[Olena-patches] 2033: Add the ability to plot a point (small cross).

https://svn.lrde.epita.fr/svn/oln/trunk/milena Index: ChangeLog from Ugo Jardonnet &lt;jardonnet(a)lrde.epita.fr&gt; Add the ability to plot a point (small cross). * mln/draw/plot.hh: New. Plot a point. * mln/draw/all.hh: Update. Add plot.hh. all.hh | 1 plot.hh | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 95 insertions(+) Index: mln/draw/plot.hh --- mln/draw/plot.hh (revision 0) +++ mln/draw/plot.hh (revision 0) @@ -0,0 +1,94 @@ +// Copyright (C) 2007 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 inplot 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_PLOT_HH +# define MLN_DRAW_PLOT_HH + +/*! \file mln/draw/plot.hh + * + * \brief Plot a point (small cross) in an image. + */ + +# include <mln/core/concept/image.hh> +# include <mln/core/line2d.hh> +# include <mln/level/paste.hh> +# include <mln/pw/image.hh> +# include <mln/pw/cst.hh> + + +namespace mln +{ + + namespace draw + { + + /*! Plot a point 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] p The point to be plotted. + * \param[in] v The value to assign to all drawn pixels. + * + * \pre \p ima has to be initialized. + * \pre \p ima has \p p. + * + */ + template <typename I> + void plot(Image<I>& ima, + const mln_point(I)& p, + const mln_value(I)& v); + + +# ifndef MLN_INCLUDE_ONLY + + template <typename I> + inline + void plot(Image<I>& ima, + const mln_point(I)& p, + const mln_value(I)& v) + { + mln_precondition(exact(ima).has_data()); + mln_precondition(exact(ima).has(p)); + + for (unsigned i = 0; i < I::point::dim; i++) + { + mln_point(I) beg = p, end = p; + beg[i] = beg[i] - 1; + end[i] = end[i] + 1; + level::paste(pw::cst(v) | line2d(beg, end), + ima); + } + } + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::draw + +} // end of namespace mln + + +#endif // ! MLN_DRAW_PLOT_HH Index: mln/draw/all.hh --- mln/draw/all.hh (revision 2032) +++ mln/draw/all.hh (working copy) @@ -46,5 +46,6 @@ # include <mln/draw/graph.hh> # include <mln/draw/label.hh> # include <mln/draw/line.hh> +# include <mln/draw/plot.hh> #endif // ! MLN_DRAW_ALL_HH