173 lines
7.8 KiB
C++
173 lines
7.8 KiB
C++
// ____ ______ __
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// / __ \ / ____// /
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// / /_/ // / / /
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// / ____// /___ / /___ PixInsight Class Library
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// /_/ \____//_____/ PCL 2.4.23
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// ----------------------------------------------------------------------------
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// pcl/WCSKeywords.h - Released 2022-03-12T18:59:29Z
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// ----------------------------------------------------------------------------
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// This file is part of the PixInsight Class Library (PCL).
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// PCL is a multiplatform C++ framework for development of PixInsight modules.
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//
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// Copyright (c) 2003-2022 Pleiades Astrophoto S.L. All Rights Reserved.
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//
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// Redistribution and use in both source and binary forms, with or without
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// modification, is permitted provided that the following conditions are met:
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//
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// 1. All redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. All redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the names "PixInsight" and "Pleiades Astrophoto", nor the names
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// of their contributors, may be used to endorse or promote products derived
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// from this software without specific prior written permission. For written
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// permission, please contact info@pixinsight.com.
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//
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// 4. All products derived from this software, in any form whatsoever, must
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// reproduce the following acknowledgment in the end-user documentation
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// and/or other materials provided with the product:
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//
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// "This product is based on software from the PixInsight project, developed
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// by Pleiades Astrophoto and its contributors (https://pixinsight.com/)."
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//
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// Alternatively, if that is where third-party acknowledgments normally
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// appear, this acknowledgment must be reproduced in the product itself.
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//
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// THIS SOFTWARE IS PROVIDED BY PLEIADES ASTROPHOTO AND ITS CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PLEIADES ASTROPHOTO OR ITS
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, BUSINESS
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// INTERRUPTION; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; AND LOSS OF USE,
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// DATA OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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// ----------------------------------------------------------------------------
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#ifndef __PCL_WCSKeywords_h
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#define __PCL_WCSKeywords_h
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/// \file pcl/WCSKeywords.h
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#include <pcl/Defs.h>
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#include <pcl/FITSHeaderKeyword.h>
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#include <pcl/Optional.h>
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#include <pcl/Property.h>
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#include <pcl/String.h>
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/*
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* Based on original work contributed by Andrés del Pozo.
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*/
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namespace pcl
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{
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// ----------------------------------------------------------------------------
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class LinearTransformation;
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/*!
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* \class WCSKeywords
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* \brief A structure for management of WCS FITS header keywords and associated
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* image properties.
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*
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* \b References
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*
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* M. R. Calabretta, E. W. Greisen (2002) <em>Representations of World
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* Coordinates in FITS</em>, Astronomy & Astrophysics, 395, 1061-1075,
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* 1077-1122.
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*
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* \ingroup astrometry_support
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*/
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class PCL_CLASS WCSKeywords
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{
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public:
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Optional<double> objctra; //!< Right ascension coordinate of the center of the image in degrees.
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Optional<double> objctdec; //!< Declination coordinate of the center of the image in degrees.
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IsoString radesys; //!< Reference system of celestial coordinates.
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Optional<double> equinox; //!< Equinox in years for the celestial coordinate system (not applicable if radesys = ICRS | GCRS).
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Optional<double> dateobs; //!< Observation start time as a Julian date, UTC timescale.
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Optional<double> dateend; //!< Observation end time as a Julian date, UTC timescale.
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Optional<double> longobs; //!< Geodetic longitude of the observation location in degrees. Reckoned positive east of the reference meridian.
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Optional<double> latobs; //!< Geodetic latitude of the observation location in degrees. Reckoned positive north of the equator.
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Optional<double> altobs; //!< Geodetic height of the observation location in meters.
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Optional<double> focallen; //!< Focal length in millimeters.
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Optional<double> xpixsz; //!< Pixel size in micrometers.
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Optional<double> crval1; //!< WCS coordinate at the reference pixel, X axis.
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Optional<double> crval2; //!< WCS coordinate at the reference pixel, Y axis.
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Optional<double> crpix1; //!< Image coordinate of the reference pixel on the X axis.
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Optional<double> crpix2; //!< Image coordinate of the reference pixel on the Y axis.
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Optional<double> cd1_1; //!< Rotation and scaling matrix: CDELT1 * cos(CROTA2)
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Optional<double> cd1_2; //!< Rotation and scaling matrix: -CDELT2 * sin(CROTA2)
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Optional<double> cd2_1; //!< Rotation and scaling matrix: CDELT1 * sin(CROTA2)
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Optional<double> cd2_2; //!< Rotation and scaling matrix: CDELT2 * cos(CROTA2)
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Optional<double> cdelt1; //!< Plate scale in degrees per pixel at the reference pixel, X axis.
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Optional<double> cdelt2; //!< Plate scale in degrees per pixel at the reference pixel, Y axis.
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Optional<double> crota1; //!< Rotation angle around the reference pixel in degrees. Same as CROTA2, unused.
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Optional<double> crota2; //!< Rotation angle around the reference pixel in degrees.
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IsoString ctype1; //!< Coordinate type and projection, X axis.
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IsoString ctype2; //!< Coordinate type and projection, Y axis.
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Optional<double> pv1_1; //!< Native longitude of the reference point in degrees.
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Optional<double> pv1_2; //!< Native latitude of the reference point in degrees.
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Optional<double> lonpole; //!< Native longitude of the pole of the coordinate system in degrees.
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Optional<double> latpole; //!< Native latitude of the pole of the coordinate system in degrees.
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IsoString refSpline; //!< If nonempty, the astrometric solution uses thin plate splines instead of WCS polynomials.
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/*!
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* Default constructor. Constructs an uninitialized/undefined %WCSKeywords
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* object.
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*/
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WCSKeywords() = default;
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/*!
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* Copy constructor.
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*/
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WCSKeywords( const WCSKeywords& ) = default;
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/*!
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* Constructs a %WCSKeywords object by extracting data from the specified
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* arrays of image \a properties and %FITS \a keywords.
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*
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* Metadata items available as image properties take precedence over
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* equivalent %FITS keywords.
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*/
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WCSKeywords( const PropertyArray& properties, const FITSKeywordArray& keywords = FITSKeywordArray() )
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{
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Read( properties, keywords );
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}
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/*!
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* Extracts WCS metadata from the specified arrays of image \a properties
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* and %FITS \a keywords.
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*
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* If some metadata items are not included in the \a properties and
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* \a keywords arrays, the previously defined items, if any, will be
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* preserved.
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*
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* Metadata items available as image properties take precedence over
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* equivalent %FITS keywords.
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*/
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void Read( const PropertyArray& properties, const FITSKeywordArray& keywords = FITSKeywordArray() );
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/*!
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*
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*/
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bool ExtractWorldTransformation( LinearTransformation& transIW, int imageHeight );
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};
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// ----------------------------------------------------------------------------
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} // pcl
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#endif // __PCL_WCSKeywords_h
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// ----------------------------------------------------------------------------
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// EOF pcl/WCSKeywords.h - Released 2022-03-12T18:59:29Z
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