C++ (Cpp) MapOptions::cache Examples

Example #1

void GlobePlugin::setupMap()
{
  QSettings settings;
  QString cacheDirectory = settings.value( "cache/directory", QgsApplication::qgisSettingsDirPath() + "cache" ).toString();
  TMSCacheOptions cacheOptions;
  cacheOptions.setPath( cacheDirectory.toStdString() );

  MapOptions mapOptions;
  mapOptions.cache() = cacheOptions;
  osgEarth::Map *map = new osgEarth::Map( mapOptions );

  //Default image layer
  GDALOptions driverOptions;
  driverOptions.url() = QDir::cleanPath( QgsApplication::pkgDataPath() + "/globe/world.tif" ).toStdString();
  ImageLayerOptions layerOptions( "world", driverOptions );
  layerOptions.cacheEnabled() = false;
  map->addImageLayer( new osgEarth::ImageLayer( layerOptions ) );

  MapNodeOptions nodeOptions;
  //nodeOptions.proxySettings() =
  //nodeOptions.enableLighting() = false;

  //LoadingPolicy loadingPolicy( LoadingPolicy::MODE_SEQUENTIAL );
  TerrainOptions terrainOptions;
  //terrainOptions.loadingPolicy() = loadingPolicy;
  terrainOptions.compositingTechnique() = TerrainOptions::COMPOSITING_MULTITEXTURE_FFP;
  nodeOptions.setTerrainOptions( terrainOptions );

  // The MapNode will render the Map object in the scene graph.
  mMapNode = new osgEarth::MapNode( map, nodeOptions );

  //prefill cache
  if ( !QFile::exists( cacheDirectory + "/worldwind_srtm" ) )
  {
    copyFolder( QgsApplication::pkgDataPath() + "/globe/data/worldwind_srtm", cacheDirectory + "/globe/worldwind_srtm" );
  }

  mRootNode = new osg::Group();
  mRootNode->addChild( mMapNode );

  // Add layers to the map
  layersChanged();

  // model placement utils
  mElevationManager = new osgEarth::Util::ElevationManager( mMapNode->getMap() );
  mElevationManager->setTechnique( osgEarth::Util::ElevationManager::TECHNIQUE_GEOMETRIC );
  mElevationManager->setMaxTilesToCache( 50 );

  mObjectPlacer = new osgEarth::Util::ObjectPlacer( mMapNode );

  // place 3D model on point layer
  if ( mSettingsDialog.modelLayer() && !mSettingsDialog.modelPath().isEmpty() )
  {
    osg::Node* model = osgDB::readNodeFile( mSettingsDialog.modelPath().toStdString() );
    if ( model )
    {
      QgsVectorLayer* layer = mSettingsDialog.modelLayer();
      QgsAttributeList fetchAttributes;
      layer->select( fetchAttributes ); //TODO: select only visible features
      QgsFeature feature;
      while ( layer->nextFeature( feature ) )
      {
        QgsPoint point = feature.geometry()->asPoint();
        placeNode( model, point.y(), point.x() );
      }
    }
  }

}

Example #2

File: globe_plugin.cpp Project: AnAvidDeveloper/QGIS

void GlobePlugin::setupMap()
{
  QSettings settings;
  QString cacheDirectory = settings.value( "cache/directory", QgsApplication::qgisSettingsDirPath() + "cache" ).toString();

#if OSGEARTH_VERSION_GREATER_OR_EQUAL( 2, 2, 0 )
  FileSystemCacheOptions cacheOptions;
  cacheOptions.rootPath() = cacheDirectory.toStdString();
#else
  TMSCacheOptions cacheOptions;
  cacheOptions.setPath( cacheDirectory.toStdString() );
#endif

  MapOptions mapOptions;
  mapOptions.cache() = cacheOptions;
  osgEarth::Map *map = new osgEarth::Map( mapOptions );

  //Default image layer
  /*
  GDALOptions driverOptions;
  driverOptions.url() = QDir::cleanPath( QgsApplication::pkgDataPath() + "/globe/world.tif" ).toStdString();
  ImageLayerOptions layerOptions( "world", driverOptions );
  map->addImageLayer( new osgEarth::ImageLayer( layerOptions ) );
  */

  MapNodeOptions nodeOptions;
  //nodeOptions.proxySettings() =
  //nodeOptions.enableLighting() = false;

  //LoadingPolicy loadingPolicy( LoadingPolicy::MODE_SEQUENTIAL );
  TerrainOptions terrainOptions;
  //terrainOptions.loadingPolicy() = loadingPolicy;
  terrainOptions.compositingTechnique() = TerrainOptions::COMPOSITING_MULTITEXTURE_FFP;
  //terrainOptions.lodFallOff() = 6.0;
  nodeOptions.setTerrainOptions( terrainOptions );

  // The MapNode will render the Map object in the scene graph.
  mMapNode = new osgEarth::MapNode( map, nodeOptions );

  if ( settings.value( "/Plugin-Globe/baseLayerEnabled", true ).toBool() )
  {
    setBaseMap( settings.value( "/Plugin-Globe/baseLayerURL", "http://readymap.org/readymap/tiles/1.0.0/7/" ).toString() );
  }

  mRootNode = new osg::Group();
  mRootNode->addChild( mMapNode );

  // Add layers to the map
  imageLayersChanged();
  elevationLayersChanged();

  // model placement utils
#ifdef HAVE_OSGEARTH_ELEVATION_QUERY
#else
  mElevationManager = new osgEarth::Util::ElevationManager( mMapNode->getMap() );
  mElevationManager->setTechnique( osgEarth::Util::ElevationManager::TECHNIQUE_GEOMETRIC );
  mElevationManager->setMaxTilesToCache( 50 );

  mObjectPlacer = new osgEarth::Util::ObjectPlacer( mMapNode );

  // place 3D model on point layer
  if ( mSettingsDialog->modelLayer() && !mSettingsDialog->modelPath().isEmpty() )
  {
    osg::Node* model = osgDB::readNodeFile( mSettingsDialog->modelPath().toStdString() );
    if ( model )
    {
      QgsVectorLayer* layer = mSettingsDialog->modelLayer();
      QgsFeatureIterator fit = layer->getFeatures( QgsFeatureRequest().setSubsetOfAttributes( QgsAttributeList() ) ); //TODO: select only visible features
      QgsFeature feature;
      while ( fit.nextFeature( feature ) )
      {
        QgsPoint point = feature.geometry()->asPoint();
        placeNode( model, point.y(), point.x() );
      }
    }
  }
#endif

}