19#include "moc_qgscoordinatereferencesystem.cpp"
32#include <QRegularExpression>
52#include <proj_experimental.h>
55#include <ogr_srs_api.h>
67bool QgsCoordinateReferenceSystem::sDisableSrIdCache =
false;
71bool QgsCoordinateReferenceSystem::sDisableOgcCache =
false;
75bool QgsCoordinateReferenceSystem::sDisableProjCache =
false;
79bool QgsCoordinateReferenceSystem::sDisableWktCache =
false;
83bool QgsCoordinateReferenceSystem::sDisableSrsIdCache =
false;
87bool QgsCoordinateReferenceSystem::sDisableStringCache =
false;
96 if (
const char *proj4src = proj_as_proj_string(
QgsProjContext::get(), boundCrs.get(), PJ_PROJ_4,
nullptr ) )
98 return QString( proj4src );
115 d =
new QgsCoordinateReferenceSystemPrivate();
121 d =
new QgsCoordinateReferenceSystemPrivate();
129 , mValidationHint( srs.mValidationHint )
130 , mNativeFormat( srs.mNativeFormat )
137 mValidationHint = srs.mValidationHint;
138 mNativeFormat = srs.mNativeFormat;
148 const auto constDbs = dbs;
149 for (
const QString &db : constDbs )
151 QFileInfo myInfo( db );
152 if ( !myInfo.exists() )
162 int result = openDatabase( db, database );
163 if ( result != SQLITE_OK )
169 QString sql = QStringLiteral(
"select srs_id from tbl_srs" );
171 statement = database.
prepare( sql, rc );
175 int ret = statement.
step();
177 if ( ret == SQLITE_DONE )
183 if ( ret == SQLITE_ROW )
189 QgsMessageLog::logMessage( QObject::tr(
"SQLite error: %2\nSQL: %1" ).arg( sql, sqlite3_errmsg( database.get() ) ), QObject::tr(
"SpatiaLite" ) );
194 std::sort( results.begin(), results.end() );
250 if ( horizontalObj && verticalObj )
257 QStringList formattedErrorList;
258 for (
const QString &rawError : std::as_const( errors ) )
260 QString formattedError = rawError;
261 formattedError.replace( QLatin1String(
"proj_create_compound_crs: " ), QString() );
262 formattedErrorList.append( formattedError );
264 error = formattedErrorList.join(
'\n' );
291 QgsDebugError( QStringLiteral(
"Unexpected case reached!" ) );
298 if ( definition.isEmpty() )
302 if ( !sDisableStringCache )
304 QHash< QString, QgsCoordinateReferenceSystem >::const_iterator crsIt = sStringCache()->constFind( definition );
305 if ( crsIt != sStringCache()->constEnd() )
308 *
this = crsIt.value();
315 const thread_local QRegularExpression reCrsId( QStringLiteral(
"^(epsg|esri|osgeo|ignf|ogc|nkg|zangi|iau_2015|iau2000|postgis|internal|user)\\:(\\w+)$" ), QRegularExpression::CaseInsensitiveOption );
316 QRegularExpressionMatch match = reCrsId.match( definition );
317 if ( match.capturedStart() == 0 )
319 QString authName = match.captured( 1 ).toLower();
320 if ( authName == QLatin1String(
"epsg" ) )
324 else if ( authName == QLatin1String(
"postgis" ) )
326 const long id = match.captured( 2 ).toLong();
331 else if ( authName == QLatin1String(
"esri" )
332 || authName == QLatin1String(
"osgeo" )
333 || authName == QLatin1String(
"ignf" )
334 || authName == QLatin1String(
"zangi" )
335 || authName == QLatin1String(
"iau2000" )
336 || authName == QLatin1String(
"ogc" )
337 || authName == QLatin1String(
"nkg" )
338 || authName == QLatin1String(
"iau_2015" )
345 const long id = match.captured( 2 ).toLong();
353 const thread_local QRegularExpression reCrsStr( QStringLiteral(
"^(?:(wkt|proj4|proj)\\:)?(.+)$" ), QRegularExpression::CaseInsensitiveOption );
354 match = reCrsStr.match( definition );
355 if ( match.capturedStart() == 0 )
357 if ( match.captured( 1 ).startsWith( QLatin1String(
"proj" ), Qt::CaseInsensitive ) )
369 if ( !sDisableStringCache )
370 sStringCache()->insert( definition, *
this );
376 if ( definition.isEmpty() )
382 if ( OSRSetFromUserInput(
crs, definition.toLocal8Bit().constData() ) == OGRERR_NONE )
385 OSRDestroySpatialReference(
crs );
395 const char *configOld = CPLGetConfigOption(
"GDAL_FIX_ESRI_WKT",
"" );
396 const char *configNew =
"GEOGCS";
398 if ( strcmp( configOld,
"" ) == 0 )
400 CPLSetConfigOption(
"GDAL_FIX_ESRI_WKT", configNew );
401 if ( strcmp( configNew, CPLGetConfigOption(
"GDAL_FIX_ESRI_WKT",
"" ) ) != 0 )
403 .arg( configNew, CPLGetConfigOption(
"GDAL_FIX_ESRI_WKT",
"" ) ) );
404 QgsDebugMsgLevel( QStringLiteral(
"set GDAL_FIX_ESRI_WKT : %1" ).arg( configNew ), 4 );
408 QgsDebugMsgLevel( QStringLiteral(
"GDAL_FIX_ESRI_WKT was already set : %1" ).arg( configNew ), 4 );
418 if ( !sDisableOgcCache )
420 QHash< QString, QgsCoordinateReferenceSystem >::const_iterator crsIt = sOgcCache()->constFind(
crs );
421 if ( crsIt != sOgcCache()->constEnd() )
424 *
this = crsIt.value();
430 QString wmsCrs =
crs;
435 const QString authorityLower = authority.toLower();
437 ( authorityLower == QLatin1String(
"user" ) ||
438 authorityLower == QLatin1String(
"custom" ) ||
439 authorityLower == QLatin1String(
"qgis" ) ) )
444 if ( !sDisableOgcCache )
445 sOgcCache()->insert(
crs, *
this );
451 wmsCrs = authority +
':' + code;
455 const QString legacyKey = wmsCrs.toLower();
458 if ( it.key().compare( legacyKey, Qt::CaseInsensitive ) == 0 )
460 const QStringList parts = it.key().split(
':' );
461 const QString auth = parts.at( 0 );
462 const QString code = parts.at( 1 );
463 if ( loadFromAuthCode( auth, code ) )
466 if ( !sDisableOgcCache )
467 sOgcCache()->insert(
crs, *
this );
476 if ( !sDisableOgcCache )
477 sOgcCache()->insert(
crs, *
this );
482 if ( wmsCrs.compare( QLatin1String(
"CRS:27" ), Qt::CaseInsensitive ) == 0 ||
483 wmsCrs.compare( QLatin1String(
"OGC:CRS27" ), Qt::CaseInsensitive ) == 0 )
490 if ( wmsCrs.compare( QLatin1String(
"CRS:83" ), Qt::CaseInsensitive ) == 0 ||
491 wmsCrs.compare( QLatin1String(
"OGC:CRS83" ), Qt::CaseInsensitive ) == 0 )
498 if ( wmsCrs.compare( QLatin1String(
"CRS:84" ), Qt::CaseInsensitive ) == 0 ||
499 wmsCrs.compare( QLatin1String(
"OGC:CRS84" ), Qt::CaseInsensitive ) == 0 )
503 d->mAxisInverted =
false;
504 d->mAxisInvertedDirty =
false;
508 if ( !sDisableOgcCache )
509 sOgcCache()->insert(
crs, *
this );
516 if ( !authority.isEmpty() && !code.isEmpty() && loadFromAuthCode( authority, code ) )
519 if ( !sDisableOgcCache )
520 sOgcCache()->insert(
crs, *
this );
525 if ( !sDisableOgcCache )
535 if ( d->mIsValid || !sCustomSrsValidation )
539 if ( sCustomSrsValidation )
540 sCustomSrsValidation( *
this );
546 if ( !sDisableSrIdCache )
548 QHash< long, QgsCoordinateReferenceSystem >::const_iterator crsIt = sSrIdCache()->constFind(
id );
549 if ( crsIt != sSrIdCache()->constEnd() )
552 *
this = crsIt.value();
561 if ( it.value().endsWith( QStringLiteral(
",%1" ).arg(
id ) ) )
563 const QStringList parts = it.key().split(
':' );
564 const QString auth = parts.at( 0 );
565 const QString code = parts.at( 1 );
566 if ( loadFromAuthCode( auth, code ) )
569 if ( !sDisableSrIdCache )
570 sSrIdCache()->insert(
id, *
this );
580 if ( !sDisableSrIdCache )
581 sSrIdCache()->insert(
id, *
this );
589 if ( !sDisableSrsIdCache )
591 QHash< long, QgsCoordinateReferenceSystem >::const_iterator crsIt = sSrsIdCache()->constFind(
id );
592 if ( crsIt != sSrsIdCache()->constEnd() )
595 *
this = crsIt.value();
604 if ( it.value().startsWith( QString::number(
id ) +
',' ) )
606 const QStringList parts = it.key().split(
':' );
607 const QString auth = parts.at( 0 );
608 const QString code = parts.at( 1 );
609 if ( loadFromAuthCode( auth, code ) )
612 if ( !sDisableSrsIdCache )
613 sSrsIdCache()->insert(
id, *
this );
621 QStringLiteral(
"srs_id" ), QString::number(
id ) );
624 if ( !sDisableSrsIdCache )
625 sSrsIdCache()->insert(
id, *
this );
629bool QgsCoordinateReferenceSystem::loadFromDatabase(
const QString &db,
const QString &expression,
const QString &value )
633 QgsDebugMsgLevel(
"load CRS from " + db +
" where " + expression +
" is " + value, 3 );
635 d->mWktPreferred.clear();
637 QFileInfo myInfo( db );
638 if ( !myInfo.exists() )
648 myResult = openDatabase( db, database );
649 if ( myResult != SQLITE_OK )
666 QString mySql =
"select srs_id,description,projection_acronym,"
667 "ellipsoid_acronym,parameters,srid,auth_name||':'||auth_id,is_geo,wkt "
669 statement = database.
prepare( mySql, myResult );
672 if ( myResult == SQLITE_OK && statement.
step() == SQLITE_ROW )
677 d->mEllipsoidAcronym.clear();
679 d->mWktPreferred.clear();
682 d->mIsGeographic = statement.
columnAsText( 7 ).toInt() != 0;
684 d->mAxisInvertedDirty =
true;
686 if ( d->mSrsId >=
USER_CRS_START_ID && ( d->mAuthId.isEmpty() || d->mAuthId == QChar(
':' ) ) )
688 d->mAuthId = QStringLiteral(
"USER:%1" ).arg( d->mSrsId );
690 else if ( !d->mAuthId.startsWith( QLatin1String(
"USER:" ), Qt::CaseInsensitive ) )
692 QStringList parts = d->mAuthId.split(
':' );
693 QString auth = parts.at( 0 );
694 QString code = parts.at( 1 );
701 d->mIsValid = d->hasPj();
707 if ( !wkt.isEmpty() )
715 setProjString( d->mProj4 );
725void QgsCoordinateReferenceSystem::removeFromCacheObjectsBelongingToCurrentThread(
PJ_CONTEXT *pj_context )
732 if ( !sDisableSrIdCache )
735 if ( !sDisableSrIdCache )
737 for (
auto it = sSrIdCache()->begin(); it != sSrIdCache()->end(); )
739 auto &v = it.value();
740 if ( v.d->removeObjectsBelongingToCurrentThread( pj_context ) )
741 it = sSrIdCache()->erase( it );
747 if ( !sDisableOgcCache )
750 if ( !sDisableOgcCache )
752 for (
auto it = sOgcCache()->begin(); it != sOgcCache()->end(); )
754 auto &v = it.value();
755 if ( v.d->removeObjectsBelongingToCurrentThread( pj_context ) )
756 it = sOgcCache()->erase( it );
762 if ( !sDisableProjCache )
765 if ( !sDisableProjCache )
767 for (
auto it = sProj4Cache()->begin(); it != sProj4Cache()->end(); )
769 auto &v = it.value();
770 if ( v.d->removeObjectsBelongingToCurrentThread( pj_context ) )
771 it = sProj4Cache()->erase( it );
777 if ( !sDisableWktCache )
780 if ( !sDisableWktCache )
782 for (
auto it = sWktCache()->begin(); it != sWktCache()->end(); )
784 auto &v = it.value();
785 if ( v.d->removeObjectsBelongingToCurrentThread( pj_context ) )
786 it = sWktCache()->erase( it );
792 if ( !sDisableSrsIdCache )
795 if ( !sDisableSrsIdCache )
797 for (
auto it = sSrsIdCache()->begin(); it != sSrsIdCache()->end(); )
799 auto &v = it.value();
800 if ( v.d->removeObjectsBelongingToCurrentThread( pj_context ) )
801 it = sSrsIdCache()->erase( it );
807 if ( !sDisableStringCache )
810 if ( !sDisableStringCache )
812 for (
auto it = sStringCache()->begin(); it != sStringCache()->end(); )
814 auto &v = it.value();
815 if ( v.d->removeObjectsBelongingToCurrentThread( pj_context ) )
816 it = sStringCache()->erase( it );
826 if ( d->mAxisInvertedDirty )
829 d->mAxisInvertedDirty =
false;
832 return d->mAxisInverted;
849 const thread_local QMap< Qgis::CrsAxisDirection, QString > mapping =
892 QList< Qgis::CrsAxisDirection > res;
893 const int axisCount = proj_cs_get_axis_count( context, pjCs.get() );
896 res.reserve( axisCount );
898 for (
int i = 0; i < axisCount; ++i )
900 const char *outDirection =
nullptr;
901 proj_cs_get_axis_info( context, pjCs.get(), i,
911 const thread_local QRegularExpression rx( QStringLiteral(
"([^\\s]+).*" ) );
912 const QRegularExpressionMatch match = rx.match( QString( outDirection ) );
913 if ( !match.hasMatch() )
916 const QString direction = match.captured( 1 );
918 for (
auto it = mapping.constBegin(); it != mapping.constEnd(); ++it )
920 if ( it.value().compare( direction, Qt::CaseInsensitive ) == 0 )
935 return createFromWktInternal( wkt, QString() );
938bool QgsCoordinateReferenceSystem::createFromWktInternal(
const QString &wkt,
const QString &description )
946 if ( !sDisableWktCache )
948 QHash< QString, QgsCoordinateReferenceSystem >::const_iterator crsIt = sWktCache()->constFind( wkt );
949 if ( crsIt != sWktCache()->constEnd() )
952 *
this = crsIt.value();
954 if ( !
description.isEmpty() && d->mDescription.isEmpty() )
959 sWktCache()->insert( wkt, *
this );
968 d->mWktPreferred.clear();
971 QgsDebugMsgLevel( QStringLiteral(
"theWkt is uninitialized, operation failed" ), 4 );
976 QgsCoordinateReferenceSystem::RecordMap record = getRecord(
"select * from tbl_srs where wkt=" +
QgsSqliteUtils::quotedString( wkt ) +
" order by deprecated" );
977 if ( !record.empty() )
979 long srsId = record[QStringLiteral(
"srs_id" )].toLong();
992 if ( d->mSrsId == 0 )
995 long id = matchToUserCrs();
1004 if ( !sDisableWktCache )
1005 sWktCache()->insert( wkt, *
this );
1023 if ( projString.isEmpty() )
1028 if ( projString.trimmed().isEmpty() )
1030 d->mIsValid =
false;
1032 d->mWktPreferred.clear();
1037 if ( !sDisableProjCache )
1039 QHash< QString, QgsCoordinateReferenceSystem >::const_iterator crsIt = sProj4Cache()->constFind( projString );
1040 if ( crsIt != sProj4Cache()->constEnd() )
1043 *
this = crsIt.value();
1057 QString myProj4String = projString.trimmed();
1058 myProj4String.remove( QStringLiteral(
"+type=crs" ) );
1059 myProj4String = myProj4String.trimmed();
1061 d->mIsValid =
false;
1062 d->mWktPreferred.clear();
1067 const QString projCrsString = myProj4String + ( myProj4String.contains( QStringLiteral(
"+type=crs" ) ) ? QString() : QStringLiteral(
" +type=crs" ) );
1075 const QString
authid = QStringLiteral(
"%1:%2" ).arg( authName, authCode );
1079 if ( !sDisableProjCache )
1080 sProj4Cache()->insert( projString, *
this );
1087 QgsCoordinateReferenceSystem::RecordMap myRecord = getRecord(
"select * from tbl_srs where parameters=" +
QgsSqliteUtils::quotedString( myProj4String ) +
" order by deprecated" );
1089 if ( !myRecord.empty() )
1091 id = myRecord[QStringLiteral(
"srs_id" )].toLong();
1100 setProjString( myProj4String );
1103 id = matchToUserCrs();
1112 setProjString( myProj4String );
1116 if ( !sDisableProjCache )
1117 sProj4Cache()->insert( projString, *
this );
1123QgsCoordinateReferenceSystem::RecordMap QgsCoordinateReferenceSystem::getRecord(
const QString &sql )
1125 QString myDatabaseFileName;
1126 QgsCoordinateReferenceSystem::RecordMap myMap;
1127 QString myFieldName;
1128 QString myFieldValue;
1135 QFileInfo myInfo( myDatabaseFileName );
1136 if ( !myInfo.exists() )
1138 QgsDebugError(
"failed : " + myDatabaseFileName +
" does not exist!" );
1143 myResult = openDatabase( myDatabaseFileName, database );
1144 if ( myResult != SQLITE_OK )
1149 statement = database.
prepare( sql, myResult );
1151 if ( myResult == SQLITE_OK && statement.
step() == SQLITE_ROW )
1155 for (
int myColNo = 0; myColNo < myColumnCount; myColNo++ )
1157 myFieldName = statement.
columnName( myColNo );
1159 myMap[myFieldName] = myFieldValue;
1161 if ( statement.
step() != SQLITE_DONE )
1163 QgsDebugMsgLevel( QStringLiteral(
"Multiple records found in srs.db" ), 4 );
1172 if ( myMap.empty() )
1175 QFileInfo myFileInfo;
1176 myFileInfo.setFile( myDatabaseFileName );
1177 if ( !myFileInfo.exists() )
1179 QgsDebugError( QStringLiteral(
"user qgis.db not found" ) );
1184 myResult = openDatabase( myDatabaseFileName, database );
1185 if ( myResult != SQLITE_OK )
1190 statement = database.
prepare( sql, myResult );
1192 if ( myResult == SQLITE_OK && statement.
step() == SQLITE_ROW )
1196 for (
int myColNo = 0; myColNo < myColumnCount; myColNo++ )
1198 myFieldName = statement.
columnName( myColNo );
1200 myMap[myFieldName] = myFieldValue;
1203 if ( statement.
step() != SQLITE_DONE )
1205 QgsDebugMsgLevel( QStringLiteral(
"Multiple records found in srs.db" ), 4 );
1236 if ( d->mDescription.isNull() )
1242 return d->mDescription;
1249 if ( !
authid().isEmpty() )
1259 id =
isValid() ? QObject::tr(
"Custom CRS" ) : QObject::tr(
"Unknown CRS" );
1261 id = QObject::tr(
"Custom CRS: %1" ).arg(
1264 else if ( !
toProj().isEmpty() )
1267 if ( !
id.isEmpty() && !std::isnan( d->mCoordinateEpoch ) )
1268 id += QStringLiteral(
" @ %1" ).arg(
qgsDoubleToString( d->mCoordinateEpoch, 3 ) );
1275 if ( d->mProjectionAcronym.isNull() )
1281 return d->mProjectionAcronym;
1287 if ( d->mEllipsoidAcronym.isNull() )
1289 if (
PJ *obj = d->threadLocalProjObject() )
1294 const QString ellipsoidAuthName( proj_get_id_auth_name( ellipsoid.get(), 0 ) );
1295 const QString ellipsoidAuthCode( proj_get_id_code( ellipsoid.get(), 0 ) );
1296 if ( !ellipsoidAuthName.isEmpty() && !ellipsoidAuthCode.isEmpty() )
1297 d->mEllipsoidAcronym = QStringLiteral(
"%1:%2" ).arg( ellipsoidAuthName, ellipsoidAuthCode );
1300 double semiMajor, semiMinor, invFlattening;
1301 int semiMinorComputed = 0;
1302 if ( proj_ellipsoid_get_parameters(
QgsProjContext::get(), ellipsoid.get(), &semiMajor, &semiMinor, &semiMinorComputed, &invFlattening ) )
1304 d->mEllipsoidAcronym = QStringLiteral(
"PARAMETER:%1:%2" ).arg(
qgsDoubleToString( semiMajor ),
1309 d->mEllipsoidAcronym.clear();
1314 return d->mEllipsoidAcronym;
1318 return d->mEllipsoidAcronym;
1332 if ( d->mProj4.isEmpty() )
1334 if (
PJ *obj = d->threadLocalProjObject() )
1340 return d->mProj4.trimmed();
1346 switch ( d->mProjType )
1348 case PJ_TYPE_UNKNOWN:
1351 case PJ_TYPE_ELLIPSOID:
1352 case PJ_TYPE_PRIME_MERIDIAN:
1353 case PJ_TYPE_GEODETIC_REFERENCE_FRAME:
1354 case PJ_TYPE_DYNAMIC_GEODETIC_REFERENCE_FRAME:
1355 case PJ_TYPE_VERTICAL_REFERENCE_FRAME:
1356 case PJ_TYPE_DYNAMIC_VERTICAL_REFERENCE_FRAME:
1357 case PJ_TYPE_DATUM_ENSEMBLE:
1358 case PJ_TYPE_CONVERSION:
1359 case PJ_TYPE_TRANSFORMATION:
1360 case PJ_TYPE_CONCATENATED_OPERATION:
1361 case PJ_TYPE_OTHER_COORDINATE_OPERATION:
1362 case PJ_TYPE_TEMPORAL_DATUM:
1363 case PJ_TYPE_ENGINEERING_DATUM:
1364 case PJ_TYPE_PARAMETRIC_DATUM:
1368 case PJ_TYPE_GEOGRAPHIC_CRS:
1372 case PJ_TYPE_GEODETIC_CRS:
1374 case PJ_TYPE_GEOCENTRIC_CRS:
1376 case PJ_TYPE_GEOGRAPHIC_2D_CRS:
1378 case PJ_TYPE_GEOGRAPHIC_3D_CRS:
1380 case PJ_TYPE_VERTICAL_CRS:
1382 case PJ_TYPE_PROJECTED_CRS:
1384 case PJ_TYPE_COMPOUND_CRS:
1386 case PJ_TYPE_TEMPORAL_CRS:
1388 case PJ_TYPE_ENGINEERING_CRS:
1390 case PJ_TYPE_BOUND_CRS:
1392 case PJ_TYPE_OTHER_CRS:
1394#if PROJ_VERSION_MAJOR>9 || (PROJ_VERSION_MAJOR==9 && PROJ_VERSION_MINOR>=2)
1395 case PJ_TYPE_DERIVED_PROJECTED_CRS:
1397 case PJ_TYPE_COORDINATE_METADATA:
1411 return proj_is_deprecated( pj );
1416 return d->mIsGeographic;
1434#if PROJ_VERSION_MAJOR>8 || (PROJ_VERSION_MAJOR==8 && PROJ_VERSION_MINOR>=1)
1437 return QString( proj_get_celestial_body_name( context, pj ) );
1439 throw QgsNotSupportedException( QObject::tr(
"Retrieving celestial body requires a QGIS build based on PROJ 8.1 or later" ) );
1445 if ( d->mCoordinateEpoch == epoch )
1451 d->mCoordinateEpoch = epoch;
1452 d->setPj( std::move( clone ) );
1457 return d->mCoordinateEpoch;
1469#if PROJ_VERSION_MAJOR>=8
1477 res.mName = QString( proj_get_name( ensemble.get() ) );
1478 res.mAuthority = QString( proj_get_id_auth_name( ensemble.get(), 0 ) );
1479 res.mCode = QString( proj_get_id_code( ensemble.get(), 0 ) );
1480 res.mRemarks = QString( proj_get_remarks( ensemble.get() ) );
1481 res.mScope = QString( proj_get_scope( ensemble.get() ) );
1482 res.mAccuracy = proj_datum_ensemble_get_accuracy( context, ensemble.get() );
1484 const int memberCount = proj_datum_ensemble_get_member_count( context, ensemble.get() );
1485 for (
int i = 0; i < memberCount; ++i )
1492 details.mName = QString( proj_get_name( member.get() ) );
1493 details.mAuthority = QString( proj_get_id_auth_name( member.get(), 0 ) );
1494 details.mCode = QString( proj_get_id_code( member.get(), 0 ) );
1495 details.mRemarks = QString( proj_get_remarks( member.get() ) );
1496 details.mScope = QString( proj_get_scope( member.get() ) );
1498 res.mMembers << details;
1502 throw QgsNotSupportedException( QObject::tr(
"Calculating datum ensembles requires a QGIS build based on PROJ 8.0 or later" ) );
1511 QString projString =
toProj();
1512 projString.replace( QLatin1String(
"+type=crs" ), QString() );
1515 if ( !transformation )
1518 PJ_COORD coord = proj_coord( 0, 0, 0, HUGE_VAL );
1519 coord.uv.u = point.
x() * M_PI / 180.0;
1520 coord.uv.v = point.
y() * M_PI / 180.0;
1522 proj_errno_reset( transformation.get() );
1523 const PJ_FACTORS pjFactors = proj_factors( transformation.get(), coord );
1524 if ( proj_errno( transformation.get() ) )
1529 res.mIsValid =
true;
1530 res.mMeridionalScale = pjFactors.meridional_scale;
1531 res.mParallelScale = pjFactors.parallel_scale;
1532 res.mArealScale = pjFactors.areal_scale;
1533 res.mAngularDistortion = pjFactors.angular_distortion;
1534 res.mMeridianParallelAngle = pjFactors.meridian_parallel_angle * 180 / M_PI;
1535 res.mMeridianConvergence = pjFactors.meridian_convergence * 180 / M_PI;
1536 res.mTissotSemimajor = pjFactors.tissot_semimajor;
1537 res.mTissotSemiminor = pjFactors.tissot_semiminor;
1538 res.mDxDlam = pjFactors.dx_dlam;
1539 res.mDxDphi = pjFactors.dx_dphi;
1540 res.mDyDlam = pjFactors.dy_dlam;
1541 res.mDyDphi = pjFactors.dy_dphi;
1553 QString projString =
toProj();
1554 projString.replace( QLatin1String(
"+type=crs" ), QString() );
1555 if ( projString.isEmpty() )
1559 if ( !transformation )
1562 PJ_PROJ_INFO info = proj_pj_info( transformation.get() );
1577 return d->mMapUnits;
1585 PJ *obj = d->threadLocalProjObject();
1590 double southLat = 0;
1592 double northLat = 0;
1595 &westLon, &southLat, &eastLon, &northLat,
nullptr ) )
1610 const auto parts {
authid().split(
':' ) };
1611 if ( parts.length() == 2 )
1613 if ( parts[0] == QLatin1String(
"EPSG" ) )
1614 return QStringLiteral(
"http://www.opengis.net/def/crs/EPSG/0/%1" ).arg( parts[1] ) ;
1615 else if ( parts[0] == QLatin1String(
"OGC" ) )
1617 return QStringLiteral(
"http://www.opengis.net/def/crs/OGC/1.3/%1" ).arg( parts[1] ) ;
1633 const auto parts {
authid().split(
':' ) };
1634 if ( parts.length() == 2 )
1636 if ( parts[0] == QLatin1String(
"EPSG" ) )
1637 return QStringLiteral(
"urn:ogc:def:crs:EPSG::%1" ).arg( parts[1] );
1638 else if ( parts[0] == QLatin1String(
"OGC" ) )
1640 return QStringLiteral(
"urn:ogc:def:crs:OGC:1.3:%1" ).arg( parts[1] );
1671void QgsCoordinateReferenceSystem::setProjString(
const QString &proj4String )
1674 d->mProj4 = proj4String;
1675 d->mWktPreferred.clear();
1678 QString trimmed = proj4String.trimmed();
1680 trimmed += QLatin1String(
" +type=crs" );
1690 const int errNo = proj_context_errno( ctx );
1691 QgsDebugError( QStringLiteral(
"proj string rejected: %1" ).arg( proj_errno_string( errNo ) ) );
1693 d->mIsValid =
false;
1697 d->mEllipsoidAcronym.clear();
1704bool QgsCoordinateReferenceSystem::setWktString(
const QString &wkt )
1707 d->mIsValid =
false;
1708 d->mWktPreferred.clear();
1710 PROJ_STRING_LIST warnings =
nullptr;
1711 PROJ_STRING_LIST grammarErrors =
nullptr;
1719 QgsDebugMsgLevel( QStringLiteral(
"\n---------------------------------------------------------------" ), 2 );
1720 QgsDebugMsgLevel( QStringLiteral(
"This CRS could *** NOT *** be set from the supplied Wkt " ), 2 );
1722 for (
auto iter = warnings; iter && *iter; ++iter )
1724 for (
auto iter = grammarErrors; iter && *iter; ++iter )
1726 QgsDebugMsgLevel( QStringLiteral(
"---------------------------------------------------------------\n" ), 2 );
1728 proj_string_list_destroy( warnings );
1729 proj_string_list_destroy( grammarErrors );
1735 if ( !sDisableWktCache )
1736 sWktCache()->insert( wkt, *
this );
1743 QString authName( proj_get_id_auth_name( d->threadLocalProjObject(), 0 ) );
1744 QString authCode( proj_get_id_code( d->threadLocalProjObject(), 0 ) );
1746 if ( authName.isEmpty() || authCode.isEmpty() )
1752 if ( !authName.isEmpty() && !authCode.isEmpty() )
1754 if ( loadFromAuthCode( authName, authCode ) )
1757 if ( !sDisableWktCache )
1758 sWktCache()->insert( wkt, *
this );
1766 d->mDescription = QString( proj_get_name( d->threadLocalProjObject() ) );
1774void QgsCoordinateReferenceSystem::setMapUnits()
1801 if ( !coordinateSystem )
1807 const int axisCount = proj_cs_get_axis_count( context, coordinateSystem.get() );
1808 if ( axisCount > 0 )
1810 const char *outUnitName =
nullptr;
1812 proj_cs_get_axis_info( context, coordinateSystem.get(), 0,
1821 const QString unitName( outUnitName );
1825 if ( unitName.compare( QLatin1String(
"degree" ), Qt::CaseInsensitive ) == 0 ||
1826 unitName.compare( QLatin1String(
"degree minute second" ), Qt::CaseInsensitive ) == 0 ||
1827 unitName.compare( QLatin1String(
"degree minute second hemisphere" ), Qt::CaseInsensitive ) == 0 ||
1828 unitName.compare( QLatin1String(
"degree minute" ), Qt::CaseInsensitive ) == 0 ||
1829 unitName.compare( QLatin1String(
"degree hemisphere" ), Qt::CaseInsensitive ) == 0 ||
1830 unitName.compare( QLatin1String(
"degree minute hemisphere" ), Qt::CaseInsensitive ) == 0 ||
1831 unitName.compare( QLatin1String(
"hemisphere degree" ), Qt::CaseInsensitive ) == 0 ||
1832 unitName.compare( QLatin1String(
"hemisphere degree minute" ), Qt::CaseInsensitive ) == 0 ||
1833 unitName.compare( QLatin1String(
"hemisphere degree minute second" ), Qt::CaseInsensitive ) == 0 ||
1834 unitName.compare( QLatin1String(
"degree (supplier to define representation)" ), Qt::CaseInsensitive ) == 0 )
1836 else if ( unitName.compare( QLatin1String(
"metre" ), Qt::CaseInsensitive ) == 0
1837 || unitName.compare( QLatin1String(
"m" ), Qt::CaseInsensitive ) == 0
1838 || unitName.compare( QLatin1String(
"meter" ), Qt::CaseInsensitive ) == 0 )
1840 else if ( unitName.compare( QLatin1String(
"US survey foot" ), Qt::CaseInsensitive ) == 0 )
1842 else if ( unitName.compare( QLatin1String(
"foot" ), Qt::CaseInsensitive ) == 0 )
1844 else if ( unitName.compare( QLatin1String(
"British yard (Sears 1922)" ), Qt::CaseInsensitive ) == 0 )
1846 else if ( unitName.compare( QLatin1String(
"British yard (Sears 1922 truncated)" ), Qt::CaseInsensitive ) == 0 )
1848 else if ( unitName.compare( QLatin1String(
"British foot (Sears 1922)" ), Qt::CaseInsensitive ) == 0 )
1850 else if ( unitName.compare( QLatin1String(
"British foot (Sears 1922 truncated)" ), Qt::CaseInsensitive ) == 0 )
1852 else if ( unitName.compare( QLatin1String(
"British chain (Sears 1922)" ), Qt::CaseInsensitive ) == 0 )
1854 else if ( unitName.compare( QLatin1String(
"British chain (Sears 1922 truncated)" ), Qt::CaseInsensitive ) == 0 )
1856 else if ( unitName.compare( QLatin1String(
"British link (Sears 1922)" ), Qt::CaseInsensitive ) == 0 )
1858 else if ( unitName.compare( QLatin1String(
"British link (Sears 1922 truncated)" ), Qt::CaseInsensitive ) == 0 )
1860 else if ( unitName.compare( QLatin1String(
"British yard (Benoit 1895 A)" ), Qt::CaseInsensitive ) == 0 )
1862 else if ( unitName.compare( QLatin1String(
"British foot (Benoit 1895 A)" ), Qt::CaseInsensitive ) == 0 )
1864 else if ( unitName.compare( QLatin1String(
"British chain (Benoit 1895 A)" ), Qt::CaseInsensitive ) == 0 )
1866 else if ( unitName.compare( QLatin1String(
"British link (Benoit 1895 A)" ), Qt::CaseInsensitive ) == 0 )
1868 else if ( unitName.compare( QLatin1String(
"British yard (Benoit 1895 B)" ), Qt::CaseInsensitive ) == 0 )
1870 else if ( unitName.compare( QLatin1String(
"British foot (Benoit 1895 B)" ), Qt::CaseInsensitive ) == 0 )
1872 else if ( unitName.compare( QLatin1String(
"British chain (Benoit 1895 B)" ), Qt::CaseInsensitive ) == 0 )
1874 else if ( unitName.compare( QLatin1String(
"British link (Benoit 1895 B)" ), Qt::CaseInsensitive ) == 0 )
1876 else if ( unitName.compare( QLatin1String(
"British foot (1865)" ), Qt::CaseInsensitive ) == 0 )
1878 else if ( unitName.compare( QLatin1String(
"British foot (1936)" ), Qt::CaseInsensitive ) == 0 )
1880 else if ( unitName.compare( QLatin1String(
"Indian foot" ), Qt::CaseInsensitive ) == 0 )
1882 else if ( unitName.compare( QLatin1String(
"Indian foot (1937)" ), Qt::CaseInsensitive ) == 0 )
1884 else if ( unitName.compare( QLatin1String(
"Indian foot (1962)" ), Qt::CaseInsensitive ) == 0 )
1886 else if ( unitName.compare( QLatin1String(
"Indian foot (1975)" ), Qt::CaseInsensitive ) == 0 )
1888 else if ( unitName.compare( QLatin1String(
"Indian yard" ), Qt::CaseInsensitive ) == 0 )
1890 else if ( unitName.compare( QLatin1String(
"Indian yard (1937)" ), Qt::CaseInsensitive ) == 0 )
1892 else if ( unitName.compare( QLatin1String(
"Indian yard (1962)" ), Qt::CaseInsensitive ) == 0 )
1894 else if ( unitName.compare( QLatin1String(
"Indian yard (1975)" ), Qt::CaseInsensitive ) == 0 )
1896 else if ( unitName.compare( QLatin1String(
"Gold Coast foot" ), Qt::CaseInsensitive ) == 0 )
1898 else if ( unitName.compare( QLatin1String(
"Clarke's foot" ), Qt::CaseInsensitive ) == 0 )
1900 else if ( unitName.compare( QLatin1String(
"Clarke's yard" ), Qt::CaseInsensitive ) == 0 )
1902 else if ( unitName.compare( QLatin1String(
"Clarke's chain" ), Qt::CaseInsensitive ) == 0 )
1904 else if ( unitName.compare( QLatin1String(
"Clarke's link" ), Qt::CaseInsensitive ) == 0 )
1906 else if ( unitName.compare( QLatin1String(
"kilometre" ), Qt::CaseInsensitive ) == 0 )
1908 else if ( unitName.compare( QLatin1String(
"centimetre" ), Qt::CaseInsensitive ) == 0 )
1910 else if ( unitName.compare( QLatin1String(
"millimetre" ), Qt::CaseInsensitive ) == 0 )
1912 else if ( unitName.compare( QLatin1String(
"Statute mile" ), Qt::CaseInsensitive ) == 0 )
1914 else if ( unitName.compare( QLatin1String(
"nautical mile" ), Qt::CaseInsensitive ) == 0 )
1916 else if ( unitName.compare( QLatin1String(
"yard" ), Qt::CaseInsensitive ) == 0 )
1918 else if ( unitName.compare( QLatin1String(
"fathom" ), Qt::CaseInsensitive ) == 0 )
1920 else if ( unitName.compare( QLatin1String(
"US survey chain" ), Qt::CaseInsensitive ) == 0 )
1922 else if ( unitName.compare( QLatin1String(
"chain" ), Qt::CaseInsensitive ) == 0 )
1924 else if ( unitName.compare( QLatin1String(
"link" ), Qt::CaseInsensitive ) == 0 )
1926 else if ( unitName.compare( QLatin1String(
"US survey link" ), Qt::CaseInsensitive ) == 0 )
1928 else if ( unitName.compare( QLatin1String(
"US survey mile" ), Qt::CaseInsensitive ) == 0 )
1930 else if ( unitName.compare( QLatin1String(
"German legal metre" ), Qt::CaseInsensitive ) == 0 )
1947 if ( d->mEllipsoidAcronym.isNull() || d->mProjectionAcronym.isNull()
1950 QgsDebugMsgLevel(
"QgsCoordinateReferenceSystem::findMatchingProj will only "
1951 "work if prj acr ellipsoid acr and proj4string are set"
1952 " and the current projection is valid!", 4 );
1962 QString mySql = QString(
"select srs_id,parameters from tbl_srs where "
1963 "projection_acronym=%1 and ellipsoid_acronym=%2 order by deprecated" )
1970 myResult = openDatabase( myDatabaseFileName, database );
1971 if ( myResult != SQLITE_OK )
1976 statement = database.
prepare( mySql, myResult );
1977 if ( myResult == SQLITE_OK )
1980 while ( statement.
step() == SQLITE_ROW )
1984 if (
toProj() == myProj4String.trimmed() )
1986 return mySrsId.toLong();
1997 myResult = openDatabase( myDatabaseFileName, database );
1998 if ( myResult != SQLITE_OK )
2003 statement = database.
prepare( mySql, myResult );
2005 if ( myResult == SQLITE_OK )
2007 while ( statement.
step() == SQLITE_ROW )
2011 if (
toProj() == myProj4String.trimmed() )
2013 return mySrsId.toLong();
2027 if ( !d->mIsValid && !srs.d->mIsValid )
2030 if ( !d->mIsValid || !srs.d->mIsValid )
2038 if ( isUser != otherIsUser )
2042 if ( !isUser && ( !d->mAuthId.isEmpty() || !srs.d->mAuthId.isEmpty() ) )
2043 return d->mAuthId == srs.d->mAuthId;
2050 return !( *
this == srs );
2055 if (
PJ *obj = d->threadLocalProjObject() )
2058 if ( isDefaultPreferredFormat && !d->mWktPreferred.isEmpty() )
2061 return d->mWktPreferred;
2064 PJ_WKT_TYPE
type = PJ_WKT1_GDAL;
2068 type = PJ_WKT1_GDAL;
2071 type = PJ_WKT1_ESRI;
2074 type = PJ_WKT2_2015;
2077 type = PJ_WKT2_2015_SIMPLIFIED;
2080 type = PJ_WKT2_2019;
2083 type = PJ_WKT2_2019_SIMPLIFIED;
2087 const QByteArray multiLineOption = QStringLiteral(
"MULTILINE=%1" ).arg( multiline ? QStringLiteral(
"YES" ) : QStringLiteral(
"NO" ) ).toLocal8Bit();
2088 const QByteArray indentatationWidthOption = QStringLiteral(
"INDENTATION_WIDTH=%1" ).arg( multiline ? QString::number( indentationWidth ) : QStringLiteral(
"0" ) ).toLocal8Bit();
2089 const char *
const options[] = {multiLineOption.constData(), indentatationWidthOption.constData(),
nullptr};
2092 if ( isDefaultPreferredFormat )
2095 d->mWktPreferred = res;
2107 QDomNode srsNode = node.namedItem( QStringLiteral(
"spatialrefsys" ) );
2109 if ( ! srsNode.isNull() )
2111 bool initialized =
false;
2114 long srsid = srsNode.namedItem( QStringLiteral(
"srsid" ) ).toElement().text().toLong( &ok );
2120 node = srsNode.namedItem( QStringLiteral(
"authid" ) );
2121 if ( !node.isNull() )
2132 node = srsNode.namedItem( QStringLiteral(
"epsg" ) );
2133 if ( !node.isNull() )
2151 const QString
description = srsNode.namedItem( QStringLiteral(
"description" ) ).toElement().text();
2153 const QString wkt = srsNode.namedItem( QStringLiteral(
"wkt" ) ).toElement().text();
2154 initialized = createFromWktInternal( wkt,
description );
2159 node = srsNode.namedItem( QStringLiteral(
"proj4" ) );
2160 const QString proj4 = node.toElement().text();
2167 node = srsNode.namedItem( QStringLiteral(
"proj4" ) );
2168 const QString proj4 = node.toElement().text();
2169 if ( !proj4.trimmed().isEmpty() )
2170 setProjString( node.toElement().text() );
2172 node = srsNode.namedItem( QStringLiteral(
"srsid" ) );
2173 d->mSrsId = node.toElement().text().toLong();
2175 node = srsNode.namedItem( QStringLiteral(
"srid" ) );
2176 d->mSRID = node.toElement().text().toLong();
2178 node = srsNode.namedItem( QStringLiteral(
"authid" ) );
2179 d->mAuthId = node.toElement().text();
2181 node = srsNode.namedItem( QStringLiteral(
"description" ) );
2182 d->mDescription = node.toElement().text();
2184 node = srsNode.namedItem( QStringLiteral(
"projectionacronym" ) );
2185 d->mProjectionAcronym = node.toElement().text();
2187 node = srsNode.namedItem( QStringLiteral(
"ellipsoidacronym" ) );
2188 d->mEllipsoidAcronym = node.toElement().text();
2190 node = srsNode.namedItem( QStringLiteral(
"geographicflag" ) );
2191 d->mIsGeographic = node.toElement().text() == QLatin1String(
"true" );
2193 d->mWktPreferred.clear();
2199 const QString epoch = srsNode.toElement().attribute( QStringLiteral(
"coordinateEpoch" ) );
2200 if ( !epoch.isEmpty() )
2202 bool epochOk =
false;
2203 d->mCoordinateEpoch = epoch.toDouble( &epochOk );
2205 d->mCoordinateEpoch = std::numeric_limits< double >::quiet_NaN();
2209 d->mCoordinateEpoch = std::numeric_limits< double >::quiet_NaN();
2212 mNativeFormat = qgsEnumKeyToValue<Qgis::CrsDefinitionFormat>( srsNode.toElement().attribute( QStringLiteral(
"nativeFormat" ) ),
Qgis::CrsDefinitionFormat::Wkt );
2217 d =
new QgsCoordinateReferenceSystemPrivate();
2225 QDomElement layerNode = node.toElement();
2226 QDomElement srsElement = doc.createElement( QStringLiteral(
"spatialrefsys" ) );
2228 srsElement.setAttribute( QStringLiteral(
"nativeFormat" ), qgsEnumValueToKey<Qgis::CrsDefinitionFormat>( mNativeFormat ) );
2230 if ( std::isfinite( d->mCoordinateEpoch ) )
2232 srsElement.setAttribute( QStringLiteral(
"coordinateEpoch" ), d->mCoordinateEpoch );
2235 QDomElement wktElement = doc.createElement( QStringLiteral(
"wkt" ) );
2237 srsElement.appendChild( wktElement );
2239 QDomElement proj4Element = doc.createElement( QStringLiteral(
"proj4" ) );
2240 proj4Element.appendChild( doc.createTextNode(
toProj() ) );
2241 srsElement.appendChild( proj4Element );
2243 QDomElement srsIdElement = doc.createElement( QStringLiteral(
"srsid" ) );
2244 srsIdElement.appendChild( doc.createTextNode( QString::number(
srsid() ) ) );
2245 srsElement.appendChild( srsIdElement );
2247 QDomElement sridElement = doc.createElement( QStringLiteral(
"srid" ) );
2248 sridElement.appendChild( doc.createTextNode( QString::number(
postgisSrid() ) ) );
2249 srsElement.appendChild( sridElement );
2251 QDomElement authidElement = doc.createElement( QStringLiteral(
"authid" ) );
2252 authidElement.appendChild( doc.createTextNode(
authid() ) );
2253 srsElement.appendChild( authidElement );
2255 QDomElement descriptionElement = doc.createElement( QStringLiteral(
"description" ) );
2256 descriptionElement.appendChild( doc.createTextNode(
description() ) );
2257 srsElement.appendChild( descriptionElement );
2259 QDomElement projectionAcronymElement = doc.createElement( QStringLiteral(
"projectionacronym" ) );
2260 projectionAcronymElement.appendChild( doc.createTextNode(
projectionAcronym() ) );
2261 srsElement.appendChild( projectionAcronymElement );
2263 QDomElement ellipsoidAcronymElement = doc.createElement( QStringLiteral(
"ellipsoidacronym" ) );
2264 ellipsoidAcronymElement.appendChild( doc.createTextNode(
ellipsoidAcronym() ) );
2265 srsElement.appendChild( ellipsoidAcronymElement );
2267 QDomElement geographicFlagElement = doc.createElement( QStringLiteral(
"geographicflag" ) );
2268 QString geoFlagText = QStringLiteral(
"false" );
2271 geoFlagText = QStringLiteral(
"true" );
2274 geographicFlagElement.appendChild( doc.createTextNode( geoFlagText ) );
2275 srsElement.appendChild( geographicFlagElement );
2277 layerNode.appendChild( srsElement );
2289QString QgsCoordinateReferenceSystem::projFromSrsId(
const int srsId )
2291 QString myDatabaseFileName;
2292 QString myProjString;
2293 QString mySql = QStringLiteral(
"select parameters from tbl_srs where srs_id = %1 order by deprecated" ).arg( srsId );
2302 QFileInfo myFileInfo;
2303 myFileInfo.setFile( myDatabaseFileName );
2304 if ( !myFileInfo.exists() )
2306 QgsDebugError( QStringLiteral(
"users qgis.db not found" ) );
2319 rc = openDatabase( myDatabaseFileName, database );
2325 statement = database.
prepare( mySql, rc );
2327 if ( rc == SQLITE_OK )
2329 if ( statement.
step() == SQLITE_ROW )
2335 return myProjString;
2342 myResult = database.
open_v2( path, SQLITE_OPEN_READONLY,
nullptr );
2344 myResult = database.
open( path );
2346 if ( myResult != SQLITE_OK )
2355 .arg( database.
errorMessage() ), QObject::tr(
"CRS" ) );
2362 sCustomSrsValidation = f;
2367 return sCustomSrsValidation;
2370void QgsCoordinateReferenceSystem::debugPrint()
2373 QgsDebugMsgLevel(
"* Valid : " + ( d->mIsValid ? QString(
"true" ) : QString(
"false" ) ), 1 );
2394 mValidationHint = html;
2399 return mValidationHint;
2409 mNativeFormat = format;
2414 return mNativeFormat;
2417long QgsCoordinateReferenceSystem::getRecordCount()
2422 long myRecordCount = 0;
2425 if ( myResult != SQLITE_OK )
2431 QString mySql = QStringLiteral(
"select count(*) from tbl_srs" );
2432 statement = database.
prepare( mySql, myResult );
2433 if ( myResult == SQLITE_OK )
2435 if ( statement.
step() == SQLITE_ROW )
2437 QString myRecordCountString = statement.
columnAsText( 0 );
2438 myRecordCount = myRecordCountString.toLong();
2441 return myRecordCount;
2447 bool isGeographic =
false;
2451 if ( !horizontalCrs )
2455 if ( coordinateSystem )
2457 const int axisCount = proj_cs_get_axis_count( pjContext, coordinateSystem.get() );
2458 if ( axisCount > 0 )
2460 const char *outUnitAuthName =
nullptr;
2461 const char *outUnitAuthCode =
nullptr;
2463 proj_cs_get_axis_info( pjContext, coordinateSystem.get(), 0,
2472 if ( outUnitAuthName && outUnitAuthCode )
2474 const char *unitCategory =
nullptr;
2475 if ( proj_uom_get_info_from_database( pjContext, outUnitAuthName, outUnitAuthCode,
nullptr,
nullptr, &unitCategory ) )
2477 isGeographic = QString( unitCategory ).compare( QLatin1String(
"angular" ), Qt::CaseInsensitive ) == 0;
2482 return isGeographic;
2487 thread_local const QRegularExpression projRegExp( QStringLiteral(
"\\+proj=(\\S+)" ) );
2488 const QRegularExpressionMatch projMatch = projRegExp.match( proj );
2489 if ( !projMatch.hasMatch() )
2491 QgsDebugMsgLevel( QStringLiteral(
"no +proj argument found [%2]" ).arg( proj ), 2 );
2494 operation = projMatch.captured( 1 );
2496 const QRegularExpressionMatch ellipseMatch = projRegExp.match( proj );
2497 if ( ellipseMatch.hasMatch() )
2499 ellipsoid = ellipseMatch.captured( 1 );
2513bool QgsCoordinateReferenceSystem::loadFromAuthCode(
const QString &auth,
const QString &code )
2519 d->mIsValid =
false;
2520 d->mWktPreferred.clear();
2532 proj4.replace( QLatin1String(
"+type=crs" ), QString() );
2533 proj4 = proj4.trimmed();
2537 d->mWktPreferred.clear();
2538 d->mDescription = QString( proj_get_name(
crs.get() ) );
2539 d->mAuthId = QStringLiteral(
"%1:%2" ).arg( auth, code );
2541 d->mAxisInvertedDirty =
true;
2546 d->mEllipsoidAcronym.clear();
2547 d->setPj( std::move(
crs ) );
2549 const QString dbVals =
sAuthIdToQgisSrsIdMap.value( QStringLiteral(
"%1:%2" ).arg( auth, code ).toUpper() );
2550 if ( !dbVals.isEmpty() )
2552 const QStringList parts = dbVals.split(
',' );
2553 d->mSrsId = parts.at( 0 ).toInt();
2554 d->mSRID = parts.at( 1 ).toInt();
2562QList<long> QgsCoordinateReferenceSystem::userSrsIds()
2564 QList<long> results;
2568 QFileInfo myInfo( db );
2569 if ( !myInfo.exists() )
2579 int result = openDatabase( db, database );
2580 if ( result != SQLITE_OK )
2582 QgsDebugError(
"failed : " + db +
" could not be opened!" );
2586 QString sql = QStringLiteral(
"select srs_id from tbl_srs where srs_id >= %1" ).arg(
USER_CRS_START_ID );
2588 statement = database.
prepare( sql, rc );
2591 int ret = statement.
step();
2593 if ( ret == SQLITE_DONE )
2599 if ( ret == SQLITE_ROW )
2605 QgsMessageLog::logMessage( QObject::tr(
"SQLite error: %2\nSQL: %1" ).arg( sql, sqlite3_errmsg( database.get() ) ), QObject::tr(
"SpatiaLite" ) );
2613long QgsCoordinateReferenceSystem::matchToUserCrs()
const
2615 PJ *obj = d->threadLocalProjObject();
2619 const QList< long > ids = userSrsIds();
2620 for (
long id : ids )
2623 if ( candidate.
projObject() && proj_is_equivalent_to( obj, candidate.
projObject(), PJ_COMP_EQUIVALENT ) )
2631static void sync_db_proj_logger(
void * ,
int level,
const char *message )
2636 if ( level == PJ_LOG_ERROR )
2640 else if ( level == PJ_LOG_DEBUG )
2648 setlocale( LC_ALL,
"C" );
2651 int inserted = 0, updated = 0, deleted = 0, errors = 0;
2656 if ( database.
open( dbFilePath ) != SQLITE_OK )
2662 if ( sqlite3_exec( database.get(),
"BEGIN TRANSACTION",
nullptr,
nullptr,
nullptr ) != SQLITE_OK )
2670 char *errMsg =
nullptr;
2672 bool createdTypeColumn =
false;
2673 if ( sqlite3_exec( database.get(),
"ALTER TABLE tbl_srs ADD COLUMN srs_type text",
nullptr,
nullptr,
nullptr ) == SQLITE_OK )
2675 createdTypeColumn =
true;
2676 if ( sqlite3_exec( database.get(),
"CREATE INDEX srs_type ON tbl_srs(srs_type)",
nullptr,
nullptr,
nullptr ) != SQLITE_OK )
2678 QgsDebugError( QStringLiteral(
"Could not create index for srs_type" ) );
2683 if ( sqlite3_exec( database.get(),
"create table tbl_info (proj_major INT, proj_minor INT, proj_patch INT)",
nullptr,
nullptr,
nullptr ) == SQLITE_OK )
2685 QString sql = QStringLiteral(
"INSERT INTO tbl_info(proj_major, proj_minor, proj_patch) VALUES (%1, %2,%3)" )
2686 .arg( QString::number( PROJ_VERSION_MAJOR ),
2687 QString::number( PROJ_VERSION_MINOR ),
2688 QString::number( PROJ_VERSION_PATCH ) );
2689 if ( sqlite3_exec( database.get(), sql.toUtf8(),
nullptr,
nullptr, &errMsg ) != SQLITE_OK )
2691 QgsDebugError( QStringLiteral(
"Could not execute: %1 [%2/%3]\n" ).arg(
2694 errMsg ? errMsg :
"(unknown error)" ) );
2696 sqlite3_free( errMsg );
2703 QString sql = QStringLiteral(
"SELECT proj_major, proj_minor, proj_patch FROM tbl_info" );
2704 statement = database.
prepare( sql, result );
2705 if ( result != SQLITE_OK )
2710 if ( statement.
step() == SQLITE_ROW )
2715 if ( !createdTypeColumn && major == PROJ_VERSION_MAJOR && minor == PROJ_VERSION_MINOR && patch == PROJ_VERSION_PATCH )
2721 QgsDebugError( QStringLiteral(
"Could not retrieve previous CRS sync PROJ version number" ) );
2728 proj_log_func( pjContext,
nullptr, sync_db_proj_logger );
2730 PROJ_STRING_LIST authorities = proj_get_authorities_from_database( pjContext );
2732 int nextSrsId = 67218;
2733 int nextSrId = 520007218;
2734 for (
auto authIter = authorities; authIter && *authIter; ++authIter )
2736 const QString authority( *authIter );
2737 QgsDebugMsgLevel( QStringLiteral(
"Loading authority '%1'" ).arg( authority ), 2 );
2738 PROJ_STRING_LIST codes = proj_get_codes_from_database( pjContext, *authIter, PJ_TYPE_CRS,
true );
2740 QStringList allCodes;
2742 for (
auto codesIter = codes; codesIter && *codesIter; ++codesIter )
2744 const QString code( *codesIter );
2750 QgsDebugError( QStringLiteral(
"Could not load '%1:%2'" ).arg( authority, code ) );
2754 const PJ_TYPE pjType = proj_get_type(
crs.get( ) );
2756 QString srsTypeString;
2761 case PJ_TYPE_ELLIPSOID:
2762 case PJ_TYPE_PRIME_MERIDIAN:
2763 case PJ_TYPE_GEODETIC_REFERENCE_FRAME:
2764 case PJ_TYPE_DYNAMIC_GEODETIC_REFERENCE_FRAME:
2765 case PJ_TYPE_VERTICAL_REFERENCE_FRAME:
2766 case PJ_TYPE_DYNAMIC_VERTICAL_REFERENCE_FRAME:
2767 case PJ_TYPE_DATUM_ENSEMBLE:
2768 case PJ_TYPE_CONVERSION:
2769 case PJ_TYPE_TRANSFORMATION:
2770 case PJ_TYPE_CONCATENATED_OPERATION:
2771 case PJ_TYPE_OTHER_COORDINATE_OPERATION:
2772 case PJ_TYPE_TEMPORAL_DATUM:
2773 case PJ_TYPE_ENGINEERING_DATUM:
2774 case PJ_TYPE_PARAMETRIC_DATUM:
2775 case PJ_TYPE_UNKNOWN:
2779 case PJ_TYPE_GEOGRAPHIC_CRS:
2782 case PJ_TYPE_GEODETIC_CRS:
2786 case PJ_TYPE_GEOCENTRIC_CRS:
2790 case PJ_TYPE_GEOGRAPHIC_2D_CRS:
2794 case PJ_TYPE_GEOGRAPHIC_3D_CRS:
2798 case PJ_TYPE_PROJECTED_CRS:
2802 case PJ_TYPE_COMPOUND_CRS:
2806 case PJ_TYPE_TEMPORAL_CRS:
2810 case PJ_TYPE_ENGINEERING_CRS:
2814 case PJ_TYPE_BOUND_CRS:
2818 case PJ_TYPE_VERTICAL_CRS:
2822#if PROJ_VERSION_MAJOR>9 || (PROJ_VERSION_MAJOR==9 && PROJ_VERSION_MINOR>=2)
2823 case PJ_TYPE_DERIVED_PROJECTED_CRS:
2826 case PJ_TYPE_COORDINATE_METADATA:
2829 case PJ_TYPE_OTHER_CRS:
2838 proj4.replace( QLatin1String(
"+type=crs" ), QString() );
2839 proj4 = proj4.trimmed();
2841 if ( proj4.isEmpty() )
2843 QgsDebugMsgLevel( QStringLiteral(
"No proj4 for '%1:%2'" ).arg( authority, code ), 2 );
2854 if ( translatedOperation.isEmpty() && !
operation.isEmpty() )
2856 std::cout << QStringLiteral(
"Operation needs translation in QgsCoordinateReferenceSystemUtils::translateProjection: %1" ).arg(
operation ).toLocal8Bit().constData() << std::endl;
2857 qFatal(
"aborted" );
2860 const bool deprecated = proj_is_deprecated(
crs.get() );
2861 const QString name( proj_get_name(
crs.get() ) );
2863 QString sql = QStringLiteral(
"SELECT parameters,description,deprecated,srs_type FROM tbl_srs WHERE auth_name='%1' AND auth_id='%2'" ).arg( authority, code );
2864 statement = database.
prepare( sql, result );
2865 if ( result != SQLITE_OK )
2874 bool dbSrsDeprecated = deprecated;
2875 if ( statement.
step() == SQLITE_ROW )
2879 dbSrsDeprecated = statement.
columnAsText( 2 ).toInt() != 0;
2883 if ( !dbSrsProj4.isEmpty() || !dbSrsDesc.isEmpty() )
2885 if ( proj4 != dbSrsProj4 || name != dbSrsDesc || deprecated != dbSrsDeprecated || dbSrsType != srsTypeString )
2888 sql = QStringLiteral(
"UPDATE tbl_srs SET parameters=%1,description=%2,deprecated=%3, srs_type=%4 WHERE auth_name=%5 AND auth_id=%6" )
2891 .arg( deprecated ? 1 : 0 )
2895 if ( sqlite3_exec( database.get(), sql.toUtf8(),
nullptr,
nullptr, &errMsg ) != SQLITE_OK )
2897 QgsDebugError( QStringLiteral(
"Could not execute: %1 [%2/%3]\n" ).arg(
2900 errMsg ? errMsg :
"(unknown error)" ) );
2902 sqlite3_free( errMsg );
2916 const QString dbVals =
sAuthIdToQgisSrsIdMap.value( QStringLiteral(
"%1:%2" ).arg( authority, code ) );
2919 if ( !dbVals.isEmpty() )
2921 const QStringList parts = dbVals.split(
',' );
2922 srsId = parts.at( 0 );
2923 srId = parts.at( 1 );
2925 if ( srId.isEmpty() )
2927 srId = QString::number( nextSrId );
2930 if ( srsId.isEmpty() )
2932 srsId = QString::number( nextSrsId );
2936 if ( !srsId.isEmpty() )
2938 sql = QStringLiteral(
"INSERT INTO tbl_srs(srs_id, description,projection_acronym,ellipsoid_acronym,parameters,srid,auth_name,auth_id,is_geo,deprecated,srs_type) VALUES (%1, %2,%3,%4,%5,%6,%7,%8,%9,%10,%11)" )
2948 .arg( deprecated ? 1 : 0 )
2953 sql = QStringLiteral(
"INSERT INTO tbl_srs(description,projection_acronym,ellipsoid_acronym,parameters,srid,auth_name,auth_id,is_geo,deprecated,srs_type) VALUES (%1,%2,%3,%4,%5,%6,%7,%8,%9,%10)" )
2962 .arg( deprecated ? 1 : 0 )
2967 if ( sqlite3_exec( database.get(), sql.toUtf8(),
nullptr,
nullptr, &errMsg ) == SQLITE_OK )
2973 qCritical(
"Could not execute: %s [%s/%s]\n",
2974 sql.toLocal8Bit().constData(),
2975 sqlite3_errmsg( database.get() ),
2976 errMsg ? errMsg :
"(unknown error)" );
2980 sqlite3_free( errMsg );
2985 proj_string_list_destroy( codes );
2987 const QString sql = QStringLiteral(
"DELETE FROM tbl_srs WHERE auth_name='%1' AND NOT auth_id IN (%2)" ).arg( authority, allCodes.join(
',' ) );
2988 if ( sqlite3_exec( database.get(), sql.toUtf8(),
nullptr,
nullptr,
nullptr ) == SQLITE_OK )
2990 deleted = sqlite3_changes( database.get() );
2995 qCritical(
"Could not execute: %s [%s]\n",
2996 sql.toLocal8Bit().constData(),
2997 sqlite3_errmsg( database.get() ) );
3001 proj_string_list_destroy( authorities );
3003 QString sql = QStringLiteral(
"UPDATE tbl_info set proj_major=%1,proj_minor=%2,proj_patch=%3" )
3004 .arg( QString::number( PROJ_VERSION_MAJOR ),
3005 QString::number( PROJ_VERSION_MINOR ),
3006 QString::number( PROJ_VERSION_PATCH ) );
3007 if ( sqlite3_exec( database.get(), sql.toUtf8(),
nullptr,
nullptr, &errMsg ) != SQLITE_OK )
3009 QgsDebugError( QStringLiteral(
"Could not execute: %1 [%2/%3]\n" ).arg(
3012 errMsg ? errMsg :
"(unknown error)" ) );
3014 sqlite3_free( errMsg );
3018 if ( sqlite3_exec( database.get(),
"COMMIT",
nullptr,
nullptr,
nullptr ) != SQLITE_OK )
3020 QgsDebugError( QStringLiteral(
"Could not commit transaction: %1 [%2]\n" ).arg(
3022 sqlite3_errmsg( database.get() ) )
3028 QgsDebugMsgLevel( QStringLiteral(
"CRS update (inserted:%1 updated:%2 deleted:%3 errors:%4)" ).arg( inserted ).arg( updated ).arg( deleted ).arg( errors ), 4 );
3036 return updated + inserted;
3039const QHash<QString, QgsCoordinateReferenceSystem> &QgsCoordinateReferenceSystem::stringCache()
3041 return *sStringCache();
3044const QHash<QString, QgsCoordinateReferenceSystem> &QgsCoordinateReferenceSystem::projCache()
3046 return *sProj4Cache();
3049const QHash<QString, QgsCoordinateReferenceSystem> &QgsCoordinateReferenceSystem::ogcCache()
3051 return *sOgcCache();
3054const QHash<QString, QgsCoordinateReferenceSystem> &QgsCoordinateReferenceSystem::wktCache()
3056 return *sWktCache();
3059const QHash<long, QgsCoordinateReferenceSystem> &QgsCoordinateReferenceSystem::srIdCache()
3061 return *sSrIdCache();
3064const QHash<long, QgsCoordinateReferenceSystem> &QgsCoordinateReferenceSystem::srsIdCache()
3066 return *sSrsIdCache();
3076 if (
PJ *obj = d->threadLocalProjObject() )
3122 if (
PJ *obj = d->threadLocalProjObject() )
3155 if (
PJ *obj = d->threadLocalProjObject() )
3166 if (
PJ *obj = d->threadLocalProjObject() )
3179 else if (
PJ *obj = d->threadLocalProjObject() )
3182 return geoCrs ? QStringLiteral(
"%1:%2" ).arg( proj_get_id_auth_name( geoCrs.get(), 0 ), proj_get_id_code( geoCrs.get(), 0 ) ) : QString();
3192 return d->threadLocalProjObject();
3205 d->mIsValid =
false;
3207 d->mWktPreferred.clear();
3214 switch ( proj_get_type(
object ) )
3216 case PJ_TYPE_GEODETIC_CRS:
3217 case PJ_TYPE_GEOCENTRIC_CRS:
3218 case PJ_TYPE_GEOGRAPHIC_CRS:
3219 case PJ_TYPE_GEOGRAPHIC_2D_CRS:
3220 case PJ_TYPE_GEOGRAPHIC_3D_CRS:
3221 case PJ_TYPE_VERTICAL_CRS:
3222 case PJ_TYPE_PROJECTED_CRS:
3223 case PJ_TYPE_COMPOUND_CRS:
3224 case PJ_TYPE_TEMPORAL_CRS:
3225 case PJ_TYPE_ENGINEERING_CRS:
3226 case PJ_TYPE_BOUND_CRS:
3227 case PJ_TYPE_OTHER_CRS:
3243 const QString authName( proj_get_id_auth_name( d->threadLocalProjObject(), 0 ) );
3244 const QString authCode( proj_get_id_code( d->threadLocalProjObject(), 0 ) );
3245 if ( !authName.isEmpty() && !authCode.isEmpty() &&
createFromOgcWmsCrs( QStringLiteral(
"%1:%2" ).arg( authName, authCode ) ) )
3253 d->mDescription = QString( proj_get_name( d->threadLocalProjObject() ) );
3264 QStringList projections;
3266 projections.reserve( res.size() );
3269 projections << QString::number(
crs.
srsid() );
3296 sSrIdCacheLock()->lockForWrite();
3297 if ( !sDisableSrIdCache )
3300 sDisableSrIdCache =
true;
3301 sSrIdCache()->clear();
3303 sSrIdCacheLock()->unlock();
3305 sOgcLock()->lockForWrite();
3306 if ( !sDisableOgcCache )
3309 sDisableOgcCache =
true;
3310 sOgcCache()->clear();
3312 sOgcLock()->unlock();
3314 sProj4CacheLock()->lockForWrite();
3315 if ( !sDisableProjCache )
3318 sDisableProjCache =
true;
3319 sProj4Cache()->clear();
3321 sProj4CacheLock()->unlock();
3323 sCRSWktLock()->lockForWrite();
3324 if ( !sDisableWktCache )
3327 sDisableWktCache =
true;
3328 sWktCache()->clear();
3330 sCRSWktLock()->unlock();
3332 sCRSSrsIdLock()->lockForWrite();
3333 if ( !sDisableSrsIdCache )
3336 sDisableSrsIdCache =
true;
3337 sSrsIdCache()->clear();
3339 sCRSSrsIdLock()->unlock();
3341 sCrsStringLock()->lockForWrite();
3342 if ( !sDisableStringCache )
3345 sDisableStringCache =
true;
3346 sStringCache()->clear();
3348 sCrsStringLock()->unlock();
3357 if ( !c1.d->mIsValid && !c2.d->mIsValid )
3360 if ( !c1.d->mIsValid && c2.d->mIsValid )
3363 if ( c1.d->mIsValid && !c2.d->mIsValid )
3369 if ( c1IsUser && !c2IsUser )
3372 if ( !c1IsUser && c2IsUser )
3375 if ( !c1IsUser && !c2IsUser && !c1.d->mAuthId.isEmpty() && !c2.d->mAuthId.isEmpty() )
3377 if ( c1.d->mAuthId != c2.d->mAuthId )
3378 return c1.d->mAuthId > c2.d->mAuthId;
3386 if ( c1.d->mCoordinateEpoch == c2.d->mCoordinateEpoch )
3389 if ( std::isnan( c1.d->mCoordinateEpoch ) && std::isnan( c2.d->mCoordinateEpoch ) )
3392 if ( std::isnan( c1.d->mCoordinateEpoch ) && !std::isnan( c2.d->mCoordinateEpoch ) )
3395 if ( !std::isnan( c1.d->mCoordinateEpoch ) && std::isnan( c2.d->mCoordinateEpoch ) )
3398 return c1.d->mCoordinateEpoch > c2.d->mCoordinateEpoch;
3406 if ( !c1.d->mIsValid && !c2.d->mIsValid )
3409 if ( c1.d->mIsValid && !c2.d->mIsValid )
3412 if ( !c1.d->mIsValid && c2.d->mIsValid )
3418 if ( !c1IsUser && c2IsUser )
3421 if ( c1IsUser && !c2IsUser )
3424 if ( !c1IsUser && !c2IsUser && !c1.d->mAuthId.isEmpty() && !c2.d->mAuthId.isEmpty() )
3426 if ( c1.d->mAuthId != c2.d->mAuthId )
3427 return c1.d->mAuthId < c2.d->mAuthId;
3435 if ( c1.d->mCoordinateEpoch == c2.d->mCoordinateEpoch )
3438 if ( std::isnan( c1.d->mCoordinateEpoch ) && std::isnan( c2.d->mCoordinateEpoch ) )
3441 if ( !std::isnan( c1.d->mCoordinateEpoch ) && std::isnan( c2.d->mCoordinateEpoch ) )
3444 if ( std::isnan( c1.d->mCoordinateEpoch ) && !std::isnan( c2.d->mCoordinateEpoch ) )
3447 return c1.d->mCoordinateEpoch < c2.d->mCoordinateEpoch;
3452 return !( c1 < c2 );
3456 return !( c1 > c2 );
CrsIdentifierType
Available identifier string types for representing coordinate reference systems.
@ ShortString
A heavily abbreviated string, for use when a compact representation is required.
@ MediumString
A medium-length string, recommended for general purpose use.
DistanceUnit
Units of distance.
@ YardsBritishSears1922Truncated
British yards (Sears 1922 truncated)
@ MilesUSSurvey
US Survey miles.
@ LinksBritishSears1922
British links (Sears 1922)
@ YardsBritishBenoit1895A
British yards (Benoit 1895 A)
@ LinksBritishBenoit1895A
British links (Benoit 1895 A)
@ Centimeters
Centimeters.
@ YardsIndian1975
Indian yards (1975)
@ FeetUSSurvey
US Survey feet.
@ Millimeters
Millimeters.
@ FeetBritishSears1922
British feet (Sears 1922)
@ YardsClarkes
Clarke's yards.
@ YardsIndian
Indian yards.
@ FeetBritishBenoit1895B
British feet (Benoit 1895 B)
@ Miles
Terrestrial miles.
@ LinksUSSurvey
US Survey links.
@ ChainsUSSurvey
US Survey chains.
@ FeetClarkes
Clarke's feet.
@ Unknown
Unknown distance unit.
@ FeetBritish1936
British feet (1936)
@ FeetIndian1962
Indian feet (1962)
@ YardsBritishSears1922
British yards (Sears 1922)
@ FeetIndian1937
Indian feet (1937)
@ YardsIndian1937
Indian yards (1937)
@ Degrees
Degrees, for planar geographic CRS distance measurements.
@ ChainsBritishBenoit1895B
British chains (Benoit 1895 B)
@ LinksBritishSears1922Truncated
British links (Sears 1922 truncated)
@ ChainsBritishBenoit1895A
British chains (Benoit 1895 A)
@ YardsBritishBenoit1895B
British yards (Benoit 1895 B)
@ FeetBritish1865
British feet (1865)
@ YardsIndian1962
Indian yards (1962)
@ FeetBritishSears1922Truncated
British feet (Sears 1922 truncated)
@ MetersGermanLegal
German legal meter.
@ LinksBritishBenoit1895B
British links (Benoit 1895 B)
@ ChainsInternational
International chains.
@ LinksInternational
International links.
@ ChainsBritishSears1922Truncated
British chains (Sears 1922 truncated)
@ FeetIndian
Indian (geodetic) feet.
@ NauticalMiles
Nautical miles.
@ ChainsClarkes
Clarke's chains.
@ LinksClarkes
Clarke's links.
@ ChainsBritishSears1922
British chains (Sears 1922)
@ FeetIndian1975
Indian feet (1975)
@ FeetGoldCoast
Gold Coast feet.
@ FeetBritishBenoit1895A
British feet (Benoit 1895 A)
@ Critical
Critical/error message.
CrsType
Coordinate reference system types.
@ Compound
Compound (horizontal + vertical) CRS.
@ Projected
Projected CRS.
@ DerivedProjected
Derived projected CRS.
@ Engineering
Engineering CRS.
@ Geographic3d
3D geopraphic CRS
@ Geographic2d
2D geographic CRS
@ Geocentric
Geocentric CRS.
CrsDefinitionFormat
CRS definition formats.
@ Wkt
WKT format (always recommended over proj string format)
CrsAxisDirection
Coordinate reference system axis directions.
@ ColumnPositive
Column positive.
@ SouthSouthEast
South South East.
@ ColumnNegative
Column negative.
@ RowPositive
Row positive.
@ DisplayDown
Display down.
@ GeocentricZ
Geocentric (Z)
@ DisplayRight
Display right.
@ WestSouthWest
West South West.
@ RowNegative
Row negative.
@ NorthNorthEast
North North East.
@ EastNorthEast
East North East.
@ Unspecified
Unspecified.
@ NorthNorthWest
North North West.
@ GeocentricY
Geocentric (Y)
@ CounterClockwise
Counter clockwise.
@ SouthSouthWest
South South West.
@ DisplayLeft
Display left.
@ WestNorthWest
West North West.
@ EastSouthEast
East South East.
@ GeocentricX
Geocentric (X)
CrsWktVariant
Coordinate reference system WKT formatting variants.
@ Wkt2_2019Simplified
WKT2_2019 with the simplification rule of WKT2_SIMPLIFIED.
@ Wkt2_2015Simplified
Same as WKT2_2015 with the following exceptions: UNIT keyword used. ID node only on top element....
@ Wkt1Esri
WKT1 as traditionally output by ESRI software, deriving from OGC 99-049.
@ Preferred
Preferred format, matching the most recent WKT ISO standard. Currently an alias to WKT2_2019,...
@ Wkt2_2019
Full WKT2 string, conforming to ISO 19162:2019 / OGC 18-010, with all possible nodes and new keyword ...
@ Wkt2_2015
Full WKT2 string, conforming to ISO 19162:2015(E) / OGC 12-063r5 with all possible nodes and new keyw...
@ Wkt1Gdal
WKT1 as traditionally output by GDAL, deriving from OGC 01-009. A notable departure from WKT1_GDAL wi...
static QgsCoordinateReferenceSystemRegistry * coordinateReferenceSystemRegistry()
Returns the application's coordinate reference system (CRS) registry, which handles known CRS definit...
static QString qgisUserDatabaseFilePath()
Returns the path to the user qgis.db file.
static QString srsDatabaseFilePath()
Returns the path to the srs.db file.
void removeRecent(const QgsCoordinateReferenceSystem &crs)
Removes a CRS from the list of recently used CRS.
long addUserCrs(const QgsCoordinateReferenceSystem &crs, const QString &name, Qgis::CrsDefinitionFormat nativeFormat=Qgis::CrsDefinitionFormat::Wkt)
Adds a new crs definition as a custom ("USER") CRS.
void clearRecent()
Cleans the list of recently used CRS.
QList< QgsCoordinateReferenceSystem > recentCrs()
Returns a list of recently used CRS.
void pushRecent(const QgsCoordinateReferenceSystem &crs)
Pushes a recently used CRS to the top of the recent CRS list.
QMap< QString, QgsProjOperation > projOperations() const
Returns a map of all valid PROJ operations.
static QString translateProjection(const QString &projection)
Returns a translated string for a projection method.
This class represents a coordinate reference system (CRS).
static QgsCoordinateReferenceSystem fromOgcWmsCrs(const QString &ogcCrs)
Creates a CRS from a given OGC WMS-format Coordinate Reference System string.
bool createFromOgcWmsCrs(const QString &crs)
Sets this CRS to the given OGC WMS-format Coordinate Reference Systems.
bool isValid() const
Returns whether this CRS is correctly initialized and usable.
bool createFromWkt(const QString &wkt)
Sets this CRS using a WKT definition.
bool createFromString(const QString &definition)
Set up this CRS from a string definition.
bool hasVerticalAxis() const
Returns true if the CRS has a vertical axis.
void validate()
Perform some validation on this CRS.
~QgsCoordinateReferenceSystem()
QgsRectangle bounds() const
Returns the approximate bounds for the region the CRS is usable within.
QString toProj() const
Returns a Proj string representation of this CRS.
static CUSTOM_CRS_VALIDATION customCrsValidation()
Gets custom function.
bool readXml(const QDomNode &node)
Restores state from the given DOM node.
static QgsCoordinateReferenceSystem createCompoundCrs(const QgsCoordinateReferenceSystem &horizontalCrs, const QgsCoordinateReferenceSystem &verticalCrs, QString &error)
Given a horizontal and vertical CRS, attempts to create a compound CRS from them.
static Q_INVOKABLE QgsCoordinateReferenceSystem fromEpsgId(long epsg)
Creates a CRS from a given EPSG ID.
Q_DECL_DEPRECATED bool createFromProj4(const QString &projString)
Sets this CRS by passing it a PROJ style formatted string.
static Q_DECL_DEPRECATED QStringList recentProjections()
Returns a list of recently used projections.
QString ellipsoidAcronym() const
Returns the ellipsoid acronym for the ellipsoid used by the CRS.
QString toOgcUri() const
Returns the crs as OGC URI (format: http://www.opengis.net/def/crs/OGC/1.3/CRS84) Returns an empty st...
QString toOgcUrn() const
Returns the crs as OGC URN (format: urn:ogc:def:crs:OGC:1.3:CRS84) Returns an empty string on failure...
static void setCustomCrsValidation(CUSTOM_CRS_VALIDATION f)
Sets custom function to force valid CRS.
static Q_DECL_DEPRECATED void pushRecentCoordinateReferenceSystem(const QgsCoordinateReferenceSystem &crs)
Pushes a recently used CRS to the top of the recent CRS list.
long postgisSrid() const
Returns PostGIS SRID for the CRS.
QgsCoordinateReferenceSystem horizontalCrs() const
Returns the horizontal CRS associated with this CRS object.
Q_DECL_DEPRECATED long findMatchingProj()
Walks the CRS databases (both system and user database) trying to match stored PROJ string to a datab...
static QList< long > validSrsIds()
Returns a list of all valid SRS IDs present in the CRS database.
QgsProjectionFactors factors(const QgsPoint &point) const
Calculate various cartographic properties, such as scale factors, angular distortion and meridian con...
void setValidationHint(const QString &html)
Set user hint for validation.
Q_DECL_DEPRECATED QString toProj4() const
Returns a Proj string representation of this CRS.
bool operator==(const QgsCoordinateReferenceSystem &srs) const
QString projectionAcronym() const
Returns the projection acronym for the projection used by the CRS.
QString userFriendlyIdentifier(Qgis::CrsIdentifierType type=Qgis::CrsIdentifierType::MediumString) const
Returns a user friendly identifier for the CRS.
Qgis::CrsDefinitionFormat nativeFormat() const
Returns the native format for the CRS definition.
CrsType
Enumeration of types of IDs accepted in createFromId() method.
@ InternalCrsId
Internal ID used by QGIS in the local SQLite database.
@ PostgisCrsId
SRID used in PostGIS. DEPRECATED – DO NOT USE.
bool createFromUserInput(const QString &definition)
Set up this CRS from various text formats.
QgsCoordinateReferenceSystem()
Constructs an invalid CRS object.
static int syncDatabase()
Update proj.4 parameters in our database from proj.4.
bool operator!=(const QgsCoordinateReferenceSystem &srs) const
void setNativeFormat(Qgis::CrsDefinitionFormat format)
Sets the native format for the CRS definition.
bool createFromProj(const QString &projString, bool identify=true)
Sets this CRS by passing it a PROJ style formatted string.
QgsCoordinateReferenceSystem verticalCrs() const
Returns the vertical CRS associated with this CRS object.
static Q_DECL_DEPRECATED void removeRecentCoordinateReferenceSystem(const QgsCoordinateReferenceSystem &crs)
Removes a CRS from the list of recently used CRS.
QgsDatumEnsemble datumEnsemble() const
Attempts to retrieve datum ensemble details from the CRS.
QgsCoordinateReferenceSystem toGeographicCrs() const
Returns the geographic CRS associated with this CRS object.
bool isDynamic() const
Returns true if the CRS is a dynamic CRS.
bool createFromSrsId(long srsId)
Sets this CRS by lookup of internal QGIS CRS ID in the CRS database.
Q_DECL_DEPRECATED bool createFromId(long id, CrsType type=PostgisCrsId)
Sets this CRS by lookup of the given ID in the CRS database.
static QgsCoordinateReferenceSystem fromProjObject(PJ *object)
Constructs a QgsCoordinateReferenceSystem from a PROJ PJ object.
static void invalidateCache(bool disableCache=false)
Clears the internal cache used to initialize QgsCoordinateReferenceSystem objects.
QgsCoordinateReferenceSystem & operator=(const QgsCoordinateReferenceSystem &srs)
void updateDefinition()
Updates the definition and parameters of the coordinate reference system to their latest values.
static QgsCoordinateReferenceSystem fromProj(const QString &proj)
Creates a CRS from a proj style formatted string.
static Q_DECL_DEPRECATED void setupESRIWktFix()
Make sure that ESRI WKT import is done properly.
static Q_DECL_DEPRECATED QList< QgsCoordinateReferenceSystem > recentCoordinateReferenceSystems()
Returns a list of recently used CRS.
QString toWkt(Qgis::CrsWktVariant variant=Qgis::CrsWktVariant::Wkt1Gdal, bool multiline=false, int indentationWidth=4) const
Returns a WKT representation of this CRS.
PJ * projObject() const
Returns the underlying PROJ PJ object corresponding to the CRS, or nullptr if the CRS is invalid.
void setCoordinateEpoch(double epoch)
Sets the coordinate epoch, as a decimal year.
Q_DECL_DEPRECATED bool createFromSrid(long srid)
Sets this CRS by lookup of the given PostGIS SRID in the CRS database.
long saveAsUserCrs(const QString &name, Qgis::CrsDefinitionFormat nativeFormat=Qgis::CrsDefinitionFormat::Wkt)
Saves the CRS as a new custom ("USER") CRS.
static Q_DECL_DEPRECATED void clearRecentCoordinateReferenceSystems()
Cleans the list of recently used CRS.
QString celestialBodyName() const
Attempts to retrieve the name of the celestial body associated with the CRS (e.g.
static QgsCoordinateReferenceSystem fromWkt(const QString &wkt)
Creates a CRS from a WKT spatial ref sys definition string.
bool writeXml(QDomNode &node, QDomDocument &doc) const
Stores state to the given Dom node in the given document.
static QgsCoordinateReferenceSystem fromSrsId(long srsId)
Creates a CRS from a specified QGIS SRS ID.
double coordinateEpoch() const
Returns the coordinate epoch, as a decimal year.
QString geographicCrsAuthId() const
Returns auth id of related geographic CRS.
QString validationHint() const
Gets user hint for validation.
QgsProjOperation operation() const
Returns information about the PROJ operation associated with the coordinate reference system,...
QList< Qgis::CrsAxisDirection > axisOrdering() const
Returns an ordered list of the axis directions reflecting the native axis order for the CRS.
long srsid() const
Returns the internal CRS ID, if available.
Qgis::CrsType type() const
Returns the type of the CRS.
Qgis::DistanceUnit mapUnits
bool hasAxisInverted() const
Returns whether the axis order is inverted for the CRS compared to the order east/north (longitude/la...
bool createFromProjObject(PJ *object)
Sets this CRS by passing it a PROJ PJ object, corresponding to a PROJ CRS object.
bool isDeprecated() const
Returns true if the CRS is considered deprecated.
static Q_DECL_DEPRECATED QgsCoordinateReferenceSystem fromProj4(const QString &proj4)
Creates a CRS from a proj style formatted string.
Contains information about a member of a datum ensemble.
Contains information about a datum ensemble.
static void warning(const QString &msg)
Goes to qWarning.
static void logMessage(const QString &message, const QString &tag=QString(), Qgis::MessageLevel level=Qgis::MessageLevel::Warning, bool notifyUser=true)
Adds a message to the log instance (and creates it if necessary).
Custom exception class which is raised when an operation is not supported.
@ UNKNOWN
Unknown/unhandled flavor.
@ AUTH_CODE
E.g EPSG:4326.
static CRSFlavor parseCrsName(const QString &crsName, QString &authority, QString &code)
Parse a CRS name in one of the flavors of OGC services, and decompose it as authority and code.
static QString OGRSpatialReferenceToWkt(OGRSpatialReferenceH srs)
Returns a WKT string corresponding to the specified OGR srs object.
Point geometry type, with support for z-dimension and m-values.
static PJ_CONTEXT * get()
Returns a thread local instance of a proj context, safe for use in the current thread.
Contains information about a PROJ operation.
static proj_pj_unique_ptr crsToHorizontalCrs(const PJ *crs)
Given a PROJ crs (which may be a compound or bound crs, or some other type), extract the horizontal c...
@ FlagMatchBoundCrsToUnderlyingSourceCrs
Allow matching a BoundCRS object to its underlying SourceCRS.
static proj_pj_unique_ptr createCompoundCrs(const PJ *horizontalCrs, const PJ *verticalCrs, QStringList *errors=nullptr)
Given a PROJ horizontal and vertical CRS, attempt to create a compound CRS from them.
static bool isDynamic(const PJ *crs)
Returns true if the given proj coordinate system is a dynamic CRS.
static proj_pj_unique_ptr unboundCrs(const PJ *crs)
Given a PROJ crs (which may be a compound or bound crs, or some other type), ensure that it is not a ...
static bool identifyCrs(const PJ *crs, QString &authName, QString &authCode, IdentifyFlags flags=IdentifyFlags())
Attempts to identify a crs, matching it to a known authority and code within an acceptable level of t...
static bool hasVerticalAxis(const PJ *crs)
Returns true if a PROJ crs has a vertical axis.
static proj_pj_unique_ptr crsToVerticalCrs(const PJ *crs)
Given a PROJ crs (which may be a compound crs, or some other type), extract the vertical crs from it.
static proj_pj_unique_ptr crsToDatumEnsemble(const PJ *crs)
Given a PROJ crs, attempt to retrieve the datum ensemble from it.
std::unique_ptr< PJ, ProjPJDeleter > proj_pj_unique_ptr
Scoped Proj PJ object.
static bool axisOrderIsSwapped(const PJ *crs)
Returns true if the given proj coordinate system uses requires y/x coordinate order instead of x/y.
contains various cartographic properties, such as scale factors, angular distortion and meridian conv...
The QgsReadWriteLocker class is a convenience class that simplifies locking and unlocking QReadWriteL...
void unlock()
Unlocks the lock.
void changeMode(Mode mode)
Change the mode of the lock to mode.
A rectangle specified with double values.
void setYMinimum(double y)
Set the minimum y value.
void setXMinimum(double x)
Set the minimum x value.
void setYMaximum(double y)
Set the maximum y value.
void setXMaximum(double x)
Set the maximum x value.
static QString quotedString(const QString &value)
Returns a quoted string value, surround by ' characters and with special characters correctly escaped...
Unique pointer for sqlite3 databases, which automatically closes the database when the pointer goes o...
sqlite3_statement_unique_ptr prepare(const QString &sql, int &resultCode) const
Prepares a sql statement, returning the result.
int open(const QString &path)
Opens the database at the specified file path.
QString errorMessage() const
Returns the most recent error message encountered by the database.
int open_v2(const QString &path, int flags, const char *zVfs)
Opens the database at the specified file path.
Unique pointer for sqlite3 prepared statements, which automatically finalizes the statement when the ...
QString columnAsText(int column) const
Returns the column value from the current statement row as a string.
QString columnName(int column) const
Returns the name of column.
int step()
Steps to the next record in the statement, returning the sqlite3 result code.
qlonglong columnAsInt64(int column) const
Gets column value from the current statement row as a long long integer (64 bits).
int columnCount() const
Gets the number of columns that this statement returns.
#define Q_NOWARN_DEPRECATED_POP
QString qgsDoubleToString(double a, int precision=17)
Returns a string representation of a double.
QString qgsEnumValueToKey(const T &value, bool *returnOk=nullptr)
Returns the value for the given key of an enum.
#define Q_NOWARN_DEPRECATED_PUSH
bool qgsNanCompatibleEquals(double a, double b)
Compare two doubles, treating nan values as equal.
const int USER_CRS_START_ID
Magick number that determines whether a projection crsid is a system (srs.db) or user (~/....
QString getFullProjString(PJ *obj)
bool operator>=(const QgsCoordinateReferenceSystem &c1, const QgsCoordinateReferenceSystem &c2)
bool operator<(const QgsCoordinateReferenceSystem &c1, const QgsCoordinateReferenceSystem &c2)
bool testIsGeographic(PJ *crs)
void getOperationAndEllipsoidFromProjString(const QString &proj, QString &operation, QString &ellipsoid)
QHash< QString, QgsCoordinateReferenceSystem > StringCrsCacheHash
bool operator<=(const QgsCoordinateReferenceSystem &c1, const QgsCoordinateReferenceSystem &c2)
QHash< long, QgsCoordinateReferenceSystem > SrIdCrsCacheHash
bool operator>(const QgsCoordinateReferenceSystem &c1, const QgsCoordinateReferenceSystem &c2)
void * OGRSpatialReferenceH
struct projCtx_t PJ_CONTEXT
void(* CUSTOM_CRS_VALIDATION)(QgsCoordinateReferenceSystem &)
const QMap< QString, QString > sAuthIdToQgisSrsIdMap
Q_GLOBAL_STATIC(QReadWriteLock, sDefinitionCacheLock)
#define QgsDebugMsgLevel(str, level)
#define QgsDebugError(str)
const QgsCoordinateReferenceSystem & crs