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