QHXYModelMapper

The QHXYModelMapper class is a horizontal model mapper for line, spline, and scatter series. More…

Synopsis

Functions

• def columnCount ()

• def firstColumn ()

• def setColumnCount (columnCount)

• def setFirstColumn (firstColumn)

• def setXRow (xRow)

• def setYRow (yRow)

• def xRow ()

• def yRow ()

Signals

• def columnCountChanged ()

• def firstColumnChanged ()

• def modelReplaced ()

• def seriesReplaced ()

• def xRowChanged ()

• def yRowChanged ()

Detailed Description

Model mappers enable using a data model derived from the QAbstractItemModel class as a data source for a chart. A horizontal model mapper is used to create a connection between a line, spline, or scatter series and the data model that has X and Y rows for the coordinates and holds the data points for the XYSeries as columns. A TableModel is a natural choice for the model.

Both model and series properties can be used to manipulate the data. The model mapper keeps the series and the data model in sync.

See also

QVXYModelMapper QXYSeries Model Data Example

class PySide6.QtCharts.QHXYModelMapper([parent=None])

Parameters

parent – PySide6.QtCore.QObject

Constructs a mapper object that is a child of parent.

PySide6.QtCharts.QHXYModelMapper.columnCount()

Return type

int

This property holds The number of columns of the model that are mapped as the data for series..

The minimum and default value is -1 (the number is limited by the number of columns in the model).

PySide6.QtCharts.QHXYModelMapper.columnCountChanged()

PySide6.QtCharts.QHXYModelMapper.firstColumn()

Return type

int

This property holds The column of the model that contains the data for the first point of the series..

The minimum and default value is 0.

PySide6.QtCharts.QHXYModelMapper.firstColumnChanged()

PySide6.QtCharts.QHXYModelMapper.modelReplaced()

PySide6.QtCharts.QHXYModelMapper.seriesReplaced()

PySide6.QtCharts.QHXYModelMapper.setColumnCount(columnCount)

Parameters

columnCount – int

This property holds The number of columns of the model that are mapped as the data for series..

The minimum and default value is -1 (the number is limited by the number of columns in the model).

PySide6.QtCharts.QHXYModelMapper.setFirstColumn(firstColumn)

Parameters

firstColumn – int

This property holds The column of the model that contains the data for the first point of the series..

The minimum and default value is 0.

PySide6.QtCharts.QHXYModelMapper.setXRow(xRow)

Parameters

xRow – int

This property holds The row of the model that contains the x-coordinates of the data points..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHXYModelMapper.setYRow(yRow)

Parameters

yRow – int

This property holds The row of the model that contains the y-coordinates of the data points..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHXYModelMapper.xRow()

Return type

int

This property holds The row of the model that contains the x-coordinates of the data points..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHXYModelMapper.xRowChanged()

PySide6.QtCharts.QHXYModelMapper.yRow()

Return type

int

This property holds The row of the model that contains the y-coordinates of the data points..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHXYModelMapper.yRowChanged()