Classes, derived from QwtData may:
Definition at line 39 of file qwt_data.h.
Public Member Functions | |
virtual QwtData * | copy () const =0 |
virtual size_t | size () const =0 |
virtual double | x (size_t i) const =0 |
virtual double | y (size_t i) const =0 |
virtual QwtDoubleRect | boundingRect () const |
Protected Member Functions | |
QwtData & | operator= (const QwtData &) |
|
Returns the bounding rectangle of the data. If there is no bounding rect, like for empty data the rectangle is invalid: QwtDoubleRect::isValid() == false
Reimplemented in QwtArrayData, and QwtCPointerData. Definition at line 32 of file qwt_data.cpp. References size(), x(), and y(). Referenced by QwtPlotCurve::boundingRect(). |
|
Return a pointer to a copy (virtual copy constructor) Implemented in QwtDoublePointData, QwtArrayData, and QwtCPointerData. Referenced by QwtPlotCurve::copy(), and QwtPlotCurve::setData(). |
|
Assignment operator (virtualized) |
|
Return the size of the data set Implemented in QwtDoublePointData, QwtArrayData, and QwtCPointerData. Referenced by boundingRect(), and QwtPlotCurve::dataSize(). |
|
Return the x value of data point i
Implemented in QwtDoublePointData, QwtArrayData, and QwtCPointerData. Referenced by boundingRect(), and QwtPlotCurve::x(). |
|
Return the y value of data point i
Implemented in QwtDoublePointData, QwtArrayData, and QwtCPointerData. Referenced by boundingRect(), and QwtPlotCurve::y(). |