Index: olena/ChangeLog from Astrid Wang <astrid@lrde.epita.fr> * oln/core/point2d.hxx: Fix member function minus(). * oln/core/abstract/dpoint.hh: Add member function norm2(). Index: olena/oln/core/abstract/dpoint.hh --- olena/oln/core/abstract/dpoint.hh Thu, 07 Aug 2003 02:08:21 +0200 david (oln/d/28_dpoint.hh 1.16 640) +++ olena/oln/core/abstract/dpoint.hh Mon, 19 Jan 2004 17:49:12 +0100 astrid (oln/d/28_dpoint.hh 1.16 640) @@ -30,6 +30,7 @@ # include <mlc/type.hh> # include <oln/core/coord.hh> +# include <ntg/real/builtin_float.hh> namespace oln { @@ -135,6 +136,16 @@ return true; } + ntg::float_d + norm2(void) const + { + double norm = 0; + + for (unsigned i = 0; i < dim; ++i) + norm += nth(i) * nth(i); + return sqrt(norm); + } + static std::string name() { Index: olena/oln/core/point2d.hxx --- olena/oln/core/point2d.hxx Mon, 28 Jul 2003 14:14:03 +0200 david (oln/c/29_point2d.hx 1.5 640) +++ olena/oln/core/point2d.hxx Mon, 19 Jan 2004 16:44:56 +0100 astrid (oln/c/29_point2d.hx 1.5 640) @@ -114,7 +114,7 @@ inline point2d point2d::minus() const { - point2d p(row(), col()); + point2d p(-row(), -col()); return p; } -- astrid