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[Battalgazi YILDIRIM <>]

Hi,

I am looking following example under examples/Point_set_2/nearest_neighborhood.cpp.  I want to
assign some values to each points.  After I found nearest points, I would like to reach
nearest points' values. I can do this through std::map, but I don't feel that it is the 
right way.

As an example, you have temperature field over 2D domain (x,y). Each point
you have some temperature value  such as (x,y,T).  When I ask nearest
points around (x0,y0), I also  want to get T values, in addition to (x,y)s , of nearest locations.


Could you help me out?

Thanks,
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Point_set_2.h>
#include <list>

typedef CGAL::Exact_predicates_inexact_constructions_kernel K;

typedef CGAL::Point_set_2<K>::Edge_iterator  Edge_iterator;
typedef CGAL::Point_set_2<K>::Vertex_handle  Vertex_handle;
typedef K::Point_2                           Point_2;

CGAL::Point_set_2<K> PSet;
Point_2 ar1[5];


int main()
{
  std::list<Point_2> Lr;

  Point_2 p1(12,14);
  Point_2 p2(-12,14);
  Point_2 p3(2,11);
  Point_2 p4(5,6);
  Point_2 p5(6.7,3.8);
  Point_2 p6(11,20);
  Point_2 p7(-5,6);
  Point_2 p8(12,0);
  Point_2 p9(4,31);
  Point_2 p10(-10,-10);

  Lr.push_back(p1); Lr.push_back(p2); Lr.push_back(p3);
  Lr.push_back(p4); Lr.push_back(p5); Lr.push_back(p6);
  Lr.push_back(p7); Lr.push_back(p8); Lr.push_back(p9);
  Lr.push_back(p10);

  PSet.insert(Lr.begin(),Lr.end());

   // init
  ar1[0]=p4; ar1[1]=p5; ar1[2]=p3; ar1[3]=p7; ar1[4]=p8;

  Point_2 actual(3.0,4.5);

  // nearest neighbor ...
  Vertex_handle v = PSet.nearest_neighbor(actual);
  std::cout << "Nearest neighbor:" << v->point() << "\n";

  // k nearest neighbors ...
  std::list<Vertex_handle> L;
  std::list<Vertex_handle>::const_iterator it;

  PSet.nearest_neighbors(actual,7, std::back_inserter(L));
  std::cout << "actual point: " << actual << "\n";

  for (it=L.begin();it != L.end(); it++)
      std::cout << (*it)->point() << " infor = " << (*it)->info() << "\n";

  return 0;
}


-- 
B. Gazi YILDIRIM