URL: https://svn.lrde.epita.fr/svn/oln/trunk/milena ChangeLog: 2008-01-15 Matthieu Garrigues <garrigues@lrde.epita.fr> * mln/draw/box.hh: New, Add a routine to draw a box. --- box.hh | 100 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) Index: trunk/milena/mln/draw/box.hh =================================================================== --- trunk/milena/mln/draw/box.hh (revision 0) +++ trunk/milena/mln/draw/box.hh (revision 1663) @@ -0,0 +1,100 @@ +// Copyright (C) 2007,2008 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 51 Franklin Street, Fifth Floor, +// Boston, MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef MLN_DRAW_BOX_HH +# define MLN_DRAW_BOX_HH + +/*! \file mln/draw/box.hh + * + * \brief Draw a box in an image. + */ + +# include <mln/core/concept/image.hh> +# include <mln/core/box2d.hh> +# include <mln/level/paste.hh> +# include <mln/draw/line.hh> +# include <mln/pw/image.hh> +# include <mln/pw/cst.hh> + + +namespace mln +{ + + namespace draw + { + + /*! Draw a box at value \p v in image \p ima + * + * \param[in,out] ima The image to be drawn. + * \param[in] b the boxto draw. + * \param[in] v The value to assign to all drawn pixels. + * + * \pre \p ima has to be initialized. + * \pre \p ima has \p beg. + * \pre \p ima has \p end. + * + */ + template <typename I, typename B> + void box(Image<I>& ima, + const Box<B>& b, + const mln_value(I)& v); + + +# ifndef MLN_INCLUDE_ONLY + + template <typename I, typename B> + inline + void box(Image<I>& ima, + const Box<B>& b, + const mln_value(I)& v) + { + mln_precondition(exact(ima).has_data()); + + mln_point(I) pmin = exact(b).pmin(); + mln_point(I) pmax = exact(b).pmax(); + + mln_precondition(exact(ima).has(pmin) && exact(ima).has(pmax)); + + mln_point(I) p1 (pmin[0], pmin[1]); + mln_point(I) p2 (pmax[0], pmin[1]); + mln_point(I) p3 (pmin[0], pmax[1]); + mln_point(I) p4 (pmax[0], pmax[1]); + + draw::line (ima, p1, p2, v); + draw::line (ima, p2, p4, v); + draw::line (ima, p4, p3, v); + draw::line (ima, p3, p1, v); + } + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::draw + +} // end of namespace mln + + +#endif // ! MLN_DRAW_BOX_HH