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00001 //# MCDoppler.h: MDoppler conversion routines 00002 //# Copyright (C) 1995,1996,1997,1998,1999,2002 00003 //# Associated Universities, Inc. Washington DC, USA. 00004 //# 00005 //# This library is free software; you can redistribute it and/or modify it 00006 //# under the terms of the GNU Library General Public License as published by 00007 //# the Free Software Foundation; either version 2 of the License, or (at your 00008 //# option) any later version. 00009 //# 00010 //# This library is distributed in the hope that it will be useful, but WITHOUT 00011 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00012 //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 00013 //# License for more details. 00014 //# 00015 //# You should have received a copy of the GNU Library General Public License 00016 //# along with this library; if not, write to the Free Software Foundation, 00017 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. 00018 //# 00019 //# Correspondence concerning AIPS++ should be addressed as follows: 00020 //# Internet email: aips2-request@nrao.edu. 00021 //# Postal address: AIPS++ Project Office 00022 //# National Radio Astronomy Observatory 00023 //# 520 Edgemont Road 00024 //# Charlottesville, VA 22903-2475 USA 00025 //# 00026 //# 00027 //# $Id: MCDoppler.h 18093 2004-11-30 17:51:10Z ddebonis $ 00028 00029 #ifndef MEASURES_MCDOPPLER_H 00030 #define MEASURES_MCDOPPLER_H 00031 00032 //# Includes 00033 #include <casa/aips.h> 00034 #include <measures/Measures/MeasBase.h> 00035 #include <measures/Measures/MeasRef.h> 00036 #include <measures/Measures/MCBase.h> 00037 #include <measures/Measures/MConvertBase.h> 00038 #include <measures/Measures/MDoppler.h> 00039 00040 namespace casa { //# NAMESPACE CASA - BEGIN 00041 00042 //# Forward Declarations 00043 class MCDoppler; 00044 class String; 00045 00046 //# Typedefs 00047 00048 // <summary> MDoppler conversion routines </summary> 00049 00050 // <use visibility=local> 00051 00052 // <reviewed reviewer="UNKNOWN" date="before2004/08/25" tests="tMeasure" demos=""> 00053 // </reviewed> 00054 00055 // <prerequisite> 00056 // <li> <linkto class=Measure>Measure</linkto> class 00057 // <li> <linkto class=MCBase>MCBase</linkto> base class 00058 // <li> <linkto class=MConvertBase>overall conversion</linkto> class 00059 // </prerequisite> 00060 // 00061 // <etymology> 00062 // Measure, Convert and Doppler 00063 // </etymology> 00064 // 00065 // <synopsis> 00066 // Contains state machinery and caching for actual conversions 00067 // </synopsis> 00068 // 00069 // <example> 00070 // Conversion of a radio Doppler to an optical 00071 // <srcblock> 00072 // #include <measures/Measures.h> 00073 // #include <measures/Measures/MDoppler.h> 00074 // MDoppler radio(0.01); // A radio Doppler value 00075 // cout << "Doppler radio = " << radio << "; optical = " << 00076 // MDoppler::Convert(radio, MDoppler::OPTICAL)() << // Convert 00077 // endl; 00078 // </srcblock> 00079 // Setting up a conversion 00080 // <srcblock> 00081 // MDoppler::Convert to_opt(MDoppler::RADIO, MDoppler::OPTICAL); 00082 // for (Double d=0; d<0.1; d += 0.005) { 00083 // cout << "radio = " << d << " to optical = " << 00084 // to_opt(d) << endl; 00085 // </srcblock> 00086 // </example> 00087 // 00088 // <motivation> 00089 // </motivation> 00090 // 00091 // <todo asof="1996/05/04"> 00092 // </todo> 00093 00094 class MCDoppler : public MCBase { 00095 00096 public: 00097 00098 //# Friends 00099 // Conversion of data 00100 friend class MeasConvert<MDoppler>; 00101 00102 //# Constructors 00103 // Default constructor 00104 MCDoppler(); 00105 00106 //# Destructor 00107 ~MCDoppler(); 00108 00109 //# Member functions 00110 // Show the state of the conversion engine (mainly for debugging purposes) 00111 static String showState(); 00112 00113 private: 00114 00115 //# Enumerations 00116 // The list of actual routines provided. 00117 // <note role=warning> Each <src>AA_BB</src> in the list points to routine 00118 // that can be used in the FromTo list in the getConvert routine. 00119 // In addition the type to which each is converted should be in the 00120 // ToRef array, again in the proper order. </note> 00121 enum Routes { 00122 RADIO_RATIO, 00123 Z_RATIO, 00124 BETA_RATIO, 00125 GAMMA_RATIO, 00126 RATIO_RADIO, 00127 RATIO_Z, 00128 RATIO_BETA, 00129 RATIO_GAMMA, 00130 N_Routes }; 00131 00132 //# Typedefs 00133 00134 //# Operators 00135 00136 //# General Member Functions 00137 00138 //# Enumerations 00139 00140 //# Cached Data 00141 00142 //# State machine data 00143 // Has state matrix been made 00144 static Bool stateMade_p; 00145 // Transition list 00146 static uInt ToRef_p[N_Routes][3]; 00147 // Transition matrix 00148 static uInt FromTo_p[MDoppler::N_Types][MDoppler::N_Types]; 00149 00150 //# Member functions 00151 00152 // Create conversion function pointer 00153 virtual void getConvert(MConvertBase &mc, 00154 const MRBase &inref, 00155 const MRBase &outref); 00156 00157 // Create help structures for Measure conversion routines 00158 virtual void initConvert(uInt which, MConvertBase &mc); 00159 00160 // Delete the pointers used in the MeasConvert help structure cache 00161 virtual void clearConvert(); 00162 00163 // Routine to convert Doppler from one reference frame to another 00164 virtual void doConvert(MeasValue &in, 00165 MRBase &inref, 00166 MRBase &outref, 00167 const MConvertBase &mc); 00168 // Conversion routine to cater for inheritance question 00169 void doConvert(MVDoppler &in, 00170 MRBase &inref, 00171 MRBase &outref, 00172 const MConvertBase &mc); 00173 00174 }; 00175 00176 00177 } //# NAMESPACE CASA - END 00178 00179 #endif