C++ (Cpp) QgsVertexMarker示例

示例#1

文件： qgsselectedfeature.cpp 项目： Nald/Quantum-GIS

void QgsSelectedFeature::validateGeometry( QgsGeometry *g )
{
  QSettings settings;
  if ( settings.value( "/qgis/digitizing/validate_geometries", 1 ).toInt() == 0 )
    return;

  if ( !g )
    g = mGeometry;

  mTip.clear();

  if ( mValidator )
  {
    mValidator->stop();
    mValidator->wait();
    mValidator->deleteLater();
    mValidator = 0;
  }

  mGeomErrors.clear();
  while ( !mGeomErrorMarkers.isEmpty() )
  {
    QgsVertexMarker *vm = mGeomErrorMarkers.takeFirst();
    QgsDebugMsg( "deleting " + vm->toolTip() );
    delete vm;
  }

  mValidator = new QgsGeometryValidator( g );
  connect( mValidator, SIGNAL( errorFound( QgsGeometry::Error ) ), this, SLOT( addError( QgsGeometry::Error ) ) );
  connect( mValidator, SIGNAL( finished() ), this, SLOT( validationFinished() ) );
  mValidator->start();

  QStatusBar *sb = QgisApp::instance()->statusBar();
  sb->showMessage( tr( "Validation started." ) );
}

示例#2

文件： qgsmaptoolcapture.cpp 项目： KISRDevelopment/QGIS

void QgsMapToolCapture::addError( QgsGeometry::Error e )
{
  mGeomErrors << e;
  QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( mCanvas->currentLayer() );
  if ( !vlayer )
    return;

  if ( !mTip.isEmpty() )
    mTip += "\n";

  mTip += e.what();

  if ( e.hasWhere() )
  {
    QgsVertexMarker *vm =  new QgsVertexMarker( mCanvas );
    vm->setCenter( mCanvas->mapSettings().layerToMapCoordinates( vlayer, e.where() ) );
    vm->setIconType( QgsVertexMarker::ICON_X );
    vm->setPenWidth( 2 );
    vm->setToolTip( e.what() );
    vm->setColor( Qt::green );
    vm->setZValue( vm->zValue() + 1 );
    mGeomErrorMarkers << vm;
  }

  QStatusBar *sb = QgisApp::instance()->statusBar();
  sb->showMessage( e.what() );
  if ( !mTip.isEmpty() )
    sb->setToolTip( mTip );
}

示例#3

文件： qgslockedfeature.cpp 项目： dmarteau/QGIS

void QgsLockedFeature::validateGeometry( QgsGeometry *g )
{
  QgsSettings settings;
  if ( settings.value( QStringLiteral( "qgis/digitizing/validate_geometries" ), 1 ).toInt() == 0 )
    return;

  if ( !g )
    g = mGeometry;

  mTip.clear();

  if ( mValidator )
  {
    mValidator->stop();
    mValidator->wait();
    mValidator->deleteLater();
    mValidator = nullptr;
  }

  mGeomErrors.clear();
  while ( !mGeomErrorMarkers.isEmpty() )
  {
    QgsVertexMarker *vm = mGeomErrorMarkers.takeFirst();
    QgsDebugMsg( "deleting " + vm->toolTip() );
    delete vm;
  }

  QgsGeometry::ValidationMethod method = QgsGeometry::ValidatorQgisInternal;
  if ( settings.value( QStringLiteral( "qgis/digitizing/validate_geometries" ), 1 ).toInt() == 2 )
    method = QgsGeometry::ValidatorGeos;
  mValidator = new QgsGeometryValidator( *g, nullptr, method );
  connect( mValidator, &QgsGeometryValidator::errorFound, this, &QgsLockedFeature::addError );
  connect( mValidator, &QThread::finished, this, &QgsLockedFeature::validationFinished );
  mValidator->start();

  QgsStatusBar *sb = QgisApp::instance()->statusBarIface();
  sb->showMessage( tr( "Validation started." ) );
}

示例#4

文件： qgsmaptoolcapture.cpp 项目： alexbruy/QGIS

void QgsMapToolCapture::addError( const QgsGeometry::Error &e )
{
  mGeomErrors << e;
  QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( mCanvas->currentLayer() );
  if ( !vlayer )
    return;

  if ( e.hasWhere() )
  {
    QgsVertexMarker *vm = new QgsVertexMarker( mCanvas );
    vm->setCenter( mCanvas->mapSettings().layerToMapCoordinates( vlayer, e.where() ) );
    vm->setIconType( QgsVertexMarker::ICON_X );
    vm->setPenWidth( 2 );
    vm->setToolTip( e.what() );
    vm->setColor( Qt::green );
    vm->setZValue( vm->zValue() + 1 );
    mGeomErrorMarkers << vm;
  }
}

示例#5

文件： qgslockedfeature.cpp 项目： dmarteau/QGIS

void QgsLockedFeature::addError( QgsGeometry::Error e )
{
  mGeomErrors << e;
  if ( !mTip.isEmpty() )
    mTip += '\n';
  mTip += e.what();

  if ( e.hasWhere() )
  {
    QgsVertexMarker *marker = new QgsVertexMarker( mCanvas );
    marker->setCenter( mCanvas->mapSettings().layerToMapCoordinates( mLayer, e.where() ) );
    marker->setIconType( QgsVertexMarker::ICON_X );
    marker->setColor( Qt::green );
    marker->setZValue( marker->zValue() + 1 );
    marker->setIconSize( QgsGuiUtils::scaleIconSize( 10 ) );
    marker->setPenWidth( QgsGuiUtils::scaleIconSize( 2 ) );
    marker->setToolTip( e.what() );
    mGeomErrorMarkers << marker;
  }

  QgsStatusBar *sb = QgisApp::instance()->statusBarIface();
  sb->showMessage( e.what() );
  sb->setToolTip( mTip );
}

示例#6

文件： qgsselectedfeature.cpp 项目： Nald/Quantum-GIS

void QgsSelectedFeature::addError( QgsGeometry::Error e )
{
  mGeomErrors << e;
  if ( !mTip.isEmpty() )
    mTip += "\n";
  mTip += e.what();

  if ( e.hasWhere() )
  {
    QgsVertexMarker *marker = new QgsVertexMarker( mCanvas );
    marker->setCenter( mCanvas->mapRenderer()->layerToMapCoordinates( mVlayer, e.where() ) );
    marker->setIconType( QgsVertexMarker::ICON_X );
    marker->setColor( Qt::green );
    marker->setZValue( marker->zValue() + 1 );
    marker->setPenWidth( 2 );
    marker->setToolTip( e.what() );
    mGeomErrorMarkers << marker;
  }

  QStatusBar *sb = QgisApp::instance()->statusBar();
  sb->showMessage( e.what() );
  sb->setToolTip( mTip );
}