00001 // -*- Mode: C++; tab-width: 2; -*- 00002 // vi: set ts=2: 00003 // 00004 // -------------------------------------------------------------------------- 00005 // OpenMS Mass Spectrometry Framework 00006 // -------------------------------------------------------------------------- 00007 // Copyright (C) 2003-2008 -- Oliver Kohlbacher, Knut Reinert 00008 // 00009 // This library is free software; you can redistribute it and/or 00010 // modify it under the terms of the GNU Lesser General Public 00011 // License as published by the Free Software Foundation; either 00012 // version 2.1 of the License, or (at your option) any later version. 00013 // 00014 // This library is distributed in the hope that it will be useful, 00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 // Lesser General Public License for more details. 00018 // 00019 // You should have received a copy of the GNU Lesser General Public 00020 // License along with this library; if not, write to the Free Software 00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00022 // 00023 // -------------------------------------------------------------------------- 00024 // $Maintainer: Andreas Bertsch $ 00025 // -------------------------------------------------------------------------- 00026 // 00027 #ifndef OPENMS_FILTERING_TRANSFORMERS_NLARGEST_H 00028 #define OPENMS_FILTERING_TRANSFORMERS_NLARGEST_H 00029 00030 #include <OpenMS/FILTERING/TRANSFORMERS/PreprocessingFunctor.h> 00031 00032 namespace OpenMS 00033 { 00034 00042 class NLargest 00043 : public PreprocessingFunctor 00044 { 00045 public: 00046 00047 // @name Constructors and Destructors 00048 // @{ 00050 NLargest(); 00051 00053 NLargest(UInt n); 00054 00056 NLargest(const NLargest& source); 00057 00059 virtual ~NLargest(); 00060 // @} 00061 00062 // @name Operators 00063 // @{ 00065 NLargest& operator=(const NLargest& source); 00066 // @} 00067 00068 // @name Accessors 00069 // @{ 00070 // static create function for factory 00071 static PreprocessingFunctor* create() 00072 { 00073 return new NLargest(); 00074 } 00075 00077 static const String getProductName() 00078 { 00079 return "NLargest"; 00080 } 00081 00083 template <typename SpectrumType> void filterSpectrum(SpectrumType& spectrum) 00084 { 00085 // get parameter how many peaks are wanted 00086 unsigned int n = (unsigned int)param_.getValue("n"); 00087 if (spectrum.size() <= n) return; 00088 00089 // sort by reverse intensity 00090 spectrum.getContainer().sortByIntensity(true); 00091 00092 // keep the n largest peaks if more than n are present 00093 spectrum.resize(n); 00094 } 00095 00096 void filterPeakSpectrum(PeakSpectrum& spectrum); 00097 00098 void filterPeakMap(PeakMap& exp); 00099 // @} 00100 00101 }; 00102 00103 } 00104 #endif //OPENMS_FILTERING_TRANSFORMERS_NLARGEST_H
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