[Olena-patches] milena r1368: Enlarge for boxes

URL: https://svn.lrde.epita.fr/svn/oln/trunk/milena ChangeLog: 2007-10-22 Matthieu Garrigues &lt;garrigues(a)lrde.epita.fr&gt; Enlarge for boxes. * mln/convert/to_image.hh: Update convert::to_image(pset). * mln/core/box.hh: (box_<P>::to_larger) New, (box_<P>::enlarge) New. --- convert/to_image.hh | 9 +++++---- core/box.hh | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+), 4 deletions(-) Index: trunk/milena/mln/core/box.hh =================================================================== --- trunk/milena/mln/core/box.hh (revision 1367) +++ trunk/milena/mln/core/box.hh (revision 1368) @@ -107,6 +107,12 @@ */ bool has(const P& p) const; + /// Enlarge the box with a border \p b. + void enlarge(unsigned b); + + /// Give a larger box. + box_<P> to_larger(unsigned b) const; + protected: P pmin_, pmax_; }; @@ -203,6 +209,32 @@ } template <typename P> + void + box_<P>::enlarge(unsigned b) + { + for (unsigned i = 0; i < P::dim; ++i) + { + pmin[i] -= b; + pmax[i] += b; + } + } + + + template <typename P> + box_<P> + box_<P>::to_larger(unsigned b) const + { + box_<P> tmp = *this; + + for (unsigned i = 0; i < P::dim; ++i) + { + tmp.pmin[i] -= b; + tmp.pmax[i] += b; + } + return tmp; + } + + template <typename P> std::ostream& operator<<(std::ostream& ostr, const box_<P>& b) { return ostr << "[" << b.pmin() << ".." << b.pmax() << ']'; Index: trunk/milena/mln/convert/to_image.hh =================================================================== --- trunk/milena/mln/convert/to_image.hh (revision 1367) +++ trunk/milena/mln/convert/to_image.hh (revision 1368) @@ -103,9 +103,10 @@ { - /// Convert a point set \p pset into a binary image. + /// Convert a point set \p pset into a binary image. Width of the + /// converted image will be pset.bbox + 2 * \p border. template <typename S> - mln_image_from(S, bool) to_image(const Point_Set<S>& pset); + mln_image_from(S, bool) to_image(const Point_Set<S>& pset, unsigned border = 1); /// Convert a window \p win into a binary image. template <typename W> @@ -126,10 +127,10 @@ # ifndef MLN_INCLUDE_ONLY template <typename S> - mln_image_from(S, bool) to_image(const Point_Set<S>& pset_) + mln_image_from(S, bool) to_image(const Point_Set<S>& pset_, unsigned border) { const S& pset = exact(pset_); - mln_image_from(S, bool) ima(pset.bbox()); + mln_image_from(S, bool) ima(pset.bbox().to_larger(border)); level::fill(ima, false); mln_piter(S) p(pset); for_all(p)