Abstract base class for a curve fitter. More...
#include <qwt_curve_fitter.h>
Public Types | |
| enum | Mode { Polygon, Path } |
| Preferred mode of the fitting algorithm. More... | |
Public Member Functions | |
| virtual QPolygonF | fitCurve (const QPolygonF &polygon) const =0 |
| virtual QPainterPath | fitCurvePath (const QPolygonF &polygon) const =0 |
| Mode | mode () const |
| virtual | ~QwtCurveFitter () |
| Destructor. | |
Protected Member Functions | |
| QwtCurveFitter (Mode mode) | |
Private Attributes | |
| const Mode | d_mode |
Detailed Description
Abstract base class for a curve fitter.
Definition at line 20 of file qwt_curve_fitter.h.
Member Enumeration Documentation
| enum QwtCurveFitter::Mode |
Preferred mode of the fitting algorithm.
Even if a QPainterPath can always be created from a QPolygonF the overhead of the conversion can be avoided by indicating the preference of the implementation to the application code.
- Enumerator:
Polygon The fitting algorithm creates a polygon - the implementation of fitCurvePath() simply wraps the polygon into a path.
- See also:
- QwtWeedingCurveFitter
Path The fitting algorithm creates a painter path - the implementation of fitCurve() extracts a polygon from the path.
- See also:
- QwtSplineCurveFitter
Definition at line 31 of file qwt_curve_fitter.h.
Constructor & Destructor Documentation
| QwtCurveFitter::~QwtCurveFitter | ( | ) | [virtual] |
Destructor.
Definition at line 22 of file qwt_curve_fitter.cpp.
| QwtCurveFitter::QwtCurveFitter | ( | Mode | mode | ) | [explicit, protected] |
Constructor
- Parameters:
-
mode Preferred fitting mode
Definition at line 16 of file qwt_curve_fitter.cpp.
Member Function Documentation
| virtual QPolygonF QwtCurveFitter::fitCurve | ( | const QPolygonF & | polygon | ) | const [pure virtual] |
Find a curve which has the best fit to a series of data points
- Parameters:
-
polygon Series of data points
- Returns:
- Curve points
- See also:
- fitCurvePath()
Implemented in QwtWeedingCurveFitter, and QwtSplineCurveFitter.
| virtual QPainterPath QwtCurveFitter::fitCurvePath | ( | const QPolygonF & | polygon | ) | const [pure virtual] |
Find a curve path which has the best fit to a series of data points
- Parameters:
-
polygon Series of data points
- Returns:
- Curve path
- See also:
- fitCurve()
Implemented in QwtWeedingCurveFitter, and QwtSplineCurveFitter.
| QwtCurveFitter::Mode QwtCurveFitter::mode | ( | ) | const |
- Returns:
- Preferred fitting mode
Definition at line 27 of file qwt_curve_fitter.cpp.
Member Data Documentation
const Mode QwtCurveFitter::d_mode [private] |
Definition at line 80 of file qwt_curve_fitter.h.
The documentation for this class was generated from the following files: