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Gral/Grids/Cartesian2D/boundary.h

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#ifndef NMWR_GB_BOUNDARY_REG2D_H
#define NMWR_GB_BOUNDARY_REG2D_H

// $LICENSE

#include "Gral/Base/boundary.h"
#include "Gral/Base/grid-functors.h"

#include "Gral/Iterators/boundary-iterator.h"

#include "Gral/Grids/Cartesian2D/cartesian-grid2d.h"

class BoundaryRange<RegGrid2D> {
public:

  typedef RegGrid2D                grid_type;
  typedef grid_types<grid_type>    gt;
  typedef gt::Edge                 Edge;
  typedef gt::Vertex               Vertex;

  typedef iscellinside_pred<grid_type>                          inside_p;
  typedef BoundaryComponentVertexIterator2D<grid_type,inside_p> VertexIterator;
  typedef BoundaryComponentEdgeIterator2D  <grid_type,inside_p> EdgeIterator;
  typedef BoundaryComponentEdgeIterator2D <grid_type,inside_p>  FacetIterator;
private:
  grid_type const* g;
  Edge             seed_edge;
public:
  BoundaryRange() : g(0) {}
  BoundaryRange(grid_type const& gg) : g(&gg) 
    {
      // get edge on boundary (should be the first edge)
      gt::EdgeIterator e = TheGrid().FirstEdge();
     while(! TheGrid().IsOnBoundary(*e))
       ++e;
     seed_edge = *e;
    }


  //  VertexIterator FirstVertex() const { return VertexIterator(seed_edge,IsEdgeOnBoundary(*g));}
  //  EdgeIterator   FirstEdge()   const { return EdgeIterator  (seed_edge,IsEdgeOnBoundary(*g));}
  //  FacetIterator  FirstFacet()  const { return FacetIterator (seed_edge,IsEdgeOnBoundary(*g));}
  VertexIterator FirstVertex() const { return VertexIterator(seed_edge,IsCellInside(*g));}
  EdgeIterator   FirstEdge()   const { return EdgeIterator  (seed_edge,IsCellInside(*g));}
  FacetIterator  FirstFacet()  const { return FacetIterator (seed_edge,IsCellInside(*g));}

  //  unsigned NumOfVertices() const;
  //  unsigned NumOfEdges()    const;
  //  unsigned NumOfFacets()   const;
  grid_type const& TheGrid() const { return *g;}

};

struct grid_types<BoundaryRange<RegGrid2D> > 
{
  typedef grid_types<RegGrid2D>     gt;
  typedef BoundaryRange<RegGrid2D>  BrC;

  typedef  gt::Vertex Vertex;
  typedef  gt::Edge   Edge;
 // typedef  gt::Facet  Facet;
 // typedef  gt::Cell   Cell;

  typedef  BrC::VertexIterator VertexIterator;
  typedef  BrC::EdgeIterator   EdgeIterator;
 // typedef  BrC::FacetIterator  FacetIterator;
  //  typedef  BrC::CellIterator   CellIterator;

 // typedef  gt::VertexOnCellIterator VertexOnCellIterator;
 // typedef  gt::EdgeOnCellIterator   EdgeOnCellIterator;
 // typedef  gt::FacetOnCellIterator  FacetOnCellIterator;
 // typedef  gt::CellOnCellIterator   CellOnCellIterator;
};



#endif

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Copyright (c) Guntram Berti 1997-2002. See the GrAL Homepage for up-to-date information.

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