QHXYModelMapper#
The QHXYModelMapper
class is a horizontal model mapper for line, spline, and scatter series. More…
Synopsis#
Properties#
columnCount
- Number of columns of the model that are mapped as the data for seriesfirstColumn
- Column of the model that contains the data for the first point of the seriesmodel
- That is used by the mapperseries
- That is used by the mapperxRow
- Row of the model that contains the x-coordinates of the data pointsyRow
- Row of the model that contains the y-coordinates of the data points
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
()
Note
This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE
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
Charts with Widgets Gallery
- class PySide6.QtCharts.QHXYModelMapper([parent=None])#
- Parameters:
parent –
PySide6.QtCore.QObject
Constructs a mapper object that is a child of parent
.
Note
Properties can be used directly when from __feature__ import true_property
is used or via accessor functions otherwise.
- property PᅟySide6.QtCharts.QHXYModelMapper.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).
- Access functions:
columnCount
()setColumnCount
(columnCount)Signal
columnCountChanged
()
- property PᅟySide6.QtCharts.QHXYModelMapper.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.
- Access functions:
firstColumn
()setFirstColumn
(firstColumn)Signal
firstColumnChanged
()
- property PᅟySide6.QtCharts.QHXYModelMapper.model: PySide6.QtCore.QAbstractItemModel#
This property holds The model that is used by the mapper..
- Access functions:
Signal
modelReplaced
()
- property PᅟySide6.QtCharts.QHXYModelMapper.series: PySide6.QtCharts.QXYSeries#
This property holds The series that is used by the mapper..
All the data in the series is discarded when it is set to the mapper. When a new series is specified, the old series is disconnected (but it preserves its data).
- Access functions:
Signal
seriesReplaced
()
- property PᅟySide6.QtCharts.QHXYModelMapper.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).
- Access functions:
xRow
()setXRow
(xRow)Signal
xRowChanged
()
- property PᅟySide6.QtCharts.QHXYModelMapper.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).
- Access functions:
yRow
()setYRow
(yRow)Signal
yRowChanged
()
- PySide6.QtCharts.QHXYModelMapper.columnCount()#
- Return type:
int
See also
Getter of property columnCount
.
- PySide6.QtCharts.QHXYModelMapper.columnCountChanged()#
This signal is emitted when the number of columns changes.
Notification signal of property columnCount
.
- PySide6.QtCharts.QHXYModelMapper.firstColumn()#
- Return type:
int
See also
Getter of property firstColumn
.
- PySide6.QtCharts.QHXYModelMapper.firstColumnChanged()#
This signal is emitted when the first column changes.
Notification signal of property firstColumn
.
- PySide6.QtCharts.QHXYModelMapper.modelReplaced()#
This signal is emitted when the model that the mapper is connected to changes.
Notification signal of property model
.
- PySide6.QtCharts.QHXYModelMapper.seriesReplaced()#
This signal is emitted when the series that the mapper is connected to changes.
Notification signal of property series
.
- PySide6.QtCharts.QHXYModelMapper.setColumnCount(columnCount)#
- Parameters:
columnCount – int
See also
Setter of property columnCount
.
- PySide6.QtCharts.QHXYModelMapper.setFirstColumn(firstColumn)#
- Parameters:
firstColumn – int
See also
Setter of property firstColumn
.
Setter of property xRow
.
Setter of property yRow
.
Getter of property xRow
.
- PySide6.QtCharts.QHXYModelMapper.xRowChanged()#
This signal is emitted when the row that contains the x-coordinates of data points changes.
Notification signal of property xRow
.
Getter of property yRow
.
- PySide6.QtCharts.QHXYModelMapper.yRowChanged()#
This signal is emitted when the row that contains the y-coordinates of data points changes.
Notification signal of property yRow
.