[Olena-patches] last-svn-commit-18-gce6a424 mln/draw/dashed_line.hh: New draw line routine.

--- milena/ChangeLog | 4 ++ milena/mln/draw/{line.hh => dashed_line.hh} | 60 ++++++++++++++++++--------- 2 files changed, 44 insertions(+), 20 deletions(-) copy milena/mln/draw/{line.hh => dashed_line.hh} (61%) diff --git a/milena/ChangeLog b/milena/ChangeLog index fae42e1..bcaf644 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,3 +1,7 @@ +2010-03-11 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + + * mln/draw/dashed_line.hh: New draw line routine. + 2010-02-24 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; Add white gaussian noise function. diff --git a/milena/mln/draw/line.hh b/milena/mln/draw/dashed_line.hh similarity index 61% copy from milena/mln/draw/line.hh copy to milena/mln/draw/dashed_line.hh index 528dce3..6b0d244 100644 --- a/milena/mln/draw/line.hh +++ b/milena/mln/draw/dashed_line.hh @@ -1,5 +1,4 @@ -// Copyright (C) 2007, 2008, 2009 EPITA Research and Development -// Laboratory (LRDE) +// Copyright (C) 2010 EPITA Research and Development Laboratory (LRDE) // // This file is part of Olena. // @@ -17,21 +16,22 @@ // // As a special exception, you may use this file as part of a free // software project without restriction. Specifically, if other files -// instantiate templates or use macros or inline functions from this +// instantiate templates or use macros or indashed_line 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_LINE_HH -# define MLN_DRAW_LINE_HH +#ifndef MLN_DRAW_DASHED_LINE_HH +# define MLN_DRAW_DASHED_LINE_HH /// \file /// -/// Draw a line in an image. -/// \fixme Add specializations for horizontal lines (use pointers/memset). +/// Draw a dashed_line in an image. +/// \fixme Add specializations for horizontal dashed_lines (use pointers/memset). +# include <mln/core/concept/function.hh> # include <mln/core/concept/image.hh> # include <mln/core/site_set/p_line2d.hh> # include <mln/core/image/imorph/safe.hh> @@ -46,12 +46,12 @@ namespace mln namespace draw { - /*! Draw a line at level \p v in image \p ima between the points - * \p beg and \p end. + /*! Draw a dashed line at level \p v in image \p ima between the + * points \p beg and \p end. * * \param[in,out] ima The image to be drawn. - * \param[in] beg The start point to drawn line. - * \param[in] end The end point to drawn line. + * \param[in] beg The start point to drawn dashed_line. + * \param[in] end The end point to drawn dashed_line. * \param[in] v The value to assign to all drawn pixels. * * \pre \p ima has to be initialized. @@ -60,27 +60,47 @@ namespace mln * */ template <typename I> - void line(Image<I>& ima, - const mln_psite(I)& beg, const mln_psite(I)& end, - const mln_value(I)& v); + void dashed_line(Image<I>& ima, + const mln_psite(I)& beg, const mln_psite(I)& end, + const mln_value(I)& v); # ifndef MLN_INCLUDE_ONLY + namespace internal + { + + template <typename I, unsigned dim> + struct dashed_line_f : Function_v2b<dashed_line_f<I, dim> > + { + typedef bool result; + + bool operator()(const mln_site(I)& p) const + { + return p[dim] % 2; + } + + }; + + } // end of namespace mln::draw::internal + + + template <typename I> inline - void line(Image<I>& ima_, - const mln_psite(I)& beg, const mln_psite(I)& end, - const mln_value(I)& v) + void dashed_line(Image<I>& ima_, + const mln_psite(I)& beg, const mln_psite(I)& end, + const mln_value(I)& v) { I& ima = exact(ima_); mln_precondition(ima.is_valid()); + if (! ima.has(beg)) trace::warning("Begin site is not part of the given image."); if (! ima.has(end)) trace::warning("End site is not part of the given image."); - data::paste(pw::cst(v) | p_line2d(beg, end), - safe(ima).rw()); + + data::fill(((ima | p_line2d(beg, end)).rw() | internal::dashed_line_f<I, 1>()).rw(), v); } # endif // ! MLN_INCLUDE_ONLY @@ -90,4 +110,4 @@ namespace mln } // end of namespace mln -#endif // ! MLN_DRAW_LINE_HH +#endif // ! MLN_DRAW_DASHED_LINE_HH -- 1.5.6.5