1 | //#--------------------------------------------------------------------------- |
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2 | //# NRODataset.cc: Base class for NRO dataset. |
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3 | //#--------------------------------------------------------------------------- |
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4 | //# Copyright (C) 2000-2006 |
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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 | //# $Id$ |
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29 | //#--------------------------------------------------------------------------- |
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30 | //# Original: 2009/02/27, Takeshi Nakazato, NAOJ |
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31 | //#--------------------------------------------------------------------------- |
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32 | |
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33 | #include <atnf/PKSIO/NRODataset.h> |
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34 | #include <casa/OS/Time.h> |
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35 | #include <scimath/Mathematics/InterpolateArray1D.h> |
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36 | |
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37 | #include <measures/Measures/MeasConvert.h> |
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38 | #include <measures/Measures/MCFrequency.h> |
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39 | #include <measures/Measures/MFrequency.h> |
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40 | #include <measures/Measures/MPosition.h> |
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41 | #include <measures/Measures/MEpoch.h> |
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42 | #include <measures/Measures/MDirection.h> |
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43 | |
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44 | #include <math.h> |
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45 | #include <fstream> |
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46 | |
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47 | //#include <casa/namespace.h> |
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48 | |
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49 | using namespace std ; |
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50 | |
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51 | // |
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52 | // NRODataset |
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53 | // |
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54 | // Base class for NRO dataset. |
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55 | // |
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56 | |
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57 | // constructor |
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58 | NRODataset::NRODataset( string name ) |
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59 | { |
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60 | // memory allocation |
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61 | initialize() ; |
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62 | |
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63 | filename_ = name ; |
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64 | fp_ = NULL ; |
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65 | scanNum_ = 0 ; |
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66 | rowNum_ = 0 ; |
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67 | scanLen_ = 0 ; |
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68 | dataLen_ = 0 ; |
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69 | dataid_ = -1 ; |
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70 | |
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71 | // endian matches |
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72 | same_ = -1 ; |
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73 | |
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74 | // Record for frequency setting |
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75 | frec_ = Record() ; |
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76 | } |
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77 | |
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78 | // destructor |
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79 | NRODataset::~NRODataset() |
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80 | { |
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81 | // release memory |
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82 | releaseRecord() ; |
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83 | |
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84 | // close file |
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85 | close() ; |
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86 | } |
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87 | |
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88 | // data initialization |
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89 | void NRODataset::initialize() |
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90 | { |
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91 | datasize_ = sizeof( char ) * 8 // LOFIL |
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92 | + sizeof( char ) * 8 // VER |
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93 | + sizeof( char ) * 16 // GROUP |
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94 | + sizeof( char ) * 16 // PROJ |
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95 | + sizeof( char ) * 24 // SCHED |
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96 | + sizeof( char ) * 40 // OBSVR |
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97 | + sizeof( char ) * 16 // LOSTM |
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98 | + sizeof( char ) * 16 // LOETM |
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99 | + sizeof( int ) * 2 // ARYNM, NSCAN |
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100 | + sizeof( char ) * 120 // TITLE |
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101 | + sizeof( char ) * 16 // OBJ |
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102 | + sizeof( char ) * 8 // EPOCH |
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103 | + sizeof( double ) * 4 // RA0, DEC0, GLNG0, GLAT0 |
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104 | + sizeof( int ) * 2 // NCALB, SCNCD |
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105 | + sizeof( char ) * 120 // SCMOD |
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106 | + sizeof( double ) // URVEL |
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107 | + sizeof( char ) * 4 // VREF |
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108 | + sizeof( char ) * 4 // VDEF |
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109 | + sizeof( char ) * 8 // SWMOD |
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110 | + sizeof( double ) * 8 // FRQSW, DBEAM, MLTOF, CMTQ, CMTE, CMTSOM, CMTNODE, CMTI |
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111 | + sizeof( char ) * 24 // CMTTM |
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112 | + sizeof( double ) * 6 // SBDX, SBDY, SBDZ1, SBDZ2, DAZP, DELP |
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113 | + sizeof( int ) * 4 // CHBIND, NUMCH, CHMIN, CHMAX |
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114 | + sizeof( double ) * 3 // ALCTM, IPTIM, PA |
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115 | + sizeof( int ) * 3 // SCNLEN, SBIND, IBIT |
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116 | + sizeof( char ) * 8 ; // SITE |
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117 | |
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118 | // NRODataRecord |
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119 | record_ = new NRODataRecord() ; |
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120 | record_->LDATA = NULL ; |
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121 | } |
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122 | |
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123 | void NRODataset::convertEndian( int &value ) |
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124 | { |
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125 | char volatile *first = reinterpret_cast<char volatile *>( &value ) ; |
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126 | char volatile *last = first + sizeof( int ) ; |
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127 | std::reverse( first, last ) ; |
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128 | } |
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129 | |
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130 | void NRODataset::convertEndian( float &value ) |
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131 | { |
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132 | char volatile *first = reinterpret_cast<char volatile *>( &value ) ; |
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133 | char volatile *last = first + sizeof( float ) ; |
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134 | std::reverse( first, last ) ; |
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135 | } |
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136 | |
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137 | void NRODataset::convertEndian( double &value ) |
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138 | { |
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139 | char volatile *first = reinterpret_cast<char volatile *>( &value ) ; |
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140 | char volatile *last = first + sizeof( double ) ; |
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141 | std::reverse( first, last ) ; |
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142 | } |
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143 | |
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144 | int NRODataset::readHeader( char *v, int size ) |
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145 | { |
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146 | if ( (int)( fread( v, 1, size, fp_ ) ) != size ) { |
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147 | return -1 ; |
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148 | } |
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149 | return 0 ; |
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150 | } |
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151 | |
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152 | int NRODataset::readHeader( int &v, int b ) |
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153 | { |
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154 | if ( fread( &v, 1, sizeof(int), fp_ ) != sizeof(int) ) { |
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155 | return -1 ; |
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156 | } |
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157 | |
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158 | if ( b == 0 ) |
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159 | convertEndian( v ) ; |
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160 | |
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161 | return 0 ; |
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162 | } |
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163 | |
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164 | int NRODataset::readHeader( float &v, int b ) |
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165 | { |
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166 | if ( fread( &v, 1, sizeof(float), fp_ ) != sizeof(float) ) { |
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167 | return -1 ; |
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168 | } |
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169 | |
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170 | if ( b == 0 ) |
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171 | convertEndian( v ) ; |
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172 | |
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173 | return 0 ; |
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174 | } |
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175 | |
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176 | int NRODataset::readHeader( double &v, int b ) |
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177 | { |
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178 | if ( fread( &v, 1, sizeof(double), fp_ ) != sizeof(double) ) { |
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179 | return -1 ; |
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180 | } |
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181 | |
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182 | if ( b == 0 ) |
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183 | convertEndian( v ) ; |
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184 | |
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185 | return 0 ; |
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186 | } |
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187 | |
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188 | void NRODataset::convertEndian( NRODataRecord *r ) |
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189 | { |
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190 | convertEndian( r->ISCAN ) ; |
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191 | convertEndian( r->DSCX ) ; |
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192 | convertEndian( r->DSCY ) ; |
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193 | convertEndian( r->SCX ) ; |
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194 | convertEndian( r->SCY ) ; |
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195 | convertEndian( r->PAZ ) ; |
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196 | convertEndian( r->PEL ) ; |
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197 | convertEndian( r->RAZ ) ; |
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198 | convertEndian( r->REL ) ; |
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199 | convertEndian( r->XX ) ; |
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200 | convertEndian( r->YY ) ; |
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201 | convertEndian( r->TEMP ) ; |
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202 | convertEndian( r->PATM ) ; |
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203 | convertEndian( r->PH2O ) ; |
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204 | convertEndian( r->VWIND ) ; |
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205 | convertEndian( r->DWIND ) ; |
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206 | convertEndian( r->TAU ) ; |
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207 | convertEndian( r->TSYS ) ; |
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208 | convertEndian( r->BATM ) ; |
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209 | convertEndian( r->LINE ) ; |
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210 | for ( int i = 0 ; i < 4 ; i++ ) |
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211 | convertEndian( r->IDMY1[i] ) ; |
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212 | convertEndian( r->VRAD ) ; |
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213 | convertEndian( r->FREQ0 ) ; |
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214 | convertEndian( r->FQTRK ) ; |
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215 | convertEndian( r->FQIF1 ) ; |
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216 | convertEndian( r->ALCV ) ; |
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217 | for ( int i = 0 ; i < 2 ; i++ ) |
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218 | for ( int j = 0 ; j < 2 ; j++ ) |
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219 | convertEndian( r->OFFCD[i][j] ) ; |
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220 | convertEndian( r->IDMY0 ) ; |
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221 | convertEndian( r->IDMY2 ) ; |
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222 | convertEndian( r->DPFRQ ) ; |
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223 | convertEndian( r->SFCTR ) ; |
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224 | convertEndian( r->ADOFF ) ; |
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225 | } |
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226 | |
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227 | void NRODataset::releaseRecord() |
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228 | { |
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229 | if ( record_ ) { |
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230 | if ( record_->LDATA != NULL ) { |
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231 | delete record_->LDATA ; |
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232 | record_->LDATA = NULL ; |
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233 | } |
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234 | delete record_ ; |
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235 | record_ = NULL ; |
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236 | } |
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237 | dataid_ = -1 ; |
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238 | } |
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239 | |
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240 | // Get specified scan |
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241 | NRODataRecord *NRODataset::getRecord( int i ) |
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242 | { |
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243 | // DEBUG |
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244 | //cout << "NRODataset::getRecord() Start " << i << endl ; |
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245 | // |
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246 | if ( i < 0 || i >= rowNum_ ) { |
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247 | LogIO os( LogOrigin( "NRODataset", "getRecord()", WHERE ) ) ; |
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248 | //cerr << "NRODataset::getRecord() data index out of range." << endl ; |
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249 | os << LogIO::SEVERE << "data index " << i << " out of range. return NULL." << LogIO::POST ; |
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250 | return NULL ; |
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251 | } |
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252 | |
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253 | if ( i == dataid_ ) { |
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254 | return record_ ; |
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255 | } |
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256 | |
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257 | // DEBUG |
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258 | //cout << "NRODataset::getData() Get new dataset" << endl ; |
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259 | // |
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260 | // read data |
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261 | int status = fillRecord( i ) ; |
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262 | if ( status == 0 ) { |
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263 | dataid_ = i ; |
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264 | } |
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265 | else { |
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266 | LogIO os( LogOrigin( "NRODataset", "getRecord()", WHERE ) ) ; |
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267 | //cerr << "NRODataset::getRecord() error while reading data " << i << endl ; |
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268 | os << LogIO::SEVERE << "error while reading data " << i << ". return NULL." << LogIO::POST ; |
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269 | dataid_ = -1 ; |
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270 | return NULL ; |
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271 | } |
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272 | |
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273 | return record_ ; |
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274 | } |
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275 | |
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276 | int NRODataset::fillRecord( int i ) |
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277 | { |
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278 | int status = 0 ; |
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279 | |
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280 | status = open() ; |
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281 | if ( status != 0 ) |
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282 | return status ; |
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283 | |
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284 | |
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285 | // fill NRODataset |
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286 | int offset = getDataSize() + scanLen_ * i ; |
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287 | // DEBUG |
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288 | //cout << "NRODataset::fillRecord() offset (header) = " << offset << endl ; |
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289 | //cout << "NRODataset::fillRecord() sizeof(NRODataRecord) = " << sizeof( NRODataRecord ) << " byte" << endl ; |
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290 | fseek( fp_, offset, SEEK_SET ) ; |
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291 | if ( (int)fread( record_, 1, SCAN_HEADER_SIZE, fp_ ) != SCAN_HEADER_SIZE ) { |
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292 | //cerr << "Failed to read scan header: " << i << endl ; |
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293 | LogIO os( LogOrigin( "NRODataset", "fillRecord()", WHERE ) ) ; |
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294 | os << LogIO::SEVERE << "Failed to read scan header for " << i << "th row." << LogIO::POST ; |
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295 | return -1 ; |
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296 | } |
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297 | if ( (int)fread( record_->LDATA, 1, dataLen_, fp_ ) != dataLen_ ) { |
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298 | //cerr << "Failed to read spectral data: " << i << endl ; |
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299 | LogIO os( LogOrigin( "NRODataset", "fillRecord()", WHERE ) ) ; |
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300 | os << LogIO::SEVERE << "Failed to read spectral data for " << i << "th row." << LogIO::POST ; |
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301 | return -1 ; |
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302 | } |
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303 | |
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304 | if ( same_ == 0 ) { |
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305 | convertEndian( record_ ) ; |
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306 | } |
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307 | |
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308 | // DWIND unit conversion (deg -> rad) |
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309 | record_->DWIND = record_->DWIND * M_PI / 180.0 ; |
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310 | |
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311 | return status ; |
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312 | } |
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313 | |
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314 | // open |
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315 | int NRODataset::open() |
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316 | { |
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317 | int status = 0 ; |
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318 | |
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319 | if ( fp_ == NULL ) { |
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320 | if ( (fp_ = fopen( filename_.c_str(), "rb" )) == NULL ) |
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321 | status = -1 ; |
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322 | else |
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323 | status = 0 ; |
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324 | } |
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325 | |
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326 | return status ; |
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327 | } |
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328 | |
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329 | // close |
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330 | void NRODataset::close() |
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331 | { |
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332 | // DEBUG |
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333 | //cout << "NRODataset::close() close file" << endl ; |
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334 | // |
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335 | if ( fp_ != NULL ) |
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336 | fclose( fp_ ) ; |
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337 | fp_ = NULL ; |
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338 | } |
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339 | |
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340 | // get spectrum |
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341 | vector< vector<double> > NRODataset::getSpectrum() |
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342 | { |
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343 | vector< vector<double> > spec(rowNum_); |
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344 | |
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345 | for ( int i = 0 ; i < rowNum_ ; i++ ) { |
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346 | spec[i] = getSpectrum( i ) ; |
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347 | } |
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348 | |
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349 | return spec ; |
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350 | } |
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351 | |
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352 | vector<double> NRODataset::getSpectrum( int i ) |
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353 | { |
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354 | // DEBUG |
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355 | //cout << "NRODataset::getSpectrum() start process (" << i << ")" << endl ; |
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356 | // |
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357 | // size of spectrum is not chmax_ but dataset_->getNCH() after binding |
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358 | const int nchan = NUMCH ; |
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359 | vector<double> spec( chmax_ ) ; // spectrum "before" binding |
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360 | // DEBUG |
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361 | //cout << "NRODataset::getSpectrum() nchan = " << nchan << " chmax_ = " << chmax_ << endl ; |
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362 | // |
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363 | |
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364 | NRODataRecord *record = getRecord( i ) ; |
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365 | |
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366 | const int bit = IBIT ; // fixed to 12 bit |
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367 | double scale = record->SFCTR ; |
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368 | // DEBUG |
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369 | //cout << "NRODataset::getSpectrum() scale = " << scale << endl ; |
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370 | // |
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371 | double offset = record->ADOFF ; |
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372 | // DEBUG |
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373 | //cout << "NRODataset::getSpectrum() offset = " << offset << endl ; |
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374 | // |
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375 | if ( ( scale == 0.0 ) && ( offset == 0.0 ) ) { |
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376 | //cerr << "NRODataset::getSpectrum() zero spectrum (" << i << ")" << endl ; |
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377 | LogIO os( LogOrigin("NRODataset","getSpectrum",WHERE) ) ; |
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378 | os << LogIO::WARN << "zero spectrum for row " << i << LogIO::POST ; |
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379 | if ( spec.size() != nchan ) |
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380 | spec.resize( nchan ) ; |
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381 | for ( vector<double>::iterator i = spec.begin() ; |
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382 | i != spec.end() ; i++ ) |
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383 | *i = 0.0 ; |
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384 | return spec ; |
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385 | } |
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386 | unsigned char *cdata = (unsigned char *)record->LDATA ; |
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387 | vector<double> mscale = MLTSCF ; |
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388 | double dscale = mscale[getIndex( i )] ; |
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389 | int cbind = CHBIND ; |
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390 | int chmin = CHMIN ; |
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391 | |
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392 | // char -> int -> double |
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393 | vector<double>::iterator iter = spec.begin() ; |
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394 | |
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395 | static const int shift_right[] = { |
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396 | 4, 0 |
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397 | }; |
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398 | static const int start_pos[] = { |
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399 | 0, 1 |
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400 | }; |
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401 | static const int incr[] = { |
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402 | 0, 3 |
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403 | }; |
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404 | int j = 0 ; |
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405 | for ( int i = 0 ; i < chmax_ ; i++ ) { |
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406 | // char -> int |
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407 | int ivalue = 0 ; |
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408 | if ( bit == 12 ) { // 12 bit qunatization |
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409 | const int ialt = i & 1 ; |
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410 | const int idx = j + start_pos[ialt]; |
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411 | const unsigned tmp = unsigned(cdata[idx]) << 8 | cdata[idx + 1]; |
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412 | ivalue = int((tmp >> shift_right[ialt]) & 0xFFF); |
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413 | j += incr[ialt]; |
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414 | } |
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415 | |
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416 | if ( ( ivalue < 0 ) || ( ivalue > 4096 ) ) { |
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417 | //cerr << "NRODataset::getSpectrum() ispec[" << i << "] is out of range" << endl ; |
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418 | LogIO os( LogOrigin( "NRODataset", "getSpectrum", WHERE ) ) ; |
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419 | os << LogIO::SEVERE << "ivalue for row " << i << " is out of range" << LogIO::EXCEPTION ; |
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420 | if ( spec.size() != nchan ) |
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421 | spec.resize( nchan ) ; |
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422 | for ( vector<double>::iterator i = spec.begin() ; |
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423 | i != spec.end() ; i++ ) |
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424 | *i = 0.0 ; |
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425 | return spec ; |
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426 | } |
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427 | // DEBUG |
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428 | //cout << "NRODataset::getSpectrum() ispec[" << i << "] = " << ispec[i] << endl ; |
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429 | // |
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430 | |
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431 | // int -> double |
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432 | *iter = (double)( ivalue * scale + offset ) * dscale ; |
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433 | // DEBUG |
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434 | //cout << "NRODataset::getSpectrum() spec[" << i << "] = " << *iter << endl ; |
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435 | // |
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436 | iter++ ; |
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437 | } |
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438 | |
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439 | // channel binding if necessary |
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440 | if ( cbind != 1 ) { |
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441 | iter = spec.begin() ; |
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442 | advance( iter, chmin ) ; |
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443 | vector<double>::iterator iter2 = spec.begin() ; |
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444 | for ( int i = 0 ; i < nchan ; i++ ) { |
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445 | double sum0 = 0 ; |
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446 | double sum1 = 0 ; |
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447 | for ( int j = 0 ; j < cbind ; j++ ) { |
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448 | sum0 += *iter ; |
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449 | sum1 += 1.0 ; |
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450 | iter++ ; |
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451 | } |
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452 | *iter2 = sum0 / sum1 ; |
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453 | iter2++ ; |
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454 | // DEBUG |
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455 | //cout << "NRODataset::getSpectrum() bspec[" << i << "] = " << bspec[i] << endl ; |
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456 | // |
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457 | } |
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458 | spec.resize( nchan ) ; |
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459 | } |
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460 | |
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461 | // DEBUG |
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462 | //cout << "NRODataset::getSpectrum() end process" << endl ; |
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463 | // |
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464 | |
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465 | return spec ; |
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466 | } |
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467 | |
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468 | int NRODataset::getIndex( int irow ) |
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469 | { |
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470 | // DEBUG |
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471 | //cout << "NRODataset::getIndex() start" << endl ; |
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472 | // |
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473 | NRODataRecord *record = getRecord( irow ) ; |
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474 | string str = record->ARRYT ; |
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475 | // DEBUG |
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476 | //cout << "NRODataset::getIndex() str = " << str << endl ; |
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477 | // |
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478 | string substr = str.substr( 1, 2 ) ; |
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479 | unsigned int index = (unsigned int)(atoi( substr.c_str() ) - 1) ; |
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480 | // DEBUG |
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481 | //cout << "NRODataset::getIndex() irow = " << irow << " index = " << index << endl ; |
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482 | // |
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483 | |
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484 | // DEBUG |
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485 | //cout << "NRODataset::getIndex() end" << endl ; |
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486 | // |
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487 | return index ; |
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488 | } |
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489 | |
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490 | int NRODataset::getPolarizationNum() |
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491 | { |
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492 | // DEBUG |
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493 | //cout << "NRODataset::getPolarizationNum() start process" << endl ; |
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494 | // |
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495 | int npol = 0 ; |
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496 | |
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497 | vector<string> type( 2 ) ; |
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498 | type[0] = "CIRC" ; |
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499 | type[1] = "LINR" ; |
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500 | vector<double> crot ; |
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501 | vector<double> lagl ; |
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502 | //vector<int> ntype( 2, 0 ) ; |
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503 | |
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504 | unsigned int imax = rowNum_ ; |
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505 | for ( unsigned int i = 0 ; i < imax ; i++ ) { |
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506 | int index = getIndex( i ) ; |
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507 | // DEBUG |
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508 | //cout <<"NRODataset::getPolarizationNum() index = " << index << endl ; |
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509 | // |
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510 | if ( POLTP[index] == type[0] ) { |
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511 | if( count( crot.begin(), crot.end(), POLDR[index] ) != 0 ) { |
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512 | crot.push_back( POLDR[index] ) ; |
---|
513 | npol++ ; |
---|
514 | } |
---|
515 | //ntype[0] = 1 ; |
---|
516 | } |
---|
517 | else if ( POLTP[index] == type[1] ) { |
---|
518 | if ( count( lagl.begin(), lagl.end(), POLAN[index] ) != 0 ) { |
---|
519 | lagl.push_back( POLAN[index] ) ; |
---|
520 | npol++ ; |
---|
521 | } |
---|
522 | //ntype[1] = 1 ; |
---|
523 | } |
---|
524 | } |
---|
525 | |
---|
526 | if ( npol == 0 ) |
---|
527 | npol = 1 ; |
---|
528 | |
---|
529 | // DEBUG |
---|
530 | //cout << "NRODataset::getPolarizationNum() end process" << endl ; |
---|
531 | // |
---|
532 | |
---|
533 | return npol ; |
---|
534 | } |
---|
535 | |
---|
536 | vector<double> NRODataset::getStartIntTime() |
---|
537 | { |
---|
538 | vector<double> times ; |
---|
539 | for ( int i = 0 ; i < rowNum_ ; i++ ) { |
---|
540 | times.push_back( getStartIntTime( i ) ) ; |
---|
541 | } |
---|
542 | return times ; |
---|
543 | } |
---|
544 | |
---|
545 | double NRODataset::getStartIntTime( int i ) |
---|
546 | { |
---|
547 | NRODataRecord *record = getRecord( i ) ; |
---|
548 | |
---|
549 | char *t = record->LAVST ; |
---|
550 | return getMJD( t ) ; |
---|
551 | } |
---|
552 | |
---|
553 | double NRODataset::getMJD( char *time ) |
---|
554 | { |
---|
555 | // TODO: should be checked which time zone the time depends on |
---|
556 | // 2008/11/14 Takeshi Nakazato |
---|
557 | string strStartTime( time ) ; |
---|
558 | string strYear = strStartTime.substr( 0, 4 ) ; |
---|
559 | string strMonth = strStartTime.substr( 4, 2 ) ; |
---|
560 | string strDay = strStartTime.substr( 6, 2 ) ; |
---|
561 | string strHour = strStartTime.substr( 8, 2 ) ; |
---|
562 | string strMinute = strStartTime.substr( 10, 2 ) ; |
---|
563 | string strSecond = strStartTime.substr( 12, strStartTime.size() - 12 ) ; |
---|
564 | unsigned int year = atoi( strYear.c_str() ) ; |
---|
565 | unsigned int month = atoi( strMonth.c_str() ) ; |
---|
566 | unsigned int day = atoi( strDay.c_str() ) ; |
---|
567 | unsigned int hour = atoi( strHour.c_str() ) ; |
---|
568 | unsigned int minute = atoi( strMinute.c_str() ) ; |
---|
569 | double second = atof( strSecond.c_str() ) ; |
---|
570 | Time t( year, month, day, hour, minute, second ) ; |
---|
571 | |
---|
572 | return t.modifiedJulianDay() ; |
---|
573 | } |
---|
574 | |
---|
575 | double NRODataset::getScanTime( int i ) |
---|
576 | { |
---|
577 | double startTime = getStartIntTime( i ) ; |
---|
578 | double interval = getIPTIM() / 86400.0 ; // [sec]->[day] |
---|
579 | return startTime+0.5*interval ; |
---|
580 | } |
---|
581 | |
---|
582 | vector<bool> NRODataset::getIFs() |
---|
583 | { |
---|
584 | vector<bool> v ; |
---|
585 | vector< vector<double> > fref ; |
---|
586 | vector< vector<double> > chcal = CHCAL ; |
---|
587 | vector<double> f0cal = F0CAL ; |
---|
588 | vector<double> beres = BERES ; |
---|
589 | for ( int i = 0 ; i < rowNum_ ; i++ ) { |
---|
590 | vector<double> f( 4, 0 ) ; |
---|
591 | uInt index = getIndex( i ) ; |
---|
592 | f[0] = chcal[index][0] ; |
---|
593 | f[1] = f0cal[index] ; |
---|
594 | f[2] = beres[index] ; |
---|
595 | if ( f[0] != 0. ) { |
---|
596 | f[1] = f[1] - f[0] * f[2] ; |
---|
597 | } |
---|
598 | NRODataRecord *record = getRecord( i ) ; |
---|
599 | f[3] = record->FREQ0 ; |
---|
600 | if ( v.size() == 0 ) { |
---|
601 | v.push_back( True ) ; |
---|
602 | fref.push_back( f ) ; |
---|
603 | } |
---|
604 | else { |
---|
605 | bool b = true ; |
---|
606 | int fsize = fref.size() ; |
---|
607 | for ( int j = 0 ; j < fsize ; j++ ) { |
---|
608 | if ( fref[j][1] == f[1] && fref[j][2] == f[2] && fref[j][3] == f[3] ) { |
---|
609 | b = false ; |
---|
610 | } |
---|
611 | } |
---|
612 | if ( b ) { |
---|
613 | v.push_back( True ) ; |
---|
614 | fref.push_back( f ) ; |
---|
615 | } |
---|
616 | } |
---|
617 | } |
---|
618 | |
---|
619 | |
---|
620 | // DEBUG |
---|
621 | //cout << "NRODataset::getIFs() number of IF is " << v.size() << endl ; |
---|
622 | // |
---|
623 | |
---|
624 | return v ; |
---|
625 | } |
---|
626 | |
---|
627 | vector<double> NRODataset::getFrequencies( int i ) |
---|
628 | { |
---|
629 | // return value |
---|
630 | // v[0] reference channel |
---|
631 | // v[1] reference frequency |
---|
632 | // v[2] frequency increment |
---|
633 | vector<double> v( 3, 0.0 ) ; |
---|
634 | |
---|
635 | NRODataRecord *record = getRecord( i ) ; |
---|
636 | string arryt = string( record->ARRYT ) ; |
---|
637 | uInt ib = getArrayId( arryt ) ; |
---|
638 | string rxname = getRX()[0] ; |
---|
639 | string key = arryt ; |
---|
640 | if ( rxname.find("MULT2") != string::npos ) |
---|
641 | key = "BEARS" ; |
---|
642 | |
---|
643 | if ( frec_.isDefined( key ) ) { |
---|
644 | // frequency for the array is already calculated |
---|
645 | Vector<Double> f = frec_.asArrayDouble( key ) ; |
---|
646 | Double *f_p = f.data() ; |
---|
647 | for ( int i = 0 ; i < 3 ; i++ ) |
---|
648 | v[i] = (double)(f_p[i]) ; |
---|
649 | return v ; |
---|
650 | } |
---|
651 | |
---|
652 | //int ia = -1 ; |
---|
653 | bool isAOS = false ; |
---|
654 | //cout << "NRODataset::getFrequencies() record->ARRYT=" << record->ARRYT << endl ; |
---|
655 | //cout << "NRODataset::getFrequencies() ib = " << ib << endl ; |
---|
656 | |
---|
657 | if ( arryt[0] == 'W' || arryt[0] == 'U' || arryt[0] == 'H' ) |
---|
658 | isAOS = true ; |
---|
659 | |
---|
660 | Bool isUSB ; |
---|
661 | if ( record->FQIF1 > 0 ) |
---|
662 | isUSB = True ; // USB |
---|
663 | else |
---|
664 | isUSB = False ; // LSB |
---|
665 | |
---|
666 | int ivdef = -1 ; |
---|
667 | if ( (getVDEF()).compare( 0, 3, "RAD" ) == 0 ) |
---|
668 | ivdef = 0 ; |
---|
669 | else if ( (getVDEF()).compare( 0, 3, "OPT" ) == 0 ) |
---|
670 | ivdef = 1 ; |
---|
671 | // DEBUG |
---|
672 | //cout << "NRODataset::getFrequencies() ivdef = " << ivdef << endl ; |
---|
673 | // |
---|
674 | double vel = getURVEL() + record->VRAD ; |
---|
675 | double cvel = 2.99792458e8 ; // speed of light [m/s] |
---|
676 | double fq0 = record->FREQ0 ; |
---|
677 | //double fq0 = record->FQTRK ; |
---|
678 | |
---|
679 | int ncal = getNFCAL()[ib] ; |
---|
680 | double cw = 0.0 ; |
---|
681 | vector<double> fqcal = getFQCAL()[ib] ; |
---|
682 | vector<double> chcal = getCHCAL()[ib] ; |
---|
683 | double f0cal = getF0CAL()[ib] ; |
---|
684 | Vector<Double> freqs( ncal, fq0-f0cal ) ; |
---|
685 | |
---|
686 | double factor = vel / cvel ; |
---|
687 | if ( ivdef == 0 ) |
---|
688 | factor = 1.0 / ( 1.0 - factor ) ; |
---|
689 | for ( int ii = 0 ; ii < ncal ; ii++ ) { |
---|
690 | freqs[ii] += fqcal[ii] ; |
---|
691 | if ( ivdef == 0 ) { |
---|
692 | freqs[ii] = freqs[ii] * factor + record->FQTRK * ( 1.0 - factor ) ; |
---|
693 | } |
---|
694 | else if ( ivdef == 1 ) { |
---|
695 | freqs[ii] = freqs[ii] * ( 1.0 + factor ) - record->FQTRK * factor ; |
---|
696 | } |
---|
697 | |
---|
698 | //ofstream ofs("freqs.txt",ios::out|ios::app) ; |
---|
699 | //ofs << setprecision(16) ; |
---|
700 | //ofs << i << " " << record->ARRYT << " " << chcal[ii] << " " << freqs[ii] << " " << record->ISCAN << " " << fqcal[ii] << " " << f0cal << " " << record->FQTRK << " " << vel << endl ; |
---|
701 | //ofs.close() ; |
---|
702 | |
---|
703 | } |
---|
704 | |
---|
705 | if ( isAOS ) { |
---|
706 | // regridding |
---|
707 | while ( ncal < (int)chcal.size() ) { |
---|
708 | chcal.pop_back() ; |
---|
709 | } |
---|
710 | Vector<Double> xin( chcal ) ; |
---|
711 | Vector<Double> yin( freqs ) ; |
---|
712 | int nchan = getNUMCH() ; |
---|
713 | Vector<Double> xout( nchan ) ; |
---|
714 | indgen( xout ) ; |
---|
715 | Vector<Double> yout ; |
---|
716 | InterpolateArray1D<Double, Double>::interpolate( yout, xout, xin, yin, InterpolateArray1D<Double,Double>::cubic ) ; |
---|
717 | Double bw = abs( yout[nchan-1] - yout[0] ) ; |
---|
718 | bw += 0.5 * abs( yout[nchan-1] - yout[nchan-2] + yout[1] - yout[0] ) ; |
---|
719 | Double dz = bw / (Double) nchan ; |
---|
720 | if ( yout[0] > yout[1] ) |
---|
721 | dz = - dz ; |
---|
722 | v[0] = 0 ; |
---|
723 | v[1] = yout[0] ; |
---|
724 | v[2] = dz ; |
---|
725 | } |
---|
726 | else { |
---|
727 | |
---|
728 | cw = ( freqs[1] - freqs[0] ) |
---|
729 | / ( chcal[1] - chcal[0] ) ; |
---|
730 | |
---|
731 | if ( isUSB ) { |
---|
732 | // channel frequency inversion |
---|
733 | cw *= -1.0 ; |
---|
734 | Double tmp = freqs[1] ; |
---|
735 | freqs[1] = freqs[0] ; |
---|
736 | freqs[0] = tmp ; |
---|
737 | } |
---|
738 | |
---|
739 | v[0] = chcal[0] - 1 ; // 0-base |
---|
740 | v[1] = freqs[0] ; |
---|
741 | v[2] = cw ; |
---|
742 | } |
---|
743 | |
---|
744 | if ( refFreq_[ib] == 0.0 ) |
---|
745 | refFreq_[ib] = v[1] ; |
---|
746 | |
---|
747 | // register frequency setting to Record |
---|
748 | Vector<Double> f( v ) ; |
---|
749 | frec_.define( key, f ) ; |
---|
750 | |
---|
751 | return v ; |
---|
752 | } |
---|
753 | |
---|
754 | uInt NRODataset::getArrayId( string type ) |
---|
755 | { |
---|
756 | string sbeamno = type.substr( 1, type.size()-1 ) ; |
---|
757 | uInt ib = atoi( sbeamno.c_str() ) - 1 ; |
---|
758 | return ib ; |
---|
759 | } |
---|
760 | |
---|
761 | void NRODataset::show() |
---|
762 | { |
---|
763 | LogIO os( LogOrigin( "NRODataset", "show()", WHERE ) ) ; |
---|
764 | |
---|
765 | os << LogIO::NORMAL << "------------------------------------------------------------" << endl ; |
---|
766 | os << LogIO::NORMAL << "Number of scan = " << scanNum_ << endl ; |
---|
767 | os << LogIO::NORMAL << "Number of data record = " << rowNum_ << endl ; |
---|
768 | os << LogIO::NORMAL << "Length of data record = " << scanLen_ << " bytes" << endl ; |
---|
769 | os << LogIO::NORMAL << "Allocated memory for spectral data = " << dataLen_ << " bytes" << endl ; |
---|
770 | os << LogIO::NORMAL << "Max number of channel = " << chmax_ << endl ; |
---|
771 | os << LogIO::NORMAL << "------------------------------------------------------------" << endl ; |
---|
772 | os.post() ; |
---|
773 | |
---|
774 | } |
---|
775 | |
---|
776 | double NRODataset::toLSR( double v, double t, double x, double y ) |
---|
777 | { |
---|
778 | double vlsr ; |
---|
779 | |
---|
780 | // get epoch |
---|
781 | double tcent = t + 0.5*getIPTIM()/86400.0 ; |
---|
782 | MEpoch me( Quantity( tcent, "d" ), MEpoch::UTC ) ; |
---|
783 | |
---|
784 | // get antenna position |
---|
785 | MPosition mp ; |
---|
786 | if ( SITE.find( "45" ) != string::npos ) { |
---|
787 | // 45m telescope |
---|
788 | Double posx = -3.8710235e6 ; |
---|
789 | Double posy = 3.4281068e6 ; |
---|
790 | Double posz = 3.7240395e6 ; |
---|
791 | mp = MPosition( MVPosition( posx, posy, posz ), |
---|
792 | MPosition::ITRF ) ; |
---|
793 | } |
---|
794 | else { |
---|
795 | // ASTE |
---|
796 | Vector<Double> pos( 2 ) ; |
---|
797 | pos[0] = -67.7031 ; |
---|
798 | pos[1] = -22.9717 ; |
---|
799 | Double sitealt = 4800.0 ; |
---|
800 | mp = MPosition( MVPosition( Quantity( sitealt, "m" ), |
---|
801 | Quantum< Vector<Double> >( pos, "deg" ) ), |
---|
802 | MPosition::WGS84 ) ; |
---|
803 | } |
---|
804 | |
---|
805 | // get direction |
---|
806 | MDirection md ; |
---|
807 | if ( SCNCD == 0 ) { |
---|
808 | // RADEC |
---|
809 | if ( EPOCH == "B1950" ) { |
---|
810 | md = MDirection( Quantity( Double(x), "rad" ), Quantity( Double(y), "rad" ), |
---|
811 | MDirection::B1950 ) ; |
---|
812 | } |
---|
813 | else { |
---|
814 | md = MDirection( Quantity( Double(x), "rad" ), Quantity( Double(y), "rad" ), |
---|
815 | MDirection::J2000 ) ; |
---|
816 | } |
---|
817 | } |
---|
818 | else if ( SCNCD == 1 ) { |
---|
819 | // LB |
---|
820 | md = MDirection( Quantity( Double(x), "rad" ), Quantity( Double(y), "rad" ), |
---|
821 | MDirection::GALACTIC ) ; |
---|
822 | } |
---|
823 | else { |
---|
824 | // AZEL |
---|
825 | md = MDirection( Quantity( Double(x), "rad" ), Quantity( Double(y), "rad" ), |
---|
826 | MDirection::AZEL ) ; |
---|
827 | } |
---|
828 | |
---|
829 | // to LSR |
---|
830 | MeasFrame mf( me, mp, md ) ; |
---|
831 | MFrequency::Convert tolsr( MFrequency::TOPO, MFrequency::Ref( MFrequency::LSRK, mf ) ) ; |
---|
832 | vlsr = (double)(tolsr( Double(v) ).get( "Hz" ).getValue()) ; |
---|
833 | |
---|
834 | return vlsr ; |
---|
835 | } |
---|
836 | |
---|
837 | uInt NRODataset::getPolNo( int i ) |
---|
838 | { |
---|
839 | int idx = getIndex( i ) ; |
---|
840 | // cout << "HORN[" << idx << "]=" << HORN[idx] |
---|
841 | // << ", RX[" << idx << "]=" << RX[idx] << endl ; |
---|
842 | return polNoFromRX( RX[idx].c_str() ) ; |
---|
843 | } |
---|
844 | |
---|
845 | uInt NRODataset::polNoFromRX( const char *rx ) |
---|
846 | { |
---|
847 | uInt polno = 0 ; |
---|
848 | // 2012/03/15 TN |
---|
849 | // T100H/V is multi-polarization receiver which is installed |
---|
850 | // on NRO 45m telescope. Here, POLNO is assigned as follows: |
---|
851 | // |
---|
852 | // POLNO=0: T100H |
---|
853 | // 1: T100V |
---|
854 | // |
---|
855 | // For other receivers, POLNO is always 0. |
---|
856 | if ( strncmp( rx, "T100V", 5 ) == 0 ) |
---|
857 | polno = 1 ; |
---|
858 | return polno ; |
---|
859 | } |
---|