QGIS API Documentation  2.7.0-Master
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Class Hierarchy

Go to the graphical class hierarchy

This inheritance list is sorted roughly, but not completely, alphabetically:
[detail level 12345]
 Cpal::_chain
 Cpal::_cHullBox
 Cpal::_cross
 Cpal::_elementary_transformation
 Cpal::_featCbackCtx
 Cpal::_filterContext
 C_nmeaGPGGAGGA packet information structure (Global Positioning System Fix Data)
 C_nmeaGPGSAGSA packet information structure (Satellite status)
 C_nmeaGPGSVGSV packet information structure (Satellites in view)
 C_nmeaGPRMCRMC packet information structure (Recommended Minimum sentence C)
 C_nmeaGPVTGVTG packet information structure (Track made good and ground speed)
 C_nmeaINFOSummary GPS information from all parsed packets, used also for generating NMEA stream
 C_nmeaPARSER
 C_nmeaPOSPosition data in fractional degrees or radians
 C_nmeaPROPERTY
 C_nmeaSATELLITEInformation about satellite
 C_nmeaSATINFOInformation about all satellites in view
 C_nmeaTIMEDate and time data
 Cpal::_nokContext
 Cpal::_subpart
 Cpal::_Triple
 CQgsActionMenu::ActionData
 CQgsIdentifyMenu::ActionData
 CQgsActionMenu::ActionData::aid
 CQgsMapCanvas::CanvasProperties
 Cpal::Cell< Type >
 Cpal::ChainContext
 Cpal::LabelInfo::CharacterInfo
 CQgsColorRampShader::ColorRampItem
 Cpal::CostCalculator
 Cpal::LabelPosition::CountContext
 CQgsDataDefinedSymbolDialog::DataDefinedSymbolEntry
 CQgsDatumTransformStore::Entry
 CQgsGeometry::Error
 CQgsMapRendererJob::Error
 Cexception
 CQgsExpressionFieldBuffer::ExpressionField
 Cpal::FalpContext
 Cpal::FeatsFor usage in problem solving algorithm
 Cpal::Feature
 CQgsFeatureListModel::FeatureInfo
 CQgsRuleBasedRendererV2::FeatureToRender
 CQgsVectorLayerFeatureIterator::FetchJoinInfoJoin information prepared for fast attribute id mapping in QgsVectorLayerJoinBuffer::updateFeatureAttributes()
 CQgsFields::Field
 CFieldSorter
 Cpal::Ft
 CQgsExpression::FunctionA abstract base class for defining QgsExpression functions
 CGEOSException
 CGEOSInit
 CQgsVectorLayer::GroupData
 CHalfEdge
 Cpal::HashTable< Data >
 Cpal::HashTable< pal::Feature * >
 Cpal::HashTable< pal::LinkedList< pal::FeaturePart * > * >
 CIDataStream
 CQgsMapToolIdentify::IdentifyResult
 CQgsProject::Imp
 Cpal::InternalExceptionVarious Exceptions
 CQgsExpression::Interval
 CQgsConnectionPoolGroup< T >::Item
 CQgsLayerTreeModelLegendNode::ItemContext
 CQgsLayerTreeModelLegendNode::ItemMetrics
 CIVisitor
 Cpal::LabelInfoOptional additional info about label (for curved labels)
 CQgsLabel::labelpoint
 Cpal::LabelPositionLabelPositon is a candidate feature label position
 Cpal::LayerA layer of spacial entites
 CQgsInterpolator::LayerDataA layer together with the information about interpolation attribute / z-coordinate interpolation and the type (point, structure line, breakline)
 CLayerPropertiesWidget
 CLayerRenderJobStructure keeping low-level rendering job information
 CLine3DThis class represents a line
 Cpal::LinkedList< Type >
 Cpal::LinkedList< char * >
 Cpal::LinkedList< int >
 Cpal::LinkedList< pal::_elementary_transformation * >
 Cpal::LinkedList< pal::Feats * >
 Cpal::LinkedList< pal::Feature * >
 Cpal::LinkedList< pal::FeaturePart * >
 CQgsVectorFileWriter::MetaData
 CMyLine
 CQgsVectorDataProvider::NativeType
 CQgsRasterNuller::NoData
 CNodeNode is a class used by Line3D
 CQgsExpression::Node
 CQgsExpression::NodeList
 CQgsVectorFileWriter::Option
 Cpal::PalPal main class
 Cpal::PalExceptionVarious Exceptions
 Cpal::PalGeometryInterface that allows Pal to access user's geometries
 Cpal::PalStatSummury of problem
 CParametricLineParametricLine is an Interface for parametric lines
 Cpal::Point
 CPoint3DPoint3D is a class to represent a three dimensional point
 Cpal::PointSet
 Cpal::PolygonCostCalculatorData structure to compute polygon's candidates costs
 Cpal::PriorityQueue
 CHistogramItem::PrivateData
 Cpal::ProblemRepresent a problem
 Cpal::LabelPosition::PruneCtx
 CQAbstractItemDelegate
 CQAbstractItemModel
 CQAbstractListModel
 CQAbstractProxyModel
 CQAbstractTableModel
 CQAction
 CQApplication
 CQComboBox
 CQDateTimeEdit
 CQDial
 CQDialog
 CQDoubleSpinBox
 CQEvent
 CQFileDialog
 CQFrame
 CQFutureWatcher
 CQGisGlobal constants for use throughout the application
 CQgisPluginAbstract base class from which all plugins must inherit
 CQGraphicsEffect
 CQGraphicsItem
 CQGraphicsRectItem
 CQGraphicsScene
 CQGraphicsView
 CQGroupBox
 CQgsAbstractCacheIndexAbstract base class for cache indices
 CQgsAbstractFeatureIteratorInternal feature iterator to be implemented within data providers
 CQgsAbstractFeatureSourceBase class that can be used for any class that is capable of returning features
 CQgsAbstractGeometrySimplifierAbstract base class for simplify geometries using a specific algorithm
 CQgsActionUtility class that encapsulates an action based on vector attributes
 CQgsArcProperter
 CQgsAttributeActionStorage and management of actions associated with Qgis layer attributes
 CQgsAttributeEditorContextThis class contains context information for attribute editor widgets
 CQgsAttributeFormInterface
 CQgsAttributeLoadValues
 CQgsCategorizedSymbolRendererV2Widget
 CQgsCharacterSelectorBase
 CQgsCheckBoxConfigDlgBase
 CQgsClipperA class to trim lines and polygons to within a rectangular region
 CQgsColorBrewerPalette
 CQgsColorDialogBase
 CQgsColorGridActionA color swatch grid which can be embedded into a menu
 CQgsColorSchemeAbstract base class for color schemes
 CQgsColorSchemeRegistryRegistry of color schemes
 CQgsComposerAttributeTableCompareHelper class for sorting tables, takes into account sorting column and ascending / descending
 CQgsComposerAttributeTableCompareV2Helper class for sorting tables, takes into account sorting column and ascending / descending
 CQgsComposerLegendStyleComposer legend components style
 CQgsComposerMapItemStackA collection of map items which are drawn above the map content in a QgsComposerMap
 CQgsComposerUtilsUtilities for compositions
 CQgsConnectionPool< T, T_Group >Template class responsible for keeping a pool of open connections
 CQgsConnectionPoolGroup< T >
 CQgsConstWkbPtr
 CQgsContrastEnhancementManipulates raster pixel values so that they enhanceContrast or clip into a specified numerical range according to the specified ContrastEnhancementAlgorithm
 CQgsContrastEnhancementFunctionA contrast enhancement funcion is the base class for all raster contrast enhancements
 CQgsCoordinateReferenceSystemClass for storing a coordinate reference system (CRS)
 CQgsCptCityArchive
 CQgsCptCityColorRampV2DialogBase
 CQgsCredentialsInterface for requesting credentials in QGIS in GUI independent way
 CQgsCRSCache
 CQgsDartMeasurement
 CQgsDashSpaceDialogBase
 CQgsDataDefinedA container class for data source field mapping or expression
 CQgsDataDefinedSymbolDialog
 CQgsDataSourceURIClass for storing the component parts of a PostgreSQL/RDBMS datasource URI
 CQgsDateTimeEditConfig
 CQgsDatumTransformDialogBase
 CQgsDatumTransformStoreKeeps track of datum transformations as chosen by the user
 CQgsDetailedItemDataThis class is the data only representation of a QgsDetailedItemWidget, designed to be used in custom views
 CQgsDetailedItemWidgetBase
 CQgsDiagramBase class for all diagram types
 CQgsDiagramInterpolationSettings
 CQgsDiagramLayerSettings
 CQgsDiagramRendererV2Returns diagram settings for a feature
 CQgsDiagramSettings
 CQgsDistanceAreaGeneral purpose distance and area calculator
 CQgsDualViewBase
 CQgsDummyConfigDlgBase
 CQgsDxfExport
 CQgsEdgeProperterQgsEdgeProperter is a strategy pattern
 CQgsEditorWidgetFactoryEvery attribute editor widget needs a factory, which inherits this class
 CQgsErrorQgsError is container for error messages (report)
 CQgsErrorDialogBase
 CQgsErrorMessageQgsErrorMessage represents single error message
 CQgsExceptionDefines a qgis exception class
 CQgsExpressionClass for parsing and evaluation of expressions (formerly called "search strings")
 CQgsExpressionBuilderDialogBase
 CQgsExpressionBuilderWidgetBase
 CQgsExpressionFieldBufferBuffers information about expression fields for a vector layer
 CQgsExpressionSelectionDialogBase
 CQgsExtentGroupBoxWidget
 CQgsFeatureThe feature class encapsulates a single feature including its id, geometry and a list of field/values attributes
 CQgsFeatureIteratorWrapper for iterator of features from vector data provider or vector layer
 CQgsFeatureModel
 CQgsFeatureRendererV2
 CQgsFeatureRequestThis class wraps a request for features to a vector layer (or directly its vector data provider)
 CQgsFeatureSelectionDlg
 CQgsFeatureStoreContainer for features with the same fields and crs
 CQgsFieldEncapsulate a field in an attribute table or data source
 CQgsFieldsContainer of fields for a vector layer
 CQgsFontUtils
 CQgsGenericProjectionSelectorBase
 CQgsGeometry
 CQgsGeometryAnalyzerThe QGis class provides vector geometry analysis functions
 CQgsGeometryCache
 CQgsGmlFeatureClass
 CQgsGPSConnectionRegistryA singleton class to register / unregister existing GPS connections such that the information is available to all classes and plugins
 CQgsGPSInformation
 CQgsGradientStop
 CQgsGraduatedSymbolRendererV2Widget
 CQgsGraphMathematics graph representation
 CQgsGraphAnalyzerThe QGis class provides graph analysis functions
 CQgsGraphArcThis class implement a graph edge
 CQgsGraphBuilderInterfaceDetermine interface for creating a graph
 CQgsGraphVertexThis class implement a graph vertex
 CQgsGridFileWriterA class that does interpolation to a grid and writes the results to an ascii grid
 CQgsHeatmapRendererWidgetBase
 CQgsInterpolatorInterface class for interpolations
 CQgsInvertedPolygonRendererWidgetBase
 CQgsLabelA class to render labels
 CQgsLabelAttributesA class to store attributes needed for label rendering
 CQgsLabelCandidate
 CQgsLabelComponentMaintains current state of more grainular and temporal values when creating/painting component parts of an individual label (e.g
 CQgsLabelingEngineInterfaceLabeling engine interface
 CQgsLabelingResultsClass that stores computed placement from labeling engine
 CQgsLabelPosition
 CQgsLabelSearchTreeA class to query the labeling structure at a given point (small wraper around pal RTree class)
 CQgsLayerCoordinateTransform
 CQgsLayerTreeUtilsAssorted functions for dealing with layer trees
 CQgsLayerTreeViewMenuProviderImplementation of this interface can be implemented to allow QgsLayerTreeView instance to provide custom context menus (opened upon right-click)
 CQgsLegacyHelpers
 CQgsLegendRendererHandles automatic layout and rendering of legend
 CQgsLegendSettingsStores the appearance and layout settings for legend drawing with QgsLegendRenderer
 CQgsLegendSymbolItemV2The class stores information about one class/rule of a vector layer renderer in a unified way that can be used by legend model for rendering of legend
 CQgsLoggerQgsLogger is a class to print debug/warning/error messages to the console
 CQgsLUDialogBase
 CQgsManageConnectionsDialogBase
 CQgsMapCanvasLayerA class that stores visibility and presence in overview flags together with pointer to the layer
 CQgsMapCanvasSnapperThis class reads the snapping properties from the current project and configures a QgsSnapper to perform the snapping
 CQgsMapHitTestClass that runs a hit test with given map settings
 CQgsMapLayerLegendUtilsMiscellaneous utility functions for handling of map layer legend
 CQgsMapLayerRendererBase class for utility classes that encapsulate information necessary for rendering of map layers
 CQgsMapSettingsConfiguration for rendering of the map
 CQgsMapTipA maptip is a class to display a tip on a map canvas when a mouse is hovered over a feature
 CQgsMapToPixelPerform transforms between map coordinates and device coordinates
 CQgsMapUnitScale
 CQgsMapUnitScaleDialog
 CQgsMessageLogViewer
 CQgsMessageOutputInterface for showing messages from QGIS in GUI independent way
 CQgsMessageViewer
 CQgsMimeDataUtils
 CQgsMultiBandColorRendererWidgetBase
 CQgsMultiRenderCheckerThis class allows checking rendered images against comparison images
 CQgsNewHttpConnectionBase
 CQgsNewMemoryLayerDialogBase
 CQgsNewVectorLayerDialogBase
 CQgsNineCellFilterBase class for raster analysis methods that work with a 3x3 cell filter and calculate the value of each cell based on the cell value and the eight neighbour cells
 CQgsObjectCustomPropertiesSimple key-value store (keys = strings, values = variants) that supports loading/saving to/from XML in
 CQgsOgcUtilsVarious utility functions for conversion between OGC (Open Geospatial Consortium) standards and QGIS internal representations
 CQgsOldSymbolMeta
 CQgsOSMDatabaseClass that encapsulates access to OpenStreetMap data stored in a database previously imported from XML file
 CQgsOSMElementElements (also data primitives) are the basic components in OpenStreetMap from which everything else is defined
 CQgsOSMElementID
 CQgsOSMNodeIteratorEncapsulate iteration over table of nodes
 CQgsOSMTagsThis class is a container of tags for a node, way or a relation
 CQgsOSMWayIteratorEncapsulate iteration over table of ways
 CQgsOverlayAnalyzerThe QGis class provides vector overlay analysis functions
 CQgsOWSSourceSelectBase
 CQgsPalettedRendererWidgetBase
 CQgsPalLayerSettings
 CQgsPhotoConfigDlgBase
 CQgsPluginLayerRegistryRegistry of plugin layers types
 CQgsPluginLayerTypeClass for creating plugin specific layers
 CQgsPointA class to represent a point
 CQgsPointCompare
 CQgsPointDisplacementRendererWidgetBase
 CQgsPointSampleCreates random points in polygons / multipolygons
 CQgsProjectBadLayerHandlerInterface for classes that handle missing layer files when reading project file
 CQgsProjectFileTransform
 CQgsProjectionSelectorBase
 CQgsProjectVersionA class to describe the version of a project
 CQgsPropertyAn Abstract Base Class for QGIS project property hierarchies
 CQgsProviderMetadataHolds data provider key, description, and associated shared library file information
 CQgsProviderRegistryA registry / canonical manager of data providers
 CQgsPythonRunnerUtility class for running python commands from various parts of QGIS
 CQgsQueryBuilderBase
 CQgsRangeConfigDlgBase
 CQgsRasterRaster namespace
 CQgsRasterBandStatsThe RasterBandStats struct is a container for statistics about a single raster band
 CQgsRasterBlockRaster data container
 CQgsRasterCalcNode
 CQgsRasterCalculatorRaster calculator class
 CQgsRasterCalculatorEntry
 CQgsRasterCheckerThis is a helper class for unit tests that need to write an image and compare it to an expected result or render time
 CQgsRasterDrawerThe drawing pipe for raster layers
 CQgsRasterFileWriterThe raster file writer which allows you to save a raster to a new file
 CQgsRasterFormatSaveOptionsWidgetBase
 CQgsRasterHistogramThe QgsRasterHistogram is a container for histogram of a single raster band
 CQgsRasterHistogramWidgetBase
 CQgsRasterIdentifyResultRaster identify results container
 CQgsRasterInterfaceBase class for processing filters like renderers, reprojector, resampler etc
 CQgsRasterIteratorIterator for sequentially processing raster cells
 CQgsRasterLayerSaveAsDialogBase
 CQgsRasterMatrix
 CQgsRasterMinMaxWidgetBase
 CQgsRasterPipeBase class for processing modules
 CQgsRasterPyramidThis struct is used to store pyramid info for the raster layer
 CQgsRasterPyramidsOptionsWidgetBase
 CQgsRasterRangeRaster values range container
 CQgsRasterRendererRegistryRegistry for raster renderers
 CQgsRasterRendererRegistryEntryRegistry for raster renderer entries
 CQgsRasterResamplerInterface for resampling rasters (e.g
 CQgsRasterShaderInterface for all raster shaders
 CQgsRasterShaderFunctionThe raster shade function applies a shader to a pixel at render time - typically used to render grayscale images as false color
 CQgsRasterTransparencyDefines the list of pixel values to be considered as transparent or semi transparent when rendering rasters
 CQgsRasterViewPortThis class provides details of the viewable area that a raster will be rendered into
 CQgsRectangleA rectangle specified with double values
 CQgsRelation
 CQgsRelationAddDlgBase
 CQgsRelationManagerDialogBase
 CQgsReliefProduces coloured relief rasters from DEM
 CQgsRelReferenceConfigDlgBase
 CQgsRenderCheckerThis is a helper class for unit tests that need to write an image and compare it to an expected result or render time
 CQgsRenderContextContains information about the context of a rendering operation
 CQgsRendererCategoryV2
 CQgsRendererRangeV2
 CQgsRendererRangeV2LabelFormat
 CQgsRendererRulePropsDialog
 CQgsRendererV2AbstractMetadataStores metadata about one renderer class
 CQgsRendererV2PropsDialogBase
 CQgsRendererV2RegistryRegistry of renderers
 CQgsRuleBasedRendererV2Count
 CQgsRuleBasedRendererV2Widget
 CQgsSatelliteInfo
 CQgsScaleBarStyleAbstraction of composer scale bar style
 CQgsScaleCalculatorCalculates scale for a given combination of canvas size, map extent, and monitor dpi
 CQgsScaleUtils
 CQgsScopeLogger
 CQgsSimplifyMethodThis class contains information about how to simplify geometries fetched from a QgsFeatureIterator
 CQgsSingleBandGrayRendererWidgetBase
 CQgsSingleBandPseudoColorRendererWidgetBase
 CQgsSingleton< T >
 CQgsSingleton< QgsCoordinateTransformCache >
 CQgsSingleton< QgsMapLayerRegistry >
 CQgsSingleton< QgsNetworkAccessManager >
 CQgsSmartGroupConditionWidget
 CQgsSmartGroupEditorDialogBase
 CQgsSnapperA class that allows advanced snapping operations on a set of vector layers
 CQgsSnappingResultRepresents the result of a snapping operation
 CQgsSpatialIndex
 CQgsStyleV2ExportImportDialogBase
 CQgsStyleV2ManagerDialogBase
 CQgsSublayersDialogBase
 CQgsSvgCacheEntry
 CQgsSymbolLayerV2
 CQgsSymbolLayerV2AbstractMetadataStores metadata about one symbol layer class
 CQgsSymbolLayerV2RegistryRegistry of available symbol layer classes
 CQgsSymbolLayerV2Utils
 CQgsSymbolLevelsV2DialogBase
 CQgsSymbologyV2ConversionThis class is not a part of public API, it is intended only for compatibility with older versions of QGIS (1.x)
 CQgsSymbolV2
 CQgsSymbolV2LevelItem
 CQgsSymbolV2RenderContext
 CQgsSymbolV2SelectorDialogBase
 CQgsTextEditConfigDlg
 CQgsToleranceThis is the class is providing tolerance value in map unit values
 CQgsTransectSampleA class for the creation of transect sample lines based on a set of strata polygons and baselines
 CQgsUniqueValuesConfigDlgBase
 CQgsUnitSelectionWidget
 CQgsValueMapWidget
 CQgsValueRelationConfigDlgBase
 CQgsVectorA class to represent a vector
 CQgsVectorColorBrewerColorRampV2DialogBase
 CQgsVectorColorRampV2
 CQgsVectorFileWriterA convenience class for writing vector files to disk
 CQgsVectorGradientColorRampV2DialogBase
 CQgsVectorJoinInfo
 CQgsVectorLayerEditUtils
 CQgsVectorLayerImportA convenience class for writing vector files to disk
 CQgsVectorLayerToolsMethods in this class are used to handle basic operations on vector layers
 CQgsVectorRandomColorRampV2DialogBase
 CQgsVectorSimplifyMethodThis class contains information how to simplify geometries fetched from a vector layer
 CQgsWebViewWidgetConfigDlgBase
 CQgsWkbPtr
 CQgsXmlUtilsAssorted helper methods for reading and writing chunks of XML
 CQgsZonalStatisticsA class that calculates raster statistics (count, sum, mean) for a polygon or multipolygon layer and appends the results as attributes
 CQItemDelegate
 CQItemSelectionModel
 CQLineEdit
 CQListView
 CQMenu
 CQNetworkAccessManager
 CQNetworkProxyFactory
 CQObject
 CQPaintDevice
 CQPaintEngine
 CQPair
 CQProxyStyle
 CQPushButton
 CQsciScintilla
 CQSharedData
 CQSlider
 CQSortFilterProxyModel
 CQSpinBox
 CQStackedWidget
 CQStandardItem
 CQStandardItemModel
 CQSyntaxHighlighter
 CQTableView
 CQThread
 CQToolButton
 CQTreeView
 CQTreeWidget
 CQTreeWidgetItem
 CQUndoCommand
 CQValidator
 CQWidget
 CQWidgetAction
 CQwtPlotItem
 CQgsVectorLayer::RangeData
 CQgsRelief::ReliefColor
 CQgsRuleBasedRendererV2::RenderJob
 CQgsRuleBasedRendererV2::RenderLevel
 Cpal::RTree< DATATYPE, ELEMTYPE, NUMDIMS, ELEMTYPEREAL, TMAXNODES, TMINNODES >
 Cpal::RTree< pal::FeaturePart *, double, 2, double, 8, 4 >
 Cpal::RTree< pal::LabelPosition *, double, 2, double >
 Cpal::RTree< pal::PointSet *, double, 2, double >
 Cpal::RTree< QgsLabelPosition *, double, 2, double >
 CQgsRuleBasedRendererV2::RuleThis class keeps data about a rules for rule-based renderer
 Cpal::SimpleMutex
 CQgsSnapper::SnapLayer
 Cpal::Sol
 Cpal::SubPartContext
 CQgsOWSSourceSelect::SupportedFormatFormats supported by provider
 CSymbolsListWidget
 CQgsVectorLayer::TabData
 CTiePointInfo
 CQgsRasterTransparency::TransparentSingleValuePixel
 CQgsRasterTransparency::TransparentThreeValuePixel
 CTriangleInterpolatorThis is an interface for interpolator classes for triangulations
 CTriangulationInterface for Triangulation classes
 CUi_QgsCredentialDialog
 Cpal::UpdateContext
 CQgsMimeDataUtils::Uri
 CQgsVectorLayer::ValueRelationData
 CVector3DClass Vector3D represents a 3D-Vector, capable to store x-,y- and z-coordinates in double values
 CvertexData
 CQgsExpression::VisitorSupport for visitor pattern - algorithms dealing with the expressions may be implemented without modifying the Node classes
 CQgsExpression::WhenThen
 CWidgetCentroidFill
 CWidgetEllipseBase
 CWidgetFontMarker
 CWidgetGradientFill
 CWidgetLinePatternFill
 CWidgetMarkerLine
 CWidgetPointPatternFill
 CWidgetRasterFill
 CWidgetShapeburstFill
 CWidgetSimpleFill
 CWidgetSimpleLine
 CWidgetSimpleMarker
 CWidgetSVGFill
 CWidgetSvgMarker
 CWidgetSvgSelector
 CWidgetVectorFieldBase