mirror of
https://github.com/mapnik/mapnik.git
synced 2026-01-25 16:47:07 +00:00
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
// mapnik
|
|
#include <mapnik/simplify.hpp>
|
|
|
|
#include <mapnik/warning.hpp>
|
|
MAPNIK_DISABLE_WARNING_PUSH
|
|
#include <mapnik/warning_ignore.hpp>
|
|
#include <boost/assign/list_of.hpp>
|
|
#include <boost/bimap.hpp>
|
|
MAPNIK_DISABLE_WARNING_POP
|
|
|
|
namespace mapnik {
|
|
|
|
using simplify_algorithm_lookup_type = boost::bimap<simplify_algorithm_e, std::string>;
|
|
static simplify_algorithm_lookup_type const simplify_lookup =
|
|
boost::assign::list_of<simplify_algorithm_lookup_type::relation>(radial_distance, "radial-distance")(
|
|
douglas_peucker,
|
|
"douglas-peucker")(visvalingam_whyatt, "visvalingam-whyatt")(zhao_saalfeld, "zhao-saalfeld");
|
|
|
|
std::optional<simplify_algorithm_e> simplify_algorithm_from_string(std::string const& name)
|
|
{
|
|
simplify_algorithm_lookup_type::right_const_iterator right_iter = simplify_lookup.right.find(name);
|
|
if (right_iter != simplify_lookup.right.end())
|
|
{
|
|
return right_iter->second;
|
|
}
|
|
return std::nullopt;
|
|
}
|
|
|
|
std::optional<std::string> simplify_algorithm_to_string(simplify_algorithm_e value)
|
|
{
|
|
simplify_algorithm_lookup_type::left_const_iterator left_iter = simplify_lookup.left.find(value);
|
|
if (left_iter != simplify_lookup.left.end())
|
|
{
|
|
return left_iter->second;
|
|
}
|
|
return std::nullopt;
|
|
}
|
|
|
|
} // namespace mapnik
|