convolution_search.h

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00001 
00005 //C Copyright (C) 2000-2006 Kevin Cowtan and University of York
00006 //L
00007 //L  This library is free software and is distributed under the terms
00008 //L  and conditions of version 2.1 of the GNU Lesser General Public
00009 //L  Licence (LGPL) with the following additional clause:
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00011 //L     `You may also combine or link a "work that uses the Library" to
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00015 //L     version of the Library is used in it, and that you include or
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00017 //L     machine-readable source code for the Library including whatever
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00019 //L     Library you must distribute those, but you do not need to
00020 //L     distribute source or object code to those portions of the work
00021 //L     not covered by this licence.)'
00022 //L
00023 //L  Note that this clause grants an additional right and does not impose
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00026 //L  other terms, please contact the maintainer.
00027 //L
00028 //L  You can redistribute it and/or modify the library under the terms of
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00030 //L  Foundation; either version 2.1 of the License, or (at your option) any
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00033 //L  This library is distributed in the hope that it will be useful, but
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00044 
00045 
00046 #ifndef CLIPPER_CONVOLUTION_SEARCH
00047 #define CLIPPER_CONVOLUTION_SEARCH
00048 
00049 
00050 #include "function_object_bases.h"
00051 
00052 
00053 namespace clipper {
00054 
00055 
00057 
00060   template<class T> class Convolution_search_slow : public Convolution_search_base<T> {
00061   public:
00063     Convolution_search_slow( const Xmap<T>& xmap ) { init( xmap ); }
00065     Convolution_search_slow( Xmap<T>& result, const NXmap<T>& srchval, const Xmap<T>& xmap, const NX_operator& nxop ) { init( xmap ); (*this)( result, srchval, nxop ); }
00067     void init( const Xmap<T>& xmap ) { xmp = &xmap; }
00068     bool operator() ( Xmap<T>& result, const NXmap<T>& srchval, const NX_operator& nxop ) const;
00069     bool operator() ( Xmap<T>& result, const NXmap<T>& srchval ) const;  
00070   private:
00071     const Xmap<T>* xmp;
00072   };
00073 
00074 
00076 
00079   template<class T> class Convolution_search_fft : public Convolution_search_base<T> {
00080   public:
00082     Convolution_search_fft( const Xmap<T>& xmap ) { init( xmap ); }
00084     Convolution_search_fft( Xmap<T>& result, const NXmap<T>& srchval, const Xmap<T>& xmap, const NX_operator& nxop ) { init( xmap ); (*this)( result, srchval, nxop ); }
00086     void init( const Xmap<T>& xmap );
00087     bool operator() ( Xmap<T>& result, const NXmap<T>& srchval, const NX_operator& nxop ) const;
00088     bool operator() ( Xmap<T>& result, const NXmap<T>& srchval ) const;  
00089   private:
00090     ftype vol;
00091     FFTmap_p1 rho1;
00092   };
00093 
00094 
00095 } // namespace clipper
00096 
00097 #endif

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