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diff --git a/apps/gps/nmealib/nmea/gmath.h b/apps/gps/nmealib/nmea/gmath.h
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-/*
- *
- * NMEA library
- * URL: http://nmea.sourceforge.net
- * Author: Tim (xtimor@gmail.com)
- * Licence: http://www.gnu.org/licenses/lgpl.html
- * $Id: gmath.h 17 2008-03-11 11:56:11Z xtimor $
- *
- */
-
-#ifndef __NMEA_GMATH_H__
-#define __NMEA_GMATH_H__
-
-#include "info.h"
-
-#define NMEA_PI (3.141592653589793) /**< PI value */
-#define NMEA_PI180 (NMEA_PI / 180) /**< PI division by 180 */
-#define NMEA_EARTHRADIUS_KM (6378) /**< Earth's mean radius in km */
-#define NMEA_EARTHRADIUS_M (NMEA_EARTHRADIUS_KM * 1000) /**< Earth's mean radius in m */
-#define NMEA_EARTH_SEMIMAJORAXIS_M (6378137.0) /**< Earth's semi-major axis in m according WGS84 */
-#define NMEA_EARTH_SEMIMAJORAXIS_KM (NMEA_EARTHMAJORAXIS_KM / 1000) /**< Earth's semi-major axis in km according WGS 84 */
-#define NMEA_EARTH_FLATTENING (1 / 298.257223563) /**< Earth's flattening according WGS 84 */
-#define NMEA_DOP_FACTOR (5) /**< Factor for translating DOP to meters */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * degree VS radian
- */
-
-float nmea_degree2radian(float val);
-float nmea_radian2degree(float val);
-
-/*
- * NDEG (NMEA degree)
- */
-
-float nmea_ndeg2degree(float val);
-float nmea_degree2ndeg(float val);
-
-float nmea_ndeg2radian(float val);
-float nmea_radian2ndeg(float val);
-
-/*
- * DOP
- */
-
-float nmea_calc_pdop(float hdop, float vdop);
-float nmea_dop2meters(float dop);
-float nmea_meters2dop(float meters);
-
-/*
- * positions work
- */
-
-void nmea_info2pos(const nmeaINFO *info, nmeaPOS *pos);
-void nmea_pos2info(const nmeaPOS *pos, nmeaINFO *info);
-
-float nmea_distance(
- const nmeaPOS *from_pos,
- const nmeaPOS *to_pos
- );
-
-float nmea_distance_ellipsoid(
- const nmeaPOS *from_pos,
- const nmeaPOS *to_pos,
- float *from_azimuth,
- float *to_azimuth
- );
-
-int nmea_move_horz(
- const nmeaPOS *start_pos,
- nmeaPOS *end_pos,
- float azimuth,
- float distance
- );
-
-int nmea_move_horz_ellipsoid(
- const nmeaPOS *start_pos,
- nmeaPOS *end_pos,
- float azimuth,
- float distance,
- float *end_azimuth
- );
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __NMEA_GMATH_H__ */