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sdrangel/sdrbase/util/openaip.cpp
Jon Beniston 9c7aa8b333 Map Updates 
Allow OpenSkyNetwork DB, OpenAIP and OurAirports DB stuctures to be
shared by different plugins, to speed up loading.
Perform map anti-aliasing on the whole map, rather than just info boxes,
to improve rendering speed when there are many items. Add map
multisampling as a preference.
Add plotting of airspaces, airports, navaids on Map feature.
Add support for polylines and polygons to be plotted on Map feature.
Add support for images to 2D Map feature.
Add distance and name filters to Map feature.
Filter map items when zoomed out or if off screen, to improve rendering
performance.
Add UK DAB, FM and AM transmitters to Map feature.
Use labelless maps for 2D transmit maps in Map feature (same as in ADS-B
demod).
2023-02-14 14:46:08 +00:00

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2021 Jon Beniston, M7RCE //
// //
// 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 "openaip.h"
QList<Airspace *> Airspace::readXML(const QString &filename)
{
QList<Airspace *> airspaces;
QFile file(filename);
if (file.open(QIODevice::ReadOnly | QIODevice::Text))
{
QXmlStreamReader xmlReader(&file);
while(!xmlReader.atEnd() && !xmlReader.hasError())
{
if (xmlReader.readNextStartElement())
{
if (xmlReader.name() == QLatin1String("ASP"))
{
Airspace *airspace = new Airspace();
airspace->m_category = xmlReader.attributes().value("CATEGORY").toString();
while(xmlReader.readNextStartElement())
{
if (xmlReader.name() == QLatin1String("COUNTRY"))
{
airspace->m_country = xmlReader.readElementText();
}
else if (xmlReader.name() == QLatin1String("NAME"))
{
airspace->m_name = xmlReader.readElementText();
}
else if (xmlReader.name() == QLatin1String("ALTLIMIT_TOP"))
{
while(xmlReader.readNextStartElement())
{
airspace->m_top.m_reference = xmlReader.attributes().value("REFERENCE").toString();
airspace->m_top.m_altUnit = xmlReader.attributes().value("UNIT").toString();
if (xmlReader.name() == QLatin1String("ALT"))
{
airspace->m_top.m_alt = xmlReader.readElementText().toInt();
}
else
{
xmlReader.skipCurrentElement();
}
}
}
else if (xmlReader.name() == QLatin1String("ALTLIMIT_BOTTOM"))
{
while(xmlReader.readNextStartElement())
{
airspace->m_bottom.m_reference = xmlReader.attributes().value("REFERENCE").toString();
airspace->m_bottom.m_altUnit = xmlReader.attributes().value("UNIT").toString();
if (xmlReader.name() == QLatin1String("ALT"))
{
airspace->m_bottom.m_alt = xmlReader.readElementText().toInt();
}
else
{
xmlReader.skipCurrentElement();
}
}
}
else if (xmlReader.name() == QLatin1String("GEOMETRY"))
{
while(xmlReader.readNextStartElement())
{
if (xmlReader.name() == QLatin1String("POLYGON"))
{
QString pointsString = xmlReader.readElementText();
QStringList points = pointsString.split(",");
for (const auto& ps : points)
{
QStringList split = ps.trimmed().split(" ");
if (split.size() == 2)
{
QPointF pf(split[0].toDouble(), split[1].toDouble());
airspace->m_polygon.append(pf);
}
else
{
qDebug() << "Airspace::readXML - Unexpected polygon point format: " << ps;
}
}
}
else
{
xmlReader.skipCurrentElement();
}
}
}
else
{
xmlReader.skipCurrentElement();
}
}
airspace->calculatePosition();
//qDebug() << "Adding airspace: " << airspace->m_name << " " << airspace->m_category;
airspaces.append(airspace);
}
}
}
file.close();
}
else
{
// Don't warn, as many countries don't have files
//qDebug() << "Airspace::readXML: Could not open " << filename << " for reading.";
}
return airspaces;
}
QList<NavAid *> NavAid::readXML(const QString &filename)
{
int uniqueId = 1;
QList<NavAid *> navAidInfo;
QFile file(filename);
if (file.open(QIODevice::ReadOnly | QIODevice::Text))
{
QXmlStreamReader xmlReader(&file);
while(!xmlReader.atEnd() && !xmlReader.hasError())
{
if (xmlReader.readNextStartElement())
{
if (xmlReader.name() == QLatin1String("NAVAID"))
{
QStringView typeRef = xmlReader.attributes().value("TYPE");
if ((typeRef == QLatin1String("NDB"))
|| (typeRef == QLatin1String("DME"))
|| (typeRef == QLatin1String("VOR"))
|| (typeRef == QLatin1String("VOR-DME"))
|| (typeRef == QLatin1String("VORTAC"))
|| (typeRef == QLatin1String("DVOR"))
|| (typeRef == QLatin1String("DVOR-DME"))
|| (typeRef == QLatin1String("DVORTAC")))
{
QString type = typeRef.toString();
QString name;
QString id;
float lat = 0.0f;
float lon = 0.0f;
float elevation = 0.0f;
float frequency = 0.0f;
QString channel;
int range = 25;
float declination = 0.0f;
bool alignedTrueNorth = false;
while(xmlReader.readNextStartElement())
{
if (xmlReader.name() == QLatin1String("NAME"))
{
name = xmlReader.readElementText();
}
else if (xmlReader.name() == QLatin1String("ID"))
{
id = xmlReader.readElementText();
}
else if (xmlReader.name() == QLatin1String("GEOLOCATION"))
{
while(xmlReader.readNextStartElement())
{
if (xmlReader.name() == QLatin1String("LAT")) {
lat = xmlReader.readElementText().toFloat();
} else if (xmlReader.name() == QLatin1String("LON")) {
lon = xmlReader.readElementText().toFloat();
} else if (xmlReader.name() == QLatin1String("ELEV")) {
elevation = xmlReader.readElementText().toFloat();
} else {
xmlReader.skipCurrentElement();
}
}
}
else if (xmlReader.name() == QLatin1String("RADIO"))
{
while(xmlReader.readNextStartElement())
{
if (xmlReader.name() == QLatin1String("FREQUENCY"))
{
if (type == "NDB") {
frequency = xmlReader.readElementText().toFloat();
} else {
frequency = xmlReader.readElementText().toFloat() * 1000.0;
}
} else if (xmlReader.name() == QLatin1String("CHANNEL")) {
channel = xmlReader.readElementText();
} else {
xmlReader.skipCurrentElement();
}
}
}
else if (xmlReader.name() == QLatin1String("PARAMS"))
{
while(xmlReader.readNextStartElement())
{
if (xmlReader.name() == QLatin1String("RANGE")) {
range = xmlReader.readElementText().toInt();
} else if (xmlReader.name() == QLatin1String("DECLINATION")) {
declination = xmlReader.readElementText().toFloat();
} else if (xmlReader.name() == QLatin1String("ALIGNEDTOTRUENORTH")) {
alignedTrueNorth = xmlReader.readElementText() == "TRUE";
} else {
xmlReader.skipCurrentElement();
}
}
}
else
{
xmlReader.skipCurrentElement();
}
}
NavAid *navAid = new NavAid();
navAid->m_id = uniqueId++;
navAid->m_ident = id;
// Check idents conform to our filtering rules
if (navAid->m_ident.size() < 2) {
qDebug() << "NavAid::readXML: Ident less than 2 characters: " << navAid->m_ident;
} else if (navAid->m_ident.size() > 3) {
qDebug() << "NavAid::readXML: Ident greater than 3 characters: " << navAid->m_ident;
}
navAid->m_type = type;
navAid->m_name = name;
navAid->m_frequencykHz = frequency;
navAid->m_channel = channel;
navAid->m_latitude = lat;
navAid->m_longitude = lon;
navAid->m_elevation = elevation;
navAid->m_range = range;
navAid->m_magneticDeclination = declination;
navAid->m_alignedTrueNorth = alignedTrueNorth;
navAidInfo.append(navAid);
}
}
}
}
file.close();
}
else
{
// Don't warn, as many countries don't have files
//qDebug() << "NavAid::readNavAidsXML: Could not open " << filename << " for reading.";
}
return navAidInfo;
}
const QStringList OpenAIP::m_countryCodes = {
"ad",
"ae",
"af",
"ag",
"ai",
"al",
"am",
"an",
"ao",
"aq",
"ar",
"as",
"at",
"au",
"aw",
"ax",
"az",
"ba",
"bb",
"bd",
"be",
"bf",
"bg",
"bh",
"bi",
"bj",
"bl",
"bm",
"bn",
"bo",
"bq",
"br",
"bs",
"bt",
"bv",
"bw",
"by",
"bz",
"ca",
"cc",
"cd",
"cf",
"cg",
"ch",
"ci",
"ck",
"cl",
"cm",
"cn",
"co",
"cr",
"cu",
"cv",
"cw",
"cx",
"cy",
"cz",
"de",
"dj",
"dk",
"dm",
"do",
"dz",
"ec",
"ee",
"eg",
"eh",
"er",
"es",
"et",
"fi",
"fj",
"fk",
"fm",
"fo",
"fr",
"ga",
"gb",
"ge",
"gf",
"gg",
"gh",
"gi",
"gl",
"gm",
"gn",
"gp",
"gq",
"gr",
"gs",
"gt",
"gu",
"gw",
"gy",
"hk",
"hm",
"hn",
"hr",
"hu",
"id",
"ie",
"il",
"im",
"in",
"io",
"iq",
"ir",
"is",
"it",
"je",
"jm",
"jo",
"jp",
"ke",
"kg",
"kh",
"ki",
"km",
"kn",
"kp",
"kr",
"kw",
"ky",
"kz",
"la",
"lb",
"lc",
"li",
"lk",
"lr",
"ls",
"lt",
"lu",
"lv",
"ly",
"ma",
"mc",
"md",
"me",
"mf",
"mg",
"mh",
"mk",
"ml",
"mm",
"mn",
"mo",
"mp",
"mq",
"mr",
"ms",
"mt",
"mu",
"mv",
"mw",
"mx",
"my",
"mz",
"na",
"nc",
"ne",
"nf",
"ng",
"ni",
"nl",
"no",
"np",
"nr",
"nu",
"nz",
"om",
"pa",
"pe",
"pf",
"pg",
"ph",
"pk",
"pl",
"pm",
"pn",
"pr",
"ps",
"pt",
"pw",
"py",
"qa",
"re",
"ro",
"rs",
"ru",
"rw",
"sa",
"sb",
"sc",
"sd",
"se",
"sg",
"sh",
"si",
"sj",
"sk",
"sl",
"sm",
"sn",
"so",
"sr",
"ss",
"st",
"sv",
"sx",
"sy",
"sz",
"tc",
"td",
"tf",
"tg",
"th",
"tj",
"tk",
"tl",
"tm",
"tn",
"to",
"tr",
"tt",
"tv",
"tw",
"tz",
"ua",
"ug",
"um",
"us",
"uy",
"uz",
"va",
"vc",
"ve",
"vg",
"vi",
"vn",
"vu",
"wf",
"ws",
"ye",
"yt",
"za",
"zm",
"zw"
};
QSharedPointer<QList<Airspace *>> OpenAIP::m_airspaces;
QSharedPointer<QList<NavAid *>> OpenAIP::m_navAids;
QDateTime OpenAIP::m_airspacesModifiedDateTime;
QDateTime OpenAIP::m_navAidsModifiedDateTime;
OpenAIP::OpenAIP(QObject *parent) :
QObject(parent)
{
connect(&m_dlm, &HttpDownloadManager::downloadComplete, this, &OpenAIP::downloadFinished);
}
OpenAIP::~OpenAIP()
{
disconnect(&m_dlm, &HttpDownloadManager::downloadComplete, this, &OpenAIP::downloadFinished);
}
QString OpenAIP::getDataDir()
{
// Get directory to store app data in
QStringList locations = QStandardPaths::standardLocations(QStandardPaths::AppDataLocation);
// First dir is writable
return locations[0];
}
QString OpenAIP::getAirspaceFilename(int i)
{
return getAirspaceFilename(m_countryCodes[i]);
}
QString OpenAIP::getAirspaceFilename(const QString& countryCode)
{
return getDataDir() + "/" + countryCode + "_asp.xml";
}
QString OpenAIP::getAirspaceURL(int i)
{
if (i < m_countryCodes.size()) {
return QString(OPENAIP_AIRSPACE_URL).arg(m_countryCodes[i]);
} else {
return QString();
}
}
void OpenAIP::downloadAirspaces()
{
m_countryIndex = 0;
downloadAirspace();
}
void OpenAIP::downloadAirspace()
{
QString filename = getAirspaceFilename(m_countryIndex);
QString urlString = getAirspaceURL(m_countryIndex);
QUrl dbURL(urlString);
qDebug() << "OpenAIP::downloadAirspace: Downloading " << urlString;
emit downloadingURL(urlString);
m_dlm.download(dbURL, filename);
}
QString OpenAIP::getNavAidsFilename(int i)
{
return getNavAidsFilename(m_countryCodes[i]);
}
QString OpenAIP::getNavAidsFilename(const QString& countryCode)
{
return getDataDir() + "/" + countryCode + "_nav.xml";
}
QString OpenAIP::getNavAidsURL(int i)
{
if (i < m_countryCodes.size()) {
return QString(OPENAIP_NAVAIDS_URL).arg(m_countryCodes[i]);
} else {
return QString();
}
}
void OpenAIP::downloadNavAids()
{
m_countryIndex = 0;
downloadNavAid();
}
void OpenAIP::downloadNavAid()
{
QString filename = getNavAidsFilename(m_countryIndex);
QString urlString = getNavAidsURL(m_countryIndex);
QUrl dbURL(urlString);
qDebug() << "OpenAIP::downloadNavAid: Downloading " << urlString;
emit downloadingURL(urlString);
m_dlm.download(dbURL, filename);
}
void OpenAIP::downloadFinished(const QString& filename, bool success)
{
// Not all countries have corresponding files, so we should expect some errors
if (!success) {
qDebug() << "OpenAIP::downloadFinished: Failed: " << filename;
}
if (filename == getNavAidsFilename(m_countryIndex))
{
m_countryIndex++;
if (m_countryIndex < m_countryCodes.size()) {
downloadNavAid();
} else {
emit downloadNavAidsFinished();
}
}
else if (filename == getAirspaceFilename(m_countryIndex))
{
m_countryIndex++;
if (m_countryIndex < m_countryCodes.size()) {
downloadAirspace();
} else {
emit downloadAirspaceFinished();
}
}
else
{
qDebug() << "OpenAIP::downloadFinished: Unexpected filename: " << filename;
emit downloadError(QString("Unexpected filename: %1").arg(filename));
}
}
// Read airspaces for all countries
QList<Airspace *> *OpenAIP::readAirspaces()
{
QList<Airspace *> *airspaces = new QList<Airspace *>();
for (const auto& countryCode : m_countryCodes) {
airspaces->append(readAirspaces(countryCode));
}
return airspaces;
}
// Read airspaces for a single country
QList<Airspace *> OpenAIP::readAirspaces(const QString& countryCode)
{
return Airspace::readXML(getAirspaceFilename(countryCode));
}
// Read NavAids for all countries
QList<NavAid *> *OpenAIP::readNavAids()
{
QList<NavAid *> *navAids = new QList<NavAid *>();
for (const auto& countryCode : m_countryCodes) {
navAids->append(readNavAids(countryCode));
}
return navAids;
}
// Read NavAids for a single country
QList<NavAid *> OpenAIP::readNavAids(const QString& countryCode)
{
return NavAid::readXML(getNavAidsFilename(countryCode));
}
QSharedPointer<const QList<Airspace *>> OpenAIP::getAirspaces()
{
QDateTime filesDateTime = getAirspacesModifiedDateTime();
if (!m_airspaces || (filesDateTime > m_airspacesModifiedDateTime))
{
// Using shared pointer, so old object, if it exists, will be deleted, when no longer user
m_airspaces = QSharedPointer<QList<Airspace *>>(readAirspaces());
m_airspacesModifiedDateTime = filesDateTime;
}
return m_airspaces;
}
QSharedPointer<const QList<NavAid *>> OpenAIP::getNavAids()
{
QDateTime filesDateTime = getNavAidsModifiedDateTime();
if (!m_navAids || (filesDateTime > m_navAidsModifiedDateTime))
{
// Using shared pointer, so old object, if it exists, will be deleted, when no longer user
m_navAids = QSharedPointer<QList<NavAid *>>(readNavAids());
m_navAidsModifiedDateTime = filesDateTime;
}
return m_navAids;
}
// Gets the date and time the airspaces files were most recently modified
QDateTime OpenAIP::getAirspacesModifiedDateTime()
{
QDateTime dateTime;
for (const auto& countryCode : m_countryCodes)
{
QFileInfo fileInfo(getAirspaceFilename(countryCode));
QDateTime fileModifiedDateTime = fileInfo.lastModified();
if (fileModifiedDateTime > dateTime) {
dateTime = fileModifiedDateTime;
}
}
return dateTime;
}
// Gets the date and time the navaid files were most recently modified
QDateTime OpenAIP::getNavAidsModifiedDateTime()
{
QDateTime dateTime;
for (const auto& countryCode : m_countryCodes)
{
QFileInfo fileInfo(getNavAidsFilename(countryCode));
QDateTime fileModifiedDateTime = fileInfo.lastModified();
if (fileModifiedDateTime > dateTime) {
dateTime = fileModifiedDateTime;
}
}
return dateTime;
}
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