1 | //--------------------------------------------------------------------------
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2 | // File and Version Information:
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3 | // $Id: squarefilt.cc,v 1.3 1999-11-29 14:16:09 ansari Exp $
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4 | //
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5 | // Description:
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6 | //
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7 | // History (add to end):
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8 | // Sophie Oct, 1999 - creation
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9 | //
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10 | //------------------------------------------------------------------------
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11 |
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12 | //---------------
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13 | // C++ Headers --
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14 | //---------------
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15 | #include "machdefs.h"
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16 | #include <iostream.h>
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17 |
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18 | #include "squarefilt.h"
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19 |
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20 | //----------------
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21 | // Constructor --
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22 | //----------------
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23 | SquareFilter::SquareFilter()
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24 | : SpectralResponse()
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25 | {
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26 | }
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27 |
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28 | SquareFilter::SquareFilter(double numin, double numax)
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29 | : SpectralResponse(numin, numax)
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30 | {
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31 | _nuPeak = (numin+numax)/2.;
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32 | _peakTransmission = transmission(_nuPeak);
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33 | }
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34 |
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35 |
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36 | //--------------
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37 | // Destructor --
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38 | //--------------
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39 | SquareFilter::~SquareFilter()
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40 | {
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41 | }
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42 |
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43 | // ---------------------------
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44 | // -- Function Definitions --
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45 | // ---------------------------
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46 |
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47 |
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48 | double
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49 | SquareFilter::transmission(double nu) const
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50 | {
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51 | if(nu < -1.e99) nu = -1.e99;
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52 | if(nu > 1.e99) nu = 1.e99;
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53 |
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54 | if(nu>=_numin && nu<=_numax) return 1.;
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55 | return 0.;
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56 | }
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57 |
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58 | double
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59 | SquareFilter::peakFreq() const
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60 | {
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61 | return _nuPeak;
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62 | }
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63 |
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64 | double
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65 | SquareFilter::peakTransmission() const
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66 | {
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67 | return _peakTransmission;
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68 | }
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69 |
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70 | void
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71 | SquareFilter::WriteSelf(POutPersist& s)
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72 | {
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73 | s.PutR8(this->minFreq());
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74 | s.PutR8(this->maxFreq());
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75 | }
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76 |
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77 | void
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78 | SquareFilter::ReadSelf(PInPersist& s)
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79 | {
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80 | double minFreq, maxFreq;
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81 | s.GetR8(_numin);
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82 | s.GetR8(_numax);
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83 | cout << "minFreq - maxFreq " << _numin << "-" << _numax << endl;
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84 | }
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