1 | //# SpectralEstimate.cc: Get an initial estimate for spectral lines |
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2 | //# Copyright (C) 2001,2002,2003,2004 |
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3 | //# Associated Universities, Inc. Washington DC, USA. |
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4 | //# |
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5 | //# This library is free software; you can redistribute it and/or modify it |
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6 | //# under the terms of the GNU Library General Public License as published by |
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7 | //# the Free Software Foundation; either version 2 of the License, or (at your |
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8 | //# option) any later version. |
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9 | //# |
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10 | //# This library is distributed in the hope that it will be useful, but WITHOUT |
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11 | //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 | //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
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13 | //# License for more details. |
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14 | //# |
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15 | //# You should have received a copy of the GNU Library General Public License |
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16 | //# along with this library; if not, write to the Free Software Foundation, |
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17 | //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. |
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18 | //# |
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19 | //# Correspondence concerning AIPS++ should be addressed as follows: |
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20 | //# Internet email: aips2-request@nrao.edu. |
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21 | //# Postal address: AIPS++ Project Office |
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22 | //# National Radio Astronomy Observatory |
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23 | //# 520 Edgemont Road |
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24 | //# Charlottesville, VA 22903-2475 USA |
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25 | //# |
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26 | //# $Id: SpectralEstimate.cc 19933 2007-02-27 05:04:51Z Malte.Marquarding $ |
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27 | |
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28 | //# Includes |
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29 | #include <components/SpectralComponents/SpectralEstimate.h> |
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30 | #include <casa/Arrays/Vector.h> |
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31 | #include <casa/BasicMath/Math.h> |
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32 | |
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33 | namespace casa { //# NAMESPACE CASA - BEGIN |
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34 | |
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35 | //# Constructors |
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36 | SpectralEstimate::SpectralEstimate(const uInt maxpar) : |
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37 | useWindow_p(False), rms_p(0), cutoff_p(0), |
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38 | windowLow_p(0), windowEnd_p(0), |
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39 | regionLow_p(0), regionEnd_p(0), |
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40 | q_p(2), sigmin_p(0), |
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41 | deriv_p(0), slist_p(maxpar), lprof_p(0) { |
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42 | setQ(); |
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43 | } |
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44 | |
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45 | SpectralEstimate::SpectralEstimate(const Double rms, |
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46 | const Double cutoff, const Double minsigma, |
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47 | const uInt maxpar) : |
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48 | useWindow_p(False), rms_p(rms), cutoff_p(cutoff), |
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49 | windowLow_p(0), windowEnd_p(0), |
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50 | regionLow_p(0), regionEnd_p(0), |
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51 | q_p(2), sigmin_p(minsigma), |
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52 | deriv_p(0), slist_p(maxpar), lprof_p(0) { |
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53 | setQ(); |
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54 | } |
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55 | |
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56 | |
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57 | SpectralEstimate::SpectralEstimate(const SpectralEstimate &other) : |
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58 | useWindow_p(other.useWindow_p), rms_p(other.rms_p), cutoff_p(other.cutoff_p), |
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59 | windowLow_p(other.windowLow_p), windowEnd_p(other.windowEnd_p), |
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60 | regionLow_p(other.regionLow_p), regionEnd_p(other.regionEnd_p), |
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61 | q_p(other.q_p), sigmin_p(other.sigmin_p), |
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62 | deriv_p(0), slist_p(other.slist_p), lprof_p(other.lprof_p) { |
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63 | setQ(q_p); |
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64 | deriv_p = new Double[lprof_p]; |
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65 | for (uInt i=0; i<lprof_p; i++) deriv_p[i] = other.deriv_p[i]; |
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66 | } |
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67 | |
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68 | SpectralEstimate::~SpectralEstimate() { |
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69 | delete [] deriv_p; deriv_p = 0; lprof_p = 0; |
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70 | } |
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71 | |
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72 | SpectralEstimate &SpectralEstimate::operator=(const SpectralEstimate &other) { |
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73 | if (this != &other) { |
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74 | useWindow_p = other.useWindow_p; |
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75 | rms_p = other.rms_p; |
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76 | cutoff_p = other.cutoff_p; |
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77 | windowLow_p = other.windowLow_p; |
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78 | windowEnd_p = other.windowEnd_p; |
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79 | regionLow_p = other.regionLow_p; |
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80 | regionEnd_p = other.regionEnd_p; |
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81 | q_p = other.q_p; |
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82 | sigmin_p = other.sigmin_p; |
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83 | deriv_p = 0; |
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84 | slist_p = other.slist_p; |
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85 | lprof_p = other.lprof_p; |
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86 | setQ(q_p); |
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87 | deriv_p = new Double[lprof_p]; |
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88 | for (uInt i=0; i<lprof_p; i++) deriv_p[i] = other.deriv_p[i]; |
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89 | }; |
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90 | return *this; |
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91 | } |
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92 | |
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93 | void SpectralEstimate::setRMS(const Double rms) { |
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94 | rms_p = abs(rms); |
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95 | } |
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96 | |
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97 | void SpectralEstimate::setCutoff(const Double cutoff) { |
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98 | cutoff_p = max(0.0, cutoff); |
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99 | } |
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100 | |
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101 | void SpectralEstimate::setMinSigma(const Double minsigma) { |
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102 | sigmin_p = max(0.0, minsigma); |
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103 | } |
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104 | |
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105 | void SpectralEstimate::setQ(const uInt q) { |
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106 | q_p = max(1, Int(q)); |
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107 | a_p = 90.0/(q_p*(q_p+1)*(4*q_p*q_p-1)*(2*q_p+3)); |
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108 | b_p = (q_p*(q_p+1))/3.0; |
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109 | } |
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110 | |
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111 | void SpectralEstimate::setRegion(const Int lo, const Int hi) { |
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112 | regionLow_p = regionEnd_p = 0; |
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113 | if (hi > lo) { |
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114 | regionLow_p = lo; |
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115 | regionEnd_p = hi; |
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116 | }; |
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117 | } |
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118 | |
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119 | void SpectralEstimate::setWindowing(const Bool win) { |
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120 | useWindow_p = win; |
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121 | } |
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122 | |
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123 | void SpectralEstimate::setMaxN(const uInt maxpar) { |
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124 | slist_p.set(maxpar); |
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125 | } |
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126 | |
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127 | } //# NAMESPACE CASA - END |
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128 | |
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129 | |
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130 | //# Cater for Double and Float |
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131 | #ifdef AIPS_NO_TEMPLATE_SRC |
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132 | #include <components/SpectralComponents/Spectral2Estimate.tcc> |
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133 | |
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134 | namespace casa { //# NAMESPACE CASA - BEGIN |
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135 | template SpectralList const & SpectralEstimate::estimate<Float>(Vector<Float> const &, Vector<Float> *); |
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136 | template SpectralList const & SpectralEstimate::estimate<Float>(Vector<Float> const &, Vector<Float> const &); |
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137 | template SpectralElement SpectralEstimate::convertElement<Float>(Vector<Float> const &, |
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138 | SpectralElement const &) const; |
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139 | template void SpectralEstimate::findga<Float>(Vector<Float> const &); |
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140 | template uInt SpectralEstimate::window<Float>(Vector<Float> const &); |
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141 | template void SpectralEstimate::findc2<Float>(Vector<Float> const &); |
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142 | |
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143 | template SpectralList const & SpectralEstimate::estimate<Double>(Vector<Double> const &, Vector<Double> *); |
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144 | template SpectralList const & SpectralEstimate::estimate<Double>(Vector<Double> const &, Vector<Double> const &); |
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145 | template SpectralElement SpectralEstimate::convertElement<Double>(Vector<Double> const &, |
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146 | SpectralElement const &) const; |
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147 | template void SpectralEstimate::findga<Double>(Vector<Double> const &); |
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148 | template uInt SpectralEstimate::window<Double>(Vector<Double> const &); |
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149 | template void SpectralEstimate::findc2<Double>(Vector<Double> const &); |
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150 | } //# NAMESPACE CASA - END |
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151 | #endif |
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