1 | // ----------------------------------------------------------------------- |
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2 | // readRecon.cc: Read in an existing wavelet-reconstructed FITS file. |
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3 | // ----------------------------------------------------------------------- |
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4 | // Copyright (C) 2006, Matthew Whiting, ATNF |
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5 | // |
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6 | // This program is free software; you can redistribute it and/or modify it |
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7 | // under the terms of the GNU General Public License as published by the |
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8 | // Free Software Foundation; either version 2 of the License, or (at your |
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9 | // option) any later version. |
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10 | // |
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11 | // Duchamp is distributed in the hope that it will be useful, but WITHOUT |
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12 | // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 | // for more details. |
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15 | // |
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16 | // You should have received a copy of the GNU General Public License |
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17 | // along with Duchamp; if not, write to the Free Software Foundation, |
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18 | // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA |
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19 | // |
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20 | // Correspondence concerning Duchamp may be directed to: |
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21 | // Internet email: Matthew.Whiting [at] atnf.csiro.au |
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22 | // Postal address: Dr. Matthew Whiting |
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23 | // Australia Telescope National Facility, CSIRO |
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24 | // PO Box 76 |
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25 | // Epping NSW 1710 |
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26 | // AUSTRALIA |
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27 | // ----------------------------------------------------------------------- |
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28 | #include <iostream> |
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29 | #include <sstream> |
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30 | #include <string> |
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31 | #include <wcslib/wcs.h> |
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32 | #include <wcslib/wcshdr.h> |
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33 | #define WCSLIB_GETWCSTAB // define this so that we don't try to redefine wtbarr |
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34 | // (this is a problem when using gcc v.4+ |
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35 | #include <fitsio.h> |
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36 | #include <duchamp/duchamp.hh> |
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37 | #include <duchamp/Cubes/cubes.hh> |
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38 | |
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39 | namespace duchamp |
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40 | { |
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41 | |
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42 | int Cube::readReconCube() |
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43 | { |
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44 | /** |
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45 | * A way to read in a previously reconstructed array, corresponding |
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46 | * to the requested parameters, or in the filename given by reconFile. |
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47 | * Performs various tests to make sure there are no clashes between |
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48 | * the requested parameters and those stored in the header of the |
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49 | * FITS file. Also test to make sure that the size (and subsection, |
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50 | * if applicable) of the array is the same. |
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51 | */ |
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52 | |
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53 | |
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54 | int status = 0; |
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55 | |
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56 | if(!this->par.getFlagReconExists()){ |
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57 | duchampWarning("readReconCube", |
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58 | "reconExists flag is not set. Not reading anything in!\n"); |
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59 | return FAILURE; |
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60 | } |
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61 | else if(!this->par.getFlagATrous()){ |
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62 | duchampWarning("readReconCube", |
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63 | "flagATrous is not set. Don't need to read in recon array!\n"); |
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64 | return FAILURE; |
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65 | } |
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66 | else { |
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67 | |
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68 | // Check to see whether the parameters reconFile and/or residFile are defined |
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69 | bool reconGood = false; |
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70 | int exists; |
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71 | std::stringstream errmsg; |
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72 | if(this->par.getReconFile() != ""){ |
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73 | reconGood = true; |
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74 | fits_file_exists(this->par.getReconFile().c_str(),&exists,&status); |
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75 | if(exists<=0){ |
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76 | fits_report_error(stderr, status); |
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77 | errmsg<< "Cannot find requested ReconFile. Trying with parameters.\n" |
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78 | << "Bad reconFile was: "<<this->par.getReconFile() << std::endl; |
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79 | duchampWarning("readReconCube", errmsg.str()); |
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80 | reconGood = false; |
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81 | } |
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82 | } |
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83 | else{ |
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84 | errmsg<< "ReconFile not specified. Working out name from parameters.\n"; |
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85 | } |
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86 | |
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87 | if(!reconGood){ // if bad, need to look at parameters |
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88 | |
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89 | std::string reconFile = this->par.outputReconFile(); |
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90 | errmsg << "Trying file " << reconFile << std::endl; |
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91 | duchampWarning("readReconCube", errmsg.str() ); |
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92 | reconGood = true; |
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93 | fits_file_exists(reconFile.c_str(),&exists,&status); |
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94 | if(exists<=0){ |
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95 | fits_report_error(stderr, status); |
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96 | // duchampWarning("readReconCube","ReconFile not present.\n"); |
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97 | reconGood = false; |
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98 | } |
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99 | |
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100 | if(reconGood){ |
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101 | // were able to open this new file -- use this, so reset the |
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102 | // relevant parameter |
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103 | this->par.setReconFile(reconFile); |
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104 | } |
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105 | else { // if STILL bad, give error message and exit. |
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106 | duchampError("readReconCube","Cannot find reconstructed file.\n"); |
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107 | return FAILURE; |
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108 | } |
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109 | |
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110 | } |
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111 | |
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112 | // if we get to here, reconGood is true (ie. file is open); |
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113 | |
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114 | status=0; |
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115 | fitsfile *fptr; |
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116 | fits_open_file(&fptr,this->par.getReconFile().c_str(),READONLY,&status); |
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117 | short int maxdim=3; |
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118 | long *fpixel = new long[maxdim]; |
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119 | for(int i=0;i<maxdim;i++) fpixel[i]=1; |
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120 | long *dimAxesNew = new long[maxdim]; |
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121 | for(int i=0;i<maxdim;i++) dimAxesNew[i]=1; |
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122 | int bitpix,numAxesNew,anynul; |
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123 | |
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124 | status = 0; |
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125 | fits_get_img_param(fptr, maxdim, &bitpix, &numAxesNew, dimAxesNew, &status); |
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126 | if(status){ |
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127 | fits_report_error(stderr, status); |
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128 | return FAILURE; |
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129 | } |
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130 | |
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131 | if(numAxesNew != this->numDim){ |
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132 | std::stringstream errmsg; |
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133 | errmsg << "Reconstructed cube has a different number of axes to original!" |
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134 | << " (" << numAxesNew << " cf. " << this->numDim << ")\n"; |
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135 | duchampError("readReconCube", errmsg.str()); |
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136 | return FAILURE; |
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137 | } |
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138 | |
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139 | for(int i=0;i<numAxesNew;i++){ |
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140 | if(dimAxesNew[i]!=this->axisDim[i]){ |
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141 | std::stringstream errmsg; |
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142 | errmsg << "Reconstructed cube has different axis dimensions to original!" |
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143 | << "\nAxis #" << i+1 << " has size " << dimAxesNew[i] |
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144 | << " cf. " << this->axisDim[i] <<" in original.\n"; |
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145 | duchampError("readReconCube", errmsg.str()); |
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146 | return FAILURE; |
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147 | } |
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148 | } |
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149 | |
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150 | char *comment = new char[80]; |
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151 | |
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152 | if(this->par.getFlagSubsection()){ |
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153 | char *subsection = new char[80]; |
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154 | status = 0; |
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155 | fits_read_key(fptr, TSTRING, (char *)keyword_subsection.c_str(), |
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156 | subsection, comment, &status); |
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157 | if(status){ |
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158 | duchampError("readReconCube", |
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159 | "subsection keyword not present in reconFile.\n"); |
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160 | return FAILURE; |
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161 | } |
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162 | else{ |
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163 | if(this->par.getSubsection() != subsection){ |
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164 | std::stringstream errmsg; |
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165 | errmsg << "subsection keyword in reconFile (" << subsection |
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166 | << ") does not match that requested (" |
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167 | << this->par.getSubsection() << ").\n"; |
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168 | duchampError("readReconCube", errmsg.str()); |
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169 | return FAILURE; |
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170 | } |
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171 | } |
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172 | delete subsection; |
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173 | } |
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174 | |
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175 | int scaleMin,filterCode,reconDim; |
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176 | float snrRecon; |
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177 | status = 0; |
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178 | fits_read_key(fptr, TINT, (char *)keyword_reconDim.c_str(), |
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179 | &reconDim, comment, &status); |
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180 | if(reconDim != this->par.getReconDim()){ |
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181 | std::stringstream errmsg; |
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182 | errmsg << "reconDim keyword in reconFile (" << reconDim |
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183 | << ") does not match that requested (" |
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184 | << this->par.getReconDim() << ").\n"; |
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185 | duchampError("readReconCube", errmsg.str()); |
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186 | return FAILURE; |
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187 | } |
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188 | status = 0; |
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189 | fits_read_key(fptr, TINT, (char *)keyword_filterCode.c_str(), |
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190 | &filterCode, comment, &status); |
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191 | if(filterCode != this->par.getFilterCode()){ |
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192 | std::stringstream errmsg; |
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193 | errmsg << "filterCode keyword in reconFile (" << filterCode |
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194 | << ") does not match that requested (" |
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195 | << this->par.getFilterCode() << ").\n"; |
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196 | duchampError("readReconCube", errmsg.str()); |
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197 | return FAILURE; |
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198 | } |
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199 | status = 0; |
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200 | fits_read_key(fptr, TFLOAT, (char *)keyword_snrRecon.c_str(), |
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201 | &snrRecon, comment, &status); |
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202 | if(snrRecon != this->par.getAtrousCut()){ |
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203 | std::stringstream errmsg; |
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204 | errmsg << "snrRecon keyword in reconFile (" << snrRecon |
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205 | << ") does not match that requested (" |
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206 | << this->par.getAtrousCut() << ").\n"; |
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207 | duchampError("readReconCube", errmsg.str()); |
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208 | return FAILURE; |
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209 | } |
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210 | status = 0; |
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211 | fits_read_key(fptr, TINT, (char *)keyword_scaleMin.c_str(), |
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212 | &scaleMin, comment, &status); |
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213 | if(scaleMin != this->par.getMinScale()){ |
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214 | std::stringstream errmsg; |
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215 | errmsg << "scaleMin keyword in reconFile (" << scaleMin |
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216 | << ") does not match that requested (" |
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217 | << this->par.getMinScale() << ").\n"; |
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218 | duchampError("readReconCube", errmsg.str()); |
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219 | return FAILURE; |
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220 | } |
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221 | |
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222 | // |
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223 | // If we get to here, the reconFile exists and matches the atrous |
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224 | // parameters the user has requested. |
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225 | |
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226 | status = 0; |
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227 | fits_read_pix(fptr, TFLOAT, fpixel, this->numPixels, NULL, |
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228 | this->recon, &anynul, &status); |
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229 | |
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230 | status = 0; |
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231 | fits_close_file(fptr, &status); |
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232 | if (status){ |
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233 | duchampWarning("readReconCube", "Error closing file: "); |
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234 | fits_report_error(stderr, status); |
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235 | } |
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236 | |
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237 | // We don't want to write out the recon or resid files at the end |
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238 | this->par.setFlagOutputRecon(false); |
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239 | this->par.setFlagOutputResid(false); |
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240 | |
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241 | // The reconstruction is done -- set the appropriate flag |
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242 | this->reconExists = true; |
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243 | |
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244 | return SUCCESS; |
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245 | } |
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246 | } |
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247 | |
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248 | } |
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