QVXYModelMapper Class

The QVXYModelMapper class is a vertical model mapper for line, spline, and scatter series. More...

Header:	#include <QVXYModelMapper>
Instantiated By:	VXYModelMapper
Inherits:	QXYModelMapper

• List of all members, including inherited members

Properties

firstRow : int model : QAbstractItemModel* rowCount : int

series : QtCharts::QXYSeries* xColumn : int yColumn : int

Public Functions

	QVXYModelMapper(QObject *parent = nullptr)
int	firstRow() const
QAbstractItemModel *	model() const
int	rowCount() const
QXYSeries *	series() const
void	setFirstRow(int firstRow)
void	setModel(QAbstractItemModel *model)
void	setRowCount(int rowCount)
void	setSeries(QXYSeries *series)
void	setXColumn(int xColumn)
void	setYColumn(int yColumn)
int	xColumn() const
int	yColumn() const

Signals

void	firstRowChanged()
void	modelReplaced()
void	rowCountChanged()
void	seriesReplaced()
void	xColumnChanged()
void	yColumnChanged()

Detailed Description

Model mappers enable using a data model derived from the QAbstractItemModel class as a data source for a chart. A vertical model mapper is used to create a connection between a line, spline, or scatter series and the data model that holds the consecutive data point coordinates in columns.

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 QHXYModelMapper and QXYSeries.

Member Function Documentation

QVXYModelMapper::QVXYModelMapper(QObject *parent = nullptr)

Constructs a mapper object that is a child of parent.

[signal] void QVXYModelMapper::firstRowChanged()

This signal is emitted when the first row changes.

Note: Notifier signal for property firstRow.

[signal] void QVXYModelMapper::modelReplaced()

This signal is emitted when the model that the mapper is connected to changes.

Note: Notifier signal for property model.

[signal] void QVXYModelMapper::rowCountChanged()

This signal is emitted when the number of rows changes.

Note: Notifier signal for property rowCount.

[signal] void QVXYModelMapper::seriesReplaced()

This signal is emitted when the series that the mapper is connected to changes.

Note: Notifier signal for property series.

[signal] void QVXYModelMapper::xColumnChanged()

This signal is emitted when the column that contains the x-coordinates of data points changes.

Note: Notifier signal for property xColumn.

[signal] void QVXYModelMapper::yColumnChanged()

This signal is emitted when the column that contains the y-coordinates of data points changes.

Note: Notifier signal for property yColumn.