netgen/libsrc/geom2d/geometry2d.hpp

#ifndef FILE_GEOMETRY2D
#define FILE_GEOMETRY2D

/* *************************************************************************/
/* File:   geometry2d.hpp                                                  */
/* Author: Joachim Schoeberl                                               */
/* Date:   20. Jul. 02                                                     */
/* *************************************************************************/

#include <myadt.hpp>
#include <gprim.hpp>


// #include "../gprim/spline.hpp"
// #include "../gprim/splinegeometry.hpp"
#include "geom2dmesh.hpp"

namespace netgen
{

  class SplineSegExt : public SplineSeg<2>
  {
  public:
    const SplineSeg<2> & seg;
    
    /// left domain
    int leftdom;
    /// right domain
    int rightdom;
    /// refinement at line
    double reffak;
    /// maximal h;
    double hmax;
    /// boundary condition number
    int bc;
    /// copy spline mesh from other spline (-1.. do not copy)
    int copyfrom;
    /// perfrom anisotropic refinement (hp-refinement) to edge
    bool hpref_left;
    /// perfrom anisotropic refinement (hp-refinement) to edge
    bool hpref_right;
    ///
    int layer;

    SplineSegExt (const SplineSeg<2> & hseg) 
      : seg(hseg)
    {
      layer = 1;
    }

    
    virtual const GeomPoint<2> & StartPI () const 
    { 
      return seg.StartPI(); 
    }

    virtual const GeomPoint<2> & EndPI () const 
    {
      return seg.EndPI();
    }

    virtual Point<2> GetPoint (double t) const 
    {
      return seg.GetPoint(t);
    }

    virtual Vec<2> GetTangent (const double t) const
    {
      return seg.GetTangent(t);
    }

    virtual void GetDerivatives (const double t,  
				 Point<2> & point,
				 Vec<2> & first,
				 Vec<2> & second) const
    {
      seg.GetDerivatives (t, point, first, second);
    }

    virtual void GetCoeff (Vector & coeffs) const 
    {
      seg.GetCoeff (coeffs);
    }

    virtual void GetPoints (int n, Array<Point<2> > & points) const
    {
      seg.GetPoints (n, points);
    }

    virtual double MaxCurvature () const 
    {
      return seg.MaxCurvature();
    }

    virtual string GetType () const
    {
      return seg.GetType();
    }

    virtual double CalcCurvature (double t) const
    {
      Point<2> point;
      Vec<2> first, second;
      GetDerivatives (t, point, first, second);
      double curv = fabs(first(0)*second(1)-first(1)*second(0)) / pow(first.Length(), 3);
      return curv;
    }
    
  };




  class SplineGeometry2d : public SplineGeometry<2>, public NetgenGeometry
  {
  protected:
    Array<char*> materials;
    Array<double> maxh;
    Array<bool> quadmeshing;
    Array<bool> tensormeshing;
    Array<int> layer;
    Array<string*> bcnames;
    double elto0;


  public:
    DLL_HEADER virtual ~SplineGeometry2d();

    DLL_HEADER void Load (const char * filename);

    DLL_HEADER void LoadData( ifstream & infile );
    DLL_HEADER void LoadDataNew ( ifstream & infile );
    DLL_HEADER void LoadDataV2 ( ifstream & infile );

    void TestComment ( ifstream & infile ) ;

    

    const SplineSegExt & GetSpline (const int i) const 
    { 
      return dynamic_cast<const SplineSegExt&> (*splines[i]);
    }

    SplineSegExt & GetSpline (const int i) 
    { 
      return dynamic_cast<SplineSegExt&> (*splines[i]);
    }

    
    DLL_HEADER virtual int GenerateMesh (Mesh*& mesh, MeshingParameters & mparam,
			      int perfstepsstart, int perfstepsend);
    
    void PartitionBoundary (MeshingParameters & mp, double h, Mesh & mesh2d);

    void CopyEdgeMesh (int from, int to, Mesh & mesh2d, Point3dTree & searchtree);


    void GetMaterial( const int  domnr, char* & material );

    double GetDomainMaxh ( const int domnr );
    bool GetDomainQuadMeshing ( int domnr ) 
    { 
      if ( quadmeshing.Size() ) return quadmeshing[domnr-1]; 
      else return false;
    }
    bool GetDomainTensorMeshing ( int domnr ) 
    { 
      if ( tensormeshing.Size() ) return tensormeshing[domnr-1]; 
      else return false;
    }
    int GetDomainLayer ( int domnr ) 
    { 
      if ( layer.Size() ) return layer[domnr-1]; 
      else return 1;
    }


    string GetBCName ( const int bcnr ) const;

    string * BCNamePtr ( const int bcnr );

    
    DLL_HEADER virtual Refinement & GetRefinement () const; 
  };
}







#endif