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/* $Id: TwoDLinearWCS.cc,v 1.5 2013-08-07 15:28:51 cgarcia Exp $
*
* This file is part of the VIMOS Pipeline
* Copyright (C) 2002-2012 European Southern Observatory
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* $Author: cgarcia $
* $Date: 2013-08-07 15:28:51 $
* $Revision: 1.5 $
* $Name: not supported by cvs2svn $
*/
#include <cmath>
#include "TwoDLinearWCS.h"
#include "vimoswcs.h"
#include "vimoswcscat.h"
TwoDLinearWCS::TwoDLinearWCS()
{
std::string proj = "TAN";
wcs_ = vimoswcsxinit(0.,0.,0.,0.,0.,0,0,0.,0,0.,
const_cast<char *>(proj.c_str()));
}
TwoDLinearWCS::TwoDLinearWCS
(const double& centralRA, const double& centralDEC, const double& plateScale,
const cpl_size& dimX, const cpl_size& dimY,
const double& rotAngle, bool flip,
const double& epoch, const int equinox)
{
std::string proj = "TAN";
wcs_ = vimoswcsxinit(centralRA, centralDEC, plateScale, dimX/2., dimY/2.,
dimX, dimY, rotAngle, equinox, epoch,
const_cast<char *>(proj.c_str()));
if(!flip) vimoswcsdeltset(wcs_, wcs_->cdelt[0],wcs_->cdelt[1],rotAngle);
else vimoswcsdeltset(wcs_,-wcs_->cdelt[0],wcs_->cdelt[1],rotAngle);
}
TwoDLinearWCS::~TwoDLinearWCS()
{
if(wcs_ != NULL)
vimoswcsfree(wcs_);
}
void TwoDLinearWCS::toWorld
(const double& xPixel, const double& yPixel, double& ra, double& dec) const
{
pix2vimoswcs(wcs_, xPixel, yPixel, &ra, &dec);
ra /= 15.;
}
bool TwoDLinearWCS::toPixel
(const double& ra, const double& dec, double& xPixel, double& yPixel) const
{
int off;
vimoswcs2pix(wcs_, ra * 15., dec, &xPixel, &yPixel, &off);
if(off) return false;
return true;
}
double TwoDLinearWCS::epoch() const
{
return (wcs_->epoch);
}
double TwoDLinearWCS::equinox() const
{
return (wcs_->equinox);
}
double TwoDLinearWCS::plateScale() const
{
double xPixSize=std::fabs(((*wcs_).xinc)*3600.);
double yPixSize=std::fabs(((*wcs_).yinc)*3600.);
return ((xPixSize + yPixSize) / 2.);
}
double TwoDLinearWCS::crpix1() const
{
return wcs_->crpix[0];
}
double TwoDLinearWCS::crpix2() const
{
return wcs_->crpix[1];
}
double TwoDLinearWCS::crval1() const
{
return wcs_->crval[0];
}
double TwoDLinearWCS::crval2() const
{
return wcs_->crval[1];
}
double TwoDLinearWCS::cdelt1() const
{
return wcs_->cdelt[0];
}
double TwoDLinearWCS::cdelt2() const
{
return wcs_->cdelt[1];
}
std::string TwoDLinearWCS::ctype1() const
{
return wcs_->ctype[0];
}
std::string TwoDLinearWCS::ctype2() const
{
return wcs_->ctype[1];
}
std::string TwoDLinearWCS::cunit1() const
{
return wcs_->units[0];
}
std::string TwoDLinearWCS::cunit2() const
{
return wcs_->units[1];
}
double * TwoDLinearWCS::cdMatrix() const
{
return wcs_->cd;
}
double TwoDLinearWCS::orientation() const
{
return wcs_->rot;
}
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