sij/mapnik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

make geometry_correct more flexible but harder to misuse

Browse source
This commit is contained in:
Dane Springmeyer 2015-03-24 18:43:05 -07:00
parent 93e825d727
commit 834a74b1ed
1 changed files with 14 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
include/mapnik/geometry_correct.hpp
View file

@ -27,6 +27,8 @@
#include <mapnik/geometry_adapters.hpp>
#include <boost/geometry/algorithms/correct.hpp>
#include <type_traits>
namespace mapnik { namespace geometry {
namespace detail {
@ -35,6 +37,11 @@ struct geometry_correct
{
using result_type = void;
result_type operator() (geometry & geom) const
{
mapnik::util::apply_visitor(*this, geom);
}
result_type operator() (geometry_collection & collection) const
{
for (auto & geom : collection)
@ -45,12 +52,12 @@ struct geometry_correct
result_type operator() (polygon & poly) const
{
return boost::geometry::correct(poly);
boost::geometry::correct(poly);
}
result_type operator() (multi_polygon & multi_poly) const
{
return boost::geometry::correct(multi_poly);
boost::geometry::correct(multi_poly);
}
template <typename T>
@ -58,13 +65,16 @@ struct geometry_correct
{
//no-op
}
};
}
inline void correct(mapnik::geometry::geometry & geom)
template <typename GeomType>
inline void correct(GeomType & geom)
{
return mapnik::util::apply_visitor(detail::geometry_correct(), geom);
static_assert(!std::is_const<GeomType>::value,"mapnik::geometry::correct on const& is invalid");
detail::geometry_correct()(geom);
}
}}