[Olena-patches] last-svn-commit-890-geb7b2bd Add util::box_intersection.

* scribo/util/box_intersection.hh: New. * scribo/filter/object_links_bbox_overlap.hh: Make use of this new routine. --- scribo/ChangeLog | 9 +++ scribo/scribo/filter/object_links_bbox_overlap.hh | 25 ++-------- .../util/{color_to_hex.hh => box_intersection.hh} | 53 +++++++++++--------- 3 files changed, 43 insertions(+), 44 deletions(-) copy scribo/scribo/util/{color_to_hex.hh => box_intersection.hh} (56%) diff --git a/scribo/ChangeLog b/scribo/ChangeLog index 3c70e89..959746f 100644 --- a/scribo/ChangeLog +++ b/scribo/ChangeLog @@ -1,5 +1,14 @@ 2011-05-26 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Add util::box_intersection. + + * scribo/util/box_intersection.hh: New. + + * scribo/filter/object_links_bbox_overlap.hh: Make use of this new + routine. + +2011-05-26 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Various small fixes in Scribo. * scribo/core/paragraph_info.hh: Add validity information. diff --git a/scribo/scribo/filter/object_links_bbox_overlap.hh b/scribo/scribo/filter/object_links_bbox_overlap.hh index a93d849..29b71ba 100644 --- a/scribo/scribo/filter/object_links_bbox_overlap.hh +++ b/scribo/scribo/filter/object_links_bbox_overlap.hh @@ -41,6 +41,7 @@ # include <scribo/core/object_links.hh> # include <scribo/core/component_set.hh> # include <scribo/filter/object_links_bbox_ratio.hh> +# include <scribo/util/box_intersection.hh> namespace scribo { @@ -80,32 +81,14 @@ namespace scribo const component_set<L>& components = links.components(); object_links<L> output = links.duplicate(); - bool has_intersection; - mln_site(L) pmin, pmax; float ratio_i, ratio_link_i; for_all_links(i, links) if (links.is_linked(i)) { - has_intersection = true; - for (unsigned dim = 0; dim < mln_site_(L)::dim; ++dim) - { - pmin[dim] = math::max(components(i).bbox().pmin()[dim], - components(links(i)).bbox().pmin()[dim]); - pmax[dim] = math::min(components(i).bbox().pmax()[dim], - components(links(i)).bbox().pmax()[dim]); - - if (pmin[dim] > pmax[dim]) - { - has_intersection = false; - break; - } - } - - if (!has_intersection) - continue; - - mln_box(L) interbbox(pmin, pmax); + mln_box(L) + interbbox = scribo::util::box_intersection(components(i).bbox(), + components(links(i)).bbox()); ratio_i = interbbox.nsites() /(float)components(i).bbox().nsites(); ratio_link_i = interbbox.nsites() /(float)components(links(i)).bbox().nsites(); diff --git a/scribo/scribo/util/color_to_hex.hh b/scribo/scribo/util/box_intersection.hh similarity index 56% copy from scribo/scribo/util/color_to_hex.hh copy to scribo/scribo/util/box_intersection.hh index e0ee33f..f090233 100644 --- a/scribo/scribo/util/color_to_hex.hh +++ b/scribo/scribo/util/box_intersection.hh @@ -23,18 +23,17 @@ // exception does not however invalidate any other reasons why the // executable file might be covered by the GNU General Public License. -#ifndef SCRIBO_UTIL_COLOR_TO_HEX_HH -# define SCRIBO_UTIL_COLOR_TO_HEX_HH +#ifndef SCRIBO_UTIL_BOX_INTERSECTION_HH +# define SCRIBO_UTIL_BOX_INTERSECTION_HH /// \file /// -/// Convert hexadecimal encoded colors to value::rgb8. +/// Return the box corresponding to the intersection of two boxes. -#include <cstdio> -#include <iostream> -#include <string.h> -#include <mln/value/rgb8.hh> +#include <mln/core/site_set/box.hh> +#include <mln/math/min.hh> +#include <mln/math/max.hh> namespace scribo { @@ -43,30 +42,38 @@ namespace scribo { using namespace mln; - std::string color_to_hex(const value::rgb8& v); + /// \brief Return the box corresponding to the intersection of two + /// boxes. + /// + /// \return An invalid box if there is no intersection. The box + /// corresponding to the intersection, otherwise. + template <typename P> + box<P> + box_intersection(const box<P>& lhs, const box<P>& rhs); # ifndef MLN_INCLUDE_ONLY - std::string color_to_hex(const value::rgb8& v) + template <typename P> + box<P> + box_intersection(const box<P>& lhs, const box<P>& rhs) { - std::string result = "#"; + trace::entering("scribo::util::box_intersection"); - char buf[3]; + P pmin, pmax; + for (unsigned dim = 0; dim < P::dim; ++dim) + { + pmin[dim] = math::max(lhs.pmin()[dim], rhs.pmin()[dim]); + pmax[dim] = math::min(lhs.pmax()[dim], rhs.pmax()[dim]); - int c = v.red(); - sprintf(buf, "%.2X", c); - result.append(buf); + if (pmin[dim] > pmax[dim]) // No intersection. + return box<P>(); + } - c = v.green(); - sprintf(buf, "%.2X", c); - result.append(buf); + box<P> output(pmin, pmax); - c = v.blue(); - sprintf(buf, "%.2X", c); - result.append(buf); - - return result; + trace::exiting("scribo::util::box_intersection"); + return output; } # endif // ! MLN_INCLUDE_ONLY @@ -75,4 +82,4 @@ namespace scribo } // end of namespace scribo -#endif // ! SCRIBO_UTIL_COLOR_TO_HEX_HH +#endif // ! SCRIBO_UTIL_BOX_INTERSECTION_HH -- 1.5.6.5