mirror of
https://github.com/f4exb/sdrangel.git
synced 2025-10-31 04:50:29 -04:00
484 lines
16 KiB
C++
484 lines
16 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
|
|
// written by Christian Daniel //
|
|
// Copyright (C) 2015-2016, 2018-2019 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
|
|
// Copyright (C) 2020-2023 Jon Beniston, M7RCE <jon@beniston.com> //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef INCLUDE_UNITS_H
|
|
#define INCLUDE_UNITS_H
|
|
|
|
#include <cmath>
|
|
#include <QString>
|
|
#include <QStringList>
|
|
#include <QRegularExpression>
|
|
#include <QDebug>
|
|
|
|
#include "export.h"
|
|
|
|
// Unit conversions
|
|
class SDRBASE_API Units
|
|
{
|
|
public:
|
|
|
|
static inline float feetToMetres(float feet)
|
|
{
|
|
return feet * 0.3048f;
|
|
}
|
|
|
|
static inline int feetToIntegerMetres(float feet)
|
|
{
|
|
return (int)std::round(feetToMetres(feet));
|
|
}
|
|
|
|
static inline float metresToFeet(float metres)
|
|
{
|
|
return metres * 3.28084f;
|
|
}
|
|
|
|
static inline int metresToIntegerFeet(float metres)
|
|
{
|
|
return (int)std::round(metresToFeet(metres));
|
|
}
|
|
|
|
static inline float nauticalMilesToMetres(float nauticalMiles)
|
|
{
|
|
return nauticalMiles * 1855.0f;
|
|
}
|
|
|
|
static inline int nauticalMilesToIntegerMetres(float nauticalMiles)
|
|
{
|
|
return (int)std::round(nauticalMilesToMetres(nauticalMiles));
|
|
}
|
|
|
|
static float knotsToKPH(float knots)
|
|
{
|
|
return knots * 1.852f;
|
|
}
|
|
|
|
static int knotsToIntegerKPH(float knots)
|
|
{
|
|
return (int)std::round(knotsToKPH(knots));
|
|
}
|
|
|
|
static float knotsToMPH(float knots)
|
|
{
|
|
return knots * 1.15078f;
|
|
}
|
|
|
|
static int knotsToIntegerMPH(float knots)
|
|
{
|
|
return (int)std::round(knotsToMPH(knots));
|
|
}
|
|
|
|
static float knotsToMetresPerSecond(float knots)
|
|
{
|
|
return knots * 0.514444f;
|
|
}
|
|
|
|
static float kmpsToKPH(float kps)
|
|
{
|
|
return kps * (60.0 * 60.0);
|
|
}
|
|
|
|
static int kmpsToIntegerKPH(float kps)
|
|
{
|
|
return (int)std::round(kmpsToKPH(kps));
|
|
}
|
|
|
|
static float feetPerMinToMetresPerSecond(float fpm)
|
|
{
|
|
return fpm * 0.00508f;
|
|
}
|
|
|
|
static int feetPerMinToIntegerMetresPerSecond(float fpm)
|
|
{
|
|
return (int)std::round(feetPerMinToMetresPerSecond(fpm));
|
|
}
|
|
|
|
template <class T>
|
|
static T degreesToRadians(T degrees)
|
|
{
|
|
return degrees * ((T)M_PI) / 180.0f;
|
|
}
|
|
|
|
template <class T>
|
|
static T radiansToDegrees(T radians)
|
|
{
|
|
return radians * 180.0f / ((T)M_PI);
|
|
}
|
|
|
|
static float fahrenheitToCelsius(float fahrenheit)
|
|
{
|
|
return (fahrenheit - 32.0f) * (5.0f/9.0f);
|
|
}
|
|
|
|
static float celsiusToKelvin(float celsius)
|
|
{
|
|
return celsius + 273.15f;
|
|
}
|
|
|
|
static float inchesToMilimetres(float inches)
|
|
{
|
|
return inches * 25.4f;
|
|
}
|
|
|
|
static float milesToKilometres(float miles)
|
|
{
|
|
return miles * 1.60934f;
|
|
}
|
|
|
|
static float degreesMinutesSecondsToDecimal(int degrees, int minutes, float seconds)
|
|
{
|
|
float dec = std::abs(degrees) + minutes * 1.0f/60.0f + seconds * 1.0f/(60.0f*60.0f);
|
|
if (degrees < 0)
|
|
return -dec;
|
|
else
|
|
return dec;
|
|
}
|
|
|
|
static float hoursMinutesSecondsToDecimal(int hours, int minutes, float seconds)
|
|
{
|
|
return hours + minutes * 1.0f/60.0f + seconds * 1.0f/(60.0f*60.0f);
|
|
}
|
|
|
|
// Also supports decimal degrees
|
|
static bool degreeMinuteAndSecondsToDecimalDegrees(const QString& string, float& degrees)
|
|
{
|
|
QRegularExpression decimal(QRegularExpression::anchoredPattern("(-?[0-9]+(\\.[0-9]+)?)"));
|
|
QRegularExpressionMatch match;
|
|
match = decimal.match(string);
|
|
if (match.hasMatch())
|
|
{
|
|
degrees = match.capturedTexts()[1].toFloat();
|
|
return true;
|
|
}
|
|
|
|
QRegularExpression dms(QRegularExpression::anchoredPattern(QString("(-)?([0-9]+)[%1d](([0-9]+)['m](([0-9]+(\\.[0-9]+)?)[\"s])?)?").arg(QChar(0xb0))));
|
|
match = dms.match(string);
|
|
if (match.hasMatch())
|
|
{
|
|
float d = 0.0f;
|
|
bool neg = false;
|
|
if (dms.captureCount() >= 1) {
|
|
neg = match.capturedTexts()[1] == "-";
|
|
}
|
|
if (dms.captureCount() >= 3) {
|
|
d = match.capturedTexts()[2].toFloat();
|
|
}
|
|
float m = 0.0f;
|
|
if (dms.captureCount() >= 5) {
|
|
m = match.capturedTexts()[4].toFloat();
|
|
}
|
|
float s = 0.0f;
|
|
if (dms.captureCount() >= 7) {
|
|
s = match.capturedTexts()[6].toFloat();
|
|
}
|
|
degrees = d + m/60.0 + s/(60.0*60.0);
|
|
if (neg) {
|
|
degrees = -degrees;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static QString decimalDegreesToDegreeMinutesAndSeconds(float decimal, int secondsFieldWidth=5)
|
|
{
|
|
double v, d, m, s;
|
|
int neg;
|
|
|
|
v = decimal;
|
|
neg = v < 0.0f;
|
|
v = fabs(v);
|
|
d = floor(v);
|
|
v -= d;
|
|
v *= 60.0;
|
|
m = floor(v);
|
|
v -= m;
|
|
v *= 60.0;
|
|
s = v;
|
|
return QString("%1%2%3%4'%5\"").arg(neg ? "-" : "").arg((int)d).arg(QChar(0xb0)).arg((int)m, 2, 10, QChar('0')).arg(s, secondsFieldWidth, 'f', 2, QChar('0'));
|
|
}
|
|
|
|
static QString decimalDegreesToDegreesAndMinutes(float decimal)
|
|
{
|
|
double v, d, m;
|
|
int neg;
|
|
|
|
v = decimal;
|
|
neg = v < 0.0f;
|
|
v = fabs(v);
|
|
d = floor(v);
|
|
v -= d;
|
|
v *= 60.0;
|
|
m = round(v);
|
|
if (m == 60)
|
|
{
|
|
if (neg) {
|
|
d--;
|
|
} else {
|
|
d++;
|
|
}
|
|
m = 0;
|
|
}
|
|
return QString("%1%2%3%4'").arg(neg ? "-" : "").arg((int)d).arg(QChar(0xb0)).arg((int)m, 2, 10, QChar('0'));
|
|
}
|
|
|
|
static QString decimalDegreesToDegrees(float decimal)
|
|
{
|
|
double v, d;
|
|
int neg;
|
|
|
|
v = decimal;
|
|
neg = v < 0.0f;
|
|
v = fabs(v);
|
|
d = round(v);
|
|
return QString("%1%2%3").arg(neg ? "-" : "").arg((int)d).arg(QChar(0xb0));
|
|
}
|
|
|
|
static QString decimalHoursToHoursMinutesAndSeconds(float decimal, int precision=2)
|
|
{
|
|
double v, h, m, s;
|
|
|
|
v = decimal;
|
|
v = fabs(v);
|
|
h = floor(v);
|
|
v -= h;
|
|
v *= 60.0;
|
|
m = floor(v);
|
|
v -= m;
|
|
v *= 60.0;
|
|
s = v;
|
|
return QString("%1h%2m%3s").arg((int)h).arg((int)m, 2, 10, QChar('0')).arg(s, 2, 'f', precision, QChar('0'));
|
|
}
|
|
|
|
// Try to convert a string to latitude and longitude. Returns false if not recognised format.
|
|
// https://en.wikipedia.org/wiki/ISO_6709 specifies a standard syntax
|
|
// We support both decimal and DMS formats
|
|
static bool stringToLatitudeAndLongitude(const QString& string, float& latitude, float& longitude, bool exact=true)
|
|
{
|
|
QRegularExpressionMatch match;
|
|
|
|
QString decimalPattern = "(-?[0-9]+(\\.[0-9]+)?) *[ ,] *(-?[0-9]+(\\.[0-9]+)?)";
|
|
if (exact) {
|
|
decimalPattern = QRegularExpression::anchoredPattern(decimalPattern);
|
|
}
|
|
QRegularExpression decimal(decimalPattern);
|
|
match = decimal.match(string);
|
|
if (match.hasMatch())
|
|
{
|
|
latitude = match.capturedTexts()[1].toFloat();
|
|
longitude = match.capturedTexts()[3].toFloat();
|
|
return true;
|
|
}
|
|
|
|
QString dmsPattern = QString("([0-9]+)[%1d]([0-9]+)['m]([0-9]+(\\.[0-9]+)?)[\"s]([NS]) *,? *([0-9]+)[%1d]([0-9]+)['m]([0-9]+(\\.[0-9]+)?)[\"s]([EW])").arg(QChar(0xb0));
|
|
if (exact) {
|
|
dmsPattern = QRegularExpression::anchoredPattern(dmsPattern);
|
|
}
|
|
QRegularExpression dms(dmsPattern);
|
|
match = dms.match(string);
|
|
if (match.hasMatch())
|
|
{
|
|
float latD = match.capturedTexts()[1].toFloat();
|
|
float latM = match.capturedTexts()[2].toFloat();
|
|
float latS = match.capturedTexts()[3].toFloat();
|
|
bool north = match.capturedTexts()[5] == "N";
|
|
float lonD = match.capturedTexts()[6].toFloat();
|
|
float lonM = match.capturedTexts()[7].toFloat();
|
|
float lonS = match.capturedTexts()[8].toFloat();
|
|
bool east = match.capturedTexts()[10] == "E";
|
|
latitude = latD + latM/60.0 + latS/(60.0*60.0);
|
|
if (!north)
|
|
latitude = -latitude;
|
|
longitude = lonD + lonM/60.0 + lonS/(60.0*60.0);
|
|
if (!east)
|
|
longitude = -longitude;
|
|
return true;
|
|
}
|
|
|
|
QString dms2Pattern = "([0-9]+)([NS])([0-9]{2})([0-9]{2}) *,?([0-9]+)([EW])([0-9]{2})([0-9]{2})";
|
|
if (exact) {
|
|
dms2Pattern = QRegularExpression::anchoredPattern(dms2Pattern);
|
|
}
|
|
QRegularExpression dms2(dms2Pattern);
|
|
match = dms2.match(string);
|
|
if (match.hasMatch())
|
|
{
|
|
float latD = match.capturedTexts()[1].toFloat();
|
|
bool north = match.capturedTexts()[2] == "N";
|
|
float latM = match.capturedTexts()[3].toFloat();
|
|
float latS = match.capturedTexts()[4].toFloat();
|
|
float lonD = match.capturedTexts()[5].toFloat();
|
|
bool east = match.capturedTexts()[6] == "E";
|
|
float lonM = match.capturedTexts()[7].toFloat();
|
|
float lonS = match.capturedTexts()[8].toFloat();
|
|
latitude = latD + latM/60.0 + latS/(60.0*60.0);
|
|
if (!north)
|
|
latitude = -latitude;
|
|
longitude = lonD + lonM/60.0 + lonS/(60.0*60.0);
|
|
if (!east)
|
|
longitude = -longitude;
|
|
return true;
|
|
}
|
|
|
|
// 512255.5900N 0024400.6105W as used on aviation charts
|
|
QString dms3Pattern = "(\\d{2})(\\d{2})((\\d{2})(\\.\\d+)?)([NS]) *,?(\\d{3})(\\d{2})((\\d{2})(\\.\\d+)?)([EW])";
|
|
if (exact) {
|
|
dms3Pattern = QRegularExpression::anchoredPattern(dms3Pattern);
|
|
}
|
|
QRegularExpression dms3(dms3Pattern);
|
|
match = dms3.match(string);
|
|
if (match.hasMatch())
|
|
{
|
|
float latD = match.capturedTexts()[1].toFloat();
|
|
float latM = match.capturedTexts()[2].toFloat();
|
|
float latS = match.capturedTexts()[3].toFloat();
|
|
bool north = match.capturedTexts()[6] == "N";
|
|
float lonD = match.capturedTexts()[7].toFloat();
|
|
float lonM = match.capturedTexts()[8].toFloat();
|
|
float lonS = match.capturedTexts()[9].toFloat();
|
|
bool east = match.capturedTexts()[12] == "E";
|
|
latitude = latD + latM/60.0 + latS/(60.0*60.0);
|
|
if (!north)
|
|
latitude = -latitude;
|
|
longitude = lonD + lonM/60.0 + lonS/(60.0*60.0);
|
|
if (!east)
|
|
longitude = -longitude;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Try to convert a string to Right Ascension (RA) and Declination. Returns false if not recognised format.
|
|
// This supports HMS/DMS or decimal.
|
|
// E.g.:
|
|
// 12 05 12.23 +17 06 21.0
|
|
// 12:05:12.23 -17:06:21.0
|
|
// 12h05m12.23s +17d06m21.0s
|
|
// 107.1324 -34.233
|
|
static bool stringToRADec(const QString& string, float& ra, float& dec)
|
|
{
|
|
QRegularExpressionMatch match;
|
|
QRegularExpression dms(QRegularExpression::anchoredPattern("([0-9]+)[ :h]([0-9]+)[ :m]([0-9]+(\\.[0-9]+)?)s? *,? *([+-]?[0-9]+)[ :d]([0-9]+)[ :m]([0-9]+(\\.[0-9]+)?)s?"));
|
|
match = dms.match(string);
|
|
if (match.hasMatch())
|
|
{
|
|
int raHours = match.capturedTexts()[1].toInt();
|
|
int raMins = match.capturedTexts()[2].toInt();
|
|
float raSecs = match.capturedTexts()[3].toFloat();
|
|
ra = raHours + raMins / 60.0f + raSecs / (60.0f * 60.0f);
|
|
qDebug() << ra << raHours << raMins << raSecs;
|
|
int decDegs = match.capturedTexts()[5].toInt();
|
|
int decMins = match.capturedTexts()[6].toInt();
|
|
float decSecs = match.capturedTexts()[7].toFloat();
|
|
bool neg = decDegs < 0;
|
|
dec = abs(decDegs) + decMins / 60.0f + decSecs / (60.0f * 60.0f);
|
|
if (neg) {
|
|
dec = -dec;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
QRegularExpression decimal(QRegularExpression::anchoredPattern("([0-9]+(\\.[0-9]+)?) *,? *([+-]?[0-9]+(\\.[0-9]+)?)"));
|
|
match = decimal.match(string);
|
|
if (match.hasMatch())
|
|
{
|
|
ra = match.capturedTexts()[1].toFloat();
|
|
dec = match.capturedTexts()[3].toFloat();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static double raToDecimal(const QString& value)
|
|
{
|
|
QRegularExpression decimal(QRegularExpression::anchoredPattern("^([0-9]+(\\.[0-9]+)?)"));
|
|
QRegularExpression hms(QRegularExpression::anchoredPattern("^([0-9]+)[ h]([0-9]+)[ m]([0-9]+(\\.[0-9]+)?)s?"));
|
|
QRegularExpressionMatch decimalMatch = decimal.match(value);
|
|
QRegularExpressionMatch hmsMatch = hms.match(value);
|
|
|
|
if (decimalMatch.hasMatch())
|
|
return decimalMatch.capturedTexts()[0].toDouble();
|
|
else if (hmsMatch.hasMatch())
|
|
{
|
|
return Units::hoursMinutesSecondsToDecimal(
|
|
hmsMatch.capturedTexts()[1].toDouble(),
|
|
hmsMatch.capturedTexts()[2].toDouble(),
|
|
hmsMatch.capturedTexts()[3].toDouble());
|
|
}
|
|
return 0.0;
|
|
}
|
|
|
|
static double decToDecimal(const QString& value)
|
|
{
|
|
QRegularExpression decimal(QRegularExpression::anchoredPattern("^(-?[0-9]+(\\.[0-9]+)?)"));
|
|
QRegularExpression dms(QRegularExpression::anchoredPattern(QString("^(-?[0-9]+)[ %1d]([0-9]+)[ 'm]([0-9]+(\\.[0-9]+)?)[\"s]?").arg(QChar(0xb0))));
|
|
QRegularExpressionMatch decimalMatch = decimal.match(value);
|
|
QRegularExpressionMatch dmsMatch = dms.match(value);
|
|
|
|
if (decimalMatch.hasMatch())
|
|
return decimalMatch.capturedTexts()[0].toDouble();
|
|
else if (dmsMatch.hasMatch())
|
|
{
|
|
return Units::degreesMinutesSecondsToDecimal(
|
|
dmsMatch.capturedTexts()[1].toDouble(),
|
|
dmsMatch.capturedTexts()[2].toDouble(),
|
|
dmsMatch.capturedTexts()[3].toDouble());
|
|
}
|
|
return 0.0;
|
|
}
|
|
|
|
static float solarFluxUnitsToJansky(float sfu)
|
|
{
|
|
return sfu * 10000.0f;
|
|
}
|
|
|
|
template <class T>
|
|
static T solarFluxUnitsToWattsPerMetrePerHertz(T sfu)
|
|
{
|
|
return sfu * 1e-22f;
|
|
}
|
|
|
|
template <class T>
|
|
static T wattsPerMetrePerHertzToSolarFluxUnits(T w)
|
|
{
|
|
return w / 1e-22f;
|
|
}
|
|
|
|
template <class T>
|
|
static T wattsPerMetrePerHertzToJansky(T w)
|
|
{
|
|
return w / 1e-26f;
|
|
}
|
|
|
|
template <class T>
|
|
static T noiseFigureToNoiseTemp(T nfdB, T refTempK=T(290.0))
|
|
{
|
|
return refTempK * (std::pow(T(10.0), nfdB/T(10.0)) - T(1.0));
|
|
}
|
|
|
|
template <class T>
|
|
static T noiseTempToNoiseFigureTo(T tempK, T refTempK=T(290.0))
|
|
{
|
|
return T(10.0) * std::log10(tempK/refTempK+T(1.0));
|
|
}
|
|
|
|
};
|
|
|
|
#endif // INCLUDE_UNITS_H
|