QOpcUaMultiDimensionalArray Class

A container class for multidimensional arrays. 更多...

头：	#include <QOpcUaMultiDimensionalArray>
CMake:	find_package(Qt6 REQUIRED COMPONENTS OpcUa) target_link_libraries(mytarget PRIVATE Qt6::OpcUa)
qmake:	QT += opcua

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公共函数

	QOpcUaMultiDimensionalArray ()
	QOpcUaMultiDimensionalArray (const QVariantList & value , const QList<quint32> & arrayDimensions )
	QOpcUaMultiDimensionalArray (const QList<quint32> & arrayDimensions )
	QOpcUaMultiDimensionalArray (const QOpcUaMultiDimensionalArray & other )
QList<quint32>	arrayDimensions () const
int	arrayIndex (const QList<quint32> & indices ) const
bool	isValid () const
void	setArrayDimensions (const QList<quint32> & arrayDimensions )
bool	setValue (const QList<quint32> & indices , const QVariant & value )
void	setValueArray (const QVariantList & value )
QVariant	value (const QList<quint32> & indices ) const
QVariantList	valueArray () const
QVariantList &	valueArrayRef ()
QVariant	operator QVariant () const
QOpcUaMultiDimensionalArray &	operator= (const QOpcUaMultiDimensionalArray & rhs )
bool	operator== (const QOpcUaMultiDimensionalArray & other ) const

详细描述

This class manages arrays of Qt OPC UA types with associated array dimensions information. It is returned as value when a multidimensional array is received from the server. It can also be used as a write value or as parameter for filters and method calls.

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QOpcUaMultiDimensionalArray:: QOpcUaMultiDimensionalArray ()

Default constructs a multi dimensional array with no parameters set.

QOpcUaMultiDimensionalArray:: QOpcUaMultiDimensionalArray (const QVariantList & value , const QList < quint32 > & arrayDimensions )

Constructs a multidimensional array with value value and array dimensions arrayDimensions .

QOpcUaMultiDimensionalArray:: QOpcUaMultiDimensionalArray (const QList < quint32 > & arrayDimensions )

Creates a multidimensional array with preallocated data fitting arrayDimensions .

QOpcUaMultiDimensionalArray:: QOpcUaMultiDimensionalArray (const QOpcUaMultiDimensionalArray & other )

Constructs a multidimensional array from other .

QList < quint32 > QOpcUaMultiDimensionalArray:: arrayDimensions () const

Returns the dimensions of the multidimensional array. The element at position n contains the length of the n-th dimension.

另请参阅 setArrayDimensions ().

int QOpcUaMultiDimensionalArray:: arrayIndex (const QList < quint32 > & indices ) const

Returns the array index in valueArray () of the element identified by indices 。若 indices is invalid for the array or if the array's dimensions don't match the size of valueArray (), the invalid index -1 被返回。

bool QOpcUaMultiDimensionalArray:: isValid () const

返回 true if the multidimensional array is valid

void QOpcUaMultiDimensionalArray:: setArrayDimensions (const QList < quint32 > & arrayDimensions )

Sets the dimensions of the multidimensional array to arrayDimensions .

另请参阅 arrayDimensions ().

bool QOpcUaMultiDimensionalArray:: setValue (const QList < quint32 > & indices , const QVariant & value )

Sets the value at position indices to value 。返回 true if the value has been successfully set.

另请参阅 value ().

void QOpcUaMultiDimensionalArray:: setValueArray (const QVariantList & value )

Sets the value array of the multidimensional array to value .

另请参阅 valueArray ().

QVariant QOpcUaMultiDimensionalArray:: value (const QList < quint32 > & indices ) const

Returns the value of the element identified by indices . If the indices are invalid for the array, an empty QVariant 被返回。

另请参阅 setValue ().

QVariantList QOpcUaMultiDimensionalArray:: valueArray () const

Returns the value array of the multidimensional array.

另请参阅 setValueArray ().

QVariantList &QOpcUaMultiDimensionalArray:: valueArrayRef ()

Returns a reference to the value array of the multidimensional array.

QVariant QOpcUaMultiDimensionalArray:: operator QVariant () const

Converts this multidimensional array to QVariant .

QOpcUaMultiDimensionalArray &QOpcUaMultiDimensionalArray:: operator= (const QOpcUaMultiDimensionalArray & rhs )

设置值从 rhs in the multidimensional array.

bool QOpcUaMultiDimensionalArray:: operator== (const QOpcUaMultiDimensionalArray & other ) const

返回 true if this multidimensional array has the same value as other .