QBarDataItem Class

The QBarDataItem class provides a container for resolved data to be added to bar graphs. 更多...

头：	#include <QBarDataItem>
CMake:	find_package(Qt6 REQUIRED COMPONENTS Graphs) target_link_libraries(mytarget PRIVATE Qt6::Graphs)
qmake:	QT += graphs
Status:	Technical Preview

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公共函数

	QBarDataItem ()
	QBarDataItem (float value )
	QBarDataItem (float value , float angle )
	QBarDataItem (const QBarDataItem & other )
	~QBarDataItem ()
float	rotation () const
void	setRotation (float angle )
void	setValue (float val )
float	value () const
QBarDataItem &	operator= (const QBarDataItem & other )

详细描述

A bar data item holds the data for a single rendered bar in a graph. Bar data proxies parse data into QBarDataItem instances for bar graphs.

另请参阅 QBarDataProxy and Qt Graphs C++ 类 .

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[constexpr noexcept] QBarDataItem:: QBarDataItem ()

Constructs a bar data item.

[constexpr noexcept] QBarDataItem:: QBarDataItem ( float value )

Constructs a bar data item with the value value .

[constexpr noexcept] QBarDataItem:: QBarDataItem ( float value , float angle )

Constructs a bar data item with the value value and angle angle .

QBarDataItem:: QBarDataItem (const QBarDataItem & other )

构造副本为 other .

[noexcept] QBarDataItem:: ~QBarDataItem ()

Deletes a bar data item.

[constexpr noexcept] float QBarDataItem:: rotation () const

Returns the rotation angle in degrees for this data item.

另请参阅 setRotation ().

[constexpr noexcept] void QBarDataItem:: setRotation ( float angle )

Sets the rotation angle angle in degrees for this data item.

另请参阅 rotation ().

[constexpr noexcept] void QBarDataItem:: setValue ( float val )

Sets the value val to this data item.

另请参阅 value ().

[constexpr noexcept] float QBarDataItem:: value () const

Returns the value of this data item.

另请参阅 setValue ().

QBarDataItem &QBarDataItem:: operator= (const QBarDataItem & other )

赋值副本为 other 到此对象。

内容

• 公共函数

• 详细描述