QDateTimeAxis Class

The QDateTimeAxis adds support for DateTime values to be added to a graph's axis. More...

Header: #include <QDateTimeAxis>
CMake: find_package(Qt6 REQUIRED COMPONENTS Graphs)
target_link_libraries(mytarget PRIVATE Qt6::Graphs)
qmake: QT += graphs
In QML: DateTimeAxis
Inherits: QAbstractAxis

Properties

Public Functions

QString labelFormat() const
QDateTime max() const
QDateTime min() const
int minorTickCount() const
void setLabelFormat(QString format)
void setMax(QDateTime max)
void setMin(QDateTime min)
void setMinorTickCount(int newMinorTickCount)
void setTickInterval(qreal newTickInterval)
qreal tickInterval() const

Signals

void labelFormatChanged(QString format)
void maxChanged(QDateTime max)
void minChanged(QDateTime min)
void minorTickCountChanged()
void tickIntervalChanged()

Detailed Description

A DateTime Axis can be used to display DateTime representations with tick marks and grid lines. The DateTime items on the axis are displayed at the position of the ticks.

Property Documentation

labelFormat : QString

This property holds the format of the DateTime labels on the axis. The format property allows to signify the visual representation of the DateTime object, in days, months, and years. The default value is dd-MMMM-yy.

Access functions:

QString labelFormat() const
void setLabelFormat(QString format)

Notifier signal:

void labelFormatChanged(QString format)

max : QDateTime

This property holds the maximum value on the axis

This value can be lower or higher than the minimum. The default value is new Date(1980,1,1)

Access functions:

QDateTime max() const
void setMax(QDateTime max)

Notifier signal:

void maxChanged(QDateTime max)

min : QDateTime

This property holds the minimum value on the axis

This value can be lower or higher than the maximum. The default value is new Date(1970,1,1)

Access functions:

QDateTime min() const
void setMin(QDateTime min)

Notifier signal:

void minChanged(QDateTime min)

minorTickCount : int

This property holds the number of minor tick marks on the axis. This indicates how many grid lines are drawn between major ticks on the graph. Labels are not drawn for minor ticks. The default value is 0.

Access functions:

int minorTickCount() const
void setMinorTickCount(int newMinorTickCount)

Notifier signal:

void minorTickCountChanged()

tickInterval : qreal

This property holds the interval between dynamically placed tick marks and labels. The default value is 0, which means that intervals are automatically calculated based on the min and max range.

Access functions:

qreal tickInterval() const
void setTickInterval(qreal newTickInterval)

Notifier signal:

void tickIntervalChanged()

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