QGIS core library

Contains all basic GIS functionality. More...

Classes
class	QGis
	The QGis class provides global constants for use throughout the application. More...
class	QgsApplication
	Extends QApplication to provide access to QGIS specific resources such as theme paths, database paths etc. More...
class	QgsAction
	Utility class that encapsulates an action based on vector attributes. More...
class	QgsClipper
	A class to trim lines and polygons to within a rectangular region. More...
class	QgsContextHelp
	Provides a context based help browser for a dialog. More...
class	QgsCoordinateReferenceSystem
	Class for storing a coordinate reference system (CRS) More...
class	QgsCoordinateTransform
	Class for doing transforms between two map coordinate systems. More...
class	QgsCredentials
	Interface for requesting credentials in QGIS in GUI independent way. More...
class	QgsCsException
	Custom exception class for Coordinate Reference System related exceptions. More...
class	QgsDataProvider
	Abstract base class for spatial data provider implementations. More...
class	QgsDataSourceURI
	Class for storing the component parts of a PostgreSQL/RDBMS datasource URI. More...
class	QgsDistanceArea
	General purpose distance and area calculator. More...
class	QgsException
	Defines a qgis exception class. More...
class	QgsFeature
	The feature class encapsulates a single feature including its id, geometry and a list of field/values attributes. More...
class	QgsField
	Encapsulate a field in an attribute table or data source. More...
class	QgsGeometry
	A geometry is the spatial representation of a feature. More...
class	QgsHttpTransaction
	HTTP request/response manager that is redirect-aware. More...
class	QgsLabel
	A class to render labels. More...
class	QgsLabelAttributes
	A class to store attributes needed for label rendering. More...
class	QgsLogger
	QgsLogger is a class to print debug/warning/error messages to the console. More...
class	QgsMapLayer
	Base class for all map layer types. More...
class	QgsMapLayerRegistry
	This class tracks map layers that are currently loaded and provides a means to fetch a pointer to a map layer and delete it. More...
class	QgsMapRenderer
	A non GUI class for rendering a map layer set onto a QPainter. More...
class	QgsMapToPixel
	Perform transforms between map coordinates and device coordinates. More...
class	QgsMessageOutput
	Interface for showing messages from QGIS in GUI independent way. More...
class	QgsPluginLayer
	Base class for plugin layers. More...
class	QgsPluginLayerType
	class for creating plugin specific layers More...
class	QgsPluginLayerRegistry
	a registry of plugin layers types More...
class	QgsVector
	A class to represent a vector. More...
class	QgsPoint
	A class to represent a point geometry. More...
class	QgsProject
	Reads and writes project states. More...
class	QgsProjectFileTransform
	Class to convert from older project file versions to newer. More...
class	QgsProperty
	An Abstract Base Class for QGIS project property hierarchies. More...
class	QgsProjectVersion
	A class to describe the version of a project. More...
class	QgsProviderCountCalcEvent
	A custom event that is designed to be fired when a layer count has been fully calculated. More...
class	QgsProviderExtentCalcEvent
	A custom event that is designed to be fired when a layer extent has been fully calculated. More...
class	QgsProviderMetadata
	Holds data provider key, description, and associated shared library file information. More...
class	QgsProviderRegistry
	A registry / canonical manager of data providers. More...
class	QgsRasterDataProvider
	Base class for raster data providers. More...
class	QgsRectangle
	A rectangle specified with double values. More...
class	QgsRenderContext
	Contains information about the context of a rendering operation. More...
class	QgsRunProcess
	A class that executes an external program/script. More...
class	QgsScaleCalculator
	Calculates scale for a given combination of canvas size, map extent, and monitor dpi. More...
class	QgsSearchString
	A class to represent a search string. More...
class	QgsSearchTreeNode
	A representation of a node in a search tree. More...
struct	QgsSnappingResult
	Represents the result of a snapping operation. More...
class	QgsTolerance
	This is the class is providing tolerance value in map unit values. More...
class	QgsVectorDataProvider
	This is the base class for vector data providers. More...
class	QgsVectorFileWriter
	A convenience class for writing vector files to disk. More...
class	QgsVectorLayer
	Vector layer backed by a data source provider. More...
class	QgsClipToMinMaxEnhancement
	A raster contrast enhancement that will clip a value to the specified min/max range. More...
class	QgsColorRampShader
	A ramp shader will color a raster pixel based on a list of values ranges in a ramp. More...
class	QgsContrastEnhancement
	Manipulates raster pixel values so that they enhanceContrast or clip into a specified numerical range according to the specified ContrastEnhancementAlgorithm. More...
class	QgsContrastEnhancementFunction
	A contrast enhancement funcion is the base class for all raster contrast enhancements. More...
class	QgsFreakOutShader
	A colorful false color shader that will frighten your granny and make your dogs howl. More...
class	QgsLinearMinMaxEnhancement
	A color enhancement function that performs a linear enhanceContrast between min and max. More...
class	QgsLinearMinMaxEnhancementWithClip
	A linear enhanceContrast enhancement that first clips to min max and then enhanceContrastes linearly between min and max. More...
class	QgsPseudoColorShader
	A raster color shader that highlighs low values in blue and high values in red. More...
class	QgsRasterBandStats
	The RasterBandStats struct is a container for statistics about a single raster band. More...
class	QgsRasterLayer
	This class provides qgis with the ability to render raster datasets onto the mapcanvas. More...
class	QgsRasterPyramid
	This struct is used to store pyramid info for the raster layer. More...
class	QgsRasterShader
	Interface for all raster shaders. More...
class	QgsRasterShaderFunction
	The raster shade function applies a shader to a pixel at render time - typically used to render grayscale images as false color. More...
class	QgsRasterTransparency
	Defines the list of pixel values to be considered as transparent or semi transparent when rendering rasters. More...
struct	QgsRasterViewPort
	This class provides details of the viewable area that a raster will be rendered into. More...

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Detailed Description

Contains all basic GIS functionality.