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()¶
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