parsing_utilities.cpp

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// ROSaic includes
#include <septentrio_gnss_driver/parsers/parsing_utilities.hpp>
#include <septentrio_gnss_driver/parsers/string_utilities.h>
// C++ library includes
#include <limits>
// Boost
#include <boost/spirit/include/qi_binary.hpp>
 
namespace parsing_utilities {
 
    namespace qi = boost::spirit::qi;
 
    double wrapAngle180to180(double angle)
    {
        while (angle > 180.0)
        {
            angle -= 360.0;
        }
        while (angle < -180.0)
        {
            angle += 360.0;
        }
        return angle;
    }
 
    double parseDouble(const uint8_t* buffer)
    {
        double val;
        qi::parse(buffer, buffer + 8, qi::little_bin_double, val);
        return val;
    }
 
    bool parseDouble(const std::string& string, double& value)
    {
        return string_utilities::toDouble(string, value) || string.empty();
    }
 
    float parseFloat(const uint8_t* buffer)
    {
        float val;
        qi::parse(buffer, buffer + 4, qi::little_bin_float, val);
        return val;
    }
 
    bool parseFloat(const std::string& string, float& value)
    {
        return string_utilities::toFloat(string, value) || string.empty();
    }
 
    int16_t parseInt16(const uint8_t* buffer)
    {
        int16_t val;
        qi::parse(buffer, buffer + 2, qi::little_word, val);
        return val;
    }
 
    bool parseInt16(const std::string& string, int16_t& value, int32_t base)
    {
        value = 0;
        if (string.empty())
        {
            return true;
        }
 
        int32_t intermd;
        if (string_utilities::toInt32(string, intermd, base) &&
            intermd <= std::numeric_limits<int16_t>::max() &&
            intermd >= std::numeric_limits<int16_t>::min())
        {
            value = static_cast<int16_t>(intermd);
            return true;
        }
 
        return false;
    }
 
    int32_t parseInt32(const uint8_t* buffer)
    {
        int32_t val;
        qi::parse(buffer, buffer + 4, qi::little_dword, val);
        return val;
    }
 
    bool parseInt32(const std::string& string, int32_t& value, int32_t base)
    {
        return string_utilities::toInt32(string, value, base) || string.empty();
    }
 
    bool parseUInt8(const std::string& string, uint8_t& value, int32_t base)
    {
        value = 0;
        if (string.empty())
        {
            return true;
        }
 
        uint32_t intermd;
        if (string_utilities::toUInt32(string, intermd, base) &&
            intermd <= std::numeric_limits<uint8_t>::max())
        {
            value = static_cast<uint8_t>(intermd);
            return true;
        }
 
        return false;
    }
 
    uint16_t parseUInt16(const uint8_t* buffer)
    {
        uint16_t val;
        qi::parse(buffer, buffer + 2, qi::little_word, val);
        return val;
    }
 
    bool parseUInt16(const std::string& string, uint16_t& value, int32_t base)
    {
        value = 0;
        if (string.empty())
        {
            return true;
        }
 
        uint32_t intermd;
        if (string_utilities::toUInt32(string, intermd, base) &&
            intermd <= std::numeric_limits<uint16_t>::max())
        {
            value = static_cast<uint16_t>(intermd);
            return true;
        }
 
        return false;
    }
 
    uint32_t parseUInt32(const uint8_t* buffer)
    {
        uint32_t val;
        qi::parse(buffer, buffer + 4, qi::little_dword, val);
        return val;
    }
 
    bool parseUInt32(const std::string& string, uint32_t& value, int32_t base)
    {
        return string_utilities::toUInt32(string, value, base) || string.empty();
    }
 
    double convertUTCDoubleToSeconds(double utc_double)
    {
        uint32_t hours = static_cast<uint32_t>(utc_double) / 10000;
        uint32_t minutes = (static_cast<uint32_t>(utc_double) - hours * 10000) / 100;
        double seconds =
            utc_double - static_cast<double>(hours * 10000 + minutes * 100);
        seconds += static_cast<double>(hours * 3600 + minutes * 60);
        return seconds;
    }
 
    double convertDMSToDegrees(double dms)
    {
        uint32_t whole_degrees = static_cast<uint32_t>(dms) / 100;
        double minutes = dms - static_cast<double>(whole_degrees * 100);
        double degrees = static_cast<double>(whole_degrees) + minutes / 60.0;
        return degrees;
    }
 
    time_t convertUTCtoUnix(double utc_double)
    {
        time_t time_now = time(0);
        struct tm* timeinfo;
 
        // The function gmtime uses the value at &time_now to fill a tm structure
        // with the values that represent the corresponding time, expressed as a UTC
        // time.
        timeinfo = gmtime(&time_now);
 
        uint32_t hours = static_cast<uint32_t>(utc_double) / 10000;
        uint32_t minutes = (static_cast<uint32_t>(utc_double) - hours * 10000) / 100;
        uint32_t seconds =
            (static_cast<uint32_t>(utc_double) - hours * 10000 - minutes * 100);
 
        // Overwriting timeinfo with UTC time as extracted from utc_double..
        timeinfo->tm_hour = hours;  // hours since midnight - [0,23]
        timeinfo->tm_min = minutes; // minutes after the hour - [0,59]
        timeinfo->tm_sec = seconds; // seconds after the minute - [0,59]
 
        /* // If you are doing a simulation, add year, month and day here:
        uint32_t year; // year, starting from 1900
        uint32_t month; // months since January - [0,11]
        uint32_t day;  //day of the month - [1,31]
        timeinfo->tm_year = year;
        timeinfo->tm_mon = month;
        timeinfo->tm_mday = day;
        */
 
        // Inverse of gmtime, the latter converts time_t (Unix time) to tm (UTC time)
        time_t date = timegm(timeinfo);
 
        // ROS_DEBUG("Since 1970/01/01 %jd seconds have passed.\n", (intmax_t) date);
        return date;
    }
 
    QuaternionMsg convertEulerToQuaternion(double yaw, double pitch, double roll)
    {
        // Abbreviations for the angular functions
        double cy = std::cos(yaw * 0.5);
        double sy = std::sin(yaw * 0.5);
        double cp = std::cos(pitch * 0.5);
        double sp = std::sin(pitch * 0.5);
        double cr = std::cos(roll * 0.5);
        double sr = std::sin(roll * 0.5);
 
        QuaternionMsg q;
        q.w = cr * cp * cy + sr * sp * sy;
        q.x = sr * cp * cy - cr * sp * sy;
        q.y = cr * sp * cy + sr * cp * sy;
        q.z = cr * cp * sy - sr * sp * cy;
 
        return q;
    }
 
    std::string convertUserPeriodToRxCommand(uint32_t period_user)
    {
        std::string cmd;
 
        if (period_user == 0)
            return "OnChange";
        else if (period_user < 1000)
            return "msec" + std::to_string(period_user);
        else if (period_user <= 60000)
            return "sec" + std::to_string(period_user / 1000);
        else
            return "min" + std::to_string(period_user / 60000);
    }
 
    uint16_t getCrc(const uint8_t* buffer) { return parseUInt16(buffer + 2); }
 
    uint16_t getId(const uint8_t* buffer)
    {
        // Defines bit mask..
        // Highest three bits are for revision and rest for block number
        static uint16_t mask = 8191;
        // Bitwise AND gives us all but highest 3 bits set to zero, rest unchanged
 
        return parseUInt16(buffer + 4) & mask;
    }
 
    uint16_t getLength(const uint8_t* buffer) { return parseUInt16(buffer + 6); }
 
    uint32_t getTow(const uint8_t* buffer) { return parseUInt32(buffer + 8); }
 
    uint16_t getWnc(const uint8_t* buffer) { return parseUInt16(buffer + 12); }
} // namespace parsing_utilities