1 | //#--------------------------------------------------------------------------- |
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2 | //# PKSreader.h: Class to read Parkes multibeam data. |
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3 | //#--------------------------------------------------------------------------- |
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4 | //# Copyright (C) 2000-2008 |
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5 | //# Associated Universities, Inc. Washington DC, USA. |
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6 | //# |
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7 | //# This library is free software; you can redistribute it and/or modify it |
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8 | //# under the terms of the GNU Library General Public License as published by |
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9 | //# the Free Software Foundation; either version 2 of the License, or (at your |
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10 | //# option) any later version. |
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11 | //# |
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12 | //# This library is distributed in the hope that it will be useful, but WITHOUT |
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13 | //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 | //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
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15 | //# License for more details. |
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16 | //# |
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17 | //# You should have received a copy of the GNU Library General Public License |
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18 | //# along with this library; if not, write to the Free Software Foundation, |
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19 | //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. |
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20 | //# |
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21 | //# Correspondence concerning AIPS++ should be addressed as follows: |
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22 | //# Internet email: aips2-request@nrao.edu. |
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23 | //# Postal address: AIPS++ Project Office |
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24 | //# National Radio Astronomy Observatory |
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25 | //# 520 Edgemont Road |
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26 | //# Charlottesville, VA 22903-2475 USA |
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27 | //# |
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28 | //# $Id: PKSreader.h,v 19.22 2008-11-17 06:44:34 cal103 Exp $ |
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29 | //#--------------------------------------------------------------------------- |
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30 | //# Original: 2000/08/02, Mark Calabretta, ATNF |
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31 | //#--------------------------------------------------------------------------- |
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32 | |
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33 | #ifndef ATNF_PKSREADER_H |
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34 | #define ATNF_PKSREADER_H |
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35 | |
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36 | #include <atnf/PKSIO/PKSmsg.h> |
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37 | #include <atnf/PKSIO/PKSrecord.h> |
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38 | |
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39 | #include <casa/aips.h> |
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40 | #include <casa/Arrays/Matrix.h> |
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41 | #include <casa/Arrays/Vector.h> |
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42 | #include <casa/BasicSL/String.h> |
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43 | |
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44 | #include <casa/namespace.h> |
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45 | |
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46 | // <summary> |
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47 | // Class to read Parkes multibeam data. |
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48 | // </summary> |
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49 | |
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50 | // Return an appropriate PKSreader for a Parkes Multibeam dataset. |
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51 | class PKSreader* getPKSreader( |
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52 | const String name, |
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53 | const Int retry, |
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54 | const Int interpolate, |
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55 | String &format); |
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56 | |
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57 | // As above, but search a list of directories for it. |
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58 | class PKSreader* getPKSreader( |
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59 | const String name, |
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60 | const Vector<String> directories, |
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61 | const Int retry, |
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62 | const Int interpolate, |
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63 | Int &iDir, |
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64 | String &format); |
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65 | |
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66 | // Open an appropriate PKSreader for a Parkes Multibeam dataset. |
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67 | class PKSreader* getPKSreader( |
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68 | const String name, |
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69 | const Int retry, |
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70 | const Int interpolate, |
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71 | String &format, |
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72 | Vector<Bool> &beams, |
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73 | Vector<Bool> &IFs, |
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74 | Vector<uInt> &nChan, |
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75 | Vector<uInt> &nPol, |
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76 | Vector<Bool> &haveXPol, |
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77 | Bool &haveBase, |
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78 | Bool &haveSpectra); |
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79 | |
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80 | // As above, but search a list of directories for it. |
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81 | class PKSreader* getPKSreader( |
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82 | const String name, |
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83 | const Vector<String> directories, |
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84 | const Int retry, |
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85 | const Int interpolate, |
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86 | Int &iDir, |
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87 | String &format, |
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88 | Vector<Bool> &beams, |
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89 | Vector<Bool> &IFs, |
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90 | Vector<uInt> &nChan, |
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91 | Vector<uInt> &nPol, |
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92 | Vector<Bool> &haveXPol, |
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93 | Bool &haveBase, |
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94 | Bool &haveSpectra); |
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95 | |
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96 | class PKSreader : public PKSmsg |
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97 | { |
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98 | public: |
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99 | // Destructor. |
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100 | virtual ~PKSreader() {}; |
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101 | |
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102 | // Open the dataset. |
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103 | virtual Int open( |
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104 | const String inName, |
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105 | Vector<Bool> &beams, |
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106 | Vector<Bool> &IFs, |
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107 | Vector<uInt> &nChan, |
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108 | Vector<uInt> &nPol, |
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109 | Vector<Bool> &haveXPol, |
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110 | Bool &haveBase, |
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111 | Bool &haveSpectra) = 0; |
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112 | |
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113 | // Get parameters describing the data. |
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114 | virtual Int getHeader( |
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115 | String &observer, |
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116 | String &project, |
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117 | String &antName, |
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118 | Vector<Double> &antPosition, |
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119 | String &obsType, |
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120 | String &bunit, |
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121 | Float &equinox, |
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122 | String &dopplerFrame, |
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123 | Double &mjd, |
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124 | Double &refFreq, |
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125 | Double &bandwidth) = 0; |
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126 | |
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127 | // Get frequency parameters for each IF. |
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128 | virtual Int getFreqInfo( |
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129 | Vector<Double> &startFreq, |
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130 | Vector<Double> &endFreq) = 0; |
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131 | |
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132 | // Set data selection criteria. Channel numbering is 1-relative, zero or |
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133 | // negative channel numbers are taken to be offsets from the last channel. |
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134 | // Coordinate system selection (only supported for SDFITS input): |
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135 | // 0: equatorial (RA,Dec), |
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136 | // 1: vertical (Az,El), |
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137 | // 2: feed-plane. |
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138 | virtual uInt select( |
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139 | const Vector<Bool> beamSel, |
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140 | const Vector<Bool> IFsel, |
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141 | const Vector<Int> startChan, |
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142 | const Vector<Int> endChan, |
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143 | const Vector<Int> refChan, |
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144 | const Bool getSpectra = True, |
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145 | const Bool getXPol = False, |
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146 | const Int coordSys = 0) = 0; |
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147 | |
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148 | // Find the range of the data selected in time and position. |
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149 | virtual Int findRange( |
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150 | Int &nRow, |
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151 | Int &nSel, |
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152 | Vector<Double> &timeSpan, |
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153 | Matrix<Double> &positions) = 0; |
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154 | |
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155 | // Read the next data record. |
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156 | virtual Int read(PKSrecord &pksrec) = 0; |
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157 | |
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158 | // Close the input file. |
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159 | virtual void close() = 0; |
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160 | |
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161 | protected: |
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162 | Bool cGetSpectra, cGetXPol; |
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163 | Int cCoordSys; |
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164 | |
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165 | Vector<uInt> cNChan, cNPol; |
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166 | Vector<Bool> cHaveXPol; |
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167 | }; |
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168 | |
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169 | #endif |
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