Class: QgsGraduatedHistogramWidget

Graphical histogram for displaying distribution of field values and editing range breaks for a QgsGraduatedSymbolRenderer renderer.

QgsGraduatedHistogramWidget showing a normally distributed histogram

Class Hierarchy

Base classes

QgsHistogramWidget	Graphical histogram for displaying distributions of field values.
QWidget
QObject
QPaintDevice

class qgis.gui.QgsGraduatedHistogramWidget

Bases: QgsHistogramWidget

__init__(parent: QWidget | None = None)

QgsGraduatedHistogramWidget constructor

Parameters:

parent (Optional[QWidget] = None) – parent widget

signal rangesModified

pyqtSignal(*types, name: str = …, revision: int = …, arguments: Sequence = …) -> PYQT_SIGNAL

types is normally a sequence of individual types. Each type is either a type object or a string that is the name of a C++ type. Alternatively each type could itself be a sequence of types each describing a different overloaded signal. name is the optional C++ name of the signal. If it is not specified then the name of the class attribute that is bound to the signal is used. revision is the optional revision of the signal that is exported to QML. If it is not specified then 0 is used. arguments is the optional sequence of the names of the signal’s arguments.

setRenderer(self, renderer: QgsGraduatedSymbolRenderer | None)

Sets the QgsGraduatedSymbolRenderer renderer associated with the histogram. The histogram will fetch the ranges from the renderer before every refresh.

Parameters:

renderer (Optional[QgsGraduatedSymbolRenderer]) – associated QgsGraduatedSymbolRenderer