C++ (Cpp) identifyRasterLayer示例

示例#1

文件： qgsmaptoolidentify.cpp 项目： Cracert/Quantum-GIS

void QgsMapToolIdentify::formatChanged( QgsRasterLayer *layer )
{
  QList<IdentifyResult> results;
  if ( identifyRasterLayer( &results, layer, mLastPoint, mLastExtent, mLastMapUnitsPerPixel ) )
  {
    emit changedRasterResults( results );
  }
}

示例#2

文件： qgsmaptoolidentify.cpp 项目： nicanor-b/QGIS

bool QgsMapToolIdentify::identifyLayer( QList<IdentifyResult> *results, QgsMapLayer *layer, const QgsPoint& point, const QgsRectangle& viewExtent, double mapUnitsPerPixel, const LayerType& layerType )
{
  if ( layer->type() == QgsMapLayer::RasterLayer && layerType.testFlag( RasterLayer ) )
  {
    return identifyRasterLayer( results, qobject_cast<QgsRasterLayer *>( layer ), point, viewExtent, mapUnitsPerPixel );
  }
  else if ( layer->type() == QgsMapLayer::VectorLayer && layerType.testFlag( VectorLayer ) )
  {
    return identifyVectorLayer( results, qobject_cast<QgsVectorLayer *>( layer ), point );
  }
  else
  {
    return false;
  }
}

示例#3

文件： qgsmaptoolidentify.cpp 项目： MatMatt/Quantum-GIS

bool QgsMapToolIdentify::identifyLayer( QList<IdentifyResult> *results, QgsMapLayer *layer, QgsPoint point, QgsRectangle viewExtent, double mapUnitsPerPixel, LayerType layerType )
{
  if ( layer->type() == QgsMapLayer::RasterLayer && ( layerType == AllLayers || layerType == RasterLayer ) )
  {
    return identifyRasterLayer( results, qobject_cast<QgsRasterLayer *>( layer ), point, viewExtent, mapUnitsPerPixel );
  }
  else if ( layer->type() == QgsMapLayer::VectorLayer && ( layerType == AllLayers || layerType == VectorLayer ) )
  {
    return identifyVectorLayer( results, qobject_cast<QgsVectorLayer *>( layer ), point );
  }
  else
  {
    return false;
  }
}

示例#4

文件： qgsmaptoolidentify.cpp 项目： brushtyler/Quantum-GIS

bool QgsMapToolIdentify::identifyLayer( QgsMapLayer *layer, int x, int y )
{
  bool res = false;

  if ( layer->type() == QgsMapLayer::RasterLayer )
  {
    res = identifyRasterLayer( qobject_cast<QgsRasterLayer *>( layer ), x, y );
  }
  else
  {
    res = identifyVectorLayer( qobject_cast<QgsVectorLayer *>( layer ), x, y );
  }

  return res;
}