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GPS_Time.h
00001 /* 00002 Copyright (c) 2010 Andy Kirkham 00003 00004 Permission is hereby granted, free of charge, to any person obtaining a copy 00005 of this software and associated documentation files (the "Software"), to deal 00006 in the Software without restriction, including without limitation the rights 00007 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00008 copies of the Software, and to permit persons to whom the Software is 00009 furnished to do so, subject to the following conditions: 00010 00011 The above copyright notice and this permission notice shall be included in 00012 all copies or substantial portions of the Software. 00013 00014 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00015 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00016 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00017 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00018 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00019 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00020 THE SOFTWARE. 00021 */ 00022 00023 #ifndef GPS_TIME_H 00024 #define GPS_TIME_H 00025 00026 #include "mbed.h" 00027 00028 /** GPS_Time definition. 00029 */ 00030 class GPS_Time { 00031 public: 00032 00033 //! The year 00034 int year; 00035 //! The month 00036 int month; 00037 //! The day 00038 int day; 00039 //! The hour 00040 int hour; 00041 //! The minute 00042 int minute; 00043 //! The second 00044 int second; 00045 //! Tenths of a second 00046 int tenths; 00047 //! Hundredths of a second 00048 int hundreths; 00049 //! Time status. 00050 char status; 00051 //! The velocity (in knots) 00052 double velocity; 00053 //! The track (in decimal degrees true) 00054 double track; 00055 //! The magnetic variation direction 00056 char magvar_dir; 00057 //! The magnetic variation value 00058 double magvar; 00059 00060 GPS_Time(); 00061 void fractionalReset(void) { tenths = hundreths = 0; } 00062 void operator++(); 00063 void operator++(int); 00064 GPS_Time * timeNow(GPS_Time *n); 00065 GPS_Time * timeNow(void) { return timeNow(NULL); } 00066 void nmea_rmc(char *s); 00067 double velocity_knots(void) { return velocity; } 00068 double velocity_kph(void) { return (velocity * 1.852); } 00069 double velocity_mps(void) { return velocity_kph() / 3600.0; } 00070 double velocity_mph(void) { return velocity_kph() / 0.621371192; } 00071 double track_over_ground(void) { return track; } 00072 double magnetic_variation(void) { return magvar_dir == 'W' ? (magvar * -1.0) : (magvar); } 00073 double julian_day_number(GPS_Time *t); 00074 double julian_date(GPS_Time *t); 00075 double julian_day_number(void) { return julian_day_number(this); } 00076 double julian_date(void) { return julian_date(this); } 00077 double siderealDegrees(double jd, double longitude); 00078 double siderealDegrees(GPS_Time *t, double longitude); 00079 double siderealHA(double jd, double longitude); 00080 double siderealHA(GPS_Time *t, double longitude); 00081 time_t to_C_tm(bool set = false); 00082 }; 00083 00084 #endif 00085
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