VecAngle.H

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// $Revision: 1.3 $  $Author: schwehr $  $Date: 2006/03/01 00:37:03 $
/*
    Copyright (C) 2004  Kurt Schwehr

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/
#ifndef _VECANGLE_H_
#define _VECANGLE_H_

#include <math.h>


inline double rad2deg (const float &rad) {return(rad/M_PI * 180.);}
inline double deg2rad (const float &deg) {return(deg/180. * M_PI);}

void flip (double &dec, double &dip); 
void flip (float &dec, float &dip);


float normRadAngle(float angleRad);

void rotateXY (const float x1, const float y1, const float angleRad, float &x2, float &y2);


void xyz2tpr (const double x, const double y, const double z, double &theta, double &phi, double &radius);

void ldi2xyz( const float len, const float dec, const float inc, std::vector<float> &xyz);

inline bool isEqual (const float a, const float b, const float del) {
  return ( ( a<b+del && a > b-del) ? true : false );
}


#endif // _VECANGLE_H_

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