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 to 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::readSmoothCube() |
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13 | { |
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14 | /** |
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15 | * Cube::readSmoothCube() |
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16 | * |
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17 | * A way to read in a previously Hanning-smoothed array, corresponding |
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18 | * to the requested parameters, or in the filename given by smoothFile. |
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19 | * Performs various tests to make sure there are no clashes between |
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20 | * the requested parameters and those stored in the header of the |
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21 | * FITS file. Also test to make sure that the size (and subsection, |
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22 | * if applicable) of the array is the same. |
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23 | */ |
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24 | |
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25 | |
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26 | int status = 0; |
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27 | |
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28 | if(!this->par.getFlagSmoothExists()){ |
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29 | duchampWarning("readSmoothCube", |
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30 | "flagSmoothExists is not set. Not reading anything in!\n"); |
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31 | return FAILURE; |
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32 | } |
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33 | else if(!this->par.getFlagSmooth()){ |
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34 | duchampWarning("readSmoothCube", |
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35 | "flagSmooth is not set. Don't need to read in smoothed array!\n"); |
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36 | return FAILURE; |
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37 | } |
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38 | else { |
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39 | |
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40 | // Check to see whether the parameter smoothFile is defined |
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41 | bool smoothGood = false; |
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42 | int exists; |
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43 | std::stringstream errmsg; |
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44 | if(this->par.getSmoothFile() != ""){ |
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45 | smoothGood = true; |
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46 | fits_file_exists(this->par.getSmoothFile().c_str(),&exists,&status); |
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47 | if(exists<=0){ |
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48 | fits_report_error(stderr, status); |
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49 | errmsg<< "Cannot find requested SmoothFile. Trying with parameters.\n" |
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50 | << "Bad smoothFile was: "<<this->par.getSmoothFile() <<std::endl; |
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51 | duchampWarning("readSmoothCube", errmsg.str()); |
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52 | smoothGood = false; |
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53 | } |
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54 | } |
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55 | else{ |
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56 | errmsg<< "SmoothFile not specified. Working out name from parameters.\n"; |
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57 | } |
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58 | |
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59 | if(!smoothGood){ // if bad, need to look at parameters |
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60 | |
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61 | string smoothFile = this->par.outputSmoothFile(); |
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62 | errmsg << "Trying file " << smoothFile << std::endl; |
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63 | duchampWarning("readSmoothCube", errmsg.str() ); |
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64 | smoothGood = true; |
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65 | fits_file_exists(smoothFile.c_str(),&exists,&status); |
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66 | if(exists<=0){ |
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67 | fits_report_error(stderr, status); |
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68 | duchampWarning("readSmoothCube","SmoothFile not present.\n"); |
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69 | smoothGood = false; |
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70 | } |
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71 | |
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72 | if(smoothGood){ |
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73 | // were able to open this new file -- use this, so reset the |
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74 | // relevant parameter |
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75 | this->par.setSmoothFile(smoothFile); |
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76 | } |
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77 | else { // if STILL bad, give error message and exit. |
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78 | duchampError("readSmoothCube","Cannot find Hanning-smoothed file.\n"); |
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79 | return FAILURE; |
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80 | } |
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81 | |
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82 | } |
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83 | |
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84 | // if we get to here, smoothGood is true (ie. file is open); |
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85 | |
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86 | status=0; |
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87 | fitsfile *fptr; |
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88 | fits_open_file(&fptr,this->par.getSmoothFile().c_str(),READONLY,&status); |
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89 | short int maxdim=3; |
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90 | long *fpixel = new long[maxdim]; |
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91 | for(int i=0;i<maxdim;i++) fpixel[i]=1; |
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92 | long *dimAxesNew = new long[maxdim]; |
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93 | for(int i=0;i<maxdim;i++) dimAxesNew[i]=1; |
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94 | long nelements; |
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95 | int bitpix,numAxesNew,anynul; |
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96 | |
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97 | status = 0; |
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98 | fits_get_img_param(fptr, maxdim, &bitpix, &numAxesNew, dimAxesNew, &status); |
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99 | if(status){ |
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100 | fits_report_error(stderr, status); |
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101 | return FAILURE; |
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102 | } |
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103 | |
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104 | if(numAxesNew != this->numDim){ |
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105 | std::stringstream errmsg; |
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106 | errmsg << "Smoothed cube has a different number of axes to original!" |
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107 | << " (" << numAxesNew << " cf. " << this->numDim << ")\n"; |
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108 | duchampError("readSmoothCube", errmsg.str()); |
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109 | return FAILURE; |
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110 | } |
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111 | |
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112 | for(int i=0;i<numAxesNew;i++){ |
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113 | if(dimAxesNew[i]!=this->axisDim[i]){ |
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114 | std::stringstream errmsg; |
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115 | errmsg << "Smoothed cube has different axis dimensions to original!" |
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116 | << "\nAxis #" << i+1 << " has size " << dimAxesNew[i] |
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117 | << " cf. " << this->axisDim[i] <<" in original.\n"; |
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118 | duchampError("readSmoothCube", errmsg.str()); |
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119 | return FAILURE; |
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120 | } |
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121 | } |
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122 | |
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123 | char *comment = new char[80]; |
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124 | |
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125 | if(this->par.getFlagSubsection()){ |
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126 | char *subsection = new char[80]; |
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127 | status = 0; |
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128 | fits_read_key(fptr, TSTRING, (char *)keyword_subsection.c_str(), |
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129 | subsection, comment, &status); |
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130 | if(status){ |
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131 | duchampError("readSmoothCube", |
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132 | "subsection keyword not present in smoothFile.\n"); |
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133 | return FAILURE; |
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134 | } |
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135 | else{ |
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136 | if(this->par.getSubsection() != subsection){ |
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137 | std::stringstream errmsg; |
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138 | errmsg << "subsection keyword in smoothFile (" << subsection |
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139 | << ") does not match that requested (" |
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140 | << this->par.getSubsection() << ").\n"; |
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141 | duchampError("readSmoothCube", errmsg.str()); |
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142 | return FAILURE; |
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143 | } |
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144 | } |
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145 | delete subsection; |
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146 | } |
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147 | |
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148 | int hannWidth; |
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149 | status = 0; |
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150 | fits_read_key(fptr, TINT, (char *)keyword_hanningwidth.c_str(), |
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151 | &hannWidth, comment, &status); |
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152 | if(hannWidth != this->par.getHanningWidth()){ |
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153 | std::stringstream errmsg; |
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154 | errmsg << "hanningWidth keyword in smoothFile (" << hannWidth |
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155 | << ") does not match that requested (" |
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156 | << this->par.getHanningWidth() << ").\n"; |
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157 | duchampError("readSmoothCube", errmsg.str()); |
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158 | return FAILURE; |
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159 | } |
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160 | |
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161 | // |
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162 | // If we get to here, the smoothFile exists and the hanningWidth |
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163 | // parameter matches that requested. |
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164 | |
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165 | status = 0; |
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166 | fits_read_pix(fptr, TFLOAT, fpixel, this->numPixels, NULL, |
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167 | this->recon, &anynul, &status); |
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168 | |
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169 | status = 0; |
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170 | fits_close_file(fptr, &status); |
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171 | if (status){ |
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172 | duchampWarning("readSmoothCube", "Error closing file: "); |
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173 | fits_report_error(stderr, status); |
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174 | } |
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175 | |
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176 | // We don't want to write out the smoothed files at the end |
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177 | this->par.setFlagOutputSmooth(false); |
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178 | |
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179 | // The reconstruction is done -- set the appropriate flag |
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180 | this->reconExists = true; |
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181 | |
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182 | return SUCCESS; |
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183 | } |
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184 | } |
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