QwtCPointerData - Man Page

Data class containing two pointers to memory blocks of T.

Synopsis

#include <qwt_point_data.h>

Inherits QwtPointSeriesData.

Public Member Functions

QwtCPointerData (const T *x, const T *y, size_t size)
virtual size_t size () const override
virtual QPointF sample (size_t index) const override
const T * xData () const
const T * yData () const

Additional Inherited Members

Detailed Description

template<typename T>

class QwtCPointerData< T >" Data class containing two pointers to memory blocks of T.

Definition at line 43 of file qwt_point_data.h.

Constructor & Destructor Documentation

template<typename T > QwtCPointerData< T >::QwtCPointerData (const T * x, const T * y, size_t size)

Constructor

Parameters

x Array of x values
y Array of y values
size Size of the x and y arrays

Warning

The programmer must assure that the memory blocks referenced by the pointers remain valid during the lifetime of the QwtPlotCPointer object.

See also

QwtPlotCurve::setData(), QwtPlotCurve::setRawSamples()

Definition at line 326 of file qwt_point_data.h.

Member Function Documentation

template<typename T > QPointF QwtCPointerData< T >::sample (size_t index) const [override], [virtual]

Return the sample at position i

Parameters

index Index

Returns

Sample at position i

Reimplemented from QwtArraySeriesData< QPointF >.

Definition at line 347 of file qwt_point_data.h.

template<typename T > size_t QwtCPointerData< T >::size [override], [virtual]

Returns

Size of the data set

Reimplemented from QwtArraySeriesData< QPointF >.

Definition at line 335 of file qwt_point_data.h.

template<typename T > const T * QwtCPointerData< T >::xData

Returns

Array of the x-values

Definition at line 354 of file qwt_point_data.h.

template<typename T > const T * QwtCPointerData< T >::yData

Returns

Array of the y-values

Definition at line 361 of file qwt_point_data.h.

Author

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Info

Sun Jul 18 2021 Version 6.2.0 Qwt User's Guide