/usr/include/casacore/measures/Measures/MeasData.h is in casacore-dev 2.2.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 | //# MeasData.h: MeasData provides Measure computing data
//# Copyright (C) 1995,1996,1997,1999,2003
//# 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
//#
//#
//# $Id$
#ifndef MEASURES_MEASDATA_H
#define MEASURES_MEASDATA_H
//# Includes
#include <casacore/casa/aips.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
//# Forward Declarations
class RotMatrix;
// <summary>
// MeasData provides Measure computing data
// </summary>
// <use visibility=local>
// <reviewed reviewer="UNKNOWN" date="before2004/08/25" tests="tMeasMath" demos="">
// </reviewed>
// <prerequisite>
// <li> <linkto class=Measure>Measure</linkto> class
// </prerequisite>
//
// <etymology>
// MeasData from Measure and Data
// </etymology>
//
// <synopsis>
// MeasData contains the constant data
// necessary for precession, nutation and other
// <linkto class=Measure>Measure</linkto> related calculations.<br>
// Database (Table) related data, or data that can be changed by the user,
// is available in the <linkto class=MeasTable>MeasTable</linkto> class. <br>
// All data. apart from a set of simple constants:
// <srcblock>
// MeasData::MJD2000
// MeasData::MJDB1950
// MeasData::MJDB1900
// MeasData::MJDB1850
// MeasData::TROPCEN
// MeasData::JDCEN
// MeasData::SECinDAY
// </srcblock>
// are obtained by calls to a method.
// This class contains no constructors or destructors, only static
// methods and (static) constants.
// <br> References:<br> Explanatory supplements to the Astronomical Almanac
// <br> C. Ron and J. Vondrak, Bull. Astron. Inst. Czechosl. 37, p96, 1986
// <br> M. Soma, Th. Hirayama and H. Kinoshita, Celest. Mech. 41, p389, 1988
// <br> V.S. Gubanov, Astron. Zh. 49, p1112, 1972 (English translation:
// Sov. Astronomy - AJ, Vol. 16, No. 5, p. 907)
// </synopsis>
//
// <example>
// Usage examples can be found in <linkto class=Precession>Precession</linkto>
// </example>
//
// <motivation>
// To create a clean interface between the actual calculations and the
// methods to obtain the parameters for these calculations. Note that the
// tables are in general in the format and units found in the literature. This
// is to be able to easy check and change them. However, in the future
// re-arrangement could produce faster and more compact code.
// </motivation>
//
// <todo asof="1997/04/17">
// <li> more precise data for VLBI and pulsar
// </todo>
class MeasData {
public:
//# Constants
// General constants
// <group>
// MJD of J2000.0
static const Double MJD2000;
// MJD of B1950.0
static const Double MJDB1950;
// MJD of B1900.0
static const Double MJDB1900;
// MJD of B1850.0
static const Double MJDB1850;
// Length Tropical century
static const Double TROPCEN;
// Length Julian century
static const Double JDCEN;
// Length of day in sec
static const Double SECinDAY;
// </group>
//# General Member Functions
// Get the rotation matrices for galactic coordinates
// <group>
static const RotMatrix &GALtoB1950();
static const RotMatrix &GALtoJ2000();
static const RotMatrix &J2000toGAL();
static const RotMatrix &B1950toGAL();
// </group>
// Get one of the 4 3x3 sub rotation matrices for B1950-J2000 conversions
// <group>
static const RotMatrix &MToB1950(uInt which);
static const RotMatrix &MToJ2000(uInt which);
// </group>
// Get the solar semi diameter at 1 AU in rad
static Double SunSemiDiameter();
// J2000 obliquity
static Double eps0J2000();
private:
//# Constructors
// Default constructor, NOT defined
MeasData();
// Copy assign, NOT defined
MeasData &operator=(const MeasData &other);
//# Destructor
// Destructor (NOT defined) and not declared to stop warning
// ~MeasData();
//# General member functions
};
} //# NAMESPACE CASACORE - END
#endif
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