[1123] | 1 | #include <duchamp/FitsIO/ReadExisting.hh> |
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[1095] | 2 | #include <duchamp/duchamp.hh> |
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| 3 | #include <duchamp/Cubes/cubes.hh> |
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| 4 | #include <fitsio.h> |
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| 5 | #include <wcslib/wcsunits.h> |
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| 6 | |
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| 7 | namespace duchamp { |
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| 8 | |
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| 9 | ReadExisting::ReadExisting() |
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| 10 | { |
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| 11 | itsCube = 0; |
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| 12 | itsArray = 0; |
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| 13 | itsFptr = 0; |
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| 14 | } |
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| 15 | |
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| 16 | ReadExisting::ReadExisting(Cube *cube): |
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| 17 | itsCube(cube) |
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| 18 | { |
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| 19 | itsArray = this->itsCube->getRecon(); |
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| 20 | itsFptr = 0; |
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| 21 | } |
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| 22 | |
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| 23 | ReadExisting::ReadExisting(const ReadExisting &other) |
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| 24 | { |
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| 25 | this->operator=(other); |
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| 26 | } |
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| 27 | |
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| 28 | ReadExisting& ReadExisting::operator= (const ReadExisting& other) |
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| 29 | { |
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| 30 | if(this==&other) return *this; |
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| 31 | this->itsCube = other.itsCube; |
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| 32 | this->itsArray = other.itsArray; |
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[1119] | 33 | this->itsFilename = other.itsFilename; |
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| 34 | this->itsFptr = other.itsFptr; |
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[1095] | 35 | return *this; |
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| 36 | } |
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| 37 | |
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| 38 | OUTCOME ReadExisting::openFile() |
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| 39 | { |
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| 40 | int status=0; |
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| 41 | fits_open_file(&this->itsFptr,this->itsFilename.c_str(),READONLY,&status); |
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| 42 | if(status){ |
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| 43 | DUCHAMPWARN("Reading Cube", "Error opening file " << this->itsFilename); |
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| 44 | fits_report_error(stderr, status); |
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| 45 | return FAILURE; |
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| 46 | } |
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| 47 | return SUCCESS; |
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| 48 | } |
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| 49 | |
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| 50 | OUTCOME ReadExisting::checkDim() |
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| 51 | { |
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| 52 | OUTCOME result=SUCCESS; |
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| 53 | if(this->itsFptr==0){ |
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| 54 | DUCHAMPERROR("Reading Cube","FITS file not open"); |
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| 55 | result = FAILURE; |
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| 56 | } |
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| 57 | else{ |
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| 58 | |
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| 59 | int status = 0, maxdim = 3; |
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[1111] | 60 | int bitpix,numAxesNew; |
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[1095] | 61 | long *dimAxesNew = new long[maxdim]; |
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| 62 | for(int i=0;i<maxdim;i++) dimAxesNew[i]=1; |
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| 63 | fits_get_img_param(this->itsFptr, maxdim, &bitpix, &numAxesNew, dimAxesNew, &status); |
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| 64 | if(status){ |
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| 65 | fits_report_error(stderr, status); |
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| 66 | result = FAILURE; |
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| 67 | } |
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| 68 | |
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| 69 | if(numAxesNew != this->itsCube->getNumDim()){ |
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[1163] | 70 | DUCHAMPERROR("Reading Cube", "Input cube " << this->itsFilename << " has a different number of axes to original!" |
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[1095] | 71 | << " (" << numAxesNew << " cf. " << this->itsCube->getNumDim() << ")"); |
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| 72 | result = FAILURE; |
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| 73 | } |
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| 74 | |
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| 75 | for(int i=0;i<numAxesNew;i++){ |
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| 76 | if(dimAxesNew[i]!=int(this->itsCube->getDimArray()[i])){ |
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[1163] | 77 | DUCHAMPERROR("Reading Cube", "Input cube " << this->itsFilename << " has different axis dimensions to original! Axis #" |
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[1095] | 78 | << i+1 << " has size " << dimAxesNew[i] << " cf. " << this->itsCube->getDimArray()[i] <<" in original."); |
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| 79 | result = 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 | char *comment = new char[80]; |
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| 85 | if(this->itsCube->pars().getFlagSubsection()){ |
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| 86 | char *subsection = new char[80]; |
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| 87 | status = 0; |
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| 88 | fits_read_key(this->itsFptr, TSTRING, (char *)keyword_subsection.c_str(), subsection, comment, &status); |
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| 89 | if(status){ |
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[1163] | 90 | DUCHAMPERROR("Reading Cube", "subsection keyword not present in reconFile."); |
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[1095] | 91 | result = FAILURE; |
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| 92 | } |
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| 93 | else{ |
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| 94 | if(this->itsCube->pars().getSubsection() != subsection){ |
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[1163] | 95 | DUCHAMPERROR("Reading Cube", "subsection keyword in reconFile (" << subsection |
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[1095] | 96 | << ") does not match that requested (" << this->itsCube->pars().getSubsection() << ")."); |
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| 97 | result = FAILURE; |
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| 98 | } |
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| 99 | } |
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[1433] | 100 | delete [] subsection; |
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[1095] | 101 | } |
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| 102 | |
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[1111] | 103 | } |
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[1095] | 104 | |
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[1111] | 105 | return result; |
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| 106 | |
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[1095] | 107 | } |
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| 108 | |
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| 109 | OUTCOME ReadExisting::readFromFile() |
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| 110 | { |
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| 111 | OUTCOME result=SUCCESS; |
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| 112 | if(this->itsFptr==0){ |
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| 113 | DUCHAMPERROR("Reading Cube","FITS file not open"); |
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| 114 | result = FAILURE; |
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| 115 | } |
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| 116 | else{ |
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| 117 | |
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| 118 | short int maxdim=3; |
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| 119 | long *fpixel = new long[maxdim]; |
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| 120 | for(int i=0;i<maxdim;i++) fpixel[i]=1; |
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| 121 | long *lpixel = new long[maxdim]; |
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| 122 | for(int i=0;i<maxdim;i++) lpixel[i]=this->itsCube->getDimArray()[i]; |
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| 123 | long *inc = new long[maxdim]; |
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| 124 | for(int i=0;i<maxdim;i++) inc[i]=1; |
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| 125 | long *dimAxesNew = new long[maxdim]; |
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| 126 | for(int i=0;i<maxdim;i++) dimAxesNew[i]=this->itsCube->getDimArray()[i]; |
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[1111] | 127 | int anynul; |
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[1095] | 128 | int colnum = 0; // want the first dataset in the FITS file |
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| 129 | int status = 0; |
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| 130 | |
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| 131 | if(fits_read_subset_flt(this->itsFptr, colnum, 3, dimAxesNew, fpixel, lpixel, inc, |
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| 132 | this->itsCube->pars().getBlankPixVal(), this->itsArray, &anynul, &status)){ |
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| 133 | DUCHAMPERROR("Recon Reader", "There was an error reading in the data array:"); |
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| 134 | fits_report_error(stderr, status); |
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| 135 | result = FAILURE; |
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| 136 | } |
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| 137 | else{ |
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| 138 | this->itsCube->setReconFlag(true); |
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| 139 | |
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| 140 | std::string header("BUNIT"); |
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| 141 | char *unit = new char[FLEN_VALUE]; |
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| 142 | char *comment = new char[80]; |
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| 143 | std::string fluxunits; |
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| 144 | fits_read_key(this->itsFptr, TSTRING, (char *)header.c_str(), unit, comment, &status); |
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| 145 | if (status){ |
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| 146 | DUCHAMPWARN("Cube Reader","Error reading BUNIT keyword: "); |
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| 147 | fits_report_error(stderr, status); |
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| 148 | return FAILURE; |
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| 149 | } |
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| 150 | else{ |
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| 151 | wcsutrn(0,unit); |
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| 152 | fluxunits = unit; |
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| 153 | } |
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| 154 | this->itsCube->convertFluxUnits(fluxunits,this->itsCube->pars().getNewFluxUnits(),RECON); |
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| 155 | } |
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| 156 | |
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| 157 | } |
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| 158 | return result; |
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| 159 | } |
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| 160 | |
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| 161 | OUTCOME ReadExisting::read() |
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| 162 | { |
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| 163 | OUTCOME result = this->checkPars(); |
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| 164 | if(result==SUCCESS) result=this->checkFile(); |
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| 165 | if(result==SUCCESS) result=this->openFile(); |
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| 166 | if(result==SUCCESS) result=this->checkDim(); |
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| 167 | if(result==SUCCESS) result=this->checkHeaders(); |
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| 168 | if(result==SUCCESS) result=this->readFromFile(); |
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| 169 | if(result==SUCCESS) result=this->closeFile(); |
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| 170 | return result; |
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| 171 | } |
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| 172 | |
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| 173 | OUTCOME ReadExisting::closeFile() |
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| 174 | { |
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| 175 | OUTCOME result=SUCCESS; |
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| 176 | int status = 0; |
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| 177 | if(this->itsFptr==0){ |
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| 178 | fits_close_file(this->itsFptr, &status); |
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| 179 | if (status){ |
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| 180 | DUCHAMPWARN("Reading Cube", "Error closing file " << this->itsFilename); |
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| 181 | fits_report_error(stderr, status); |
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| 182 | result=FAILURE; |
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| 183 | } |
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| 184 | } |
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| 185 | return result; |
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| 186 | } |
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| 187 | |
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| 188 | } |
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