109 lines
4.0 KiB
C++
109 lines
4.0 KiB
C++
#ifndef OSMIUM_HANDLER_OBJECT_RELATIONS_HPP
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#define OSMIUM_HANDLER_OBJECT_RELATIONS_HPP
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/*
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This file is part of Osmium (http://osmcode.org/libosmium).
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Copyright 2013-2017 Jochen Topf <jochen@topf.org> and others (see README).
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#include <osmium/handler.hpp>
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#include <osmium/index/multimap.hpp>
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#include <osmium/osm/node_ref.hpp>
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#include <osmium/osm/item_type.hpp>
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#include <osmium/osm/relation.hpp>
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#include <osmium/osm/types.hpp>
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#include <osmium/osm/way.hpp>
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namespace osmium {
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namespace handler {
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/**
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* This handler updates the indexes given to the constructor with
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* the relations between objects.
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*
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* Note: This handler will only work if either all object IDs are
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* positive or all object IDs are negative.
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*/
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class ObjectRelations : public osmium::handler::Handler {
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using index_type = osmium::index::multimap::Multimap<unsigned_object_id_type, unsigned_object_id_type>;
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index_type& m_index_n2w;
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index_type& m_index_n2r;
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index_type& m_index_w2r;
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index_type& m_index_r2r;
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public:
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explicit ObjectRelations(index_type& n2w, index_type& n2r, index_type& w2r, index_type& r2r) :
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m_index_n2w(n2w),
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m_index_n2r(n2r),
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m_index_w2r(w2r),
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m_index_r2r(r2r) {
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}
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ObjectRelations(const ObjectRelations&) = delete;
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ObjectRelations& operator=(const ObjectRelations&) = delete;
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~ObjectRelations() noexcept = default;
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void way(const osmium::Way& way) {
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for (const auto& node_ref : way.nodes()) {
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m_index_n2w.set(node_ref.positive_ref(), way.positive_id());
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}
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}
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void relation(const osmium::Relation& relation) {
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for (const auto& member : relation.members()) {
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switch (member.type()) {
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case osmium::item_type::node:
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m_index_n2r.set(member.positive_ref(), relation.positive_id());
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break;
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case osmium::item_type::way:
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m_index_w2r.set(member.positive_ref(), relation.positive_id());
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break;
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case osmium::item_type::relation:
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m_index_r2r.set(member.positive_ref(), relation.positive_id());
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break;
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default:
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break;
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}
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}
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}
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}; // class ObjectRelations
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} // namespace handler
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} // namespace osmium
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#endif // OSMIUM_HANDLER_OBJECT_RELATIONS_HPP
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