include/CGAL/Bbox_2.h File Reference

#include <CGAL/basic.h>
#include <cmath>
#include <CGAL/cgalopt.h>

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Classes
class	Bbox_2

Functions
std::ostream &	operator<< (std::ostream &os, const Bbox_2 &b)
std::istream &	operator>> (std::istream &is, Bbox_2 &b)
bool	do_overlap (const Bbox_2 &bb1, const Bbox_2 &bb2)
bool	do_overlap_eps (const Bbox_2 &bb1, const Bbox_2 &bb2, const double eps)
bool	do_overlap_strict (const Bbox_2 &bb1, const Bbox_2 &bb2)
template<class InIter >
Bbox_2	get_Bbox_2 (InIter first, InIter last)

Function Documentation

bool do_overlap ( const Bbox_2 &  bb1, const Bbox_2 &  bb2  )

inline

Definition at line 138 of file include/CGAL/Bbox_2.h.

References Bbox_2::xmax(), Bbox_2::xmin(), Bbox_2::ymax(), and Bbox_2::ymin().

{
  // check for emptiness ??
  if (bb1.xmax() < bb2.xmin() || bb2.xmax() < bb1.xmin())
    return false;
  if (bb1.ymax() < bb2.ymin() || bb2.ymax() < bb1.ymin())
    return false;
  return true;
}

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bool do_overlap_eps ( const Bbox_2 &  bb1, const Bbox_2 &  bb2, const double  eps  )

inline

Definition at line 155 of file include/CGAL/Bbox_2.h.

References Bbox_2::xmax(), Bbox_2::xmin(), Bbox_2::ymax(), and Bbox_2::ymin().

                                             {
  // check for emptiness ??
  if (bb1.xmax()+eps < bb2.xmin() || bb2.xmax()+eps < bb1.xmin())
    return false;
  if (bb1.ymax()+eps < bb2.ymin() || bb2.ymax()+eps < bb1.ymin())
    return false;
  return true;
}

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bool do_overlap_strict ( const Bbox_2 &  bb1, const Bbox_2 &  bb2  )

inline

Definition at line 165 of file include/CGAL/Bbox_2.h.

References Bbox_2::xmax(), Bbox_2::xmin(), Bbox_2::ymax(), and Bbox_2::ymin().

{
  if (bb1.xmax() <= bb2.xmin() || bb2.xmax() <= bb1.xmin())
    return false;
  if (bb1.ymax() <= bb2.ymin() || bb2.ymax() <= bb1.ymin())
    return false;
  return true;
}

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Bbox_2 get_Bbox_2	(	InIter	first,
		InIter	last
	)

Definition at line 175 of file include/CGAL/Bbox_2.h.

                                             {
  Bbox_2  box;

  while (first != last) {
    box += first->bbox();
    ++first;
  }
  return box;
}

std::ostream& operator<< ( std::ostream &  os, const Bbox_2 &  b  )

inline

Definition at line 91 of file include/CGAL/Bbox_2.h.

References IO::ASCII, IO::BINARY, IO::mode, write(), Bbox_2::xmax(), Bbox_2::xmin(), Bbox_2::ymax(), and Bbox_2::ymin().

{
  switch(os.iword(IO::mode)) {
  case IO::ASCII :
    os << b.xmin() << ' ' << b.ymin() << ' '
       << b.xmax() << ' ' << b.ymax();
    break;
  case IO::BINARY :
    write(os, b.xmin());
    write(os, b.ymin());
    write(os, b.xmax());
    write(os, b.ymax());
    break;
  default:
    os << "Bbox_2(" << b.xmin() << ", " << b.ymin() << ", "
       << b.xmax() << ", " << b.ymax() << ")";
    break;
  }
  return os;
}

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std::istream& operator>> ( std::istream &  is, Bbox_2 &  b  )

inline

Definition at line 118 of file include/CGAL/Bbox_2.h.

References IO::ASCII, IO::BINARY, IO::mode, and read().

{
  double xmin, ymin, xmax, ymax;

  switch(is.iword(IO::mode)) {
  case IO::ASCII :
    is >> xmin >> ymin >> xmax >> ymax;
    break;
  case IO::BINARY :
    read(is, xmin);
    read(is, ymin);
    read(is, xmax);
    read(is, ymax);
    break;
  }
  b = Bbox_2(xmin, ymin, xmax, ymax);
  return is;
}

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