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Qwt User's Guide
6.1.4
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Interface for iterating over two QVector<double> objects. More...
#include <qwt_point_data.h>

Public Member Functions | |
| QwtPointArrayData (const QVector< double > &x, const QVector< double > &y) | |
| QwtPointArrayData (const double *x, const double *y, size_t size) | |
| virtual QRectF | boundingRect () const |
| Calculate the bounding rectangle. More... | |
| virtual size_t | size () const |
| virtual QPointF | sample (size_t index) const |
| const QVector< double > & | xData () const |
| const QVector< double > & | yData () const |
Public Member Functions inherited from QwtSeriesData< QPointF > | |
| QwtSeriesData () | |
| Constructor. | |
| virtual | ~QwtSeriesData () |
| Destructor. | |
| virtual void | setRectOfInterest (const QRectF &rect) |
Additional Inherited Members | |
Protected Attributes inherited from QwtSeriesData< QPointF > | |
| QRectF | d_boundingRect |
| Can be used to cache a calculated bounding rectangle. | |
Interface for iterating over two QVector<double> objects.
| QwtPointArrayData::QwtPointArrayData | ( | const QVector< double > & | x, |
| const QVector< double > & | y | ||
| ) |
Constructor
| x | Array of x values |
| y | Array of y values |
| QwtPointArrayData::QwtPointArrayData | ( | const double * | x, |
| const double * | y, | ||
| size_t | size | ||
| ) |
Constructor
| x | Array of x values |
| y | Array of y values |
| size | Size of the x and y arrays |
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virtual |
Calculate the bounding rectangle.
The bounding rectangle is calculated once by iterating over all points and is stored for all following requests.
Implements QwtSeriesData< QPointF >.
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virtual |
Return the sample at position i
| index | Index |
Implements QwtSeriesData< QPointF >.
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virtual |
Implements QwtSeriesData< QPointF >.
| const QVector< double > & QwtPointArrayData::xData | ( | ) | const |
| const QVector< double > & QwtPointArrayData::yData | ( | ) | const |