1 | // ----------------------------------------------------------------------- |
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2 | // readSmooth.cc: Read in an existing smoothed 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::readSmoothCube() |
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43 | { |
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44 | /** |
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45 | * A way to read in a previously smoothed array, corresponding |
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46 | * to the requested parameters, or in the filename given by smoothFile. |
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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.getFlagSmoothExists()){ |
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57 | duchampWarning("readSmoothCube", |
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58 | "flagSmoothExists 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.getFlagSmooth()){ |
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62 | duchampWarning("readSmoothCube", |
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63 | "flagSmooth is not set. Don't need to read in smoothed 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 | // if kernMin is negative (not defined), make it equal to kernMaj |
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69 | if(this->par.getKernMin() < 0) |
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70 | this->par.setKernMin(this->par.getKernMaj()); |
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71 | |
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72 | // Check to see whether the parameter smoothFile is defined |
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73 | bool smoothGood = false; |
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74 | int exists; |
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75 | std::stringstream errmsg; |
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76 | if(this->par.getSmoothFile() != ""){ |
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77 | smoothGood = true; |
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78 | fits_file_exists(this->par.getSmoothFile().c_str(),&exists,&status); |
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79 | if(exists<=0){ |
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80 | fits_report_error(stderr, status); |
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81 | errmsg<< "Cannot find requested SmoothFile. Trying with parameters.\n" |
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82 | << "Bad smoothFile was: "<<this->par.getSmoothFile() <<std::endl; |
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83 | duchampWarning("readSmoothCube", errmsg.str()); |
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84 | smoothGood = false; |
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85 | } |
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86 | } |
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87 | else{ |
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88 | errmsg<< "SmoothFile not specified. Working out name from parameters.\n"; |
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89 | } |
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90 | |
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91 | if(!smoothGood){ // if bad, need to look at parameters |
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92 | |
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93 | std::string smoothFile = this->par.outputSmoothFile(); |
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94 | errmsg << "Trying file " << smoothFile << std::endl; |
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95 | duchampWarning("readSmoothCube", errmsg.str() ); |
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96 | smoothGood = true; |
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97 | fits_file_exists(smoothFile.c_str(),&exists,&status); |
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98 | if(exists<=0){ |
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99 | fits_report_error(stderr, status); |
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100 | // duchampWarning("readSmoothCube","SmoothFile not present.\n"); |
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101 | smoothGood = false; |
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102 | } |
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103 | |
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104 | if(smoothGood){ |
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105 | // were able to open this new file -- use this, so reset the |
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106 | // relevant parameter |
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107 | this->par.setSmoothFile(smoothFile); |
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108 | } |
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109 | else { // if STILL bad, give error message and exit. |
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110 | duchampError("readSmoothCube","Cannot find Smoothed file.\n"); |
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111 | return FAILURE; |
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112 | } |
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113 | |
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114 | } |
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115 | |
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116 | // if we get to here, smoothGood is true (ie. file is open); |
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117 | |
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118 | status=0; |
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119 | fitsfile *fptr; |
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120 | fits_open_file(&fptr,this->par.getSmoothFile().c_str(),READONLY,&status); |
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121 | short int maxdim=3; |
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122 | long *fpixel = new long[maxdim]; |
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123 | for(int i=0;i<maxdim;i++) fpixel[i]=1; |
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124 | long *dimAxesNew = new long[maxdim]; |
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125 | for(int i=0;i<maxdim;i++) dimAxesNew[i]=1; |
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126 | int bitpix,numAxesNew,anynul; |
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127 | |
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128 | status = 0; |
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129 | fits_get_img_param(fptr,maxdim,&bitpix,&numAxesNew,dimAxesNew,&status); |
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130 | if(status){ |
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131 | fits_report_error(stderr, status); |
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132 | return FAILURE; |
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133 | } |
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134 | |
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135 | if(numAxesNew != this->numDim){ |
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136 | std::stringstream errmsg; |
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137 | errmsg << "Smoothed cube has a different number of axes to original!" |
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138 | << " (" << numAxesNew << " cf. " << this->numDim << ")\n"; |
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139 | duchampError("readSmoothCube", errmsg.str()); |
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140 | return FAILURE; |
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141 | } |
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142 | |
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143 | for(int i=0;i<numAxesNew;i++){ |
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144 | if(dimAxesNew[i]!=this->axisDim[i]){ |
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145 | std::stringstream errmsg; |
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146 | errmsg << "Smoothed cube has different axis dimensions to original!" |
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147 | << "\nAxis #" << i+1 << " has size " << dimAxesNew[i] |
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148 | << " cf. " << this->axisDim[i] <<" in original.\n"; |
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149 | duchampError("readSmoothCube", errmsg.str()); |
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150 | return FAILURE; |
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151 | } |
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152 | } |
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153 | |
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154 | char *comment = new char[80]; |
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155 | |
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156 | if(this->par.getFlagSubsection()){ |
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157 | char *subsection = new char[80]; |
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158 | status = 0; |
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159 | fits_read_key(fptr, TSTRING, (char *)keyword_subsection.c_str(), |
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160 | subsection, comment, &status); |
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161 | if(status){ |
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162 | duchampError("readSmoothCube", |
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163 | "subsection keyword not present in smoothFile.\n"); |
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164 | return FAILURE; |
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165 | } |
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166 | else{ |
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167 | if(this->par.getSubsection() != subsection){ |
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168 | std::stringstream errmsg; |
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169 | errmsg << "subsection keyword in smoothFile (" << subsection |
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170 | << ") does not match that requested (" |
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171 | << this->par.getSubsection() << ").\n"; |
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172 | duchampError("readSmoothCube", errmsg.str()); |
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173 | return FAILURE; |
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174 | } |
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175 | } |
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176 | delete subsection; |
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177 | } |
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178 | |
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179 | if(this->par.getSmoothType()=="spectral"){ |
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180 | |
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181 | int hannWidth; |
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182 | status = 0; |
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183 | fits_read_key(fptr, TINT, (char *)keyword_hanningwidth.c_str(), |
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184 | &hannWidth, comment, &status); |
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185 | if(hannWidth != this->par.getHanningWidth()){ |
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186 | std::stringstream errmsg; |
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187 | errmsg << keyword_hanningwidth << " keyword in smoothFile (" |
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188 | << hannWidth << ") does not match the hanningWidth parameter (" |
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189 | << this->par.getHanningWidth() << ").\n"; |
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190 | duchampError("readSmoothCube", errmsg.str()); |
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191 | return FAILURE; |
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192 | } |
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193 | |
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194 | } |
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195 | else if(this->par.getSmoothType()=="spatial"){ |
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196 | |
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197 | float maj,min,pa; |
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198 | status = 0; |
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199 | fits_read_key(fptr, TFLOAT, (char *)keyword_kernmaj.c_str(), |
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200 | &maj, comment, &status); |
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201 | if(maj != this->par.getKernMaj()){ |
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202 | std::stringstream errmsg; |
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203 | errmsg << keyword_kernmaj << " keyword in smoothFile (" |
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204 | << maj << ") does not match the kernMaj parameter (" |
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205 | << this->par.getKernMaj() << ").\n"; |
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206 | duchampError("readSmoothCube", errmsg.str()); |
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207 | return FAILURE; |
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208 | } |
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209 | status = 0; |
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210 | fits_read_key(fptr, TFLOAT, (char *)keyword_kernmin.c_str(), |
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211 | &min, comment, &status); |
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212 | if(min != this->par.getKernMin()){ |
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213 | std::stringstream errmsg; |
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214 | errmsg << keyword_kernmin << " keyword in smoothFile (" |
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215 | << maj << ") does not match the kernMin parameter (" |
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216 | << this->par.getKernMin() << ").\n"; |
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217 | duchampError("readSmoothCube", errmsg.str()); |
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218 | return FAILURE; |
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219 | } |
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220 | status = 0; |
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221 | fits_read_key(fptr, TFLOAT, (char *)keyword_kernpa.c_str(), |
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222 | &pa, comment, &status); |
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223 | if(pa != this->par.getKernPA()){ |
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224 | std::stringstream errmsg; |
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225 | errmsg << keyword_kernpa << " keyword in smoothFile (" |
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226 | << maj << ") does not match the kernPA parameter (" |
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227 | << this->par.getKernPA() << ").\n"; |
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228 | duchampError("readSmoothCube", errmsg.str()); |
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229 | return FAILURE; |
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230 | } |
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231 | |
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232 | } |
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233 | |
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234 | // |
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235 | // If we get to here, the smoothFile exists and the smoothing |
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236 | // parameters match those requested. |
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237 | |
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238 | status = 0; |
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239 | fits_read_pix(fptr, TFLOAT, fpixel, this->numPixels, NULL, |
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240 | this->recon, &anynul, &status); |
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241 | |
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242 | status = 0; |
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243 | fits_close_file(fptr, &status); |
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244 | if (status){ |
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245 | duchampWarning("readSmoothCube", "Error closing file: "); |
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246 | fits_report_error(stderr, status); |
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247 | } |
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248 | |
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249 | // We don't want to write out the smoothed files at the end |
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250 | this->par.setFlagOutputSmooth(false); |
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251 | |
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252 | // The reconstruction is done -- set the appropriate flag |
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253 | this->reconExists = true; |
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254 | |
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255 | return SUCCESS; |
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256 | } |
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257 | } |
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258 | |
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259 | } |
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