GWcs.hpp
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/***************************************************************************
* GWcs.hpp - World Coordinate System virtual base class *
* ----------------------------------------------------------------------- *
* copyright (C) 2010-2012 by Juergen Knoedlseder *
* ----------------------------------------------------------------------- *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
***************************************************************************/
/**
* @file GWcs.hpp
* @brief World Coordinate System virtual base class definition
* @author Juergen Knoedlseder
*/
#ifndef GWCS_HPP
#define GWCS_HPP
/* __ Includes ___________________________________________________________ */
#include <string>
#include "GBase.hpp"
#include "GFitsHDU.hpp"
#include "GSkyDir.hpp"
#include "GSkyPixel.hpp"
/***********************************************************************//**
* @class GWcs
*
* @brief GWcs virtual base class interface defintion
***************************************************************************/
class GWcs : public GBase {
// Operator friends
friend bool operator== (const GWcs &a, const GWcs &b);
friend bool operator!= (const GWcs &a, const GWcs &b);
public:
// Constructors and destructors
GWcs(void);
GWcs(const GWcs& wcs);
virtual ~GWcs(void);
// Operators
virtual GWcs& operator= (const GWcs& wcs);
// Pure virtual methods (not implemented)
virtual void clear(void) = 0;
virtual GWcs* clone(void) const = 0;
virtual std::string code(void) const = 0;
virtual std::string name(void) const = 0;
virtual void read(const GFitsHDU* hdu) = 0;
virtual void write(GFitsHDU* hdu) const = 0;
virtual double omega(const int& pix) const = 0;
virtual double omega(const GSkyPixel& pix) const = 0;
virtual GSkyDir pix2dir(const int& pix) const = 0;
virtual int dir2pix(const GSkyDir& dir) const = 0;
virtual GSkyDir xy2dir(const GSkyPixel& pix) const = 0;
virtual GSkyPixel dir2xy(const GSkyDir& dir) const = 0;
virtual std::string print(void) const = 0;
// Virtual methods
virtual std::string coordsys(void) const;
virtual void coordsys(const std::string& coordsys);
protected:
// Protected methods
void init_members(void);
void copy_members(const GWcs& wcs);
void free_members(void);
virtual bool compare(const GWcs& wcs) const = 0;
// Protected members
int m_coordsys; //!< 0=celestial, 1=galactic, 2=ecl, 3=hel, 4=sgl
};
#endif /* GWCS_HPP */