QwtCPointerValueData - Man Page
Data class containing a pointer to memory of y coordinates.
Synopsis
#include <qwt_point_data.h>
Inherits QwtPointSeriesData.
Public Member Functions
QwtCPointerValueData (const T *y, size_t size)
virtual size_t size () const override
virtual QPointF sample (size_t index) const override
const T * yData () const
Additional Inherited Members
Detailed Description
template<typename T>
class QwtCPointerValueData< T >" Data class containing a pointer to memory of y coordinates.
The memory contains the y coordinates, while the index is interpreted as x coordinate.
Definition at line 89 of file qwt_point_data.h.
Constructor & Destructor Documentation
template<typename T > QwtCPointerValueData< T >::QwtCPointerValueData (const T * y, size_t size)
Constructor
- Parameters
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 QwtCPointerValueData object.
- See also
QwtPlotCurve::setData(), QwtPlotCurve::setRawSamples()
Definition at line 380 of file qwt_point_data.h.
Member Function Documentation
template<typename T > QPointF QwtCPointerValueData< 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 400 of file qwt_point_data.h.
template<typename T > size_t QwtCPointerValueData< T >::size [override], [virtual]
- Returns
Size of the data set
Reimplemented from QwtArraySeriesData< QPointF >.
Definition at line 388 of file qwt_point_data.h.
template<typename T > const T * QwtCPointerValueData< T >::yData
- Returns
Array of the y-values
Definition at line 407 of file qwt_point_data.h.
Author
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