1 | //#--------------------------------------------------------------------------- |
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2 | //# PKSreader.cc: 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.cc,v 19.6 2008-06-26 01:54:08 cal103 Exp $ |
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29 | //#--------------------------------------------------------------------------- |
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30 | //# Original: 2000/08/23, Mark Calabretta, ATNF |
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31 | //#--------------------------------------------------------------------------- |
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32 | |
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33 | #include <atnf/PKSIO/PKSreader.h> |
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34 | #include <atnf/PKSIO/PKSFITSreader.h> |
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35 | |
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36 | #ifndef NOPKSMS |
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37 | #include <atnf/PKSIO/PKSMS2reader.h> |
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38 | #endif |
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39 | |
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40 | #include <casa/IO/RegularFileIO.h> |
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41 | #include <casa/OS/File.h> |
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42 | |
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43 | |
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44 | //--------------------------------------------------------------- getPKSreader |
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45 | |
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46 | // Return an appropriate PKSreader for a Parkes Multibeam dataset. |
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47 | |
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48 | PKSreader* getPKSreader( |
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49 | const String name, |
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50 | const Int retry, |
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51 | const Int interpolate, |
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52 | String &format, |
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53 | Vector<Bool> &beams, |
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54 | Vector<Bool> &IFs, |
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55 | Vector<uInt> &nChan, |
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56 | Vector<uInt> &nPol, |
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57 | Vector<Bool> &haveXPol, |
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58 | Bool &haveBase, |
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59 | Bool &haveSpectra) |
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60 | { |
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61 | // Check accessibility of the input. |
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62 | File inFile(name); |
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63 | if (!inFile.exists()) { |
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64 | format = "DATASET NOT FOUND"; |
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65 | return 0; |
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66 | } |
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67 | |
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68 | if (!inFile.isReadable()) { |
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69 | format = "DATASET UNREADABLE"; |
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70 | return 0; |
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71 | } |
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72 | |
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73 | // Determine the type of input. |
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74 | PKSreader *reader = 0; |
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75 | if (inFile.isRegular()) { |
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76 | // Is it MBFITS or SDFITS? |
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77 | if (strstr(name.chars(), ".sdfits")) { |
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78 | // Looks like SDFITS, possibly gzip'd. |
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79 | format = "SDFITS"; |
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80 | reader = new PKSFITSreader("SDFITS"); |
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81 | |
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82 | } else { |
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83 | RegularFileIO file(name); |
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84 | char buf[32]; |
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85 | file.read(30, buf, False); |
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86 | buf[30] = '\0'; |
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87 | if (String(buf) == "SIMPLE = T") { |
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88 | // Looks like SDFITS. |
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89 | format = "SDFITS"; |
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90 | reader = new PKSFITSreader("SDFITS"); |
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91 | |
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92 | } else { |
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93 | // Assume it's MBFITS. |
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94 | format = "MBFITS"; |
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95 | reader = new PKSFITSreader("MBFITS", retry, interpolate); |
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96 | } |
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97 | } |
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98 | |
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99 | } else if (inFile.isDirectory()) { |
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100 | if (File(name + "/DATA_DESCRIPTION").exists()) { |
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101 | // MS version 2. |
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102 | #ifdef NOPKSMS |
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103 | format = "MS2 INPUT FORMAT IS NO LONGER SUPPORTED"; |
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104 | #else |
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105 | format = "MS2"; |
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106 | reader = new PKSMS2reader(); |
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107 | #endif |
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108 | } |
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109 | |
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110 | } else { |
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111 | format = "UNRECOGNIZED INPUT FORMAT"; |
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112 | } |
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113 | |
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114 | |
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115 | // Try to open it. |
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116 | if (reader) { |
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117 | if (reader->open(name, beams, IFs, nChan, nPol, haveXPol, haveBase, |
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118 | haveSpectra)) { |
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119 | format += " OPEN ERROR"; |
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120 | delete reader; |
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121 | } else { |
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122 | return reader; |
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123 | } |
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124 | } |
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125 | |
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126 | return 0; |
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127 | } |
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128 | |
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129 | |
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130 | //--------------------------------------------------------------- getPKSreader |
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131 | |
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132 | // Search a list of directories for a Parkes Multibeam dataset and return an |
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133 | // appropriate PKSreader for it. |
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134 | |
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135 | PKSreader* getPKSreader( |
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136 | const String name, |
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137 | const Vector<String> directories, |
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138 | const Int retry, |
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139 | const Int interpolate, |
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140 | Int &iDir, |
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141 | String &format, |
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142 | Vector<Bool> &beams, |
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143 | Vector<Bool> &IFs, |
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144 | Vector<uInt> &nChan, |
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145 | Vector<uInt> &nPol, |
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146 | Vector<Bool> &haveXPol, |
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147 | Bool &haveBase, |
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148 | Bool &haveSpectra) |
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149 | { |
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150 | Int nDir = directories.nelements(); |
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151 | for (iDir = 0; iDir < nDir; iDir++) { |
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152 | String inName = directories(iDir) + "/" + name; |
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153 | PKSreader *reader = getPKSreader(inName, retry, interpolate, format, |
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154 | beams, IFs, nChan, nPol, haveXPol, |
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155 | haveBase, haveSpectra); |
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156 | if (reader != 0) { |
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157 | return reader; |
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158 | } |
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159 | } |
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160 | |
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161 | iDir = -1; |
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162 | return 0; |
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163 | } |
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164 | |
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165 | |
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166 | //-------------------------------------------------------- PKSFITSreader::read |
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167 | |
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168 | // Read the next data record. |
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169 | |
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170 | Int PKSreader::read( |
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171 | Int &scanNo, |
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172 | Int &cycleNo, |
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173 | Double &mjd, |
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174 | Double &interval, |
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175 | String &fieldName, |
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176 | String &srcName, |
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177 | Vector<Double> &srcDir, |
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178 | Vector<Double> &srcPM, |
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179 | Double &srcVel, |
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180 | String &obsType, |
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181 | Int &IFno, |
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182 | Double &refFreq, |
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183 | Double &bandwidth, |
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184 | Double &freqInc, |
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185 | Double &restFreq, |
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186 | Vector<Float> &tcal, |
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187 | String &tcalTime, |
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188 | Float &azimuth, |
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189 | Float &elevation, |
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190 | Float &parAngle, |
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191 | Float &focusAxi, |
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192 | Float &focusTan, |
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193 | Float &focusRot, |
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194 | Float &temperature, |
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195 | Float &pressure, |
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196 | Float &humidity, |
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197 | Float &windSpeed, |
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198 | Float &windAz, |
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199 | Int &refBeam, |
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200 | Int &beamNo, |
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201 | Vector<Double> &direction, |
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202 | Vector<Double> &scanRate, |
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203 | Vector<Float> &tsys, |
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204 | Vector<Float> &sigma, |
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205 | Vector<Float> &calFctr, |
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206 | Matrix<Float> &baseLin, |
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207 | Matrix<Float> &baseSub, |
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208 | Matrix<Float> &spectra, |
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209 | Matrix<uChar> &flagged, |
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210 | Complex &xCalFctr, |
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211 | Vector<Complex> &xPol) |
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212 | { |
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213 | Int status; |
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214 | MBrecord MBrec; |
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215 | |
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216 | if ((status = read(MBrec))) { |
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217 | if (status != -1) { |
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218 | status = 1; |
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219 | } |
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220 | |
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221 | return status; |
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222 | } |
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223 | |
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224 | scanNo = MBrec.scanNo; |
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225 | cycleNo = MBrec.cycleNo; |
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226 | mjd = MBrec.mjd; |
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227 | interval = MBrec.interval; |
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228 | fieldName = MBrec.fieldName; |
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229 | srcName = MBrec.srcName; |
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230 | srcDir = MBrec.srcDir; |
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231 | srcPM = MBrec.srcPM; |
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232 | srcVel = MBrec.srcVel; |
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233 | obsType = MBrec.obsType; |
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234 | IFno = MBrec.IFno; |
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235 | refFreq = MBrec.refFreq; |
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236 | bandwidth = MBrec.bandwidth; |
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237 | freqInc = MBrec.freqInc; |
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238 | restFreq = MBrec.restFreq; |
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239 | tcal = MBrec.tcal; |
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240 | tcalTime = MBrec.tcalTime; |
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241 | azimuth = MBrec.azimuth; |
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242 | elevation = MBrec.elevation; |
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243 | parAngle = MBrec.parAngle; |
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244 | focusAxi = MBrec.focusAxi; |
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245 | focusTan = MBrec.focusTan; |
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246 | focusRot = MBrec.focusRot; |
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247 | temperature = MBrec.temperature; |
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248 | pressure = MBrec.pressure; |
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249 | humidity = MBrec.humidity; |
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250 | windSpeed = MBrec.windSpeed; |
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251 | windAz = MBrec.windAz; |
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252 | refBeam = MBrec.refBeam; |
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253 | beamNo = MBrec.beamNo; |
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254 | direction = MBrec.direction; |
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255 | scanRate = MBrec.scanRate; |
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256 | tsys = MBrec.tsys; |
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257 | sigma = MBrec.sigma; |
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258 | calFctr = MBrec.calFctr; |
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259 | baseLin = MBrec.baseLin; |
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260 | baseSub = MBrec.baseSub; |
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261 | spectra = MBrec.spectra; |
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262 | flagged = MBrec.flagged; |
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263 | xCalFctr = MBrec.xCalFctr; |
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264 | xPol = MBrec.xPol; |
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265 | |
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266 | return 0; |
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267 | } |
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