QHBoxPlotModelMapper#
The QHBoxPlotModelMapper
class is a horizontal model mapper for box plot series. More…
Synopsis#
Functions#
def
columnCount
()def
firstBoxSetRow
()def
firstColumn
()def
lastBoxSetRow
()def
setColumnCount
(rowCount)def
setFirstBoxSetRow
(firstBoxSetRow)def
setFirstColumn
(firstColumn)def
setLastBoxSetRow
(lastBoxSetRow)
Signals#
def
columnCountChanged
()def
firstBoxSetRowChanged
()def
firstColumnChanged
()def
lastBoxSetRowChanged
()def
modelReplaced
()def
seriesReplaced
()
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 data model and QBoxPlotSeries
object, so that each row in the data model defines a box-and-whiskers item and each column maps to the range and three median values of the box-and-whiskers item.
Both model and series properties can be used to manipulate the data. The model mapper keeps the series and the data model in sync.
The model mapper ensures that all the box-and-whiskers items in the box plot series have equal sizes. Therefore, adding or removing a value from a box-and-whiskers item causes the same change to be made in all the box-and-whiskers items in the box plot series.
See also
- class PySide6.QtCharts.QHBoxPlotModelMapper([parent=None])#
- Parameters
parent –
PySide6.QtCore.QObject
Constructs a mapper object that is a child of parent
.
- PySide6.QtCharts.QHBoxPlotModelMapper.columnCount()#
- Return type
int
This property holds The number of columns of the model that are mapped as the data for the box plot series..
The minimum and default value is -1 (number limited to the number of columns in the model).
- PySide6.QtCharts.QHBoxPlotModelMapper.columnCountChanged()#
This signal is emitted when the number of columns changes.
- PySide6.QtCharts.QHBoxPlotModelMapper.firstBoxSetRow()#
- Return type
int
This property holds The row of the model that is used as the data source for the first box-and-whiskers item..
The default value is -1 (invalid mapping).
- PySide6.QtCharts.QHBoxPlotModelMapper.firstBoxSetRowChanged()#
This signal is emitted when the first box-and-whiskers item row changes.
- PySide6.QtCharts.QHBoxPlotModelMapper.firstColumn()#
- Return type
int
This property holds The column of the model that contains the first values of the box-and-whiskers items in the box plot series..
The minimum and default value is 0.
- PySide6.QtCharts.QHBoxPlotModelMapper.firstColumnChanged()#
This signal is emitted when the first column changes.
- PySide6.QtCharts.QHBoxPlotModelMapper.lastBoxSetRow()#
- Return type
int
This property holds The row of the model that is used as the data source for the last box-and-whiskers item..
The default value is -1 (invalid mapping).
- PySide6.QtCharts.QHBoxPlotModelMapper.lastBoxSetRowChanged()#
This signal is emitted when the last box-and-whiskers item row changes.
- PySide6.QtCharts.QHBoxPlotModelMapper.modelReplaced()#
This signal is emitted when the model that the mapper is connected to changes.
- PySide6.QtCharts.QHBoxPlotModelMapper.seriesReplaced()#
This signal is emitted when the series that the mapper is connected to changes.
- PySide6.QtCharts.QHBoxPlotModelMapper.setColumnCount(rowCount)#
- Parameters
rowCount – int
This property holds The number of columns of the model that are mapped as the data for the box plot series..
The minimum and default value is -1 (number limited to the number of columns in the model).
- PySide6.QtCharts.QHBoxPlotModelMapper.setFirstBoxSetRow(firstBoxSetRow)#
- Parameters
firstBoxSetRow – int
This property holds The row of the model that is used as the data source for the first box-and-whiskers item..
The default value is -1 (invalid mapping).
- PySide6.QtCharts.QHBoxPlotModelMapper.setFirstColumn(firstColumn)#
- Parameters
firstColumn – int
This property holds The column of the model that contains the first values of the box-and-whiskers items in the box plot series..
The minimum and default value is 0.
- PySide6.QtCharts.QHBoxPlotModelMapper.setLastBoxSetRow(lastBoxSetRow)#
- Parameters
lastBoxSetRow – int
This property holds The row of the model that is used as the data source for the last box-and-whiskers item..
The default value is -1 (invalid mapping).