QString QgsCoordinateUtils::formatCoordinateForProject( const QgsPoint& point, const QgsCoordinateReferenceSystem& destCrs, int precision )
{
QString format = QgsProject::instance()->readEntry( "PositionPrecision", "/DegreeFormat", "MU" );
QgsPoint geo = point;
if ( format == "DM" || format == "DMS" || format == "D" )
{
// degrees
if ( destCrs.isValid() && !destCrs.geographicFlag() )
{
// need to transform to geographic coordinates
QgsCoordinateTransform ct( destCrs, QgsCoordinateReferenceSystem( GEOSRID ) );
try
{
geo = ct.transform( point );
}
catch ( QgsCsException& )
{
return QString();
}
}
if ( format == "DM" )
return geo.toDegreesMinutes( precision, true, true );
else if ( format == "DMS" )
return geo.toDegreesMinutesSeconds( precision, true, true );
else
return geo.toString( precision );
}
else
{
// coordinates in map units
return point.toString( precision );
}
}
QString QgsCoordinateFormat::getDisplayString( const QgsPoint& p, const QgsCoordinateReferenceSystem& sSrs , Format format, const QString &epsg )
{
QgsPoint pTrans = QgsCoordinateTransformCache::instance()->transform( sSrs.authid(), epsg )->transform( p );
switch ( format )
{
case Default:
{
const QgsCoordinateReferenceSystem& crs = QgsCRSCache::instance()->crsByAuthId( epsg );
int prec = crs.mapUnits() == QGis::Degrees ? 4 : 0;
return QString( "%1, %2" ).arg( pTrans.x(), 0, 'f', prec ).arg( pTrans.y(), 0, 'f', prec );
}
case DegMinSec:
{
return pTrans.toDegreesMinutesSeconds( 1 );
}
case DegMin:
{
return pTrans.toDegreesMinutes( 3 );
}
case DecDeg:
{
return QString( "%1%2,%3%4" ).arg( pTrans.x(), 0, 'f', 5 ).arg( QChar( 176 ) )
.arg( pTrans.y(), 0, 'f', 5 ).arg( QChar( 176 ) );
}
case UTM:
{
QgsLatLonToUTM::UTMCoo coo = QgsLatLonToUTM::LL2UTM( pTrans );
return QString( "%1, %2 (zone %3%4)" ).arg( coo.easting ).arg( coo.northing ).arg( coo.zoneNumber ).arg( coo.zoneLetter );
}
case MGRS:
{
QgsLatLonToUTM::UTMCoo utm = QgsLatLonToUTM::LL2UTM( pTrans );
QgsLatLonToUTM::MGRSCoo mgrs = QgsLatLonToUTM::UTM2MGRS( utm );
if ( mgrs.letter100kID.isEmpty() )
return QString();
return QString( "%1%2%3 %4 %5" ).arg( mgrs.zoneNumber ).arg( mgrs.zoneLetter ).arg( mgrs.letter100kID ).arg( mgrs.easting, 5, 10, QChar( '0' ) ).arg( mgrs.northing, 5, 10, QChar( '0' ) );
}
}
return "";
}
void QgsStatusBarCoordinatesWidget::showMouseCoordinates( const QgsPoint & p )
{
if ( !mMapCanvas || mToggleExtentsViewButton->isChecked() )
{
return;
}
if ( mMapCanvas->mapUnits() == QGis::Degrees )
{
if ( !mMapCanvas->mapSettings().destinationCrs().isValid() )
return;
QgsPoint geo = p;
if ( !mMapCanvas->mapSettings().destinationCrs().geographicFlag() )
{
QgsCoordinateTransform ct( mMapCanvas->mapSettings().destinationCrs(), QgsCoordinateReferenceSystem( GEOSRID ) );
geo = ct.transform( p );
}
QString format = QgsProject::instance()->readEntry( "PositionPrecision", "/DegreeFormat", "D" );
if ( format == "DM" )
mLineEdit->setText( geo.toDegreesMinutes( mMousePrecisionDecimalPlaces ) );
else if ( format == "DMS" )
mLineEdit->setText( geo.toDegreesMinutesSeconds( mMousePrecisionDecimalPlaces ) );
else
mLineEdit->setText( geo.toString( mMousePrecisionDecimalPlaces ) );
}
else
{
mLineEdit->setText( p.toString( mMousePrecisionDecimalPlaces ) );
}
if ( mLineEdit->width() > mLineEdit->minimumWidth() )
{
mLineEdit->setMinimumWidth( mLineEdit->width() );
}
}