/* Copyright (c) 2012-2013, 2015-2020 The Linux Foundation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of The Linux Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef LOC_ENG_NMEA_H #define LOC_ENG_NMEA_H #include #include #include #define NMEA_SENTENCE_MAX_LENGTH 200 /** gnss datum type */ #define LOC_GNSS_DATUM_WGS84 0 #define LOC_GNSS_DATUM_PZ90 1 /* len of semi major axis of ref ellips*/ #define MAJA (6378137.0) /* flattening coef of ref ellipsoid*/ #define FLAT (1.0/298.2572235630) /* 1st eccentricity squared*/ #define ESQR (FLAT*(2.0 - FLAT)) /*1 minus eccentricity squared*/ #define OMES (1.0 - ESQR) #define MILARCSEC2RAD (4.848136811095361e-09) /*semi major axis */ #define C_PZ90A (6378136.0) /*semi minor axis */ #define C_PZ90B (6356751.3618) /* Transformation from WGS84 to PZ90 * Cx,Cy,Cz,Rs,Rx,Ry,Rz,C_SYS_A,C_SYS_B*/ const double DatumConstFromWGS84[9] = {+0.003, +0.001, 0.000, (1.0+(0.000*1E-6)), (-0.019*MILARCSEC2RAD), (+0.042*MILARCSEC2RAD), (-0.002*MILARCSEC2RAD), C_PZ90A, C_PZ90B}; /** Represents a LTP*/ typedef struct { double lat; double lon; double alt; } LocLla; /** Represents a ECEF*/ typedef struct { double X; double Y; double Z; } LocEcef; void loc_nmea_generate_sv(const GnssSvNotification &svNotify, std::vector &nmeaArraystr); void loc_nmea_generate_pos(const UlpLocation &location, const GpsLocationExtended &locationExtended, const LocationSystemInfo &systemInfo, unsigned char generate_nmea, bool custom_gga_fix_quality, std::vector &nmeaArraystr, int& indexOfGGA); #define DEBUG_NMEA_MINSIZE 6 #define DEBUG_NMEA_MAXSIZE 4096 inline bool loc_nmea_is_debug(const char* nmea, int length) { return ((nullptr != nmea) && (length >= DEBUG_NMEA_MINSIZE) && (length <= DEBUG_NMEA_MAXSIZE) && (nmea[0] == '$') && (nmea[1] == 'P') && (nmea[2] == 'Q') && (nmea[3] == 'W')); } #endif // LOC_ENG_NMEA_H