QBoxSet Class
The QBoxSet class represents one item in a box-and-whiskers chart. More...
Public Types
| enum | ValuePositions { LowerExtreme, LowerQuartile, Median, UpperQuartile, UpperExtreme } |
Properties
Public Functions
| QBrush | brush() const |
| QPen | pen() const |
| void | setBrush(const QBrush &brush) |
| void | setPen(const QPen &pen) |
Signals
| void | brushChanged() |
| void | penChanged() |
Detailed Description
A box-and-whiskers item is a graphical representation of a range and three median values that is constructed from five different values. There are two ways to specify the values. The first one is by using a constructor or stream operator (<<). The values have to be specified in the following order: lower extreme, lower quartile, median, upper quartile, and upper extreme.
The second way is to create an empty QBoxSet instance and specify the values using the setValue() method.
See the box-and-whiskers chart example to learn how to create a box-and-whiskers chart.
See also QBoxPlotSeries.
Member Type Documentation
enum QBoxSet::ValuePositions
This enum type defines the values of a box-and-whiskers item:
| Constant | Value | Description |
|---|---|---|
QBoxSet::LowerExtreme | 0 | The smallest value of the box-and-whiskers item. |
QBoxSet::LowerQuartile | 1 | The median value of the lower half of the box-and-whiskers item. |
QBoxSet::Median | 2 | The median value of the box-and-whiskers item. |
QBoxSet::UpperQuartile | 3 | The median value of the upper half of the box-and-whiskers item. |
QBoxSet::UpperExtreme | 4 | The largest value of the box-and-whiskers item. |
Property Documentation
brush : QBrush
This property holds the brush used fill the box of the box-and-whiskers item.
Access functions:
| QBrush | brush() const |
| void | setBrush(const QBrush &brush) |
Notifier signal:
| void | brushChanged() |
pen : QPen
This property holds the pen used to draw the lines of the box-and-whiskers item.
Access functions:
| QPen | pen() const |
| void | setPen(const QPen &pen) |
Notifier signal:
| void | penChanged() |