area.hpp
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#ifndef OSMIUM_OSM_AREA_HPP
#define OSMIUM_OSM_AREA_HPP
/*
This file is part of Osmium (http://osmcode.org/libosmium).
Copyright 2013-2016 Jochen Topf <jochen@topf.org> and others (see README).
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#include <cassert>
#include <cstdlib>
#include <utility>
#include <osmium/memory/collection.hpp>
#include <osmium/memory/item.hpp>
#include <osmium/osm/item_type.hpp>
#include <osmium/osm/object.hpp>
#include <osmium/osm/types.hpp>
#include <osmium/osm/node_ref_list.hpp>
namespace osmium {
namespace builder {
template <class T> class ObjectBuilder;
} // namespace builder
class OuterRing : public NodeRefList {
public:
static constexpr osmium::item_type itemtype = osmium::item_type::outer_ring;
OuterRing():
NodeRefList(itemtype) {
}
}; // class OuterRing
class InnerRing : public NodeRefList {
public:
static constexpr osmium::item_type itemtype = osmium::item_type::inner_ring;
InnerRing():
NodeRefList(itemtype) {
}
}; // class InnerRing
inline osmium::object_id_type object_id_to_area_id(osmium::object_id_type id, osmium::item_type type) noexcept {
osmium::object_id_type area_id = std::abs(id) * 2;
if (type == osmium::item_type::relation) {
++area_id;
}
return id < 0 ? -area_id : area_id;
}
inline osmium::object_id_type area_id_to_object_id(osmium::object_id_type id) noexcept {
return id / 2;
}
class Area : public OSMObject {
friend class osmium::builder::ObjectBuilder<osmium::Area>;
Area() :
OSMObject(sizeof(Area), osmium::item_type::area) {
}
public:
static constexpr osmium::item_type itemtype = osmium::item_type::area;
bool from_way() const noexcept {
return (positive_id() & 0x1) == 0;
}
osmium::object_id_type orig_id() const noexcept {
return osmium::area_id_to_object_id(id());
}
std::pair<int, int> num_rings() const {
std::pair<int, int> counter { 0, 0 };
for (auto it = cbegin(); it != cend(); ++it) {
switch (it->type()) {
case osmium::item_type::outer_ring:
++counter.first;
break;
case osmium::item_type::inner_ring:
++counter.second;
break;
case osmium::item_type::tag_list:
// ignore tags
break;
case osmium::item_type::undefined:
case osmium::item_type::node:
case osmium::item_type::way:
case osmium::item_type::relation:
case osmium::item_type::area:
case osmium::item_type::changeset:
case osmium::item_type::way_node_list:
case osmium::item_type::relation_member_list:
case osmium::item_type::relation_member_list_with_full_members:
case osmium::item_type::changeset_discussion:
assert(false && "Children of Area can only be outer/inner_ring and tag_list.");
break;
}
}
return counter;
}
bool is_multipolygon() const {
return num_rings().first > 1;
}
osmium::memory::ItemIterator<const osmium::InnerRing> inner_ring_cbegin(const osmium::memory::ItemIterator<const osmium::OuterRing>& it) const {
return it.cast<const osmium::InnerRing>();
}
osmium::memory::ItemIterator<const osmium::InnerRing> inner_ring_cend(const osmium::memory::ItemIterator<const osmium::OuterRing>& it) const {
return std::next(it).cast<const osmium::InnerRing>();
}
}; // class Area
} // namespace osmium
#endif // OSMIUM_OSM_AREA_HPP
osmium::Area::orig_id
osmium::object_id_type orig_id() const noexcept
Definition: area.hpp:136
osmium::item_type::way
osmium::item_type::way_node_list
collection.hpp
osmium::item_type::outer_ring
osmium::Area::from_way
bool from_way() const noexcept
Definition: area.hpp:129
osmium::osm_entity_bits::type
type
Definition: entity_bits.hpp:60
osmium::item_type::tag_list
osmium::item_type::inner_ring
osmium::memory::ItemIterator
Definition: item_iterator.hpp:119
osmium::Area::inner_ring_cbegin
osmium::memory::ItemIterator< const osmium::InnerRing > inner_ring_cbegin(const osmium::memory::ItemIterator< const osmium::OuterRing > &it) const
Definition: area.hpp:192
osmium::item_type::changeset_discussion
osmium::item_type::relation_member_list_with_full_members
osmium::item_type
item_type
Definition: item_type.hpp:43
node_ref_list.hpp
osmium::Area
Definition: area.hpp:113
osmium::item_type::area
object.hpp
osmium::InnerRing
Definition: area.hpp:72
osmium::item_type::relation
types.hpp
item_type.hpp
osmium::object_id_to_area_id
osmium::object_id_type object_id_to_area_id(osmium::object_id_type id, osmium::item_type type) noexcept
Definition: area.hpp:92
osmium::item_type::node
osmium::item_type::undefined
osmium::Area::num_rings
std::pair< int, int > num_rings() const
Definition: area.hpp:145
osmium::Area::inner_ring_cend
osmium::memory::ItemIterator< const osmium::InnerRing > inner_ring_cend(const osmium::memory::ItemIterator< const osmium::OuterRing > &it) const
Definition: area.hpp:203
osmium::item_type::changeset
osmium::object_id_type
int64_t object_id_type
Type for OSM object (node, way, or relation) IDs.
Definition: types.hpp:45
osmium
Namespace for everything in the Osmium library.
Definition: assembler.hpp:59
osmium::Area::is_multipolygon
bool is_multipolygon() const
Definition: area.hpp:181
osmium::area_id_to_object_id
osmium::object_id_type area_id_to_object_id(osmium::object_id_type id) noexcept
Definition: area.hpp:106
osmium::OuterRing::OuterRing
OuterRing()
Definition: area.hpp:62
osmium::OuterRing
Definition: area.hpp:56
item.hpp
osmium::builder::ObjectBuilder
Definition: builder.hpp:186
osmium::NodeRefList
Definition: node_ref_list.hpp:50
osmium::memory::ItemIterator::cast
ItemIterator< T > cast() const
Definition: item_iterator.hpp:151
osmium::item_type::relation_member_list
osmium::InnerRing::InnerRing
InnerRing()
Definition: area.hpp:78
osmium::OSMObject
Definition: object.hpp:58