qwt_matrix_raster_data.h
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_MATRIX_RASTER_DATA_H
#define QWT_MATRIX_RASTER_DATA_H 1
#include "qwt_global.h"
#include "qwt_raster_data.h"
#include <qvector.h>
class QWT_EXPORT QwtMatrixRasterData: public QwtRasterData
{
public:
enum ResampleMode
{
NearestNeighbour,
BilinearInterpolation
};
QwtMatrixRasterData();
virtual ~QwtMatrixRasterData();
void setResampleMode(ResampleMode mode);
ResampleMode resampleMode() const;
virtual void setInterval( Qt::Axis, const QwtInterval & );
void setValueMatrix( const QVector<double> &values, int numColumns );
const QVector<double> valueMatrix() const;
void setValue( int row, int col, double value );
int numColumns() const;
int numRows() const;
virtual QRectF pixelHint( const QRectF & ) const;
virtual double value( double x, double y ) const;
private:
void update();
class PrivateData;
PrivateData *d_data;
};
#endif
QwtRasterData
QwtRasterData defines an interface to any type of raster data.
Definition: qwt_raster_data.h:32
QwtRasterData::setInterval
virtual void setInterval(Qt::Axis, const QwtInterval &)
Definition: qwt_raster_data.cpp:176
QwtMatrixRasterData::ResampleMode
ResampleMode
Resampling algorithm The default setting is NearestNeighbour;.
Definition: qwt_matrix_raster_data.h:32
QwtRasterData::pixelHint
virtual QRectF pixelHint(const QRectF &) const
Pixel hint.
Definition: qwt_raster_data.cpp:242
QwtMatrixRasterData
A class representing a matrix of values as raster data.
Definition: qwt_matrix_raster_data.h:25
QwtRasterData::value
virtual double value(double x, double y) const =0
QwtInterval
A class representing an interval.
Definition: qwt_interval.h:26
QwtMatrixRasterData::NearestNeighbour
Definition: qwt_matrix_raster_data.h:38