QBarDataItem Class

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

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

公共函數

QBarDataItem ()
QBarDataItem (float value )
QBarDataItem (float value , float angle )
float rotation () const
void setRotation (float angle )
void setValue (float val )
float value () const

詳細描述

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.

另請參閱 QBarDataProxy and Qt Graphs C++ Classes for 3D .

成員函數文檔編製

[constexpr noexcept] QBarDataItem:: QBarDataItem ()

Constructs a bar data item.

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

Constructs a bar data item with the value value .

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

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

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

Returns the rotation angle in degrees for this data item.

另請參閱 setRotation ().

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

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

另請參閱 rotation ().

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

Sets the value val to this data item.

另請參閱 value ().

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

Returns the value of this data item.

另請參閱 setValue ().