1 | #include <iostream> |
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2 | #include <sstream> |
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3 | #include <string> |
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4 | #include <wcs.h> |
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5 | #include <wcshdr.h> |
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6 | #define WCSLIB_GETWCSTAB // define this so that we don't try and redefine wtbarr |
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7 | // (this is a problem when using gcc v.4+ |
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8 | #include <fitsio.h> |
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9 | #include <duchamp.hh> |
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10 | #include <Cubes/cubes.hh> |
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11 | |
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12 | int Cube::readReconCube() |
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13 | { |
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14 | /** |
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15 | * Cube::readReconCube() |
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16 | * |
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17 | * A way to read in a previously reconstructed array, corresponding to the |
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18 | * requested parameters, or in the filename given by reconFile. |
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19 | * Performs various tests to make sure there are no clashes between the requested |
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20 | * parameters and those stored in the header of the FITS file. Also test to |
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21 | * make sure that the size (and subsection, if applicable) of the array is the same. |
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22 | */ |
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23 | |
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24 | |
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25 | int status = 0; |
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26 | |
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27 | // Check to see whether the parameters reconFile and/or residFile are defined. |
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28 | bool reconGood = false; |
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29 | int exists; |
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30 | if(this->par.getReconFile() != ""){ |
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31 | reconGood = true; |
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32 | fits_file_exists(this->par.getReconFile().c_str(),&exists,&status); |
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33 | if(exists<=0){ |
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34 | fits_report_error(stderr, status); |
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35 | std::stringstream errmsg; |
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36 | errmsg<< "Cannot find requested ReconFile. Trying with parameters.\n" |
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37 | << "Bad reconFile was: "<<this->par.getReconFile() << std::endl; |
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38 | duchampWarning("readReconCube", errmsg.str()); |
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39 | reconGood = false; |
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40 | } |
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41 | } |
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42 | else{ |
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43 | duchampWarning("readReconCube", |
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44 | "ReconFile not specified. Working out name from parameters.\n"); |
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45 | } |
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46 | |
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47 | if(!reconGood){ // if bad, need to look at parameters |
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48 | |
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49 | string reconFile = this->par.outputReconFile(); |
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50 | std::cerr << " : Trying file " << reconFile << std::endl; |
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51 | reconGood = true; |
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52 | fits_file_exists(reconFile.c_str(),&exists,&status); |
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53 | if(exists<=0){ |
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54 | fits_report_error(stderr, status); |
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55 | duchampWarning("readReconCube","ReconFile not present.\n"); |
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56 | reconGood = false; |
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57 | } |
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58 | |
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59 | if(reconGood){ // were able to open this file -- use this, so reset the relevant parameter |
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60 | this->par.setReconFile(reconFile); |
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61 | } |
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62 | else { // if STILL bad, give error message and exit. |
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63 | duchampError("readReconCube","Cannot find reconstructed file.\n"); |
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64 | return FAILURE; |
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65 | } |
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66 | |
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67 | } |
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68 | |
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69 | // if we get to here, reconGood is true (ie. file is open); |
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70 | status=0; |
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71 | fitsfile *fptr; |
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72 | fits_open_file(&fptr,this->par.getReconFile().c_str(),READONLY,&status); |
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73 | short int maxdim=3; |
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74 | long *fpixel = new long[maxdim]; |
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75 | for(int i=0;i<maxdim;i++) fpixel[i]=1; |
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76 | long *dimAxesNew = new long[maxdim]; |
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77 | for(int i=0;i<maxdim;i++) dimAxesNew[i]=1; |
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78 | long nelements; |
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79 | int bitpix,numAxesNew,anynul; |
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80 | |
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81 | status = 0; |
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82 | fits_get_img_param(fptr, maxdim, &bitpix, &numAxesNew, dimAxesNew, &status); |
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83 | if(status){ |
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84 | fits_report_error(stderr, status); |
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85 | return FAILURE; |
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86 | } |
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87 | |
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88 | if(numAxesNew != this->numDim){ |
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89 | std::stringstream errmsg; |
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90 | errmsg << " Reconstructed cube has a different number of axes to original! (" |
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91 | << numAxesNew << " cf. " << this->numDim << ")\n"; |
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92 | duchampError("readReconCube", errmsg.str()); |
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93 | return FAILURE; |
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94 | } |
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95 | |
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96 | for(int i=0;i<numAxesNew;i++){ |
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97 | if(dimAxesNew[i]!=this->axisDim[i]){ |
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98 | std::stringstream errmsg; |
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99 | errmsg << "Reconstructed cube has different axis dimensions to original!\n" |
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100 | << " Axis #" << i+1 << " has size " << dimAxesNew[i] |
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101 | << " cf. " << this->axisDim[i] <<" in original.\n"; |
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102 | duchampError("readReconCube", errmsg.str()); |
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103 | return FAILURE; |
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104 | } |
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105 | } |
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106 | |
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107 | char *comment = new char[80]; |
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108 | |
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109 | if(this->par.getFlagSubsection()){ |
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110 | char *subsection = new char[80]; |
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111 | status = 0; |
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112 | fits_read_key(fptr, TSTRING, (char *)keyword_subsection.c_str(), subsection, comment, &status); |
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113 | if(status){ |
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114 | duchampError("readReconCube", "subsection keyword not present in reconFile.\n"); |
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115 | return FAILURE; |
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116 | } |
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117 | else{ |
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118 | if(this->par.getSubsection() != subsection){ |
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119 | std::stringstream errmsg; |
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120 | errmsg << "subsection keyword in reconFile (" << subsection |
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121 | << ") does not match that requested (" << this->par.getSubsection() |
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122 | << ").\n"; |
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123 | duchampError("readReconCube", errmsg.str()); |
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124 | return FAILURE; |
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125 | } |
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126 | } |
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127 | delete subsection; |
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128 | } |
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129 | |
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130 | int scaleMin,filterCode,reconDim; |
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131 | float snrRecon; |
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132 | status = 0; |
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133 | fits_read_key(fptr, TINT, (char *)keyword_reconDim.c_str(), &reconDim, comment, &status); |
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134 | if(reconDim != this->par.getReconDim()){ |
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135 | std::stringstream errmsg; |
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136 | errmsg << "reconDim keyword in reconFile (" << reconDim |
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137 | << ") does not match that requested (" << this->par.getReconDim() << ").\n"; |
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138 | duchampError("readReconCube", errmsg.str()); |
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139 | return FAILURE; |
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140 | } |
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141 | status = 0; |
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142 | fits_read_key(fptr, TINT, (char *)keyword_filterCode.c_str(), &filterCode, comment, &status); |
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143 | if(filterCode != this->par.getFilterCode()){ |
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144 | std::stringstream errmsg; |
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145 | errmsg << "filterCode keyword in reconFile (" << filterCode |
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146 | << ") does not match that requested (" << this->par.getFilterCode() << ").\n"; |
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147 | duchampError("readReconCube", errmsg.str()); |
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148 | return FAILURE; |
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149 | } |
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150 | status = 0; |
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151 | fits_read_key(fptr, TFLOAT, (char *)keyword_snrRecon.c_str(), &snrRecon, comment, &status); |
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152 | if(snrRecon != this->par.getAtrousCut()){ |
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153 | std::stringstream errmsg; |
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154 | errmsg << "snrRecon keyword in reconFile (" << snrRecon |
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155 | << ") does not match that requested (" << this->par.getAtrousCut() << ").\n"; |
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156 | duchampError("readReconCube", errmsg.str()); |
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157 | return FAILURE; |
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158 | } |
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159 | status = 0; |
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160 | fits_read_key(fptr, TINT, (char *)keyword_scaleMin.c_str(), &scaleMin, comment, &status); |
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161 | if(scaleMin != this->par.getMinScale()){ |
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162 | std::stringstream errmsg; |
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163 | errmsg << "scaleMin keyword in reconFile (" << scaleMin |
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164 | << ") does not match that requested (" << this->par.getMinScale() << ").\n"; |
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165 | duchampError("readReconCube", errmsg.str()); |
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166 | return FAILURE; |
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167 | } |
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168 | |
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169 | // |
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170 | // If we get to here, the reconFile exists and matches the atrous parameters the user has requested. |
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171 | // |
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172 | |
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173 | float *reconArray = new float[this->numPixels]; |
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174 | status = 0; |
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175 | fits_read_pix(fptr, TFLOAT, fpixel, this->numPixels, NULL, reconArray, &anynul, &status); |
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176 | this->saveRecon(reconArray,this->numPixels); |
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177 | |
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178 | status = 0; |
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179 | fits_close_file(fptr, &status); |
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180 | if (status){ |
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181 | duchampWarning("readReconCube", "Error closing file: "); |
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182 | fits_report_error(stderr, status); |
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183 | } |
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184 | |
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185 | // We don't want to write out the recon or resid files at the end |
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186 | this->par.setFlagOutputRecon(false); |
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187 | this->par.setFlagOutputResid(false); |
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188 | |
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189 | // The reconstruction is done -- set the appropriate flag |
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190 | this->reconExists = true; |
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191 | |
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192 | return SUCCESS; |
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193 | } |
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