[208] | 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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