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#include "generator/holes.hpp"
#include "generator/intermediate_data.hpp"
#include "generator/osm_element.hpp"
#include <utility>
namespace generator
{
HolesAccumulator::HolesAccumulator(cache::IntermediateDataReader & cache) :
m_merger(cache)
{
}
FeatureBuilder1::Geometry & HolesAccumulator::GetHoles()
{
ASSERT(m_holes.empty(), ("It is allowed to call only once."));
m_merger.ForEachArea(false, [this](FeatureBuilder1::PointSeq const & v,
std::vector<uint64_t> const & /* way osm ids */)
{
m_holes.push_back(std::move(v));
});
return m_holes;
}
HolesProcessor::HolesProcessor(uint64_t id, cache::IntermediateDataReader & cache) :
m_id(id),
m_holes(cache)
{
}
base::ControlFlow HolesProcessor::operator() (uint64_t /* id */, RelationElement const & e)
{
std::string const type = e.GetType();
if (!(type == "multipolygon" || type == "boundary"))
return base::ControlFlow::Continue;
std::string role;
if (e.FindWay(m_id, role) && role == "outer")
{
e.ForEachWay(*this);
// Stop processing. Assume that "outer way" exists in one relation only.
return base::ControlFlow::Break;
}
return base::ControlFlow::Continue;
}
void HolesProcessor::operator() (uint64_t id, std::string const & role)
{
if (id != m_id && role == "inner")
m_holes(id);
}
HolesRelation::HolesRelation(cache::IntermediateDataReader & cache) :
m_holes(cache),
m_outer(cache)
{
}
void HolesRelation::Build(OsmElement const * p)
{
// Iterate ways to get 'outer' and 'inner' geometries.
for (auto const & e : p->Members())
{
if (e.type != OsmElement::EntityType::Way)
continue;
if (e.role == "outer")
m_outer.AddWay(e.ref);
else if (e.role == "inner")
m_holes(e.ref);
}
}
} // namespace generator
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