[299] | 1 | // ----------------------------------------------------------------------- |
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| 2 | // plotting.cc: Plot the moment map and detection maps, showing the |
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| 3 | // location of the detected objects. |
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| 4 | // ----------------------------------------------------------------------- |
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| 5 | // Copyright (C) 2006, Matthew Whiting, ATNF |
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| 6 | // |
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| 7 | // This program is free software; you can redistribute it and/or modify it |
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| 8 | // under the terms of the GNU General Public License as published by the |
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| 9 | // Free Software Foundation; either version 2 of the License, or (at your |
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| 10 | // option) any later version. |
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| 11 | // |
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| 12 | // Duchamp is distributed in the hope that it will be useful, but WITHOUT |
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| 13 | // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 14 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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| 15 | // for more details. |
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| 16 | // |
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| 17 | // You should have received a copy of the GNU General Public License |
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| 18 | // along with Duchamp; if not, write to the Free Software Foundation, |
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| 19 | // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA |
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| 20 | // |
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| 21 | // Correspondence concerning Duchamp may be directed to: |
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| 22 | // Internet email: Matthew.Whiting [at] atnf.csiro.au |
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| 23 | // Postal address: Dr. Matthew Whiting |
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| 24 | // Australia Telescope National Facility, CSIRO |
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| 25 | // PO Box 76 |
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| 26 | // Epping NSW 1710 |
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| 27 | // AUSTRALIA |
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| 28 | // ----------------------------------------------------------------------- |
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[3] | 29 | #include <iostream> |
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| 30 | #include <iomanip> |
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| 31 | #include <sstream> |
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| 32 | #include <math.h> |
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[656] | 33 | #include <string.h> |
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[3] | 34 | #include <cpgplot.h> |
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[401] | 35 | #include <wcslib/cpgsbox.h> |
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| 36 | #include <wcslib/pgwcsl.h> |
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[394] | 37 | #include <wcslib/wcs.h> |
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[393] | 38 | #include <duchamp/duchamp.hh> |
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| 39 | #include <duchamp/param.hh> |
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| 40 | #include <duchamp/fitsHeader.hh> |
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| 41 | #include <duchamp/PixelMap/Object3D.hh> |
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| 42 | #include <duchamp/Cubes/cubes.hh> |
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[463] | 43 | #include <duchamp/Cubes/cubeUtils.hh> |
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[1242] | 44 | #include <duchamp/Plotting/SpectralPlot.hh> |
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| 45 | #include <duchamp/Plotting/SimpleSpectralPlot.hh> |
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| 46 | #include <duchamp/Plotting/ImagePlot.hh> |
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[393] | 47 | #include <duchamp/Utils/utils.hh> |
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| 48 | #include <duchamp/Utils/mycpgplot.hh> |
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[3] | 49 | |
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[146] | 50 | using namespace mycpgplot; |
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[258] | 51 | using namespace PixelInfo; |
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[3] | 52 | |
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[378] | 53 | namespace duchamp |
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| 54 | { |
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| 55 | |
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[581] | 56 | void Cube::plotDetectionMap(std::string pgDestination) |
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| 57 | { |
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| 58 | /// @details |
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| 59 | /// Creates a map of the spatial locations of the detections, which is |
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| 60 | /// written to the PGPlot device given by pgDestination. |
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| 61 | /// The map is done in greyscale, where the scale indicates the number of |
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| 62 | /// velocity channels that each spatial pixel is detected in. |
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| 63 | /// The boundaries of each detection are drawn, and each object is numbered |
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| 64 | /// (to match the output list and spectra). |
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| 65 | /// The primary grid scale is pixel coordinate, and if the WCS is valid, |
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| 66 | /// the correct WCS gridlines are also drawn. |
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| 67 | /// \param pgDestination The PGPLOT device to be opened, in the typical PGPLOT format. |
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[3] | 68 | |
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[581] | 69 | // These are the minimum values for the X and Y ranges of the box drawn by |
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| 70 | // pgplot (without the half-pixel difference). |
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| 71 | // The -1 is necessary because the arrays we are dealing with start at 0 |
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| 72 | // index, while the ranges given in the subsection start at 1... |
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| 73 | float boxXmin = this->par.getXOffset() - 1; |
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| 74 | float boxYmin = this->par.getYOffset() - 1; |
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[3] | 75 | |
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[581] | 76 | long xdim=this->axisDim[0]; |
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| 77 | long ydim=this->axisDim[1]; |
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[985] | 78 | long zdim=this->axisDim[2]; |
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[3] | 79 | |
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[985] | 80 | if( this->numNondegDim == 1){ |
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| 81 | |
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| 82 | float *specx = new float[zdim]; |
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| 83 | float *specy = new float[zdim]; |
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| 84 | float *specy2 = new float[zdim]; |
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| 85 | float *base = new float[zdim]; |
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| 86 | Plot::SimpleSpectralPlot spPlot; |
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| 87 | int flag = spPlot.setUpPlot(pgDestination.c_str()); |
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| 88 | if(flag <= 0){ |
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| 89 | DUCHAMPERROR("Plot Detection Map", "Could not open PGPlot device " << pgDestination); |
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| 90 | } |
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| 91 | else{ |
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| 92 | |
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| 93 | this->getSpectralArrays(-1,specx,specy,specy2,base); |
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| 94 | float vmax,vmin,width; |
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| 95 | vmax = vmin = specx[0]; |
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| 96 | for(int i=1;i<zdim;i++){ |
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| 97 | if(specx[i]>vmax) vmax=specx[i]; |
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| 98 | if(specx[i]<vmin) vmin=specx[i]; |
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| 99 | } |
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| 100 | |
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[1242] | 101 | // Find the maximum & minimum values of the spectrum, ignoring flagged channels. |
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[985] | 102 | float max,min; |
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[1242] | 103 | bool haveStarted=false; |
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| 104 | for(int z=0;z<zdim;z++){ |
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| 105 | if(!this->par.isFlaggedChannel(z)){ |
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[1251] | 106 | if(specy[z]>max || !haveStarted) max=specy[z]; |
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| 107 | if(specy[z]<min || !haveStarted) min=specy[z]; |
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[1242] | 108 | haveStarted=true; |
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[985] | 109 | } |
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| 110 | } |
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[1242] | 111 | |
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[985] | 112 | // widen the ranges slightly so that the top & bottom & edges don't |
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| 113 | // lie on the axes. |
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| 114 | width = max - min; |
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| 115 | max += width * 0.15; |
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| 116 | min -= width * 0.05; |
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| 117 | width = vmax - vmin; |
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| 118 | vmax += width * 0.01; |
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| 119 | vmin -= width * 0.01; |
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| 120 | std::string label,fluxLabel = "Flux ["+this->head.getFluxUnits()+"]"; |
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| 121 | if(this->head.isWCS()){ |
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| 122 | label = this->head.getSpectralDescription() + " [" + |
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| 123 | this->head.getSpectralUnits() + "]"; |
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| 124 | } |
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| 125 | else label="Spectral pixel"; |
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| 126 | std::string filename=this->pars().getImageFile(); |
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| 127 | filename = filename.substr(filename.rfind('/')+1); |
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[1366] | 128 | if(this->par.getFlagSubsection()) filename += this->par.getSubsection(); |
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[985] | 129 | spPlot.label(label,fluxLabel,"Detection summary : " + filename); |
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| 130 | spPlot.gotoMainSpectrum(vmin,vmax,min,max); |
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| 131 | cpgline(zdim,specx,specy); |
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| 132 | if(this->par.getFlagBaseline()){ |
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| 133 | cpgsci(DUCHAMP_BASELINE_SPECTRA_COLOUR); |
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| 134 | cpgline(zdim,specx,base); |
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| 135 | cpgsci(FOREGND); |
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| 136 | } |
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| 137 | if(this->reconExists){ |
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| 138 | cpgsci(DUCHAMP_RECON_SPECTRA_COLOUR); |
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| 139 | cpgline(zdim,specx,specy2); |
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| 140 | cpgsci(FOREGND); |
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| 141 | } |
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[1242] | 142 | this->drawFlaggedChannels(spPlot,0.,0.); |
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[3] | 143 | |
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[1013] | 144 | spPlot.markDetectedPixels(this->detectMap,zdim,this->head); |
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[615] | 145 | |
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[985] | 146 | for(size_t i=0;i<this->getNumObj();i++){ |
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| 147 | drawSpectralRange(spPlot,this->objectList->at(i),this->head); |
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| 148 | } |
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[3] | 149 | |
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[1258] | 150 | if(this->par.getFlagBaseline()) |
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| 151 | spPlot.drawThresholds(this->par,this->Stats,specx,base,zdim); |
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| 152 | else |
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| 153 | spPlot.drawThresholds(this->par,this->Stats); |
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| 154 | |
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| 155 | |
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| 156 | // cpgsci(RED); |
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| 157 | // cpgsls(DASHED); |
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| 158 | // float thresh = this->Stats.getThreshold(); |
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| 159 | // if(this->par.getFlagNegative()) thresh *= -1.; |
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| 160 | // cpgmove(vmin,thresh); |
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| 161 | // cpgdraw(vmax,thresh); |
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| 162 | // if(this->par.getFlagGrowth()){ |
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| 163 | // if(this->par.getFlagUserGrowthThreshold()) thresh= this->par.getGrowthThreshold(); |
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| 164 | // else thresh= this->Stats.snrToValue(this->par.getGrowthCut()); |
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| 165 | // if(this->par.getFlagNegative()) thresh *= -1.; |
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| 166 | // cpgsls(DOTTED); |
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| 167 | // cpgmove(vmin,thresh); |
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| 168 | // cpgdraw(vmax,thresh); |
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| 169 | // } |
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[985] | 170 | } |
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[3] | 171 | |
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[985] | 172 | spPlot.close(); |
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| 173 | } |
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[1104] | 174 | else { // num dim > 1 |
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[3] | 175 | |
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[1242] | 176 | Plot::ImagePlot newplot(xdim,ydim); |
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| 177 | int flag = newplot.setUpPlot(pgDestination); |
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[985] | 178 | |
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| 179 | if(flag<=0){ |
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| 180 | DUCHAMPERROR("Plot Detection Map", "Could not open PGPlot device " << pgDestination); |
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[581] | 181 | } |
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[985] | 182 | else{ |
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[3] | 183 | |
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[985] | 184 | // get the list of objects that should be plotted. Only applies to outlines and labels. |
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| 185 | std::vector<bool> objectChoice = this->par.getObjectChoices(this->objectList->size()); |
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[3] | 186 | |
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[985] | 187 | std::string filename=this->pars().getImageFile(); |
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| 188 | newplot.makeTitle(filename.substr(filename.rfind('/')+1,filename.size())); |
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[204] | 189 | |
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[985] | 190 | newplot.drawMapBox(boxXmin+0.5,boxXmin+xdim+0.5, |
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| 191 | boxYmin+0.5,boxYmin+ydim+0.5, |
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| 192 | "X pixel","Y pixel"); |
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[666] | 193 | |
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[985] | 194 | // if(this->objectList.size()>0){ |
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| 195 | // if there are no detections, there will be nothing to plot here |
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| 196 | |
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| 197 | // Define a float equivalent of this->detectMap that can be plotted by cpggray. |
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| 198 | // Also find the maximum value, so that we can get the greyscale right and plot a colour wedge. |
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| 199 | float *detectionMap = new float[xdim*ydim]; |
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| 200 | int maxNum = this->detectMap[0]; |
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| 201 | detectionMap[0] = float(maxNum); |
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| 202 | for(int pix=1;pix<xdim*ydim;pix++){ |
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| 203 | detectionMap[pix] = float(this->detectMap[pix]); |
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| 204 | if(this->detectMap[pix] > maxNum) maxNum = this->detectMap[pix]; |
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| 205 | } |
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| 206 | |
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| 207 | if(maxNum>0){ // if there are no detections, it will be 0. |
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| 208 | |
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| 209 | maxNum = 5 * ((maxNum-1)/5 + 1); // move to next multiple of 5 |
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| 210 | |
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| 211 | float tr[6] = {boxXmin,1.,0.,boxYmin,0.,1.}; |
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| 212 | cpggray(detectionMap,xdim,ydim,1,xdim,1,ydim,maxNum,0,tr); |
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| 213 | cpgbox("bcnst",0.,0,"bcnst",0.,0); |
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| 214 | cpgsch(1.5); |
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| 215 | cpgwedg("rg",3.2,2,maxNum,0,"Number of detected channels"); |
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| 216 | } |
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| 217 | |
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| 218 | delete [] detectionMap; |
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[208] | 219 | |
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[985] | 220 | drawBlankEdges(this->array,this->axisDim[0],this->axisDim[1],this->par); |
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[208] | 221 | |
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[985] | 222 | if(this->head.isWCS()) this->plotWCSaxes(); |
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[3] | 223 | |
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[985] | 224 | if(this->objectList->size()>0){ |
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| 225 | // now show and label each detection, drawing over the WCS lines. |
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[3] | 226 | |
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[985] | 227 | cpgsch(1.0); |
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| 228 | cpgslw(2); |
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| 229 | float xoff=0.; |
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| 230 | float yoff=newplot.cmToCoord(0.5); |
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| 231 | if(this->par.drawBorders()){ |
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| 232 | cpgsci(DUCHAMP_OBJECT_OUTLINE_COLOUR); |
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| 233 | for(size_t i=0;i<this->objectList->size();i++) |
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| 234 | if(objectChoice[i]) this->objectList->at(i).drawBorders(0,0); |
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[615] | 235 | } |
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[985] | 236 | cpgsci(DUCHAMP_ID_TEXT_COLOUR); |
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| 237 | std::stringstream label; |
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| 238 | cpgslw(1); |
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| 239 | for(size_t i=0;i<this->objectList->size();i++){ |
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| 240 | if(objectChoice[i]) { |
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| 241 | cpgpt1(this->par.getXOffset()+this->objectList->at(i).getXPeak(), |
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| 242 | this->par.getYOffset()+this->objectList->at(i).getYPeak(), |
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| 243 | CROSS); |
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| 244 | label.str(""); |
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| 245 | label << this->objectList->at(i).getID(); |
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| 246 | cpgptxt(this->par.getXOffset()+this->objectList->at(i).getXPeak()-xoff, |
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| 247 | this->par.getYOffset()+this->objectList->at(i).getYPeak()-yoff, |
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| 248 | 0, 0.5, label.str().c_str()); |
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| 249 | } |
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| 250 | } |
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| 251 | |
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[581] | 252 | } |
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| 253 | |
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[985] | 254 | newplot.close(); |
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[103] | 255 | } |
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[3] | 256 | } |
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| 257 | } |
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| 258 | |
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[581] | 259 | /*********************************************************/ |
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[3] | 260 | |
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[581] | 261 | void Cube::plotMomentMap(std::string pgDestination) |
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| 262 | { |
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| 263 | /// @details |
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| 264 | /// Uses the other function |
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| 265 | /// Cube::plotMomentMap(std::vector<std::string>) to plot the moment |
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| 266 | /// map. |
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| 267 | /// \param pgDestination The PGPLOT device that the map is to be written to. |
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[3] | 268 | |
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[581] | 269 | std::vector<std::string> devicelist; |
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| 270 | devicelist.push_back(pgDestination); |
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| 271 | this->plotMomentMap(devicelist); |
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| 272 | } |
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[3] | 273 | |
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[581] | 274 | /*********************************************************/ |
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[3] | 275 | |
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[581] | 276 | void Cube::plotMomentMap(std::vector<std::string> pgDestination) |
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| 277 | { |
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| 278 | /// @details |
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| 279 | /// Creates a 0th moment map of the detections, which is written to each |
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| 280 | /// of the PGPlot devices mentioned in pgDestination. |
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| 281 | /// The advantage of this function is that the map is only calculated once, |
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| 282 | /// even if multiple maps are required. |
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| 283 | /// The map is done in greyscale, where the scale indicates the integrated |
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| 284 | /// flux at each spatial pixel. |
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| 285 | /// The boundaries of each detection are drawn, and each object is numbered |
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| 286 | /// (to match the output list and spectra). |
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| 287 | /// The primary grid scale is pixel coordinate, and if the WCS is valid, |
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| 288 | /// the correct WCS gridlines are also drawn. |
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| 289 | /// \param pgDestination A set of PGPLOT devices that are to be |
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| 290 | /// opened, each in the typical PGPLOT format. |
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[3] | 291 | |
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[581] | 292 | float boxXmin = this->par.getXOffset() - 1; |
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| 293 | float boxYmin = this->par.getYOffset() - 1; |
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[203] | 294 | |
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[581] | 295 | long xdim=this->axisDim[0]; |
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| 296 | long ydim=this->axisDim[1]; |
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[203] | 297 | |
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[581] | 298 | int numPlots = pgDestination.size(); |
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[1242] | 299 | std::vector<Plot::ImagePlot> plotList(numPlots,Plot::ImagePlot(xdim,ydim)); |
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[581] | 300 | std::vector<int> plotFlag(numPlots,0); |
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| 301 | std::vector<bool> doPlot(numPlots,false); |
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| 302 | bool plotNeeded = false; |
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[203] | 303 | |
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[581] | 304 | for(int i=0;i<numPlots;i++){ |
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[203] | 305 | |
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[1242] | 306 | plotFlag[i] = plotList[i].setUpPlot(pgDestination[i]); |
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[203] | 307 | |
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[913] | 308 | if(plotFlag[i]<=0){ |
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| 309 | DUCHAMPERROR("Plot Moment Map", "Could not open PGPlot device " << pgDestination[i]); |
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| 310 | } |
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[581] | 311 | else{ |
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| 312 | doPlot[i] = true; |
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| 313 | plotNeeded = true; |
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| 314 | } |
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| 315 | |
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[203] | 316 | } |
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[485] | 317 | |
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[581] | 318 | if(plotNeeded){ |
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[203] | 319 | |
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[581] | 320 | if(this->objectList->size()==0){ |
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| 321 | // if there are no detections, we plot an empty field. |
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[203] | 322 | |
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[581] | 323 | for(int iplot=0; iplot<numPlots; iplot++){ |
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| 324 | plotList[iplot].goToPlot(); |
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[755] | 325 | std::string filename=this->pars().getImageFile(); |
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| 326 | plotList[iplot].makeTitle(filename.substr(filename.rfind('/')+1,filename.size())); |
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[203] | 327 | |
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[581] | 328 | plotList[iplot].drawMapBox(boxXmin+0.5,boxXmin+xdim+0.5, |
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| 329 | boxYmin+0.5,boxYmin+ydim+0.5, |
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| 330 | "X pixel","Y pixel"); |
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[203] | 331 | |
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[581] | 332 | drawBlankEdges(this->array,this->axisDim[0],this->axisDim[1],this->par); |
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[203] | 333 | |
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[581] | 334 | if(this->head.isWCS()) this->plotWCSaxes(); |
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| 335 | } |
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| 336 | |
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[203] | 337 | } |
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[581] | 338 | else { |
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| 339 | // if there are some detections, do the calculations first before |
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| 340 | // plotting anything. |
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[203] | 341 | |
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[615] | 342 | // get the list of objects that should be plotted. Only applies to outlines and labels. |
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| 343 | std::vector<bool> objectChoice = this->par.getObjectChoices(this->objectList->size()); |
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| 344 | |
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[581] | 345 | for(int iplot=0; iplot<numPlots; iplot++){ |
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| 346 | // Although plot the axes so that the user knows something is |
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| 347 | // being done (at least, they will if there is an /xs plot) |
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| 348 | plotList[iplot].goToPlot(); |
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[755] | 349 | std::string filename=this->pars().getImageFile(); |
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| 350 | plotList[iplot].makeTitle(filename.substr(filename.rfind('/')+1,filename.size())); |
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[203] | 351 | |
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[581] | 352 | plotList[iplot].drawMapBox(boxXmin+0.5,boxXmin+xdim+0.5, |
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| 353 | boxYmin+0.5,boxYmin+ydim+0.5, |
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| 354 | "X pixel","Y pixel"); |
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[203] | 355 | |
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[581] | 356 | if(pgDestination[iplot]=="/xs") |
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| 357 | cpgptxt(boxXmin+0.5+xdim/2., boxYmin+0.5+ydim/2., 0, 0.5, |
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| 358 | "Calculating map..."); |
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| 359 | } |
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[203] | 360 | |
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[668] | 361 | float *momentMap = new float[xdim*ydim]; |
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[665] | 362 | float z1=0.,z2=0.; |
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[668] | 363 | this->getMomentMapForPlot(momentMap,z1,z2); |
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[581] | 364 | |
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[203] | 365 | |
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[581] | 366 | // Have now done all necessary calculations for moment map. |
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| 367 | // Now produce the plot |
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[203] | 368 | |
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[581] | 369 | for(int iplot=0; iplot<numPlots; iplot++){ |
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| 370 | plotList[iplot].goToPlot(); |
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[203] | 371 | |
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[581] | 372 | float tr[6] = {boxXmin,1.,0.,boxYmin,0.,1.}; |
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| 373 | cpggray(momentMap,xdim,ydim,1,xdim,1,ydim,z2,z1,tr); |
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| 374 | cpgbox("bcnst",0.,0,"bcnst",0.,0); |
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| 375 | cpgsch(1.5); |
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| 376 | std::string wedgeLabel = "Integrated Flux "; |
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| 377 | if(this->par.getFlagNegative()) |
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| 378 | wedgeLabel = "-1. " + times + " " + wedgeLabel; |
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| 379 | if(this->head.isWCS()) |
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| 380 | wedgeLabel += "[" + this->head.getIntFluxUnits() + "]"; |
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| 381 | else wedgeLabel += "[" + this->head.getFluxUnits() + "]"; |
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| 382 | cpgwedglog("rg",3.2,2,z2,z1,wedgeLabel.c_str()); |
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[203] | 383 | |
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| 384 | |
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[581] | 385 | drawBlankEdges(this->array,this->axisDim[0],this->axisDim[1],this->par); |
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[203] | 386 | |
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[581] | 387 | if(this->head.isWCS()) this->plotWCSaxes(); |
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[203] | 388 | |
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[581] | 389 | // now show and label each detection, drawing over the WCS lines. |
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| 390 | cpgsch(1.0); |
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| 391 | cpgslw(2); |
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| 392 | float xoff=0.; |
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| 393 | float yoff=plotList[iplot].cmToCoord(0.5); |
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| 394 | if(this->par.drawBorders()){ |
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| 395 | cpgsci(DUCHAMP_OBJECT_OUTLINE_COLOUR); |
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[623] | 396 | for(size_t i=0;i<this->objectList->size();i++) |
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[615] | 397 | if(objectChoice[i]) this->objectList->at(i).drawBorders(0,0); |
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[581] | 398 | } |
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| 399 | cpgsci(DUCHAMP_ID_TEXT_COLOUR); |
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| 400 | std::stringstream label; |
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| 401 | cpgslw(1); |
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[623] | 402 | for(size_t i=0;i<this->objectList->size();i++){ |
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[615] | 403 | if(objectChoice[i]) { |
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| 404 | cpgpt1(this->par.getXOffset()+this->objectList->at(i).getXPeak(), |
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| 405 | this->par.getYOffset()+this->objectList->at(i).getYPeak(), |
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| 406 | CROSS); |
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| 407 | label.str(""); |
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| 408 | label << this->objectList->at(i).getID(); |
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| 409 | cpgptxt(this->par.getXOffset()+this->objectList->at(i).getXPeak()-xoff, |
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| 410 | this->par.getYOffset()+this->objectList->at(i).getYPeak()-yoff, |
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| 411 | 0, 0.5, label.str().c_str()); |
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| 412 | } |
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[581] | 413 | } |
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[203] | 414 | |
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[581] | 415 | } // end of iplot loop over number of devices |
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[203] | 416 | |
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[581] | 417 | delete [] momentMap; |
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[203] | 418 | |
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[581] | 419 | } // end of else (from if(numdetections==0) ) |
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[203] | 420 | |
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| 421 | |
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[581] | 422 | for(int iplot=0; iplot<numPlots; iplot++){ |
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| 423 | plotList[iplot].goToPlot(); |
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[985] | 424 | plotList[iplot].close(); |
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[581] | 425 | } |
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| 426 | |
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[203] | 427 | } |
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[581] | 428 | |
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[203] | 429 | } |
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| 430 | |
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[581] | 431 | /*********************************************************/ |
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[203] | 432 | |
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[998] | 433 | void drawSpectralRange(Plot::SpectralPlot &plot, Detection &obj, FitsHeader &head) |
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| 434 | { |
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| 435 | /// @details |
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| 436 | |
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| 437 | /// A front-end to drawing the lines delimiting the spectral |
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| 438 | /// extent of the detection. This takes into account the channel |
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| 439 | /// widths, offsetting outwards by half a channel (for instance, a |
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| 440 | /// single-channel detection will not have the separation of one |
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| 441 | /// channel). |
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| 442 | /// If the world coordinate is being plotted, the correct offset |
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| 443 | /// is calcuated by transforming from the central spatial |
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| 444 | /// positions and the offsetted min/max z-pixel extents |
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| 445 | |
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| 446 | if(head.isWCS()){ |
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| 447 | double x=obj.getXcentre(),y=obj.getYcentre(),z; |
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| 448 | z=obj.getZmin()-0.5; |
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| 449 | float vmin=head.pixToVel(x,y,z); |
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| 450 | z=obj.getZmax()+0.5; |
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| 451 | float vmax=head.pixToVel(x,y,z); |
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| 452 | plot.drawVelRange(vmin,vmax); |
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| 453 | } |
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| 454 | else{ |
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| 455 | plot.drawVelRange(obj.getZmin()-0.5,obj.getZmax()+0.5); |
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| 456 | } |
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| 457 | |
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| 458 | |
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| 459 | } |
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| 460 | |
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| 461 | void drawSpectralRange(Plot::SimpleSpectralPlot &plot, Detection &obj, FitsHeader &head) |
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| 462 | { |
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| 463 | /// @details |
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| 464 | |
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| 465 | /// A front-end to drawing the lines delimiting the spectral |
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| 466 | /// extent of the detection. This takes into account the channel |
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| 467 | /// widths, offsetting outwards by half a channel (for instance, a |
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| 468 | /// single-channel detection will not have the separation of one |
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| 469 | /// channel). |
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| 470 | /// If the world coordinate is being plotted, the correct offset |
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| 471 | /// is calcuated by transforming from the central spatial |
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| 472 | /// positions and the offsetted min/max z-pixel extents |
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| 473 | |
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| 474 | if(head.isWCS()){ |
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| 475 | double x=obj.getXcentre(),y=obj.getYcentre(),z; |
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| 476 | z=obj.getZmin()-0.5; |
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| 477 | float vmin=head.pixToVel(x,y,z); |
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| 478 | z=obj.getZmax()+0.5; |
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| 479 | float vmax=head.pixToVel(x,y,z); |
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| 480 | plot.drawVelRange(vmin,vmax); |
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| 481 | } |
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| 482 | else{ |
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| 483 | plot.drawVelRange(obj.getZmin()-0.5,obj.getZmax()+0.5); |
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| 484 | } |
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| 485 | |
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| 486 | } |
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| 487 | |
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| 488 | |
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| 489 | |
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[378] | 490 | } |
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| 491 | |
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