core

• 3D

• Annotations and Annotation Layers

• Attribute Form Configuration

• Authentication Framework

• Browser

• Classification Methods

• Coordinate Systems and Transformations

• DXF Exports

• Data Providers

• Data Providers - ArcGIS

• Data Providers - Memory

• Data Providers - OGC Sensorthings

• Diagrams and Charts

• Elevation Handling

• Expression Engine

• External Storage

• Field Value Formating

• GPS and GNSS

• Geocoding

• Geometry

• Label Callouts

• Labeling

• Labeling - Advanced Rules

• Layer Tree and Legends

• Locator Bar

• Map Actions

• Map Rendering

• Mesh Layers

• Metadata Handling

• Network Access

• Numeric Formats

• PDF Rendering

• Paint Effects

• Painting Operations

• Plot and Graph Rendering

• Point Cloud Layers

• Print Layouts and Reports

• Processing Framework

• Processing Framework - Models

• QGIS Projects

• Raster Layers

• Scale Bars

• Sensor Handling

• Settings Handling

• Symbology and Vector Renderers

• Text Rendering

• Tiled Scene Layers

• Validity Checks

• Vector Layers

• Vector Tile Layers

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ProjectDirtyBlocker	Context manager used to block project setDirty calls.
Qgis	The Qgis class provides global constants for use throughout the application.
QgsAbstractCacheIndex	Abstract base class for cache indices
QgsAbstractContentCacheBase	A QObject derived base class for QgsAbstractContentCache.
QgsAbstractContentCacheEntry	Base class for entries in a QgsAbstractContentCache.
QgsAbstractFeatureIterator	Internal feature iterator to be implemented within data providers
QgsAbstractFeatureIteratorFromSourceQgsVectorLayerFeatureSourceBase	Helper template that cares of two things: 1. automatic deletion of source if owned by iterator, 2. notification of open/closed iterator.
QgsAbstractFeatureSource	Base class that can be used for any class that is capable of returning
QgsAbstractGeometrySimplifier	Abstract base class for simplify geometries using a specific algorithm
QgsAbstractPropertyCollection	Abstract base class for QgsPropertyCollection like objects.
QgsAggregateCalculator	Utility class for calculating aggregates for a field (or expression) over the features from a vector layer.
QgsAlignRasterData	The QgsAlignRasterData class provides data structures and enums for align raster tool.
QgsAnimatedIcon	Animated icon is keeping an animation running if there are listeners connected to frameChanged
QgsApplication	Extends QApplication to provide access to QGIS specific resources such as theme paths, database paths etc.
QgsArchive	Class allowing to manage the zip/unzip actions
QgsAttributeTableConfig	This is a container for configuration of the attribute table. The configuration is specific for one vector layer.
QgsAuxiliaryStorage	Class providing some utility methods to manage auxiliary storage.
QgsBearingUtils	Utilities for calculating bearings and directions.
QgsBlockingProcess	A thread safe class for performing blocking (sync) execution of external processes.
QgsBookmark	Represents a spatial bookmark, with a name, CRS and extent.
QgsBookmarkManager	Manages storage of a set of bookmarks.
QgsBookmarkManagerModel	Implements a model for the contents of QgsBookmarkManager objects.
QgsBookmarkManagerProxyModel	A QSortFilterProxyModel subclass for sorting the entries in a QgsBookmarkManagerModel.
QgsCacheIndexFeatureId
QgsCachedFeatureIterator	Delivers features from the cache
QgsCachedFeatureWriterIterator	Uses another iterator as backend and writes features to the cache
QgsCadUtils	The QgsCadUtils class provides routines for CAD editing.
QgsClipper	A class to trim lines and polygons to within a rectangular region.
QgsColorBrewerColorRamp	Color ramp utilising “Color Brewer” preset color schemes.
QgsColorRamp	Abstract base class for color ramps
QgsColorRampTransformer	QgsPropertyTransformer subclass for transforming a numeric value into a color from a color ramp.
QgsColorScheme	Abstract base class for color schemes
QgsColorSchemeRegistry	Registry of color schemes
QgsColorUtils	Contains utility functions for working with colors.
QgsCommandLineUtils	Utils class for QGIS command line tools.
QgsConditionalLayerStyles	The QgsConditionalLayerStyles class holds conditional style information for a layer. This includes field styles and full row styles.
QgsConditionalStyle	Conditional styling for a rule.
QgsConnectionRegistry	A registry for saved data provider connections, allowing retrieval of saved connections by name and provider type.
QgsCoordinateFormatter	Contains methods for converting coordinates for display in various formats.
QgsCopyFileTask	Task to copy a file on disk
QgsCptCityColorRamp	A color ramp from the CPT City collection.
QgsCredentials	Interface for requesting credentials in QGIS in GUI independent way.
QgsCredentialsConsole	Implementation of credentials interface for the console
QgsCredentialsNone	Default implementation of credentials interface
QgsCsException	Custom exception class for Coordinate Reference System related exceptions.
QgsCurveTransform	Handles scaling of input values to output values by using a curve created from smoothly joining a number of set control points.
QgsCustomColorScheme	A color scheme which contains custom colors set through QGIS app options dialog.
QgsDartMeasurement	Emits dart measurements for display in CDash reports.
QgsDataDefinedSizeLegend	Object that keeps configuration of appearance of marker symbol’s data-defined size in legend.
QgsDataProviderElevationProperties	Base class for handling elevation related properties for a data provider.
QgsDataProviderTemporalCapabilities	Base class for handling properties relating to a data provider’s temporal capabilities.
QgsDataSourceUri	Class for storing the component parts of a RDBMS data source URI (e.g. a Postgres data source).
QgsDatabaseFilterProxyModel	A class that implements a custom filter and can be used as a proxy for QgsDbTableModel
QgsDatabaseQueryLog	Handles logging of database queries.
QgsDatabaseQueryLogEntry	Encapsulates a logged database query.
QgsDatabaseSchemaModel	A model containing schemas from a database connection.
QgsDatabaseTableModel	A model containing tables from a database connection.
QgsDateRange	Constructor for QgsTemporalRange. The begin and end are specified, and optionally whether or not these bounds are included in the range.
QgsDateTimeRange	Constructor for QgsTemporalRange. The begin and end are specified, and optionally whether or not these bounds are included in the range.
QgsDateTimeStatisticalSummary	Calculator for summary statistics and aggregates for a list of datetimes.
QgsDefaultMeshLayerLegend	Default legend implementation for mesh layers
QgsDefaultPointCloudLayerLegend	Default legend implementation for point cloud layers
QgsDefaultRasterLayerLegend	Default legend implementation for raster layers
QgsDefaultValue	The QgsDefaultValue class provides a container for managing client side default values for fields.
QgsDefaultVectorLayerLegend	Default legend implementation for vector layers
QgsDiagramInterpolationSettings	Additional diagram settings for interpolated size rendering.
QgsDiagramLayerSettings	Stores the settings for rendering of all diagrams for a layer.
QgsDiagramRenderer	Evaluates and returns the diagram settings relating to a diagram for a specific feature.
QgsDiagramSettings	Stores the settings for rendering a single diagram.
QgsDistanceArea	A general purpose distance and area calculator, capable of performing ellipsoid based calculations.
QgsDoubleRange	QgsRange which stores a range of double values.
QgsEditError
QgsEditorWidgetSetup	Holder for the widget type and its configuration for a field.
QgsElevationMap	Stores digital elevation model in a raster image which may get updated as a part of map layer rendering process.
QgsElevationShadingRenderer	This class can render elevation shading on an image with different methods (eye dome lighting, hillshading, …).
QgsElevationUtils	Contains utility methods for working with elevation from layers and projects.
QgsError	A container for error messages.
QgsErrorMessage	QgsErrorMessage represents single error message.
QgsException	Defines a QGIS exception class.
QgsExpressionContext	Expression contexts are used to encapsulate the parameters around which a QgsExpression should be evaluated.
QgsExpressionContextGenerator	Abstract interface for generating an expression context.
QgsExpressionContextScope	Single scope for storing variables and functions for use within a QgsExpressionContext.
QgsExpressionContextScopeGenerator	Abstract interface for generating an expression context scope.
QgsExpressionFieldBuffer	Buffers information about expression fields for a vector layer.
QgsFeature	The feature class encapsulates a single feature including its unique ID, geometry and a list of field/values attributes.
QgsFeatureFilterModel	Provides a list of features based on filter conditions. Features are fetched asynchronously.
QgsFeatureFilterProvider	Abstract interface for use by classes that filter the features or attributes of a layer.
QgsFeatureIterator	Wrapper for iterator of features from vector data provider or vector
QgsFeaturePickerModel	Provides a list of features based on filter conditions. Features are fetched asynchronously.
QgsFeaturePickerModelBase	Provides a list of features based on filter conditions.
QgsFeatureRequest	This class wraps a request for features to a vector layer (or directly its vector data provider).
QgsFeatureSink	An interface for objects which accept features via addFeature(s) methods.
QgsFeatureSource	An interface for objects which provide features via a getFeatures method.
QgsFeatureStore	A container for features with the same fields and crs.
QgsFeedback	Base class for feedback objects to be used for cancellation of something running in a worker thread.
QgsField	Encapsulate a field in an attribute table or data source.
QgsFieldConstraints	Stores information about constraints which may be present on a field.
QgsFieldFormatter	A field formatter helps to handle and display values for a field.
QgsFieldFormatterContext	A context for field formatter containing information like the project
QgsFieldFormatterRegistry	The QgsFieldFormatterRegistry manages registered classes of QgsFieldFormatter.
QgsFieldModel	The QgsFieldModel class is a model to display the list of fields in widgets (optionally associated with a vector layer).
QgsFieldProxyModel	The QgsFieldProxyModel class provides an easy to use model to display the list of fields of a layer.
QgsFields	Container of fields for a vector layer.
QgsFileFilterGenerator	Abstract interface for classes which generate a file filter string.
QgsFileUtils	Class for file utilities.
QgsFontUtils	Contains utility functions for working with fonts.
QgsGenericNumericTransformer	QgsPropertyTransformer subclass for scaling an input numeric value into an output numeric value.
QgsGeometryOptions	The QgsGeometryOptions class contains options to automatically adjust geometries to constraints on a layer.
QgsGeometryValidator	Constructor for QgsGeometryValidator.
QgsGml	This class reads data from a WFS server or alternatively from a GML file.
QgsGmlFeatureClass	Description of feature class in GML
QgsGmlSchema
QgsGplColorScheme	A color scheme which stores its colors in a gpl palette file.
QgsGradientColorRamp	Gradient color ramp, which smoothly interpolates between two colors and also supports optional extra color stops.
QgsGradientStop	Represents a color stop within a QgsGradientColorRamp color ramp.
QgsGroupLayer	A map layer which consists of a set of child layers, where all component layers are rendered as a single flattened object during map renders.
QgsHistogram	Calculator for a numeric histogram from a list of values.
QgsHstoreUtils
QgsHtmlUtils	Class for HTML utilities.
QgsIconUtils	Contains utility functions for working with icons.
QgsIdentifyContext	Identify contexts are used to encapsulate the settings to be used to perform an identify action.
QgsImageCache	A cache for images derived from raster files.
QgsIntRange	QgsRange which stores a range of integer values.
QgsInterval	A representation of the interval between two datetime values.
QgsJsonExporter	Handles exporting QgsFeature features to GeoJSON features.
QgsJsonUtils	Helper utilities for working with JSON and GeoJSON conversions.
QgsLabelBlockingRegion	Label blocking region (in map coordinates and CRS).
QgsLayerDefinition	The QgsLayerDefinition class holds generic methods for loading/exporting QLR files.
QgsLayerNotesUtils	Contains utility functions for working with layer notes.
QgsLayoutChecker	Renders a layout to an image and compares with an expected output
QgsLegendRenderer	Handles automatic layout and rendering of legends.
QgsLegendSettings	The QgsLegendSettings class stores the appearance and layout settings for legend drawing with QgsLegendRenderer.
QgsLegendStyle	Contains detailed styling information relating to how a layout legend should be rendered.
QgsLimitedRandomColorRamp	Constrained random color ramp, which returns random colors based on preset parameters.
QgsLinearlyInterpolatedDiagramRenderer	Alters the size of rendered diagrams using a linear scaling.
QgsLocalDefaultSettings	Contains local default settings which should be respected when creating new objects such as QgsProjects.
QgsLocalizedDataPathRegistry	A registry class to hold localized data paths which can be used for basemaps, logos, etc.
QgsLogger	QgsLogger is a class to print debug/warning/error messages to the console.
QgsMapClippingRegion	A map clipping region (in map coordinates and CRS).
QgsMapClippingUtils	Utility functions for use when clipping map renders.
QgsMapDecoration	Interface for map decorations.
QgsMapHitTest	Class that runs a hit test with given map settings. Based on the hit test it returns which symbols will be visible on the map - this is useful for content based legend.
QgsMapHitTestTask	Executes a QgsMapHitTest in a background thread.
QgsMapLayer	Base class for all map layer types. This is the base class for all map layer types (vector, raster).
QgsMapLayerDependency	This class models dependencies with or between map layers.
QgsMapLayerElevationProperties	Base class for storage of map layer elevation properties.
QgsMapLayerFactory	Contains utility functions for creating map layers.
QgsMapLayerLegend	The QgsMapLayerLegend class is abstract interface for implementations of legends for one map layer.
QgsMapLayerLegendUtils	Miscellaneous utility functions for handling of map layer legend
QgsMapLayerModel	The QgsMapLayerModel class is a model to display layers in widgets.
QgsMapLayerProxyModel	The QgsMapLayerProxyModel class provides an easy to use model to display the list of layers in widgets.
QgsMapLayerRenderer	Base class for utility classes that encapsulate information necessary for rendering of map layers.
QgsMapLayerSelectionProperties	Base class for storage of map layer selection properties.
QgsMapLayerServerProperties	Manages QGIS Server properties for a map layer
QgsMapLayerStore	A storage object for map layers, in which the layers are owned by the store and have their lifetime bound to the store.
QgsMapLayerStyle	Stores style information (renderer, opacity, labeling, diagrams etc.) applicable to a map layer.
QgsMapLayerStyleManager	Management of styles for use with one map layer
QgsMapLayerStyleOverride	Restore overridden layer style on destruction.
QgsMapLayerTemporalProperties	Base class for storage of map layer temporal properties.
QgsMapLayerUtils	Contains utility functions for working with map layers.
QgsMapSettings	The QgsMapSettings class contains configuration for rendering of the map.
QgsMapSettingsUtils	Utilities for map settings.
QgsMapThemeCollection	Container class that allows storage of map themes consisting of visible map layers and layer styles.
QgsMapToPixel	Perform transforms between map coordinates and device coordinates.
QgsMapToPixelSimplifier	Implementation of GeometrySimplifier using the “MapToPixel” algorithm
QgsMapUnitScale	Struct for storing maximum and minimum scales for measurements in map
QgsMargins	Constructs a margins object with all margins set to 0.
QgsMaskIdProvider	This class allows the creation of mask ids based on the different label layers and to give a mask id from a label layer.
QgsMaskRenderSettings	Contains settings regarding how masks are calculated and handled during a map render.
QgsMatrix4x4	A simple 4x4 matrix implementation useful for transformation in 3D space.
QgsMeshUtils
QgsMessageLog	Interface for logging messages from QGIS in GUI independent way.
QgsMessageLogConsole	Default implementation of message logging interface
QgsMessageLogNotifyBlocker	Temporarily blocks the application QgsMessageLog (see QgsApplication.messageLog()) from emitting the messageReceived( bool ) signal for the lifetime of the object.
QgsMessageOutput	Interface for showing messages from QGIS in GUI independent way.
QgsMessageOutputConsole	Default implementation of message output interface
QgsMimeDataUtils	Contains utility functions for working with MIME data.
QgsMultiRenderChecker	This class allows checking rendered images against comparison images.
QgsNotSupportedException	Custom exception class which is raised when an operation is not supported.
QgsObjectCustomProperties	Simple key-value store (keys = strings, values = variants) that supports loading/saving to/from XML in verbatim <customproperties> endverbatim element.
QgsOfflineEditing	Handles logic relating to synchronizing online and offline copies of layer data.
QgsOgcUtils	The QgsOgcUtils class provides various utility functions for conversion between OGC (Open Geospatial Consortium) standards and QGIS internal representations.
QgsOptionalExpression	An expression with an additional enabled flag.
QgsOptionalQgsExpressionBase	QgsOptional is a container for other classes and adds an additional enabled/disabled flag.
QgsOwsConnection	Connections management
QgsPathResolver	Resolves relative paths into absolute paths and vice versa. Used for
QgsPluginLayer	Base class for plugin layers. These can be implemented by plugins and registered in QgsPluginLayerRegistry.
QgsPluginLayerRegistry	A registry of plugin layers types.
QgsPluginLayerType	Class for creating plugin specific layers
QgsPointLocator	The class defines interface for querying point location:
QgsPointXY	A class to represent a 2D point.
QgsPolymorphicRelation	A polymorphic relation consists of the same properties like a normal relation except for the referenced layer which is calculated based on one or several fields of the referencing layer.
QgsPostgresStringUtils	The QgsPostgresStringUtils provides functions to handle postgres array like formatted lists in strings.
QgsPresetSchemeColorRamp	A scheme based color ramp consisting of a list of predefined colors.
QgsProcessingException	Custom exception class for processing related exceptions.
QgsProjectArchive	Class allowing to manage the zip/unzip actions on project file
QgsProjectColorScheme	A color scheme which contains project specific colors set through project properties dialog.
QgsProperty	A store for object properties.
QgsPropertyCollection	A grouped map of multiple QgsProperty objects, each referenced by a integer key value.
QgsPropertyCollectionStack	An ordered stack of QgsPropertyCollection containers, where collections added later to the stack will take priority over earlier collections.
QgsPropertyDefinition	Definition for a property.
QgsPropertyTransformer	Abstract base class for objects which transform the calculated value of a property. Possible uses include transformers which map a value into a scaled size or color from a gradient.
QgsProviderConnectionException	Custom exception class for provider connection related exceptions.
QgsProviderConnectionModel	A model containing registered connection names for a specific data provider.
QgsProxyFeatureSink	A simple feature sink which proxies feature addition on to another feature sink.
QgsProxyProgressTask	A QgsTask shell which proxies progress reports.
QgsPythonRunner	Utility class for running Python commands from various parts of QGIS.
QgsQueryResultModel	The QgsQueryResultModel class is a model for QgsAbstractDatabaseProviderConnection.QueryResult
QgsRandomColorRamp	Totally random color ramp. Returns colors generated at random, but constrained to some hardcoded saturation and value ranges to prevent ugly color generation.
QgsRangedoubleBase	A template based class for storing ranges (lower to upper values).
QgsRangeintBase	A template based class for storing ranges (lower to upper values).
QgsReadWriteContext	The class is used as a container of context for various read/write operations on other objects.
QgsReadWriteContextCategoryPopper	Allows entering a context category and takes care of leaving this category on deletion of the class. This would happen when it gets out of scope.
QgsReadWriteLocker	The QgsReadWriteLocker class is a convenience class that simplifies locking and unlocking QReadWriteLocks.
QgsRecentColorScheme	A color scheme which contains the most recently used colors.
QgsRecentStyleHandler	Handles and tracks style items recently used in the QGIS GUI.
QgsRelation	Represents a relationship between two vector layers.
QgsRelationContext	Context for relations. Used to resolve layers from projects.
QgsRelationManager	This class manages a set of relations between layers.
QgsRemappingProxyFeatureSink	A QgsFeatureSink which proxies incoming features to a destination feature sink, after applying transformations and field value mappings.
QgsRemappingSinkDefinition	Defines the parameters used to remap features when creating a QgsRemappingProxyFeatureSink.
QgsRenderChecker	This is a helper class for unit tests that need to write an image and compare it to an expected result or render time.
QgsRenderContext	Contains information about the context of a rendering operation.
QgsRenderedFeatureHandlerInterface	An interface for classes which provider custom handlers for features rendered as part of a map render job.
QgsRenderedItemDetails	Base class for detailed information about a rendered item.
QgsRunProcess	A class that executes an external program/script.
QgsRuntimeProfiler	Provides a method of recording run time profiles of operations, allowing easy recording of their overall run time.
QgsSQLStatement	Class for parsing SQL statements.
QgsSQLStatementFragment	Class for parsing fragments of SQL statements, such as an expression or where clause.
QgsScaleCalculator	Calculates scale for a given combination of canvas size, map extent, and monitor dpi.
QgsScaleUtils	Contains utility functions for working with map scales.
QgsScopeLogger
QgsScopedProxyProgressTask	Scoped QgsScopedProxyProgressTask, which automatically adds the proxy task to the application task manager on construction and finalizes the task when it goes out of scope.
QgsScopedRuntimeProfile	Scoped object for logging of the runtime for a single operation or group of operations.
QgsScreenProperties	Stores properties relating to a screen.
QgsSelectionContext	Encapsulates the context of a layer selection operation.
QgsServerMetadataUrlProperties	Manages QGIS Server properties for a map layer
QgsServerWmsDimensionProperties	Manages QGIS Server properties for Wms dimensions
QgsSettingsException	Custom exception class for settings related exceptions.
QgsSimplifyMethod	This class contains information about how to simplify geometries fetched from a QgsFeatureIterator
QgsSingleCategoryDiagramRenderer	Renders the diagrams for all features with the same settings
QgsSingleItemModel	A QgsSingleItemModel subclass which contains a single read-only item.
QgsSizeScaleTransformer	QgsPropertyTransformer subclass for scaling a value into a size according to various scaling methods.
QgsSldExportContext	The QgsSldExportContext class holds SLD export options and other information related to SLD export of a QGIS layer style.
QgsSnappingConfig	This is a container for configuration of the snapping of the project
QgsSnappingUtils	This class has all the configuration of snapping and can return answers to snapping queries.
QgsSourceCache	A cache for source strings that returns a local file path containing the source content.
QgsSpatialIndex	A spatial index for QgsFeature objects.
QgsSpatialIndexKDBush	A very fast static spatial index for 2D points based on a flat KD-tree.
QgsSpatialIndexKDBushData	A container for data stored inside a QgsSpatialIndexKDBush index.
QgsSqliteUtils	Contains utilities for working with Sqlite data sources.
QgsStackedDiagramRenderer	Renders diagrams using mixed diagram render types. The size of the rendered diagram is given by a combination of subrenderers.
QgsStatisticalSummary	Calculator for summary statistics for a list of doubles.
QgsStoredExpression	Stored expression containing name, content (expression text) and a category tag.
QgsStoredExpressionManager	Manages stored expressions regarding creation, modification and storing in the project
QgsStringReplacement	A representation of a single string replacement.
QgsStringReplacementCollection	A collection of string replacements (specified using QgsStringReplacement objects).
QgsStringStatisticalSummary	Calculator for summary statistics and aggregates for a list of strings.
QgsStringUtils	Utility functions for working with strings.
QgsTableCell	Encapsulates the contents and formatting of a single table cell.
QgsTask	Abstract base class for long running background tasks.
QgsTaskManager	Task manager for managing a set of long-running QgsTask tasks.
QgsTaskWithSerialSubTasks	Task that is composed of sub-tasks to be executed in a serial way, which may be useful for example to add several layers in a single target dataset which does not support concurrent updates.
QgsTaskWrapper
QgsTemporalController	A controller base class for temporal objects, contains a signal for notifying updates of the objects temporal range.
QgsTemporalNavigationObject	Implements a temporal controller based on a frame by frame navigation and animation.
QgsTemporalProperty	Base class for temporal property.
QgsTemporalRangeObject	Base class for objects with an associated (optional) temporal range.
QgsTemporalUtils	Contains utility methods for working with temporal layers and projects.
QgsTessellator	Class that takes care of tessellation of polygons into triangles.
QgsTestUtils
QgsTileMatrix	Defines a matrix of tiles for a single zoom level: it is defined by its size (width * height) and map extent that it covers.
QgsTileMatrixSet	Defines a set of tile matrices for multiple zoom levels.
QgsTileRange	Range of tiles in a tile matrix to be rendered. The selection is rectangular, given by start/end row and column numbers.
QgsTileXYZ	Stores coordinates of a tile in a tile matrix set.
QgsTolerance	This is the class is providing tolerance value in map unit values.
QgsTopologyPreservingSimplifier	Implementation of GeometrySimplifier using the Douglas-Peucker algorithm
QgsTracer	Utility class that construct a planar graph from the input vector layers and provides shortest path search for tracing of existing features.
QgsTransaction	This class allows including a set of layers in a database-side transaction, provided the layer data providers support transactions and are compatible with each other.
QgsTransactionGroup	Constructor for QgsTransactionGroup
QgsTranslationContext	Used for the collecting of strings from projects for translation and creation of ts files.
QgsUnitTypes	Helper functions for various unit types.
QgsUnsetAttributeValue	Represents a default, “not-specified” value for a feature attribute.
QgsUserColorScheme	A color scheme which stores its colors in a gpl palette file within the “palettes” subfolder off the user’s QGIS settings folder.
QgsUserProfile	User profile contains information about the user profile folders on the machine.
QgsUserProfileManager	User profile manager is used to manager list, and manage user profiles on the users machine.
QgsVariantUtils	Contains utility functions for working with QVariants and QVariant types.
QgsVector	A class to represent a vector. Currently no Z axis / 2.5D support is implemented.
QgsVector3D	Class for storage of 3D vectors similar to QVector3D, with the difference that it uses double precision instead of single precision floating point numbers.
QgsVectorFileWriter	A convenience class for writing vector layers to disk based formats (e.g. Shapefiles, GeoPackage).
QgsVectorFileWriterTask	QgsTask task which performs a QgsVectorFileWriter layer saving operation as a background task. This can be used to save a vector layer out to a file without blocking the QGIS interface.
QgsVectorLayerServerProperties
QgsVectorSimplifyMethod	This class contains information how to simplify geometries fetched from a vector layer
QgsVirtualLayerDefinition	Class to manipulate the definition of a virtual layer
QgsVirtualLayerDefinitionUtils	Utils class for QgsVirtualLayerDefinition
QgsVirtualLayerTask	Initializes a virtual layer with postpone mode activated and reloads the data in a separated thread.
QgsWeakRelation	The QgsWeakRelation class represent a QgsRelation with possibly unresolved layers or unmatched fields.
QgsXmlUtils	Assorted helper methods for reading and writing chunks of XML
QgsZipUtils
ReadWriteContextEnterCategory	Push a category to the stack
ScopedRuntimeProfileContextManager	Context manager used to profile blocks of code in the QgsApplication.profiler() registry.
USER_CRS_START_ID	Convert a number or string to an integer, or return 0 if no arguments are given. If x is a number, return x.__int__(). For floating point numbers, this truncates towards zero.
check	Constructs QgsAbstractValidityChecks using a decorator.
compareWkt	Compare two WKT strings with some tolerance
edit
geoEpsgCrsAuthId
metaEnumFromType	Returns the QMetaEnum for an enum type. The enum must have declared using the Q_ENUM macro
metaEnumFromValue	Returns the QMetaEnum for an enum value. The enum must have declared using the Q_ENUM macro
qHash	Hash for QVariant
qgsDoubleNear	Compare two doubles (but allow some difference)
qgsDoubleNearSig	Compare two doubles using specified number of significant digits
qgsDoubleToString	Returns a string representation of a double
qgsFloatNear	Compare two floats (but allow some difference)
qgsNanCompatibleEquals	Compare two doubles, treating nan values as equal
qgsPermissiveToDouble	Converts a string to a double in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators
qgsPermissiveToInt	Converts a string to an integer in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators
qgsPermissiveToLongLong	Converts a string to an qlonglong in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators
qgsRound	Returns a double number, rounded (as close as possible) to the specified number of places.
qgsVariantCompare	Compares two QVariant values.
qgsVariantEqual	Compares two QVariant values and returns whether they are equal, two NULL values are always treated as equal and 0 is not treated as equal with NULL
qgsVariantGreaterThan	Compares two QVariant values and returns whether the first is greater than the second. Useful for sorting lists of variants, correctly handling sorting of the various QVariant data types (such as strings, numeric values, dates and times)
qgsVariantLessThan	Compares two QVariant values and returns whether the first is less than the second. Useful for sorting lists of variants, correctly handling sorting of the various QVariant data types (such as strings, numeric values, dates and times)
qgsVsiPrefix
qgsfunction	Decorator function used to define a user expression function.
register_function	Register a Python function to be used as a expression function.
stringToSymbolLayerReferenceList	Utilitary function to parse a string originated from symbolLayerReferenceListToString into a QgsSymbolLayerReferenceList
symbolLayerReferenceListToString	Utilitary function to turn a QgsSymbolLayerReferenceList into a string

3D

Qgs3DRendererAbstractMetadata	Base metadata class for 3D renderers. Instances of derived classes may be registered in Qgs3DRendererRegistry.
Qgs3DRendererRegistry	Keeps track of available 3D renderers. Should be accessed through QgsApplication.renderer3DRegistry() singleton.
Qgs3DSymbolAbstractMetadata	Stores metadata about one 3D symbol class.
Qgs3DSymbolRegistry	Registry of available 3D symbol classes.
QgsAbstract3DRenderer	Base class for all renderers that may to participate in 3D view.
QgsAbstract3DSymbol	Abstract base class for 3D symbols that are used by VectorLayer3DRenderer objects.
QgsAbstractPointCloud3DRenderer	Base class for point cloud 3D renderers.

Annotations and Annotation Layers

QgsAbstractAnnotationItemEditOperation	Abstract base class for annotation item edit operations
QgsAnnotation	Abstract base class for annotation items which are drawn over a map.
QgsAnnotationItem	Abstract base class for annotation items which are drawn with QgsAnnotationLayers.
QgsAnnotationItemAbstractMetadata	Stores metadata about one annotation item class.
QgsAnnotationItemEditContext	Encapsulates the context for an annotation item edit operation.
QgsAnnotationItemEditOperationAddNode	Annotation item edit operation consisting of adding a node
QgsAnnotationItemEditOperationDeleteNode	Annotation item edit operation consisting of deleting a node
QgsAnnotationItemEditOperationMoveNode	Annotation item edit operation consisting of moving a node
QgsAnnotationItemEditOperationTransientResults	Encapsulates the transient results of an in-progress annotation edit operation.
QgsAnnotationItemEditOperationTranslateItem	Annotation item edit operation consisting of translating (moving) an
QgsAnnotationItemNode	Contains information about a node used for editing an annotation item.
QgsAnnotationItemRegistry	Registry of available annotation item types.
QgsAnnotationLayer	Represents a map layer containing a set of georeferenced annotations, e.g. markers, lines, polygons or text items.
QgsAnnotationLineItem	An annotation item which renders a line symbol along a line geometry.
QgsAnnotationLineTextItem	An annotation item which renders text along a line geometry.
QgsAnnotationManager	Manages storage of a set of QgsAnnotation annotation objects.
QgsAnnotationMarkerItem	An annotation item which renders a marker symbol at a point location.
QgsAnnotationPictureItem	An annotation item which renders a picture.
QgsAnnotationPointTextItem	An annotation item which renders a text string at a point location.
QgsAnnotationPolygonItem	An annotation item which renders a fill symbol for a polygon geometry.
QgsAnnotationRectItem	Abstract base class for annotation items which render annotations in a rectangular shape.
QgsAnnotationRectangleTextItem	An annotation item which renders paragraphs of text within a rectangle.
QgsHtmlAnnotation	An annotation item that embeds HTML content.
QgsRenderedAnnotationItemDetails	Contains information about a rendered annotation item.
QgsSvgAnnotation	An annotation which renders the contents of an SVG file.
QgsTextAnnotation	An annotation item that displays formatted text from a QTextDocument document.

Attribute Form Configuration

QgsAttributeEditorAction	This element will load a layer action onto the form.
QgsAttributeEditorContainer	This is a container for attribute editors, used to group them visually in the attribute form if it is set to the drag and drop designer.
QgsAttributeEditorElement	This is an abstract base class for any elements of a drag and drop form.
QgsAttributeEditorField	This element will load a field’s widget onto the form.
QgsAttributeEditorHtmlElement	An attribute editor widget that will represent arbitrary HTML code.
QgsAttributeEditorQmlElement	An attribute editor widget that will represent arbitrary QML code.
QgsAttributeEditorRelation	This element will load a relation editor onto the form.
QgsAttributeEditorSpacerElement	An attribute editor widget that will represent a spacer.
QgsAttributeEditorTextElement	An attribute editor widget that will represent arbitrary text code.
QgsEditFormConfig	Contains configuration settings for an editor form.

Authentication Framework

QgsAuthCertUtils	Utilities for working with certificates and keys
QgsAuthConfigSslServer	Configuration container for SSL server connection exceptions or
QgsAuthConfigurationStorage	Abstract class that defines the interface for all authentication configuration storage implementations.
QgsAuthConfigurationStorageDb	QSqlDatabase based implementation of QgsAuthConfigurationStorage.
QgsAuthConfigurationStorageRegistry	Registry for authentication configuration storages.
QgsAuthManager	Singleton offering an interface to manage the authentication configuration database and to utilize configurations through various authentication method plugins
QgsAuthMethod	Abstract base class for authentication method plugins
QgsAuthMethodConfig	Configuration storage class for authentication method configurations
QgsPkiBundle	Storage set for PKI bundle: SSL certificate, key, optional CA cert chain
QgsPkiConfigBundle	Storage set for constructed SSL certificate, key, associated with an authentication config

Browser

QgsBrowserModel	A model for showing available data sources and other items in a structured tree.
QgsBrowserProxyModel	A QSortFilterProxyModel subclass for filtering and sorting browser model items.
QgsConnectionsRootItem	A Collection that represents a root group of connections from a single data provider
QgsDataCollectionItem	A Collection: logical collection of layers or subcollections, e.g. GRASS location/mapset, database? wms source?
QgsDataItem	Base class for all items in the model.
QgsDataItemProvider	This is the interface for those who want to add custom data items to the browser tree.
QgsDataItemProviderRegistry	This class keeps a list of data item providers that may add items to the browser tree.
QgsDatabaseSchemaItem	A Collection that represents a database schema item
QgsDirectoryItem	A directory: contains subdirectories and layers
QgsDirectoryParamWidget	Browser parameter widget implementation for directory items.
QgsErrorItem	Data item that can be used to report problems (e.g. network error)
QgsFavoritesItem	Contains various Favorites directories
QgsFieldDomainItem	A browser item representing a field domain.
QgsFieldDomainsItem	Contains a collection of field domain items.
QgsFieldItem	A data item representing a single field from a layer.
QgsFieldsItem	A collection of field items with some internal logic to retrieve the fields and a the vector layer instance from a connection URI, the schema and the table name.
QgsLayerItem	Item that represents a layer that can be opened with one of the
QgsProjectItem	Data item that can be used to represent QGIS projects.
QgsRelationshipItem	A browser item representing a relationship.
QgsRelationshipsItem	Contains a collection of relationship items.
QgsZipItem	A zip file: contains layers, using GDAL/OGR VSIFILE mechanism

Classification Methods

QgsClassificationCustom	QgsClassificationCustom is a dummy implementation of QgsClassification which does not compute any break.
QgsClassificationEqualInterval	QgsClassificationEqualInterval is an implementation of QgsClassificationMethod for equal intervals
QgsClassificationFixedInterval	Implementation of a fixed interval classification.
QgsClassificationJenks	QgsClassificationJenks is an implementation of QgsClassificationMethod for natural breaks based on Jenks
QgsClassificationLogarithmic	Implementation of a logarithmic scale method
QgsClassificationMethod	QgsClassificationMethod is an abstract class for implementations of classification methods
QgsClassificationMethodRegistry	This class manages all known classification methods
QgsClassificationPrettyBreaks	QgsClassificationPrettyBreaks is an implementation of QgsClassificationMethod for pretty breaks
QgsClassificationQuantile	QgsClassificationQuantile is an implementation of QgsClassificationMethod based on quantiles
QgsClassificationRange	QgsClassificationRange contains the information about a classification range
QgsClassificationStandardDeviation	QgsClassificationCustom is an implementation of QgsClassificationMethod based on standard deviation

Coordinate Systems and Transformations

QgsCelestialBody	Contains information about a celestial body.
QgsCoordinateReferenceSystem	This class represents a coordinate reference system (CRS).
QgsCoordinateReferenceSystemRegistry	A registry for known coordinate reference system (CRS) definitions, including any user-defined CRSes.
QgsCoordinateReferenceSystemUtils	Utility functions for working with QgsCoordinateReferenceSystem objects.
QgsCoordinateTransform	Class for doing transforms between two map coordinate systems.
QgsCoordinateTransformContext	Contains information about the context in which a coordinate transform is executed.
QgsDatumEnsemble	Contains information about a datum ensemble.
QgsDatumEnsembleMember	Contains information about a member of a datum ensemble.
QgsDatumTransform	Contains methods and classes relating the datum transformations.
QgsEllipsoidUtils	Contains utility functions for working with ellipsoids and querying the ellipsoid database.
QgsProjOperation	Contains information about a PROJ operation.
QgsProjUtils	Utility functions for working with the proj library.
QgsProjectionFactors	contains various cartographic properties, such as scale factors, angular distortion and meridian convergence.

DXF Exports

QgsDxfExport

Exports QGIS layers to the DXF format.

Data Providers

QgsAbstractDatabaseProviderConnection	The QgsAbstractDatabaseProviderConnection class provides common functionality for DB based connections.
QgsAbstractDbTableModel	The QgsAbstractDbTableModel class is a pure virtual model class for results in a database source widget selector
QgsAbstractProviderConnection	The QgsAbstractProviderConnection provides an interface for data provider connections.
QgsDataProvider	Abstract base class for spatial data provider implementations.
QgsMeshDriverMetadata	Holds metadata about mesh driver
QgsProviderRegistry	A registry / canonical manager of data providers.
QgsProviderSqlQueryBuilder	Provides an interface for provider-specific creation of SQL queries.
QgsProviderSublayerDetails	Contains details about a sub layer available from a dataset.
QgsProviderSublayerModel	A model for representing the sublayers present in a URI.
QgsProviderSublayerProxyModel	A QSortFilterProxyModel for filtering and sorting a QgsProviderSublayerModel.
QgsProviderSublayerTask	A QgsTask which retrieves sublayer details for a URI.
QgsProviderUtils	Contains utility functions for working with data providers.

Data Providers - ArcGIS

QgsArcGisPortalUtils	Utility functions for working with ArcGIS REST services.
QgsArcGisRestContext	Contains the context of a ArcGIS REST service operation.
QgsArcGisRestUtils	Utility functions for working with ArcGIS REST services.

Data Providers - Memory

QgsMemoryProviderUtils

Utility functions for use with the memory vector data provider.

Data Providers - OGC Sensorthings

QgsSensorThingsExpansionDefinition	Encapsulates information about how relationships in a SensorThings API service should be expanded.
QgsSensorThingsUtils	Utility functions for working with OGC SensorThings API services.

Diagrams and Charts

QgsDiagram	Base class for all diagram types.
QgsHistogramDiagram	A histogram style diagram.
QgsPieDiagram	A pie chart diagram.
QgsStackedBarDiagram	A stacked bar chart diagram.
QgsStackedDiagram	A diagram composed of several subdiagrams, located side by side.
QgsTextDiagram	A text based diagram.

Elevation Handling

QgsAbstractProfileGenerator	Abstract base class for objects which generate elevation profiles.
QgsAbstractProfileResults	Abstract base class for storage of elevation profiles.
QgsAbstractProfileSource	Interface for classes which can generate elevation profiles.
QgsAbstractTerrainProvider	Abstract base class for terrain providers
QgsFlatTerrainProvider	A terrain provider where the terrain is a simple flat surface.
QgsMeshTerrainProvider	A terrain provider that uses the Z values of a mesh layer to build a terrain surface.
QgsProfileExporter	Handles exports of elevation profiles in various formats.
QgsProfileExporterTask	Handles exports of elevation profiles in various formats in a background task.
QgsProfileGenerationContext	Encapsulates the context in which an elevation profile is to be generated.
QgsProfileIdentifyContext	Encapsulates the context of identifying profile results.
QgsProfileIdentifyResults	Stores identify results generated by a QgsAbstractProfileResults object.
QgsProfilePlotRenderer	Generates and renders elevation profile plots.
QgsProfilePoint	Encapsulates a point on a distance-elevation profile.
QgsProfileRenderContext	Abstract base class for storage of elevation profiles.
QgsProfileRequest	Encapsulates properties and constraints relating to fetching elevation profiles from different sources.
QgsProfileSnapContext	Encapsulates the context of snapping a profile point.
QgsProfileSnapResult	Encapsulates results of snapping a profile point.
QgsProfileSourceRegistry	Registry of profile sources used by QgsProfilePlotRenderer
QgsRasterDemTerrainProvider	A terrain provider where the terrain source is a raster DEM layer.

Expression Engine

QgsExpression	Class for parsing and evaluation of expressions (formerly called “search strings”). The expressions try to follow both syntax and semantics of SQL expressions.
QgsExpressionContextUtils	Contains utilities for working with QgsExpressionContext objects, including methods for creating scopes for specific uses (e.g., project scopes, layer scopes).
QgsExpressionFunction	A abstract base class for defining QgsExpression functions.
QgsExpressionNode	Abstract base class for all nodes that can appear in an expression.
QgsExpressionNodeBetweenOperator	SQL-like BETWEEN and NOT BETWEEN predicates.
QgsExpressionNodeBinaryOperator	A binary expression operator, which operates on two values.
QgsExpressionNodeColumnRef	An expression node which takes it value from a feature’s field.
QgsExpressionNodeCondition	An expression node for CASE WHEN clauses.
QgsExpressionNodeFunction	An expression node for expression functions.
QgsExpressionNodeInOperator	An expression node for value IN or NOT IN clauses.
QgsExpressionNodeIndexOperator	A indexing expression operator, which allows use of square brackets [] to reference map and array items.
QgsExpressionNodeLiteral	An expression node for literal values.
QgsExpressionNodeUnaryOperator	A unary node is either negative as in boolean (not) or as in numbers (minus).
QgsScopedExpressionFunction	Expression function for use within a QgsExpressionContextScope. This differs from a standard QgsExpression.Function in that it requires an implemented clone() method.

External Storage

QgsExternalStorage	Abstract interface for external storage - to be implemented by various backends and registered in QgsExternalStorageRegistry.
QgsExternalStorageContent	Base class for QgsExternalStorage stored and fetched content
QgsExternalStorageFetchedContent	Class for QgsExternalStorage fetched content
QgsExternalStorageRegistry	Registry of external storage backends used by QgsExternalResourceWidget
QgsExternalStorageStoredContent	Class for QgsExternalStorage stored content

Field Value Formating

QgsCheckBoxFieldFormatter	Field formatter for a checkbox field.
QgsDateTimeFieldFormatter	Field formatter for a date time field.
QgsFallbackFieldFormatter	A default fallback field formatter in case no specialized field formatter is defined.
QgsKeyValueFieldFormatter	Field formatter for a key value field.
QgsListFieldFormatter	Field formatter for a list field.
QgsRangeFieldFormatter	Field formatter for a range (double) field with precision and locale.
QgsRelationReferenceFieldFormatter	Field formatter for a relation reference field.
QgsValueMapFieldFormatter	Field formatter for a ValueMap field.
QgsValueRelationFieldFormatter	Field formatter for a value relation field.

GPS and GNSS

QgsAbstractBabelFormat	Abstract base class for babel GPS formats.
QgsBabelFormatRegistry	A registry for QgsAbstractBabelFormat GPSBabel formats.
QgsBabelGpsDeviceFormat	A babel format capable of interacting directly with a GPS device.
QgsBabelSimpleImportFormat	A babel format capable of converting input files to GPX files.
QgsGpsConnection	Abstract base class for connection to a GPS device
QgsGpsConnectionRegistry	A class to register / unregister existing GPS connections such that the information is available to all classes and plugins.
QgsGpsDetector	Class to detect the GPS port
QgsGpsInformation	Encapsulates information relating to a GPS position fix.
QgsGpsLogger	Base class for objects which log incoming GPS data.
QgsGpsdConnection	Evaluates NMEA sentences coming from gpsd
QgsNmeaConnection	Evaluates NMEA sentences coming from a GPS device
QgsQtLocationConnection	A GPS connection subclass based on the Qt Location libraries.
QgsSatelliteInfo	Encapsulates information relating to a GPS satellite.
QgsVectorLayerGpsLogger	Handles logging of incoming GPS data to a vector layer.

Geocoding

QgsAbstractGeocoderLocatorFilter	An abstract base class which implements a locator filter populated from a QgsGeocoderInterface.
QgsGeocoderContext	Encapsulates the context of a geocoding operation.
QgsGeocoderInterface	Interface for geocoders.
QgsGeocoderResult	Represents a matching result from a geocoder search.
QgsGoogleMapsGeocoder	A geocoder which uses the Google Map geocoding API to retrieve results.
QgsNominatimGeocoder	A geocoder which uses the Nominatim geocoding API to retrieve results.

Geometry

QgsAbstractGeometry	Abstract base class for all geometries
QgsAbstractGeometryTransformer	An abstract base class for classes which transform geometries by transforming input points to output points.
QgsBox3D	A 3-dimensional box composed of x, y, z coordinates.
QgsCircle	Circle geometry type.
QgsCircularString	Circular string geometry type
QgsCompoundCurve	Compound curve geometry type
QgsConstWkbPtr	A const WKB pointer.
QgsCurve	Abstract base class for curved geometry type
QgsCurvePolygon	Curve polygon geometry type
QgsEllipse	Ellipse geometry type.
QgsGeometry	A geometry is the spatial representation of a feature.
QgsGeometryCollection	Geometry collection
QgsGeometryConstPartIterator	Java-style iterator for const traversal of parts of a geometry
QgsGeometryEngine	A geometry engine is a low-level representation of a QgsAbstractGeometry object, optimised for use with external geometry libraries such as GEOS.
QgsGeometryParameters	Encapsulates parameters under which a geometry operation is performed.
QgsGeometryPartIterator	Java-style iterator for traversal of parts of a geometry
QgsGeometryUtils	Contains various geometry utility functions.
QgsGeometryUtilsBase	Convenience functions for geometry utils.
QgsLineSegment2D	Represents a single 2D line segment, consisting of a 2D start and end vertex only.
QgsLineString	Line string geometry type, with support for z-dimension and m-values.
QgsMultiCurve	Multi curve geometry collection.
QgsMultiLineString	Multi line string geometry collection.
QgsMultiPoint	Multi point geometry collection.
QgsMultiPolygon	Multi polygon geometry collection.
QgsMultiSurface	Multi surface geometry collection.
QgsOrientedBox3D	Represents a oriented (rotated) box in 3 dimensions.
QgsPoint	Point geometry type, with support for z-dimension and m-values.
QgsPolygon	Polygon geometry type.
QgsPolyhedralSurface	Polyhedral surface geometry type.
QgsQuadrilateral	Quadrilateral geometry type.
QgsRay3D	A representation of a ray in 3D.
QgsRectangle	A rectangle specified with double values.
QgsReferencedGeometry	A QgsGeometry with associated coordinate reference system.
QgsReferencedGeometryBase	A base class for geometry primitives which are stored with an associated reference system.
QgsReferencedPointXY	A QgsPointXY with associated coordinate reference system.
QgsReferencedRectangle	A QgsRectangle with associated coordinate reference system.
QgsRegularPolygon	Regular Polygon geometry type.
QgsSphere	A spherical geometry object.
QgsSurface	Surface geometry type.
QgsTriangle	Triangle geometry type.
QgsTriangulatedSurface	Triangulated surface geometry type.
QgsVertexId	Utility class for identifying a unique vertex within a geometry.
QgsVertexIterator	Java-style iterator for traversal of vertices of a geometry
QgsWkbPtr	WKB pointer handler.
QgsWkbTypes	Handles storage of information regarding WKB types and their properties.

Label Callouts

QgsBalloonCallout	A cartoon talking bubble callout style.
QgsCallout	Abstract base class for callout renderers.
QgsCalloutAbstractMetadata	Stores metadata about one callout renderer class.
QgsCalloutMetadata	Convenience metadata class that uses static functions to create callouts and their widgets.
QgsCalloutRegistry	Registry of available callout classes.
QgsCurvedLineCallout	Draws curved lines as callouts.
QgsManhattanLineCallout	Draws straight (right angled) lines as callouts.
QgsSimpleLineCallout	A simple direct line callout style.

Labeling

QgsAbstractVectorLayerLabeling	Abstract base class - its implementations define different approaches to the labeling of a vector layer.
QgsCalloutPosition	Represents the calculated placement of a map label callout line.
QgsLabelCandidate	Represents a label candidate.
QgsLabelLineSettings	Contains settings related to how the label engine places and formats labels for line features (or polygon features which are labeled in a “perimeter” style mode).
QgsLabelObstacleSettings	Contains settings related to how the label engine treats features as
QgsLabelPlacementSettings	Contains general settings related to how labels are placed.
QgsLabelPointSettings	Contains settings related to how the label engine places and formats labels for point features, or polygon features which are labeled in the “around” or “over” centroid placement modes.
QgsLabelPosition	Represents the calculated placement of a map label.
QgsLabelSearchTree	A class to query the labeling structure at a given point (small wrapper around pal RTree class)
QgsLabelThinningSettings	Contains settings related to how the label engine removes candidate label positions and reduces the number of displayed labels.
QgsLabeling	Contains constants and enums relating to labeling.
QgsLabelingEngineSettings	Stores global configuration for labeling engine
QgsLabelingResults	Class that stores computed placement from labeling engine.
QgsPalLabeling	PAL labeling utilities.
QgsPalLayerSettings	Contains settings for how a map layer will be labeled.
QgsRuleBasedLabeling	Rule based labeling for a vector layer.
QgsVectorLayerSimpleLabeling	Basic implementation of the labeling interface.

Labeling - Advanced Rules

QgsAbstractLabelingEngineRule	Abstract base class for labeling engine rules.
QgsAbstractLabelingEngineRuleDistanceFromFeature	Base class for labeling engine rules which prevents labels being placed too close or to far from features from a different layer.
QgsLabelingEngineContext	Encapsulates the context for a labeling engine run.
QgsLabelingEngineRuleAvoidLabelOverlapWithFeature	A labeling engine rule which prevents labels being placed overlapping features from a different layer.
QgsLabelingEngineRuleMaximumDistanceLabelToFeature	A labeling engine rule which prevents labels being placed too far from features from a different layer.
QgsLabelingEngineRuleMinimumDistanceLabelToFeature	A labeling engine rule which prevents labels being placed too close to features from a different layer.
QgsLabelingEngineRuleMinimumDistanceLabelToLabel	A labeling engine rule which prevents labels being placed too close to labels from a different layer.
QgsLabelingEngineRuleRegistry	A registry for labeling engine rules.

Layer Tree and Legends

QgsColorRampLegendNode	A legend node which renders a color ramp.
QgsColorRampLegendNodeSettings	Settings for a color ramp legend node.
QgsDataDefinedSizeLegendNode	Produces legend node with a marker symbol
QgsImageLegendNode	Implementation of legend node interface for displaying arbitrary raster
QgsLayerTree	Namespace with helper functions for layer tree operations.
QgsLayerTreeFilterProxyModel	QgsLayerTreeFilterProxyModel is a sort filter proxy model to easily reproduce the legend/layer tree in a tree view.
QgsLayerTreeFilterSettings	Contains settings relating to filtering the contents of QgsLayerTreeModel and views.
QgsLayerTreeGroup	Layer tree group node serves as a container for layers and further groups.
QgsLayerTreeLayer	Layer tree node points to a map layer.
QgsLayerTreeModel	The QgsLayerTreeModel class is model implementation for Qt item views framework.
QgsLayerTreeModelLegendNode	The QgsLegendRendererItem class is abstract interface for legend items returned from QgsMapLayerLegend implementation.
QgsLayerTreeNode	This class is a base class for nodes in a layer tree.
QgsLayerTreeRegistryBridge	Listens to the updates in map layer registry and does changes in layer tree.
QgsLayerTreeUtils	Assorted functions for dealing with layer trees.
QgsLegendPatchShape	Represents a patch shape for use in map legends.
QgsRasterSymbolLegendNode	Implementation of legend node interface for displaying raster legend
QgsSimpleLegendNode	Implementation of legend node interface for displaying arbitrary label with icon.
QgsSymbolLegendNode	Implementation of legend node interface for displaying preview of vector symbols and their labels and allowing interaction with the symbol / renderer.
QgsVectorLabelLegendNode	Produces legend node for a labeling text symbol
QgsWmsLegendNode	Implementation of legend node interface for displaying WMS legend

Locator Bar

QgsLocator	Handles the management of QgsLocatorFilter objects and async collection of search results from them.
QgsLocatorAutomaticModel	A QgsLocatorModel which has is associated directly with a QgsLocator, and is automatically populated with results from locator searches.
QgsLocatorContext	Encapsulates the properties relating to the context of a locator search.
QgsLocatorFilter	Abstract base class for filters which collect locator results.
QgsLocatorModel	An abstract list model for displaying the results of locator searches.
QgsLocatorModelBridge	The QgsLocatorModelBridge class provides the core functionality to be used in a locator widget.
QgsLocatorProxyModel	A sort proxy model for QgsLocatorModel, which automatically sorts results by precedence.
QgsLocatorResult	Encapsulates properties of an individual matching result found by a QgsLocatorFilter.

Map Actions

QgsAction	Utility class that encapsulates an action based on vector attributes.
QgsActionManager	Storage and management of actions associated with a layer.
QgsActionScope	An action scope defines a “place” for an action to be shown and may add additional expression variables.
QgsActionScopeRegistry	The action scope registry is an application wide registry that contains a list of available action scopes.

Map Rendering

QgsMapRendererAbstractCustomPainterJob	Abstract base class for map renderer jobs which use custom painters.
QgsMapRendererCache	This class is responsible for keeping cache of rendered images resulting from a map rendering job.
QgsMapRendererCustomPainterJob	Job implementation that renders everything sequentially using a custom painter.
QgsMapRendererJob	Abstract base class for map rendering implementations.
QgsMapRendererParallelJob	Job implementation that renders all layers in parallel.
QgsMapRendererQImageJob	Intermediate base class adding functionality that allows client to query the rendered image.
QgsMapRendererSequentialJob	Job implementation that renders everything sequentially in one thread.
QgsMapRendererTask	QgsTask task which draws a map to an image file or a painter as a background task. This can be used to draw maps without blocking the QGIS interface.
QgsRenderedItemResults	Stores collated details of rendered items during a map rendering operation.

Mesh Layers

QgsAbstractMeshLayerLabeling	Abstract base class - its implementations define different approaches to the labeling of a mesh layer.
QgsMesh	Mesh - vertices, edges and faces
QgsMesh3DAveragingMethod	Abstract class to interpolate 3d stacked mesh data to 2d data
QgsMesh3DDataBlock	QgsMesh3DDataBlock is a block of 3d stacked mesh data related N faces defined on base mesh frame.
QgsMeshAdvancedEditing	Abstract class that can be derived to implement advanced editing on mesh
QgsMeshCalculator	Performs mesh layer calculations.
QgsMeshDataBlock	QgsMeshDataBlock is a block of integers/doubles that can be used to retrieve: active flags (e.g. face’s active integer flag) scalars (e.g. scalar dataset double values) vectors (e.g. vector dataset doubles x,y values)
QgsMeshDataProvider	Base class for providing data for QgsMeshLayer
QgsMeshDataProviderTemporalCapabilities	Class for handling properties relating to a mesh data provider’s temporal capabilities.
QgsMeshDataSourceInterface	Interface for mesh data sources
QgsMeshDataset	Abstract class that represents a dataset
QgsMeshDatasetGroup	Abstract class that represents a dataset group
QgsMeshDatasetGroupMetadata	QgsMeshDatasetGroupMetadata is a collection of dataset group metadata such as whether the data is vector or scalar, name
QgsMeshDatasetGroupTreeItem	Tree item for display of the mesh dataset groups. Dataset group is set of datasets with the same name, but different control variable (e.g. time)
QgsMeshDatasetIndex	QgsMeshDatasetIndex is index that identifies the dataset group (e.g. wind speed) and a dataset in this group (e.g. magnitude of wind speed in particular time)
QgsMeshDatasetMetadata	QgsMeshDatasetMetadata is a collection of mesh dataset metadata such as whether the data is valid or associated time for the
QgsMeshDatasetSourceInterface	Interface for mesh datasets and dataset groups
QgsMeshDatasetValue	QgsMeshDatasetValue represents single dataset value.
QgsMeshEditForceByLine	Class derived from QgsMeshAdvancedEditing that forces mesh based on a line
QgsMeshEditForceByPolylines	Class derived from QgsMeshEditForceByLine that forces mesh based on polyline.
QgsMeshEditRefineFaces	Class that can do a refinement of faces of a mesh.
QgsMeshEditingError	Class that represents an error during mesh editing
QgsMeshEditor	Class that makes edit operation on a mesh
QgsMeshElevationAveragingMethod	Elevation averaging method averages the values based on range defined absolute value to the model’s datum
QgsMeshLayer	Represents a mesh layer supporting display of data on structured or unstructured meshes
QgsMeshLayerElevationProperties	Mesh layer specific subclass of QgsMapLayerElevationProperties.
QgsMeshLayerSimpleLabeling	Basic implementation of the labeling interface for mesh layer.
QgsMeshLayerTemporalProperties	Implementation of map layer temporal properties for mesh layers.
QgsMeshMultiLevelsAveragingMethod	Multi level averaging method specifies limits of vertical layers from the top layer down or reversed.
QgsMeshRelativeHeightAveragingMethod	Relative height averaging method averages the values based on range defined relative to bed elevation or surface (when countedFromTop())
QgsMeshRendererMeshSettings	Represents a mesh renderer settings for mesh object
QgsMeshRendererScalarSettings	Represents a mesh renderer settings for scalar datasets
QgsMeshRendererSettings	Represents all mesh renderer settings
QgsMeshRendererVectorArrowSettings	Represents a mesh renderer settings for vector datasets displayed with
QgsMeshRendererVectorSettings	Represents a renderer settings for vector datasets
QgsMeshRendererVectorStreamlineSettings	Represents a streamline renderer settings for vector datasets displayed by streamlines
QgsMeshRendererVectorTracesSettings	Represents a trace renderer settings for vector datasets displayed by particle traces
QgsMeshRendererVectorWindBarbSettings	Represents a mesh renderer settings for vector datasets displayed with wind barbs
QgsMeshSigmaAveragingMethod	Sigma averages over the values between 0 (bed level) and 1 (surface).
QgsMeshSpatialIndex	A spatial index for QgsMeshFace or QgsMeshEdge objects.
QgsMeshTimeSettings	Represents a mesh time settings for mesh datasets
QgsMeshTransformVerticesByExpression	Class that can transform vertices of a mesh by expression
QgsMeshVectorTraceAnimationGenerator	A wrapper for QgsMeshParticuleTracesField used to render the particles. Available for Python binding
QgsTopologicalMesh	Class that wraps a QgsMesh to ensure the consistency of the mesh during editing and help to access to elements from other elements

Metadata Handling

QgsAbstractLayerMetadataProvider	Layer metadata provider backend interface.
QgsAbstractMetadataBase	An abstract base class for metadata stores.
QgsAbstractMetadataBaseValidator	Abstract base class for metadata validators.
QgsLayerMetadata	A structured metadata store for a map layer.
QgsLayerMetadataFormatter	Class for metadata formatter.
QgsLayerMetadataProviderRegistry	Registry of layer metadata provider backends.
QgsLayerMetadataProviderResult	Result record of layer metadata provider search. The result contains QGIS metadata information and all information that is required by QGIS to load the layer and to filter the results.
QgsLayerMetadataSearchResults	Container of result records from a layer metadata search.
QgsMetadataSearchContext	Metadata search context
QgsMetadataUtils	Contains utility functions for working with metadata.
QgsNativeMetadataBaseValidator	A validator for the native base QGIS metadata schema definition.
QgsNativeMetadataValidator	A validator for the native QGIS layer metadata schema definition.
QgsNativeProjectMetadataValidator	A validator for the native QGIS project metadata schema definition.
QgsProjectMetadata	A structured metadata store for a map layer.

Network Access

QgsBlockingNetworkRequest	A thread safe class for performing blocking (sync) network requests, with full support for QGIS proxy and authentication settings.
QgsFetchedContent	FetchedContent holds useful information about a network content being
QgsFileDownloader	QgsFileDownloader is a utility class for downloading files.
QgsHttpHeaders	This class implements simple http header management.
QgsNetworkAccessManager	network access manager for QGIS
QgsNetworkContentFetcher	HTTP network content fetcher. A simple method for fetching remote HTTP content and converting the content to standard formats.
QgsNetworkContentFetcherRegistry	Registry for temporary fetched files
QgsNetworkContentFetcherTask	Handles HTTP network content fetching in a background task.
QgsNetworkReplyContent	Encapsulates a network reply within a container which is inexpensive to copy and safe to pass between threads.
QgsNetworkRequestParameters	Encapsulates parameters and properties of a network request.
QgsNewsFeedModel	A model for published QGIS news feeds.
QgsNewsFeedParser	Parser for published QGIS news feeds.
QgsNewsFeedProxyModel	A proxy model for use with QgsNewsFeedModel.

Numeric Formats

QgsBasicNumericFormat	A numeric formatter which returns a simple text representation of a value.
QgsBearingNumericFormat	A numeric formatter which returns a text representation of a direction/bearing.
QgsCurrencyNumericFormat	A numeric formatter which returns a text representation of a currency value.
QgsExpressionBasedNumericFormat	A numeric formatter which uses a QgsExpression to calculate the text representation of a value.
QgsFallbackNumericFormat	A basic numeric formatter which returns a simple text representation of a value.
QgsFractionNumericFormat	A numeric formatter which returns a vulgar fractional representation of a decimal value (e.g. “1/2” instead of 0.5).
QgsGeographicCoordinateNumericFormat	A numeric formatter which returns a text representation of a geographic coordinate (latitude or longitude).
QgsNumericFormat	A numeric formatter allows for formatting a numeric value for display, using a variety of different formatting techniques (e.g. as scientific notation, currency values, percentage values, etc)
QgsNumericFormatContext	A context for numeric formats
QgsNumericFormatRegistry	The QgsNumericFormatRegistry manages registered classes of QgsNumericFormat.
QgsPercentageNumericFormat	A numeric formatter which returns a text representation of a percentage value.
QgsScientificNumericFormat	A numeric formatter which returns a scientific notation representation of a value.

PDF Rendering

QgsPdfRenderer

Utility class for rendering PDF documents.

Paint Effects

QgsBlurEffect	A paint effect which blurs a source picture, using a number of different blur methods.
QgsColorEffect	A paint effect which alters the colors (e.g., brightness, contrast) in a source picture.
QgsDrawSourceEffect	A paint effect which draws the source picture with minor or no
QgsDropShadowEffect	A paint effect which draws an offset and optionally blurred drop shadow
QgsEffectPainter	A class to manager painter saving and restoring required for effect
QgsEffectStack	A paint effect which consists of a stack of other chained paint effects
QgsGlowEffect	Base class for paint effect which draw a glow inside or outside a picture.
QgsImageOperation	Contains operations and filters which apply to QImages
QgsInnerGlowEffect	A paint effect which draws a glow within a picture.
QgsInnerShadowEffect	A paint effect which draws an offset and optionally blurred drop shadow within a picture.
QgsOuterGlowEffect	A paint effect which draws a glow outside of a picture.
QgsPaintEffect	Base class for visual effects which can be applied to QPicture drawings
QgsPaintEffectAbstractMetadata	Stores metadata about a paint effect class.
QgsPaintEffectRegistry	Registry of available paint effects.
QgsShadowEffect	Base class for paint effects which offset, blurred shadows
QgsTransformEffect	A paint effect which applies transformations (such as move, scale and rotate) to a picture.

Painting Operations

QgsGeometryPaintDevice	A paint device which converts everything renderer to a QgsGeometry representation of the rendered shapes.
QgsMaskPaintDevice	Mask painter device that can be used to register everything painted into a QPainterPath used later as clip path
QgsNullPaintDevice	Null painter device that can be used for map renderer jobs which use custom painters.
QgsPaintEngineHack	Hack to workaround Qt #5114 by disabling PatternTransform
QgsPainting	Contains miscellaneous painting utility functions.

Plot and Graph Rendering

Qgs2DPlot	Base class for 2-dimensional plot/chart/graphs.
QgsPlot	Base class for plot/chart/graphs.
QgsPlotAxis	Encapsulates the properties of a plot axis.
QgsPlotDefaultSettings	Manages default settings for plot objects

Point Cloud Layers

QgsPointCloudAttribute	Attribute for point cloud data pair of name and size in bytes
QgsPointCloudAttributeByRampRenderer	An RGB renderer for 2d visualisation of point clouds using embedded red, green and blue attributes.
QgsPointCloudAttributeCollection	Collection of point cloud attributes
QgsPointCloudAttributeModel	A model for display of available attributes from a point cloud.
QgsPointCloudAttributeProxyModel	A proxy model for filtering available attributes from a point cloud attribute model.
QgsPointCloudAttributeStatistics	Class used to store statistics of one attribute of a point cloud dataset.
QgsPointCloudBlock	Base class for storing raw data from point cloud nodes
QgsPointCloudCategory	Represents an individual category (class) from a QgsPointCloudClassifiedRenderer.
QgsPointCloudClassifiedRenderer	Renders point clouds by a classification attribute.
QgsPointCloudDataProvider	Base class for providing data for QgsPointCloudLayer
QgsPointCloudExtentRenderer	A renderer for 2d visualisation of point clouds which shows the dataset’s extents using a fill symbol.
QgsPointCloudLayer	Represents a map layer supporting display of point clouds
QgsPointCloudLayerElevationProperties	Point cloud layer specific subclass of QgsMapLayerElevationProperties.
QgsPointCloudLayerExporter	Handles exporting point cloud layers to memory layers, OGR supported files and PDAL supported files.
QgsPointCloudLayerExporterTask	QgsTask task which performs a QgsPointCloudLayerExporter layer export operation as a background task. This can be used to export a point cloud layer out to a provider without blocking the QGIS interface.
QgsPointCloudRenderContext	Encapsulates the render context for a 2D point cloud rendering operation.
QgsPointCloudRenderer	Abstract base class for 2d point cloud renderers.
QgsPointCloudRendererAbstractMetadata	Stores metadata about one point cloud renderer class.
QgsPointCloudRendererMetadata	Convenience metadata class that uses static functions to create point cloud renderer and its widget.
QgsPointCloudRendererRegistry	Registry of 2D renderers for point clouds.
QgsPointCloudRgbRenderer	An RGB renderer for 2d visualisation of point clouds using embedded red, green and blue attributes.
QgsPointCloudStatistics	Class used to store statistics of a point cloud dataset.

Print Layouts and Reports

QgsAbstractLayoutIterator	An abstract base class for QgsLayout based classes which can be exported by QgsLayoutExporter.
QgsAbstractLayoutUndoCommand	Base class for commands to undo/redo layout and layout object changes.
QgsAbstractReportSection	An abstract base class for QgsReport subsections.
QgsLayout	Base class for layouts, which can contain items such as maps, labels, scalebars, etc.
QgsLayoutAligner	Handles aligning and distributing sets of layout items.
QgsLayoutAtlas	Class used to render QgsLayout as an atlas, by iterating over the features from an associated vector layer.
QgsLayoutEffect	A QGraphicsEffect subclass used for rendering layout items onto a scene with custom composition modes.
QgsLayoutExporter	Handles rendering and exports of layouts to various formats.
QgsLayoutFrame	Base class for frame items, which form a layout multiframe item.
QgsLayoutGridSettings	Contains settings relating to the appearance, spacing and offset for layout grids.
QgsLayoutGuide	Contains the configuration for a single snap guide used by a layout.
QgsLayoutGuideCollection	Stores and manages the snap guides used by a layout.
QgsLayoutGuideProxyModel	Filters QgsLayoutGuideCollection models to guides of a single orientation (horizontal or vertical).
QgsLayoutItem	Base class for graphical items within a QgsLayout.
QgsLayoutItemAbstractMetadata	Stores metadata about one layout item class.
QgsLayoutItemAttributeTable	A layout table subclass that displays attributes from a vector layer.
QgsLayoutItemElevationProfile	A layout item subclass for elevation profile plots.
QgsLayoutItemGroup	A container for grouping several QgsLayoutItems.
QgsLayoutItemHtml	A layout multiframe subclass for HTML content.
QgsLayoutItemLabel	A layout item subclass for text labels.
QgsLayoutItemLegend	A layout item subclass for map legends.
QgsLayoutItemManualTable	A layout table subclass that displays manually entered (and formatted) content.
QgsLayoutItemMap	Layout graphical items for displaying a map.
QgsLayoutItemMapAtlasClippingSettings	Contains settings relating to clipping a layout map by the current atlas feature.
QgsLayoutItemMapGrid	An individual grid which is drawn above the map content in a QgsLayoutItemMap.
QgsLayoutItemMapGridStack	A collection of grids which is drawn above the map content in a QgsLayoutItemMap. The grid stack controls which grids are drawn and the order they are drawn in.
QgsLayoutItemMapItem	An item which is drawn inside a QgsLayoutItemMap, e.g., a grid or map overview.
QgsLayoutItemMapItemClipPathSettings	Contains settings relating to clipping a layout map by another layout item.
QgsLayoutItemMapItemStack	A collection of map items which are drawn above the map content in a QgsLayoutItemMap. The item stack controls which items are drawn and the order they are drawn in.
QgsLayoutItemMapOverview	An individual overview which is drawn above the map content in a QgsLayoutItemMap, and shows the extent of another QgsLayoutItemMap.
QgsLayoutItemMapOverviewStack	A collection of overviews which are drawn above the map content in a QgsLayoutItemMap. The overview stack controls which overviews are drawn and the order they are drawn in.
QgsLayoutItemMarker	A layout item for showing marker symbols.
QgsLayoutItemPage	Item representing the paper in a layout.
QgsLayoutItemPicture	A layout item subclass that displays SVG files or raster format images (jpg, png, …).
QgsLayoutItemPolygon	Layout item for node based polygon shapes.
QgsLayoutItemPolyline	Layout item for node based polyline shapes.
QgsLayoutItemRegistry	Registry of available layout item types.
QgsLayoutItemRenderContext	Contains settings and helpers relating to a render of a QgsLayoutItem.
QgsLayoutItemScaleBar	A layout item subclass for scale bars.
QgsLayoutItemShape	Layout item for basic filled shapes (e.g. rectangles, ellipses).
QgsLayoutItemTextTable	A text table item that reads text from string lists
QgsLayoutManager	Manages storage of a set of layouts.
QgsLayoutManagerModel	List model representing the print layouts and reports available in a layout manager.
QgsLayoutManagerProxyModel	QSortFilterProxyModel subclass for QgsLayoutManagerModel
QgsLayoutMeasurement	This class provides a method of storing measurements for use in QGIS layouts using a variety of different measurement units.
QgsLayoutMeasurementConverter	This class provides a method of converting QgsLayoutMeasurements from one unit to another.
QgsLayoutModel	A model for items attached to a layout. The model also maintains the z-order for the layout, and must be notified whenever item stacking changes.
QgsLayoutMultiFrame	Abstract base class for layout items with the ability to distribute the content to several frames (QgsLayoutFrame items).
QgsLayoutMultiFrameAbstractMetadata	Stores metadata about one layout multiframe class.
QgsLayoutNodesItem	An abstract layout item that provides generic methods for node based shapes such as polygon or polylines.
QgsLayoutNorthArrowHandler	An object which handles north-arrow type behavior for layout items.
QgsLayoutObject	A base class for objects which belong to a layout.
QgsLayoutPageCollection	A manager for a collection of pages in a layout.
QgsLayoutPoint	This class provides a method of storing points, consisting of an x and y coordinate, for use in QGIS layouts. Measurement units are stored alongside the position.
QgsLayoutProxyModel	Allows for filtering a QgsLayoutModel by item type.
QgsLayoutRenderContext	Stores information relating to the current rendering settings for a layout.
QgsLayoutReportContext	Stores information relating to the current reporting context for a layout.
QgsLayoutSerializableObject	An interface for layout objects which can be stored and read from DOM elements.
QgsLayoutSize	This class provides a method of storing sizes, consisting of a width and height, for use in QGIS layouts. Measurement units are stored alongside the size.
QgsLayoutSnapper	Manages snapping grids and preset snap lines in a layout, and handles snapping points to the nearest grid coordinate/snap line when possible.
QgsLayoutTable	A class to display a table in the print layout, and allow the table to span over multiple frames
QgsLayoutTableColumn	Stores properties of a column for a QgsLayoutTable.
QgsLayoutTableStyle	Styling option for a layout table cell
QgsLayoutUndoObjectInterface	Interface for layout objects which support undo/redo commands.
QgsLayoutUndoStack	An undo stack for QgsLayouts.
QgsLayoutUtils	Utilities for layouts.
QgsLegendModel	Item model implementation based on layer tree model for layout legend.
QgsMasterLayoutInterface	Interface for master layout type objects, such as print layouts and reports.
QgsPageSize	A named page size for layouts.
QgsPageSizeRegistry	A registry for known page sizes.
QgsPrintLayout	Print layout, a QgsLayout subclass for static or atlas-based layouts.
QgsReport	Represents a report for use with the QgsLayout engine.
QgsReportSectionContext	Current context for a report section.
QgsReportSectionFieldGroup	A report section consisting of a features
QgsReportSectionLayout	A report section consisting of a single QgsLayout body.

Processing Framework

QgsProcessing	Contains enumerations and other constants for use in processing algorithms and parameters.
QgsProcessingAlgRunnerTask	QgsTask task which runs a QgsProcessingAlgorithm in a background task.
QgsProcessingAlgorithm	Abstract base class for processing algorithms.
QgsProcessingAlgorithmInformation	Contains basic properties for a Processing algorithm.
QgsProcessingBatchFeedback	Processing feedback subclass for use when batch processing.
QgsProcessingContext	Contains information about the context in which a processing algorithm is executed.
QgsProcessingDestinationParameter	Base class for all parameter definitions which represent file or layer destinations, e.g. parameters which are used for the destination for layers output by an algorithm.
QgsProcessingFeatureBasedAlgorithm	An abstract QgsProcessingAlgorithm base class for processing algorithms which operate “feature-by-feature”.
QgsProcessingFeatureSource	QgsFeatureSource subclass which proxies methods to an underlying QgsFeatureSource, modifying results according to the settings in a QgsProcessingContext.
QgsProcessingFeatureSourceDefinition	Encapsulates settings relating to a feature source input to a processing algorithm.
QgsProcessingFeedback	Base class for providing feedback from a processing algorithm.
QgsProcessingLayerPostProcessorInterface	An interface for layer post-processing handlers for execution following a processing algorithm operation.
QgsProcessingMultiStepFeedback	Processing feedback object for multi-step operations.
QgsProcessingOutputBoolean	A boolean output for processing algorithms.
QgsProcessingOutputConditionalBranch	A conditional branch output for processing algorithms, which represents a possible model logic flow which branches out from this algorithm.
QgsProcessingOutputDefinition	Base class for the definition of processing outputs.
QgsProcessingOutputFile	A file output for processing algorithms.
QgsProcessingOutputFolder	A folder output for processing algorithms.
QgsProcessingOutputHtml	A HTML file output for processing algorithms.
QgsProcessingOutputLayerDefinition	Encapsulates settings relating to a feature sink or output raster layer for a processing algorithm.
QgsProcessingOutputMapLayer	A map layer output for processing algorithms, where layers may be either vector or raster.
QgsProcessingOutputMultipleLayers	A multi-layer output for processing algorithms which create map layers, when the number and nature of the output layers is not predefined.
QgsProcessingOutputNumber	A numeric output for processing algorithms.
QgsProcessingOutputPointCloudLayer	A pointcloud layer output for processing algorithms.
QgsProcessingOutputRasterLayer	A raster layer output for processing algorithms.
QgsProcessingOutputString	A string output for processing algorithms.
QgsProcessingOutputVariant	A variant output for processing algorithms, capable of storing any QVariant value.
QgsProcessingOutputVectorLayer	A vector layer output for processing algorithms.
QgsProcessingOutputVectorTileLayer	A vector tile layer output for processing algorithms.
QgsProcessingParameterAggregate	A parameter for “aggregate” configurations, which consist of a definition of desired output fields, types, and aggregate used to populate then.
QgsProcessingParameterAlignRasterLayers	A parameter for Processing algorithms that need a list of input raster layers to align - this parameter provides Processing framework’s adapter for QList<QgsAlignRaster.Item>.
QgsProcessingParameterAnnotationLayer	An annotation layer parameter for processing algorithms.
QgsProcessingParameterArea	A double numeric parameter for area values. Linked to a source layer or CRS parameter to determine what units the area values are in.
QgsProcessingParameterAuthConfig	A string parameter for authentication configuration ID values.
QgsProcessingParameterBand	A raster band parameter for Processing algorithms.
QgsProcessingParameterBoolean	A boolean parameter for processing algorithms.
QgsProcessingParameterColor	A color parameter for processing algorithms.
QgsProcessingParameterCoordinateOperation	A coordinate operation parameter for processing algorithms, for selection between available coordinate operations to use when projecting between a source and destination coordinate reference system.
QgsProcessingParameterCrs	A coordinate reference system parameter for processing algorithms.
QgsProcessingParameterDatabaseSchema	A database schema parameter for processing algorithms, allowing users to select from existing schemas on a registered database connection.
QgsProcessingParameterDatabaseTable	A database table name parameter for processing algorithms, allowing users to select from existing database tables on a registered database connection (or optionally to enter a new table name).
QgsProcessingParameterDateTime	A datetime (or pure date or time) parameter for processing algorithms.
QgsProcessingParameterDefinition	Base class for the definition of processing parameters.
QgsProcessingParameterDistance	A double numeric parameter for distance values. Linked to a source layer or CRS parameter to determine what units the distance values are in.
QgsProcessingParameterDuration	A double numeric parameter for duration values. The returned value will always be in milliseconds.
QgsProcessingParameterDxfLayers	A parameter for Processing algorithms that need a list of input vector layers to export as DXF file - this parameter provides Processing framework’s adapter for QList<QgsDxfExport.DxfLayer>.
QgsProcessingParameterEnum	An enum based parameter for processing algorithms, allowing for selection from predefined values.
QgsProcessingParameterExpression	An expression parameter for processing algorithms.
QgsProcessingParameterExtent	A rectangular map extent parameter for processing algorithms.
QgsProcessingParameterFeatureSink	A feature sink output for processing algorithms.
QgsProcessingParameterFeatureSource	An input feature source (such as vector layers) parameter for processing algorithms.
QgsProcessingParameterField	A vector layer or feature source field parameter for processing algorithms.
QgsProcessingParameterFieldMapping	A parameter for “field mapping” configurations, which consist of a definition of desired output fields, types, and expressions used to populate then.
QgsProcessingParameterFile	An input file or folder parameter for processing algorithms.
QgsProcessingParameterFileDestination	A generic file based destination parameter, for specifying the destination path for a file (non-map layer) created by the algorithm.
QgsProcessingParameterFolderDestination	A folder destination parameter, for specifying the destination path for a folder created by the algorithm or used for creating new files within the algorithm.
QgsProcessingParameterGeometry	A geometry parameter for processing algorithms.
QgsProcessingParameterLayout	A print layout parameter, allowing users to select a print layout.
QgsProcessingParameterLayoutItem	A print layout item parameter, allowing users to select a particular item from a print layout.
QgsProcessingParameterLimitedDataTypes	Can be inherited by parameters which require limits to their acceptable data types.
QgsProcessingParameterMapLayer	A map layer parameter for processing algorithms.
QgsProcessingParameterMapTheme	A map theme parameter for processing algorithms, allowing users to select an existing map theme from a project.
QgsProcessingParameterMatrix	A table (matrix) parameter for processing algorithms.
QgsProcessingParameterMeshDatasetGroups	A parameter for processing algorithms that need a list of mesh dataset groups.
QgsProcessingParameterMeshDatasetTime	A parameter for processing algorithms that need a list of mesh dataset index from time parameter.
QgsProcessingParameterMeshLayer	A mesh layer parameter for processing algorithms.
QgsProcessingParameterMultipleLayers	A parameter for processing algorithms which accepts multiple map layers.
QgsProcessingParameterNumber	A numeric parameter for processing algorithms.
QgsProcessingParameterPoint	A point parameter for processing algorithms.
QgsProcessingParameterPointCloudAttribute	A point cloud layer attribute parameter for Processing algorithms.
QgsProcessingParameterPointCloudDestination	A point cloud layer destination parameter, for specifying the destination path for a point cloud layer created by the algorithm.
QgsProcessingParameterPointCloudLayer	A point cloud layer parameter for processing algorithms.
QgsProcessingParameterProviderConnection	A data provider connection parameter for processing algorithms, allowing users to select from available registered connections for a particular data provider.
QgsProcessingParameterRange	A numeric range parameter for processing algorithms.
QgsProcessingParameterRasterDestination	A raster layer destination parameter, for specifying the destination path for a raster layer created by the algorithm.
QgsProcessingParameterRasterLayer	A raster layer parameter for processing algorithms.
QgsProcessingParameterScale	A double numeric parameter for map scale values.
QgsProcessingParameterString	A string parameter for processing algorithms.
QgsProcessingParameterTinInputLayers	A parameter for processing algorithms that need a list of input vector layers to construct a TIN.
QgsProcessingParameterType	Makes metadata of processing parameters available.
QgsProcessingParameterVectorDestination	A vector layer destination parameter, for specifying the destination path for a vector layer created by the algorithm.
QgsProcessingParameterVectorLayer	A vector layer (with or without geometry) parameter for processing algorithms. Consider using the more versatile QgsProcessingParameterFeatureSource wherever possible.
QgsProcessingParameterVectorTileDestination	A vector tile layer destination parameter, for specifying the destination path for a vector tile layer created by the algorithm.
QgsProcessingParameterVectorTileWriterLayers	A parameter for processing algorithms that need a list of input vector layers for writing of vector tiles - this parameter provides processing framework’s adapter for QList<QgsVectorTileWriter.Layer>.
QgsProcessingParameterVolume	A double numeric parameter for volume values. Linked to a source layer or CRS parameter to determine what units the volume values are in.
QgsProcessingParameters	A collection of utilities for working with parameters when running a processing algorithm.
QgsProcessingProvider	Abstract base class for processing providers.
QgsProcessingRegistry	Registry for various processing components, including providers, algorithms and various parameters and outputs.
QgsProcessingUtils	Utility functions for use with processing classes.

Processing Framework - Models

QgsProcessingModelAlgorithm	Model based algorithm with processing.
QgsProcessingModelChildAlgorithm	Child algorithm representing a single component of a QgsProcessingModelAlgorithm.
QgsProcessingModelChildAlgorithmResult	Encapsulates the results of running a child algorithm within a model
QgsProcessingModelChildDependency	Contains details of a child algorithm dependency.
QgsProcessingModelChildParameterSource	Source for the value of a parameter for a child algorithm within a model.
QgsProcessingModelComment	Represents a comment in a model.
QgsProcessingModelComponent	Represents a component of a model algorithm.
QgsProcessingModelGroupBox	Represents a group box in a model.
QgsProcessingModelOutput	Represents a final output created by the model.
QgsProcessingModelParameter	Represents an input parameter used by the model.
QgsProcessingModelResult	Encapsulates the results of running a Processing model

QGIS Projects

QgsMapViewsManager	Manages storage of a set of views.
QgsProject	Encapsulates a QGIS project, including sets of map layers and their styles, layouts, annotations, canvases, etc.
QgsProjectBadLayerHandler	Interface for classes that handle missing layer files when reading project file.
QgsProjectDirtyBlocker	Temporarily blocks QgsProject “dirtying” for the lifetime of the object.
QgsProjectDisplaySettings	Contains settings and properties relating to how a QgsProject should display values such as map coordinates and bearings.
QgsProjectElevationProperties	Contains elevation properties for a QgsProject.
QgsProjectFileTransform	Class to convert from older project file versions to newer.
QgsProjectGpsSettings	Contains settings and properties relating to how a QgsProject should interact with a GPS device.
QgsProjectProperty	An Abstract Base Class for QGIS project property hierarchys.
QgsProjectPropertyKey	Project property key node.
QgsProjectPropertyValue	Project property value node, contains a QgsProjectPropertyKey’s value.
QgsProjectServerValidator	Validates the server specific parts of the configuration of a QGIS project.
QgsProjectStorage	Abstract interface for project storage - to be implemented by various backends and registered in QgsProjectStorageRegistry.
QgsProjectStorageRegistry	Registry of storage backends that QgsProject may use.
QgsProjectStyleDatabaseModel	List model representing the style databases associated with a QgsProject.
QgsProjectStyleDatabaseProxyModel	A proxy model for filtering QgsProjectStyleDatabaseModel.
QgsProjectStyleSettings	Contains settings and properties relating to how a QgsProject should handle styling.
QgsProjectTimeSettings	Contains temporal settings and properties for the project, this may be used when animating maps or showing temporal layers.
QgsProjectTranslator	An interface for objects which can translate project strings.
QgsProjectUtils	Contains utility functions for working with QGIS projects.
QgsProjectVersion	A class to describe the version of a project.
QgsProjectViewSettings	Contains settings and properties relating to how a QgsProject should be displayed inside map canvas, e.g. map scales and default view extent for the project.

Raster Layers

QgsBilinearRasterResampler	Bilinear Raster Resampler
QgsBrightnessContrastFilter	Brightness/contrast and gamma correction filter pipe for rasters.
QgsClipToMinMaxEnhancement	A raster contrast enhancement that will clip a value to the specified min/max range.
QgsColorRampShader	A ramp shader will color a raster pixel based on a list of values ranges in a ramp.
QgsContrastEnhancement	Manipulates raster or point cloud pixel values so that they enhanceContrast or clip into a specified numerical range according to the specified ContrastEnhancementAlgorithm.
QgsContrastEnhancementFunction	A contrast enhancement function is the base class for all raster contrast enhancements.
QgsCubicRasterResampler	Cubic Raster Resampler.
QgsExifTools	Contains utilities for working with EXIF tags in images.
QgsHillshadeRenderer	A renderer for generating live hillshade models.
QgsHueSaturationFilter	Color and saturation filter pipe for rasters.
QgsImageFetcher	Handles asynchronous download of images
QgsLinearMinMaxEnhancement	A color enhancement function that performs a linear enhanceContrast between min and max.
QgsLinearMinMaxEnhancementWithClip	A linear enhanceContrast enhancement that first clips to min max and then enhanceContrastes linearly between min and max.
QgsMultiBandColorRenderer	Renderer for multiband images with the color components
QgsPalettedRasterRenderer	Renderer for paletted raster images.
QgsRaster	Raster namespace.
QgsRasterAttributeTable	The QgsRasterAttributeTable class represents a Raster Attribute Table (RAT).
QgsRasterBandStats	The RasterBandStats struct is a container for statistics about a single raster band.
QgsRasterBlock	Raster data container.
QgsRasterBlockFeedback	Feedback object tailored for raster block reading.
QgsRasterChecker	This is a helper class for unit tests that need to write an image and compare it to an expected result or render time.
QgsRasterContourRenderer	Raster renderer that generates contours on the fly for a source raster band.
QgsRasterDataProvider	Base class for raster data providers.
QgsRasterDataProviderElevationProperties	Handles elevation related properties for a raster data provider.
QgsRasterDataProviderTemporalCapabilities	Implementation of data provider temporal properties for QgsRasterDataProviders.
QgsRasterDrawer	The drawing pipe for raster layers.
QgsRasterFileWriter	The raster file writer which allows you to save a raster to a new file.
QgsRasterFileWriterTask	QgsTask task which performs a QgsRasterFileWriter layer saving operation as a background task. This can be used to save a raster layer out to a file without blocking the QGIS interface.
QgsRasterHistogram	The QgsRasterHistogram is a container for histogram of a single raster band. It is used to cache computed histograms in raster providers.
QgsRasterIdentifyResult	Raster identify results container.
QgsRasterInterface	Base class for processing filters like renderers, reprojector, resampler etc.
QgsRasterIterator	Iterator for sequentially processing raster cells.
QgsRasterLayer	Represents a raster layer.
QgsRasterLayerElevationProperties	Raster layer specific subclass of QgsMapLayerElevationProperties.
QgsRasterLayerTemporalProperties	Implementation of map layer temporal properties for raster layers.
QgsRasterLayerUtils	Contains utility functions for working with raster layers.
QgsRasterMinMaxOrigin	This class describes the origin of min/max values. It does not store by itself the min/max values.
QgsRasterNuller	Raster pipe that deals with null values.
QgsRasterPipe	Contains a pipeline of raster interfaces for sequential raster processing.
QgsRasterProjector	Implements approximate projection support for optimised raster transformation.
QgsRasterPyramid	This struct is used to store pyramid info for the raster layer.
QgsRasterRange	Raster values range container. Represents range of values between min and max including min and max value.
QgsRasterRenderer	Raster renderer pipe that applies colors to a raster.
QgsRasterRendererRegistry	Registry for raster renderers.
QgsRasterRendererUtils	Utility functions for raster renderers.
QgsRasterResampleFilter	Resample filter pipe for rasters.
QgsRasterResampler	Interface for resampling rasters (e.g. to have a smoother appearance)
QgsRasterResamplerV2	Interface for resampling rasters (V2) (e.g. to have a smoother appearance), which provides a more efficient interface vs QgsRasterResampler.
QgsRasterShader	Interface for all raster shaders.
QgsRasterShaderFunction	The raster shade function applies a shader to a pixel at render time - typically used to render grayscale images as false color.
QgsRasterSingleColorRenderer	Raster renderer which renders all data pixels using a single color.
QgsRasterTransparency	Defines the list of pixel values to be considered as transparent or semi transparent when rendering rasters.
QgsRasterViewPort	This class provides details of the viewable area that a raster will be rendered into.
QgsSingleBandColorDataRenderer	Raster renderer pipe for single band color.
QgsSingleBandGrayRenderer	Raster renderer pipe for single band gray.
QgsSingleBandPseudoColorRenderer	Raster renderer pipe for single band pseudocolor.

Scale Bars

QgsDoubleBoxScaleBarRenderer	Double box with alternating colors.
QgsHollowScaleBarRenderer	Scalebar style that draws a single box with alternating color for the segments, with horizontal lines through alternating segments. AKA “South African” style.
QgsNumericScaleBarRenderer	A scale bar style that draws text in the form of ‘1:XXXXX’.
QgsScaleBarRenderer	Abstract base class for scale bar renderers.
QgsScaleBarRendererRegistry	The QgsScaleBarRendererRegistry manages registered scalebar renderers.
QgsScaleBarSettings	The QgsScaleBarSettings class stores the appearance and layout settings for scalebar drawing with QgsScaleBarRenderer.
QgsSingleBoxScaleBarRenderer	Scalebar style that draws a single box with alternating color for the segments.
QgsSteppedLineScaleBarRenderer	Scalebar style that draws a stepped line representation of a scalebar.
QgsTicksScaleBarRenderer	A scale bar that draws segments using short ticks.

Sensor Handling

QgsAbstractSensor	An abstract base class for sensor classes
QgsIODeviceSensor	An abstract class QIODevice-based sensor classes
QgsSensorAbstractMetadata	Stores metadata about a sensor class.
QgsSensorManager	Manages sensors.
QgsSensorModel	A QAbstractItemModel subclass for showing sensors within a QgsSensorManager.
QgsSensorRegistry	Registry of available sensor types.
QgsSerialPortSensor	A serial port sensor class
QgsTcpSocketSensor	A TCP socket sensor class
QgsUdpSocketSensor	A UDP socket sensor class

Settings Handling

PyQgsSettingsEntryEnumFlag	class PyQgsSettingsEntryEnumFlag An enum settings entry. since QGIS 3.20
QgsSettings	This class is a composition of two QSettings instances:
QgsSettingsEntryBase	Represent settings entry and provides methods for reading and writing settings values. Different subclasses are provided for different settings types with metainformations to validate set values and provide more accurate settings description for the gui.
QgsSettingsEntryBaseTemplateQColorBase	Base abstract class for settings entries with typed get and set methods
QgsSettingsEntryBaseTemplateQStringBase	Base abstract class for settings entries with typed get and set methods
QgsSettingsEntryBaseTemplateQStringListBase	Base abstract class for settings entries with typed get and set methods
QgsSettingsEntryBaseTemplateQVariantBase	Base abstract class for settings entries with typed get and set methods
QgsSettingsEntryBaseTemplateQVariantMapBase	Base abstract class for settings entries with typed get and set methods
QgsSettingsEntryBaseTemplateboolBase	Base abstract class for settings entries with typed get and set methods
QgsSettingsEntryBaseTemplatedoubleBase	Base abstract class for settings entries with typed get and set methods
QgsSettingsEntryBaseTemplateintBase	Base abstract class for settings entries with typed get and set methods
QgsSettingsEntryBool	A boolean settings entry.
QgsSettingsEntryColor	A color settings entry.
QgsSettingsEntryDouble	A double settings entry.
QgsSettingsEntryGroup	Creates a group of setting which have a common definition of base key
QgsSettingsEntryInteger	An integer settings entry.
QgsSettingsEntryString	A string settings entry.
QgsSettingsEntryStringList	A string list settings entry.
QgsSettingsEntryVariant	A variant settings entry.
QgsSettingsEntryVariantMap	A string list settings entry.
QgsSettingsRegistry	QgsSettingsRegistry is used for settings introspection and collects a list of child QgsSettingsRegistry and a list of child QgsSettingsRegistry
QgsSettingsRegistryCore	QgsSettingsRegistryCore is used for settings introspection and collects all QgsSettingsEntry instances of core.
QgsSettingsTree	QgsSettingsTree holds the tree structure for the settings in QGIS core
QgsSettingsTreeNamedListNode	QgsSettingsTreeNamedListNode is a named list tree node for the settings tree to help organizing and introspecting the tree. the named list node is used to store a group of settings under a dynamically named key.
QgsSettingsTreeNode	QgsSettingsTreeNode is a tree node for the settings tree to help organizing and introspecting the tree.

Symbology and Vector Renderers

Qgs25DRenderer	A vector renderer which represents 3D features in an isometric view.
QgsAbstractBrushedLineSymbolLayer	Base class for line symbol layer types which draws line sections using a QBrush.
QgsAnimatedMarkerSymbolLayer	Animated marker symbol layer class.
QgsArrowSymbolLayer	Line symbol layer used for representing lines as arrows.
QgsCategorizedSymbolRenderer	Constructor for QgsCategorizedSymbolRenderer.
QgsCentroidFillSymbolLayer	A fill symbol layer which renders a marker symbol at the centroid of a polygon geometry.
QgsColorBrewerPalette	Contains utility functions for working with Color Brewer color schemes.
QgsCombinedStyleModel	A model which contains entities from multiple QgsStyle databases.
QgsCptCityAllRampsItem	An “All ramps item”, which contains all items in a flat hierarchy
QgsCptCityArchive	Represents a CPT City color scheme.
QgsCptCityBrowserModel	A custom item model for display of CPT City color palettes.
QgsCptCityCollectionItem	A Collection: logical collection of subcollections and color ramps
QgsCptCityColorRampItem	Item that represents a layer that can be opened with one of the
QgsCptCityDataItem	Base class for all items in the model
QgsCptCityDirectoryItem	A directory: contains subdirectories and color ramps
QgsCptCitySelectionItem	A selection: contains subdirectories and color ramps
QgsEllipseSymbolLayer	A symbol layer for rendering objects with major and minor axis (e.g. ellipse, rectangle, etc).
QgsEmbeddedSymbolRenderer	A vector feature renderer which uses embedded feature symbology to render per-feature symbols.
QgsFeatureRenderer	Abstract base class for all 2D vector feature renderers.
QgsFeatureRendererGenerator	An interface for objects which generate feature renderers for vector layers.
QgsFillSymbol	A fill symbol type, for rendering Polygon and MultiPolygon geometries.
QgsFillSymbolLayer	Abstract base class for fill symbol layers.
QgsFilledLineSymbolLayer	A line symbol layer type which fills a stroked line with a QgsFillSymbol.
QgsFilledMarkerSymbolLayer	Filled marker symbol layer, consisting of a shape which is rendered using a QgsFillSymbol. This allows the symbol to support advanced styling of the interior and stroke of the shape.
QgsFontMarkerSymbolLayer	Constructs a font marker symbol layer.
QgsGeometryGeneratorSymbolLayer	A symbol layer subclass which alters rendered feature shapes through the use of QGIS expressions.
QgsGradientFillSymbolLayer	A fill symbol layer which draws a smooth color gradient over a polygon.
QgsGraduatedSymbolRenderer	A vector feature renderer which uses numeric attributes to classify features into different ranges.
QgsHashedLineSymbolLayer	Line symbol layer type which draws repeating line sections along a line feature.
QgsHeatmapRenderer	A renderer which draws points as a live heatmap
QgsImageFillSymbolLayer	Base class for polygon renderers generating texture images
QgsInterpolatedLineColor	Class defining color to render mesh datasets. The color can vary depending on the dataset value.
QgsInterpolatedLineRenderer	Represents a simple line renderer with width and color varying depending on values.
QgsInterpolatedLineSymbolLayer	A symbol layer that represents vector layer line feature as interpolated line The interpolation is done between two values defined at the
QgsInterpolatedLineWidth	Represents a width than can vary depending on values
QgsInvertedPolygonRenderer	QgsInvertedPolygonRenderer is a polygon-only feature renderer used to display features inverted, where the exterior is turned to an interior and where the exterior theoretically spans the entire plane, allowing to mask the surroundings of some features.
QgsLegendSymbolItem	The 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.
QgsLinePatternFillSymbolLayer	A symbol fill consisting of repeated parallel lines.
QgsLineSymbol	A line symbol type, for rendering LineString and MultiLineString geometries.
QgsLineSymbolLayer	Abstract base class for line symbol layers.
QgsLinearReferencingSymbolLayer	Line symbol layer used for decorating accordingly to linear referencing.
QgsLineburstSymbolLayer	Line symbol layer type which draws a gradient pattern perpendicularly along a line.
QgsMapInfoSymbolConversionContext	Context for a MapInfo symbol conversion operation.
QgsMapInfoSymbolConverter	Handles conversion of MapInfo symbols to QGIS symbology.
QgsMarkerLineSymbolLayer	Line symbol layer type which draws repeating marker symbols along a line feature.
QgsMarkerSymbol	A marker symbol type, for rendering Point and MultiPoint geometries.
QgsMarkerSymbolLayer	Abstract base class for marker symbol layers.
QgsMaskMarkerSymbolLayer	Special symbol layer that uses its sub symbol as a selective mask
QgsMergedFeatureRenderer	QgsMergedFeatureRenderer is a polygon or line-only feature renderer used to renderer a set of features merged (or dissolved) into a single geometry.
QgsNullSymbolRenderer	Null symbol renderer, which draws no symbols for features by default, but allows for labeling and diagrams for the layer.
QgsPointClusterRenderer	A renderer that automatically clusters points with the same geographic position.
QgsPointDisplacementRenderer	A renderer that automatically displaces points with the same geographic location.
QgsPointDistanceRenderer	An abstract base class for distance based point renderers (e.g., clusterer and displacement renderers).
QgsPointPatternFillSymbolLayer	A fill symbol layer which fills polygon shapes with repeating marker symbols.
QgsRandomMarkerFillSymbolLayer	A fill symbol layer which places markers at random locations within polygons.
QgsRasterFillSymbolLayer	A class for filling symbols with a repeated raster image.
QgsRasterLineSymbolLayer	Line symbol layer type which draws line sections using a raster image file.
QgsRasterMarkerSymbolLayer	Raster marker symbol layer class.
QgsRendererAbstractMetadata	Stores metadata about one renderer class.
QgsRendererCategory	Represents an individual category (class) from a QgsCategorizedSymbolRenderer.
QgsRendererMetadata	Convenience metadata class that uses static functions to create renderer and its widget.
QgsRendererRange	Creates a renderer symbol range
QgsRendererRangeLabelFormat	Deprecated since version 3.10.
QgsRendererRegistry	Registry of renderers.
QgsRuleBasedRenderer	Rule based renderer.
QgsSVGFillSymbolLayer	A class for filling symbols with a repeated SVG file.
QgsShapeburstFillSymbolLayer	Constructor for QgsShapeburstFillSymbolLayer.
QgsSimpleFillSymbolLayer	Renders polygons using a single fill and stroke color.
QgsSimpleLineSymbolLayer	A simple line symbol layer, which renders lines using a line in a variety of styles (e.g. solid, dotted, dashed).
QgsSimpleMarkerSymbolLayer	Simple marker symbol layer, consisting of a rendered shape with solid fill color and an stroke.
QgsSimpleMarkerSymbolLayerBase	Abstract base class for simple marker symbol layers. Handles creation of the symbol shapes but leaves the actual drawing of the symbols to subclasses.
QgsSingleSymbolRenderer	Constructor for QgsSingleSymbolRenderer.
QgsStyle	Constructor for QgsStyle, with the specified parent object.
QgsStyleColorRampEntity	A color ramp entity for QgsStyle databases.
QgsStyleEntityInterface	An interface for entities which can be placed in a QgsStyle database.
QgsStyleEntityVisitorInterface	An interface for classes which can visit style entity (e.g. symbol) nodes (using the visitor pattern).
QgsStyleLabelSettingsEntity	A label settings entity for QgsStyle databases.
QgsStyleLegendPatchShapeEntity	A legend patch shape entity for QgsStyle databases.
QgsStyleModel	A QAbstractItemModel subclass for showing symbol and color ramp entities contained within a QgsStyle database.
QgsStyleProxyModel	A QSortFilterProxyModel subclass for showing filtered symbol and color ramps entries from a QgsStyle database.
QgsStyleSymbol3DEntity	A 3d symbol entity for QgsStyle databases.
QgsStyleSymbolEntity	A symbol entity for QgsStyle databases.
QgsStyleTextFormatEntity	A text format entity for QgsStyle databases.
QgsSvgCache	A cache for images / pictures derived from SVG files
QgsSvgMarkerSymbolLayer	Constructs SVG marker symbol layer with picture from given absolute path to a SVG file
QgsSymbol	Abstract base class for all rendered symbols.
QgsSymbolAnimationSettings	Contains settings relating to symbol animation.
QgsSymbolBufferSettings	Contains settings relating to symbol buffers, which draw a “halo” effect around the symbol.
QgsSymbolLayer	Constructor for QgsSymbolLayer.
QgsSymbolLayerAbstractMetadata	Stores metadata about one symbol layer class.
QgsSymbolLayerId	We may need stable references to symbol layers, when pointers to symbol layers is not usable (when a symbol or a feature renderer is cloned for example).
QgsSymbolLayerMetadata	Convenience metadata class that uses static functions to create symbol layer and its widget.
QgsSymbolLayerReference	Type used to refer to a specific symbol layer in a symbol of a layer.
QgsSymbolLayerRegistry	Registry of available symbol layer classes.
QgsSymbolLayerUtils	Contains utility functions for working with symbols and symbol layers.
QgsSymbolLevelItem
QgsSymbolRenderContext	Constructor for QgsSymbolRenderContext
QgsTemplatedLineSymbolLayerBase	Base class for templated line symbols, e.g. line symbols which draw markers or hash lines at intervals along the line feature.
QgsVectorFieldSymbolLayer	A symbol layer class for displaying displacement arrows based on point layer attributes.

Text Rendering

QgsFontDownloadDetails	Encapsulates details required for downloading a font.
QgsFontManager	Manages available fonts and font installation for a QGIS instance.
QgsTextBackgroundSettings	Container for settings relating to a text background object.
QgsTextBlock	Represents a block of text consisting of one or more QgsTextFragment objects.
QgsTextBlockFormat	Stores information relating to individual block formatting.
QgsTextBufferSettings	Container for settings relating to a text buffer.
QgsTextCharacterFormat	Stores information relating to individual character formatting.
QgsTextDocument	Represents a document consisting of one or more QgsTextBlock objects.
QgsTextDocumentMetrics	Contains pre-calculated metrics of a QgsTextDocument.
QgsTextDocumentRenderContext	Encapsulates the context in which a text document is to be rendered.
QgsTextFormat	Container for all settings relating to text rendering.
QgsTextFragment	Stores a fragment of document along with formatting overrides to be used when rendering the fragment.
QgsTextMaskSettings	Container for settings relating to a selective masking around a text.
QgsTextRenderer	Handles rendering text using rich formatting options, including drop shadows, buffers and background shapes.
QgsTextRendererUtils	Utility functions for text rendering.
QgsTextShadowSettings	Container for settings relating to a text shadow.

Tiled Scene Layers

QgsCesiumUtils	Contains utilities for working with Cesium data.
QgsTiledSceneBoundingVolume	Represents a bounding volume for a tiled scene.
QgsTiledSceneDataProvider	Base class for data providers for QgsTiledSceneLayer
QgsTiledSceneIndex	An index for tiled scene data providers.
QgsTiledSceneLayer	Represents a map layer supporting display of tiled scene objects.
QgsTiledSceneLayerElevationProperties	Tiled scene layer specific subclass of QgsMapLayerElevationProperties.
QgsTiledSceneRenderContext	Encapsulates the render context for a 2D tiled scene rendering operation.
QgsTiledSceneRenderer	Abstract base class for 2d tiled scene renderers.
QgsTiledSceneRendererAbstractMetadata	Stores metadata about one tiled scene renderer class.
QgsTiledSceneRendererMetadata	Convenience metadata class that uses static functions to create tiled scene renderer and its widget.
QgsTiledSceneRendererRegistry	Registry of 2D renderers for tiled scenes.
QgsTiledSceneRequest	Tiled scene data request.
QgsTiledSceneTextureRenderer	Renders tiled scene layers using textures.
QgsTiledSceneTile	Represents an individual tile from a tiled scene data source.
QgsTiledSceneWireframeRenderer	Renders tiled scene layers using the raw primitive wireframes.

Validity Checks

QgsAbstractValidityCheck	Abstract base class for individual validity checks.
QgsLayoutValidityCheckContext	Validity check context for print layout validation.
QgsValidityCheckContext	Base class for validity check contexts.
QgsValidityCheckRegistry	This class keeps a list of QgsAbstractValidityCheck checks which can be used when performing validity checks.
QgsValidityCheckResult	Represents an individual result from a validity check run by a QgsAbstractValidityCheck subclass.

Vector Layers

QgsAuxiliaryLayer	Class allowing to manage the auxiliary storage for a vector layer.
QgsCodedFieldDomain	Definition of a coded / enumerated field domain.
QgsCodedValue	Associates a code and a value.
QgsFieldDomain	Base class for field domains.
QgsGlobFieldDomain	Definition of a field domain for field content validated by a glob.
QgsRangeFieldDomain	Definition of a numeric field domain with a range of validity for values.
QgsTrackedVectorLayerTools
QgsVectorDataProvider	This is the base class for vector data providers.
QgsVectorDataProviderTemporalCapabilities	Implementation of data provider temporal properties for QgsVectorDataProviders.
QgsVectorLayer	Represents a vector layer which manages a vector based data sets.
QgsVectorLayerCache	This class caches features of a given QgsVectorLayer.
QgsVectorLayerEditBuffer	Stores queued vector layer edit operations prior to committing changes to the layer’s data provider.
QgsVectorLayerEditBufferGroup	The edit buffer group manages a group of edit buffers.
QgsVectorLayerEditPassthrough
QgsVectorLayerEditUtils	Contains utility functions for editing vector layers.
QgsVectorLayerElevationProperties	Vector layer specific subclass of QgsMapLayerElevationProperties.
QgsVectorLayerExporter	A convenience class for exporting vector layers to a destination data provider.
QgsVectorLayerExporterTask	QgsTask task which performs a QgsVectorLayerExporter layer export operation as a background task. This can be used to export a vector layer out to a provider without blocking the QGIS interface.
QgsVectorLayerFeatureCounter	Counts the features in a QgsVectorLayer in task.
QgsVectorLayerFeatureIterator	A feature iterator which iterates over features from a QgsVectorLayer.
QgsVectorLayerFeatureSource	Partial snapshot of vector layer’s state (only the members necessary for access to features)
QgsVectorLayerJoinBuffer	Manages joined fields for a vector layer.
QgsVectorLayerJoinInfo	Defines left outer join from our vector layer to some other vector layer.
QgsVectorLayerSelectedFeatureSource	QgsFeatureSource subclass for the selected features from a QgsVectorLayer.
QgsVectorLayerSelectionProperties	Implementation of layer selection properties for vector layers.
QgsVectorLayerTemporalContext	Encapsulates the context in which a QgsVectorLayer’s temporal capabilities will be applied
QgsVectorLayerTemporalProperties	Implementation of map layer temporal properties for vector layers.
QgsVectorLayerTools	Methods in this class are used to handle basic operations on vector layers. With an implementation of this class, parts of the application can ask for an operation to be done and the implementation will then take care of it.
QgsVectorLayerToolsContext	Contains settings which reflect the context in which vector layer tool operations should consider.
QgsVectorLayerUndoCommand	Base class for undo commands within a QgsVectorLayerEditBuffer.
QgsVectorLayerUndoCommandAddAttribute	Undo command for adding a new attribute to a vector layer.
QgsVectorLayerUndoCommandAddFeature	Undo command for adding a feature to a vector layer.
QgsVectorLayerUndoCommandChangeAttribute	Undo command for modifying an attribute of a feature from a vector layer.
QgsVectorLayerUndoCommandChangeGeometry	Undo command for modifying the geometry of a feature from a vector layer.
QgsVectorLayerUndoCommandDeleteAttribute	Undo command for removing an existing attribute from a vector layer.
QgsVectorLayerUndoCommandDeleteFeature	Undo command for deleting a feature from a vector layer.
QgsVectorLayerUndoCommandRenameAttribute	Undo command for renaming an existing attribute of a vector layer.
QgsVectorLayerUndoPassthroughCommand	Undo command for vector layer in transaction group mode.
QgsVectorLayerUndoPassthroughCommandAddAttribute	Undo command for adding attri to a vector layer in transaction group.
QgsVectorLayerUndoPassthroughCommandAddFeatures	Undo command for adding a feature to a vector layer in transaction group mode.
QgsVectorLayerUndoPassthroughCommandChangeAttribute	Undo command for changing attr value from a vector layer in transaction group.
QgsVectorLayerUndoPassthroughCommandChangeAttributes	Undo command for changing attributes’ values from a vector layer in transaction group.
QgsVectorLayerUndoPassthroughCommandChangeGeometry	Undo command for changing feature geometry from a vector layer in transaction group.
QgsVectorLayerUndoPassthroughCommandDeleteAttribute	Undo command for deleting attri of a vector layer in transaction group.
QgsVectorLayerUndoPassthroughCommandDeleteFeatures	Undo command for deleting features from a vector layer in transaction group.
QgsVectorLayerUndoPassthroughCommandRenameAttribute	Undo command for deleting attri of a vector layer in transaction group.
QgsVectorLayerUndoPassthroughCommandUpdate	Undo command for running a specific sql query in transaction group.
QgsVectorLayerUtils	Contains utility methods for working with QgsVectorLayers.

Vector Tile Layers

QgsMapBoxGlStyleAbstractSource	Abstract base class for MapBox GL style sources.
QgsMapBoxGlStyleConversionContext	Context for a MapBox GL style conversion operation.
QgsMapBoxGlStyleConverter	Handles conversion of MapBox GL styles to QGIS vector tile renderers and labeling settings.
QgsMapBoxGlStyleRasterSource	Encapsulates a MapBox GL style raster source.
QgsMapBoxGlStyleRasterSubLayer	Encapsulates a MapBox GL style raster sub layer.
QgsVectorTileBasicLabeling	Basic labeling configuration for vector tile layers. It contains a definition of a list of labeling styles, where each labeling style is a combination of sub-layer name, geometry type, filter expression, zoom range and label settings.
QgsVectorTileBasicLabelingStyle	Configuration of a single style within QgsVectorTileBasicLabeling
QgsVectorTileBasicRenderer	The default vector tile renderer implementation. It has an ordered list of “styles”, each defines a rendering rule.
QgsVectorTileBasicRendererStyle	Definition of map rendering of a subset of vector tile data. The subset of data is defined by:
QgsVectorTileLabeling	Base class for labeling configuration classes for vector tile layers.
QgsVectorTileLayer	Implements a map layer that is dedicated to rendering of vector tiles.
QgsVectorTileMatrixSet	Encapsulates properties of a vector tile matrix set, including tile origins and scaling information.
QgsVectorTileRenderer	Abstract base class for all vector tile renderer implementations.
QgsVectorTileRendererData	Contains decoded features of a single vector tile and any other data necessary for rendering of it.
QgsVectorTileUtils	Random utility functions for working with vector tiles
QgsVectorTileWriter	Takes care of writing vector tiles.
QgsVtpkTiles	Utility class for reading and writing ESRI VTPK files.