2006-10-24 Thierry GERAUD &lt;theo(a)tegucigalpa.lrde.epita.fr&gt; Add point-wise values. * tests/core/pw_value.cc: New. * tests/core/Makefile.am: Update. * oln/core/gen/pw_value.hh: New. * oln/Makefile.am: Update. Index: tests/core/pw_value.cc =================================================================== --- tests/core/pw_value.cc (revision 0) +++ tests/core/pw_value.cc (revision 0) @@ -0,0 +1,50 @@ +// Copyright (C) 2006 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. + +/// Test pw_value. + +#include <cassert> + +#include <oln/basics2d.hh> +#include <oln/core/gen/pw_value.hh> + + + +int main() +{ + using namespace oln; + + point2d p(0,0); + image2d<int> ima1(3,3); + ima1(p) = 1; + + image2d<float> ima2(3,3); + ima2(p) = 2.3; + + double d = ((pw_value(ima1) + 4 * pw_value(ima2)) / .2)(p); + assert(d > 50.9999 and d < 51.0001); +} Index: tests/core/Makefile.am =================================================================== --- tests/core/Makefile.am (revision 675) +++ tests/core/Makefile.am (working copy) @@ -27,6 +27,7 @@ image2d \ image3d \ npoints \ + pw_value \ window2d \ \ at @@ -40,6 +41,7 @@ image2d_SOURCES = image2d.cc image3d_SOURCES = image3d.cc npoints_SOURCES = npoints.cc +pw_value_SOURCES = pw_value.cc window2d_SOURCES = window2d.cc # Methods. Index: oln/core/gen/pw_value.hh =================================================================== --- oln/core/gen/pw_value.hh (revision 0) +++ oln/core/gen/pw_value.hh (revision 0) @@ -0,0 +1,106 @@ +// Copyright (C) 2005, 2006 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 OLN_CORE_GEN_PW_VALUE_HH +# define OLN_CORE_GEN_PW_VALUE_HH + +# include <oln/core/abstract/image.hh> +# include <xtd/abstract/meta_nary_fun.hh> +# include <xtd/math.hh> + + + +namespace xtd +{ + + // Fwd decl. + template <typename I> + class pw_value_type; + + + template <typename I, typename A> + struct res_< pw_value_type<I>, A > + { + typedef oln_rvalue(I) ret; + }; + + + template <typename I> + class pw_value_type : public xtd::abstract::meta_nary_fun_< 1, pw_value_type<I> > + { + public: + + pw_value_type(const I& ima); + + template <typename P> + oln_rvalue(I) impl_calc(const P& p) const; + + protected: + + const I& ima_; + }; + + +# ifndef OLN_INCLUDE_ONLY + + template <typename I> + template <typename A> + oln_rvalue(I) + pw_value_type<I>::impl_calc(const A& a) const + { + mlc::assert_< mlc_is_a(A, oln::abstract::point) >::check(); + return ima_(a); + } + + template <typename I> + pw_value_type<I>::pw_value_type(const I& ima) + : ima_(ima) + { + } + +# endif + + +} // end of namespace xtd + + +namespace oln +{ + + template <typename I> + xtd::m1expr_< xtd::pw_value_type<I>, xtd::arg_<1> > + pw_value(const abstract::image<I>& ima) + { + xtd::pw_value_type<I> pwv(ima.exact()); + using xtd::_1; + return pwv(_1); // expects one argument (for instance a point) or an expression :) + } + +} // end of namespace oln + + +#endif // ! OLN_CORE_GEN_PW_VALUE_HH Index: oln/Makefile.am =================================================================== --- oln/Makefile.am (revision 675) +++ oln/Makefile.am (working copy) @@ -123,6 +123,7 @@ core/gen/grid.hh \ core/gen/mapimage.hh \ core/gen/neighb.hh \ + core/gen/pw_value.hh \ core/gen/topo_add_nbh.hh \ core/gen/topo_bbox.hh \ core/gen/topo_lbbox.hh \