[299] | 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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[208] | 28 | #include <iostream> |
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| 29 | #include <sstream> |
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| 30 | #include <string> |
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| 31 | #include <wcs.h> |
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| 32 | #include <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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[393] | 36 | #include <duchamp/duchamp.hh> |
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| 37 | #include <duchamp/Cubes/cubes.hh> |
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[208] | 38 | |
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[378] | 39 | namespace duchamp |
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[208] | 40 | { |
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| 41 | |
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[378] | 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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[208] | 52 | |
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| 53 | |
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[378] | 54 | int status = 0; |
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[208] | 55 | |
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[378] | 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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[208] | 60 | } |
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[378] | 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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[208] | 65 | } |
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[378] | 66 | else { |
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[208] | 67 | |
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[378] | 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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[208] | 71 | |
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[378] | 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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[208] | 86 | } |
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[378] | 87 | else{ |
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| 88 | errmsg<< "SmoothFile not specified. Working out name from parameters.\n"; |
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[208] | 89 | } |
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[378] | 90 | |
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| 91 | if(!smoothGood){ // if bad, need to look at parameters |
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[208] | 92 | |
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[378] | 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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[208] | 103 | |
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[378] | 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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[208] | 113 | |
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[378] | 114 | } |
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[208] | 115 | |
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[378] | 116 | // if we get to here, smoothGood is true (ie. file is open); |
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[208] | 117 | |
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[378] | 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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[208] | 127 | |
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[378] | 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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[208] | 136 | std::stringstream errmsg; |
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[378] | 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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[208] | 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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[378] | 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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[208] | 153 | |
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[378] | 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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[208] | 177 | } |
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[378] | 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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[208] | 186 | std::stringstream errmsg; |
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[378] | 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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[208] | 190 | duchampError("readSmoothCube", errmsg.str()); |
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| 191 | return FAILURE; |
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| 192 | } |
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[378] | 193 | |
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[208] | 194 | } |
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[378] | 195 | else if(this->par.getSmoothType()=="spatial"){ |
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[208] | 196 | |
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[378] | 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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[277] | 231 | |
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| 232 | } |
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| 233 | |
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[378] | 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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[208] | 237 | |
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[277] | 238 | status = 0; |
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[378] | 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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[277] | 242 | status = 0; |
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[378] | 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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[277] | 247 | } |
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| 248 | |
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[378] | 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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[277] | 251 | |
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[378] | 252 | // The reconstruction is done -- set the appropriate flag |
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| 253 | this->reconExists = true; |
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[208] | 254 | |
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[378] | 255 | return SUCCESS; |
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[208] | 256 | } |
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[378] | 257 | } |
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[208] | 258 | |
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| 259 | } |
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