mirror of https://github.com/wb2osz/direwolf.git
24 lines
739 B
C
24 lines
739 B
C
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/* latlong.h */
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/* Use this value for unknown latitude/longitude or other values. */
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#define G_UNKNOWN (-999999)
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void latitude_to_str (double dlat, int ambiguity, char *slat);
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void longitude_to_str (double dlong, int ambiguity, char *slong);
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void latitude_to_comp_str (double dlat, char *clat);
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void longitude_to_comp_str (double dlon, char *clon);
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void latitude_to_nmea (double dlat, char *slat, char *hemi);
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void longitude_to_nmea (double dlong, char *slong, char *hemi);
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double latitude_from_nmea (char *pstr, char *phemi);
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double longitude_from_nmea (char *pstr, char *phemi);
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double ll_distance_km (double lat1, double lon1, double lat2, double lon2);
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int ll_from_grid_square (char *maidenhead, double *dlat, double *dlon); |