mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-15 21:01:45 -05:00
446749cbbb
Add support for different map types (street/satellite) and different map providers. Support finding real world addresses on the map. Add Maidenhead locator converter. Add Beacons. Allow data sources to be selected by a user. Add context menu to allow setting an object as a target, setting center frequency and adjusting display order.
89 lines
3.6 KiB
C++
89 lines
3.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2021 Jon Beniston, M7RCE //
|
|
// //
|
|
// Maidenhead locator utilities //
|
|
// //
|
|
// 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/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include <cmath>
|
|
|
|
#include <QRegExp>
|
|
|
|
#include "maidenhead.h"
|
|
|
|
// See: https://en.wikipedia.org/wiki/Maidenhead_Locator_System
|
|
|
|
QString Maidenhead::toMaidenhead(float latitude, float longitude)
|
|
{
|
|
longitude += 180.0;
|
|
latitude += 90.0;
|
|
int lon1 = floor(longitude/20);
|
|
longitude -= lon1*20;
|
|
int lat1 = floor(latitude/10);
|
|
latitude -= lat1*10;
|
|
int lon2 = floor(longitude/2);
|
|
longitude -= lon2*2;
|
|
int lat2 = floor(latitude/1);
|
|
latitude -= lat2;
|
|
int lon3 = round(longitude*12);
|
|
int lat3 = round(latitude*24);
|
|
return QString("%1%2%3%4%5%6").arg(QChar(lon1+'A')).arg(QChar(lat1+'A'))
|
|
.arg(QChar(lon2+'0')).arg(QChar(lat2+'0'))
|
|
.arg(QChar(lon3+'A')).arg(QChar(lat3+'A'));
|
|
}
|
|
|
|
bool Maidenhead::fromMaidenhead(const QString& maidenhead, float& latitude, float& longitude)
|
|
{
|
|
if (Maidenhead::isMaidenhead(maidenhead))
|
|
{
|
|
int lon1 = maidenhead[0].toUpper().toLatin1() - 'A';
|
|
int lat1 = maidenhead[1].toUpper().toLatin1() - 'A';
|
|
int lon2 = maidenhead[2].toLatin1() - '0';
|
|
int lat2 = maidenhead[3].toLatin1() - '0';
|
|
int lon3 = 0;
|
|
int lat3 = 0;
|
|
int lon4 = 0;
|
|
int lat4 = 0;
|
|
if (maidenhead.length() >= 6)
|
|
{
|
|
lon3 = maidenhead[4].toUpper().toLatin1() - 'A';
|
|
lat3 = maidenhead[5].toUpper().toLatin1() - 'A';
|
|
}
|
|
if (maidenhead.length() == 8)
|
|
{
|
|
lon4 = maidenhead[6].toLatin1() - '0';
|
|
lat4 = maidenhead[7].toLatin1() - '0';
|
|
}
|
|
longitude = lon1 * 20 + lon2 * 2 + lon3 * 2.0/24.0 + lon4 * 2.0/24.0/10; // 20=360/18
|
|
latitude = lat1 * 10 + lat2 * 1 + lat3 * 1.0/24.0 + lat4 * 1.0/24.0/10; // 10=180/18
|
|
|
|
longitude -= 180.0;
|
|
latitude -= 90.0;
|
|
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
bool Maidenhead::isMaidenhead(const QString& maidenhead)
|
|
{
|
|
int length = maidenhead.length();
|
|
if ((length != 4) && (length != 6) && (length != 8))
|
|
return false;
|
|
QRegExp re("[A-Ra-r][A-Ra-r][0-9][0-9]([A-Xa-x][A-Xa-x]([0-9][0-9])?)?");
|
|
return re.exactMatch(maidenhead);
|
|
}
|