CanvasCurve.h

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//# Copyright (C) 2005
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//#        Internet email: aips2-request@nrao.edu.
//#        Postal address: AIPS++ Project Office
//#                        National Radio Astronomy Observatory
//#                        520 Edgemont Road
//#                        Charlottesville, VA 22903-2475 USA
//#
#ifndef CANVASCURVE_H_
#define CANVASCURVE_H_

#include <casa/aips.h>
#include <casa/Arrays/Vector.h>
#include <coordinates/Coordinates/SpectralCoordinate.h>
#include <vector>
#include <utility>                      /***for std::pair***/
#include <QColor>
#include <QString>

namespace casa {

        typedef std::vector<double> CurveData;
        typedef std::vector<double> ErrorData;

        class CanvasCurve {
        public:
                CanvasCurve();
                CanvasCurve( CurveData curveData, ErrorData errorData,
                             QString legend, QColor curveColor, int curveType,
                             double beamAngle, double beamArea, casacore::SpectralCoordinate coord);
                QColor getColor() const;
                void setColor( QColor color );
                QString getLegend() const;
                void setLegend( const QString& legend );
                int getCurveType() const;
                CurveData getCurveData();
                casacore::Vector<float> getXValues() const;
                casacore::Vector<float> getYValues() const;
                CurveData getErrorData();


                QString getToolTip( double x, double y , const QString& xUnit, const QString& yUnit ) const;
                void getMinMax(casacore::Double& xmin, casacore::Double& xmax, casacore::Double& ymin,
                               casacore::Double& ymax, bool plotError ) const;
                std::pair<double,double> getRangeFor(double xMin, double xMax, casacore::Bool& exists );
                void scaleYValues( const QString& oldDisplayUnits, const QString& yUnitDisplay, const QString& xUnits );
                double convertValue( double value, double freqValue, const QString& oldDisplayUnits, const QString& yUnitDisplay,
                                const QString& xUnits, casacore::SpectralCoordinate& coord);
                virtual ~CanvasCurve();

        private:
                casacore::Vector<float> getErrorValues() const;
                double getMaxY() const;
                double getMaxError() const;
                void storeData( const QString& oldUnits );
                void setYValues( const casacore::Vector<float>& yValues );
                void setErrorValues( const casacore::Vector<float>& errorValues );
                double calculateRelativeError( double minValue, double maxValue ) const ;
                void calculateRelativeErrors( double& errorX, double& errorY ) const;
                QColor curveColor;
                QString legend;
                CurveData curveData;
                ErrorData errorData;
                QString maxUnits;
                double maxValue;
                double maxErrorValue;
                double beamAngle;
                double beamArea;
                int curveType;
                casacore::SpectralCoordinate spectralCoordinate;

        };

} /* namespace casa */
#endif /* CANVASCURVE_H_ */