structureMapper.h

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// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//
// $Id: structureMapper.h,v 1.29.8.1 2007/03/25 21:25:32 oliver Exp $
//
// Author:
//   Oliver Kohlbacher
//   Hans-Peter Lenhof
//

#ifndef BALL_STRUCTURE_STRUCTUREMAPPER_H
#define BALL_STRUCTURE_STRUCTUREMAPPER_H

#ifndef BALL_COMMON_H
# include <BALL/common.h>
#endif

#ifndef BALL_CONCEPT_PROCESSOR_H
# include <BALL/CONCEPT/processor.h>
#endif

#ifndef BALL_STRUCTURE_GEOMETRICTRANSFORMATIONS_H
# include <BALL/STRUCTURE/geometricTransformations.h>
#endif

#ifndef BALL_DATATYPE_STRING_H
# include <BALL/DATATYPE/string.h>
#endif

#ifndef BALL_KERNEL_PROTEIN_H
# include <BALL/KERNEL/protein.h>
#endif

#ifndef BALL_KERNEL_ATOM_H
# include <BALL/KERNEL/atom.h>
#endif

#ifndef BALL_MATHS_MATRIX44_H
# include <BALL/MATHS/matrix44.h>
#endif

#ifndef BALL_STRUCTURE_ATOMBIJECTION_H
# include <BALL/STRUCTURE/atomBijection.h>
#endif

#include <vector>
#include <map>

namespace BALL 
{

  class BALL_EXPORT StructureMapper
    : public TransformationProcessor
  {
    public:

    
    StructureMapper();

    StructureMapper(AtomContainer& A, AtomContainer& B);

    virtual ~StructureMapper();


    void set(AtomContainer& A, AtomContainer& B);
    
    double calculateRMSD();
    
    bool calculateTransformation();

    void calculateDefaultBijection();

    const AtomBijection& getBijection() const { return bijection_; }

    AtomBijection calculateFragmentBijection
      (const vector<Fragment*>& A, const vector<Fragment*>& B);

    bool mapFragments
      (const vector<Fragment*>& A, const vector<Fragment*>& B, 
       Matrix4x4* transformation, double upper_bound = 8.0, double lower_bound = 2.5);

    static Matrix4x4 matchPoints
      (const Vector3& w1, const Vector3& w2, const Vector3& w3, 
       const Vector3& v1, const Vector3& v2, const Vector3& v3);

    static Matrix4x4 matchBackboneAtoms(const Residue& r1, const Residue& r2);

    Size mapResiduesByBackbone(const list<Residue*>& l1, const list<Residue*>& l2);
   
    vector<vector<Fragment*> >& searchPattern
      (vector<Fragment*>& pattern, AtomContainer& composite,
       double max_rmsd = 4.0,    double max_center_tolerance = 2.0,
       double upper_bound = 8.0, double lower_bound = 4.0);

    Matrix4x4 mapProteins
      (Protein& P1, Protein& P2, 
       std::map<String, Size>&  type_map,
       Size&              no_matched_ca,
       double&            rmsd,
       double             upper_bound = 8.0,
       double             lower_bound = 4.0,
       double             tolerance = 0.6);

    protected:
    // Count the fragments in an AtomContainer -- this is not implemented
    // in AtomContainer!
    Size countFragments_(const AtomContainer& ac) const;

    /*_ The first of two composites - the "original" 
    */
    AtomContainer*  A_;

    /*_ The second composites - the "copy" to be mapped 
    */
    AtomContainer*  B_;
    
    /*_ The current atom bijection.
        Required for the caclulation of the RMSD.
    */
    AtomBijection bijection_;
    
    /*_ The rmsd of the last mapping executed 
    */
    double  rmsd_;
  };

} // namespace BALL

#endif // BALL_STRUCTURE_STRUCTUREMAPPER_H