triangulatedSES.h

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// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//

#ifndef BALL_STRUCTURE_TRIANGULATEDSES_H
#define BALL_STRUCTURE_TRIANGULATEDSES_H

#ifndef BALL_TRUCTURE_SOLVENTEXCLUDEDSURFACE_H
# include <BALL/STRUCTURE/solventExcludedSurface.h>
#endif

#ifndef BALL_STRUCTURE_TRIANGLE_H
# include <BALL/STRUCTURE/triangle.h>
#endif

#ifndef BALL_STRUCTURE_TRIANGLEEDGE_H
# include <BALL/STRUCTURE/triangleEdge.h>
#endif

#ifndef BALL_STRUCTURE_TRIANGLEPOINT_H
# include <BALL/STRUCTURE/trianglePoint.h>
#endif

#ifndef BALL_STRUCTURE_TRIANGULATEDSURFACE_H
# include <BALL/STRUCTURE/triangulatedSurface.h>
#endif

#ifndef BALL_MATHS_ANGLE_H
# include <BALL/MATHS/angle.h>
#endif

#ifndef BALL_MATHS_CIRCLE3_H
# include <BALL/MATHS/circle3.h>
#endif

#ifndef BALL_MATHS_SPHERE3_H
# include <BALL/MATHS/sphere3.h>
#endif

#ifndef BALL_MATHS_VECTOR3_H
# include <BALL/MATHS/vector3.h>
#endif

#include <list>
#include <vector>

namespace BALL
{
  class SESTriangulator;

  class BALL_EXPORT TriangulatedSES : public TriangulatedSurface
  {
    
    public:

    friend class SESTriangulator;

    BALL_CREATE(TriangulatedSES)

    

    TriangulatedSES()
      ;

    TriangulatedSES(const TriangulatedSES& surface, bool = true)
      ;

    TriangulatedSES(SolventExcludedSurface* ses, const double& density)
      ;

    virtual ~TriangulatedSES()
      ;


    void set(const TriangulatedSES& surface, bool = true)
      ;

    TriangulatedSES& operator = (const TriangulatedSES& surface)
      ;

    void setDensity(const double& density)
      ;

    double getDensity() const
      ;



    void compute()
      throw(Exception::GeneralException,Exception::DivisionByZero);


    protected:

    /*_ @name Attributes
    */

    SolventExcludedSurface* ses_;

    double density_;


  };



  class BALL_EXPORT SESTriangulator
  {
    
    public:

    BALL_CREATE(SESTriangulator)

    

    SESTriangulator()
      ;

    SESTriangulator(TriangulatedSES* tses)
      ;

    virtual ~SESTriangulator()
      ;


    void run()
      throw(Exception::GeneralException,Exception::DivisionByZero);

    private:

    void preProcessing()
      ;

    void triangulateToricFaces()
      ;

    void partitionSingularEdges()
      ;

    void triangulateContactFaces()
      ;

    void triangulateSphericFaces()
      ;

    void triangulateToricFace
        (SESFace* face,
         const double&      probe_radius)
      ;

    void triangulateFreeToricFace
        (SESFace* face,
         const double& probe_radius)
      ;

    void triangulateSingularToricFace
        (SESFace* face,
         const double& probe_radius)
      ;

    void triangulateNonSingularToricFace
        (SESFace* face,
         const double& probe_radius)
      ;

    void partitionSingularEdge(SESEdge* singular_edge)
      ;

    void partitionFreeSingularEdge(SESEdge* singular_edge)
      ;

    void partitionNonFreeSingularEdge(SESEdge* singular_edge)
      ;

    void triangulateContactFace
        (SESFace*       face,
         const TSphere3<double>& sphere)
      ;

    bool triangulateSphericFace
        (SESFace*       face,
         const TSphere3<double>&  sphere)
      ;

    bool buildSphericTriangles
        (SESFace*         face,
         TriangulatedSES& part,
         const TSphere3<double>&    sphere,
         bool             convex = true)
      ;

    bool buildFirstTriangle
        (SESFace*                       face,
         TriangulatedSES&               part,
         std::list<TriangleEdge*>&      border,
         const TSphere3<double>&                  sphere,
         const HashSet<TrianglePoint*>& points,
         bool                           convex)
      ;

    SESEdge* firstSESEdge(const std::list<SESEdge*>& sesedge)
      ;

    void buildUnambiguousTriangle
        (TriangleEdge*             edge,
         TrianglePoint*            point,
         std::list<TriangleEdge*>& border,
         const TSphere3<double>&             sphere,
         TriangulatedSES&          part,
         bool                          convex
        )
      ;

    void buildAmbiguousTriangles
        (TriangleEdge*             edge,
         std::list<TrianglePoint*> points,
         std::list<TriangleEdge*>& border,
         const TSphere3<double>&             sphere,
         TriangulatedSES&          part,
         bool                          convex
        )
      ;

    void createTriangleAndEdges
        (TriangleEdge*  edge,
         TrianglePoint* point,
         const TSphere3<double>& sphere,
         TriangleEdge*& edge1,
         bool&              old1,
         TriangleEdge*& edge2,
         bool&              old2,
         Triangle*&     triangle,
         bool               convex
        )
      ;

    void partitionOfCircle
        (const TCircle3<double>&      circle,
         const TVector3<double>&      p0,
         const TAngle<double>&        phi,
         Size               number_of_segments,
         vector< TVector3<double> >&  partition,
         bool               on_surface = true)
      ;

    Size numberOfRefinements(const double& density, const double& radius)
      ;

    void buildTemplateSpheres()
      ;

    void buildTriangles
       (SESEdge*                      edge0,
        SESEdge*                      edge1,
        SESEdge*                      edge2,
        SESEdge*                      edge3,
        const std::vector< TVector3<double> >&  centers,
        const std::vector< TVector3<double> >&  edge1_points,
        const std::vector< TVector3<double> >& edge3_points,
        const double&                 probe_radius)
      ;


    protected:

    /*_ @name Attributes
    */

    TriangulatedSES* tses_;
    std::vector<TrianglePoint*> point_;
    std::vector<std::list<TriangleEdge*> > edge_;
    HashMap<Size, std::list<TrianglePoint*> > template_spheres_;
    double sqrt_density_;


  };

   
} // namespace BALL


#endif  // BALL_STRUCTURE_TRIANGULATEDSES_H

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