("%1").arg(p.x()) +","+ QString ("%1").arg (p.y()) +")";
|
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} |
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|
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ostream &operator<< (ostream &stream, QPoint const &p) |
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{
|
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stream << "("<<p.x()<<","<<p.y()<<")";
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return stream; |
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} |
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|
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ostream &operator<< (ostream &stream, QPointF const &p) |
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{
|
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stream << "("<<p.x()<<","<<p.y()<<")";
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return stream; |
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} |
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|
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qreal getAngle(const QPointF &p) |
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{
|
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// Calculate angle of vector to y-axis |
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if (p.y()==0) |
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{
|
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if (p.x()>=0) |
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return M_PI_2; |
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else |
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return 3* M_PI_2; |
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} else |
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{
|
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if (p.y()>0) |
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return (qreal)(M_PI - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) ); |
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else |
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if (p.x()<0) |
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return (qreal)( 2*M_PI - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) ); |
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else |
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return (qreal)( - atan ( (qreal)(p.x()) / (qreal)(p.y()) ) ); |
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} |
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} |
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|
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qreal max(qreal a, qreal b) |
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{
|
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if (a>b) |
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return a; |
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return b; |
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} |
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