/**
* Add a node to the block.
*
* @param node The node to add.
*/
void write_node(const shared_ptr<Osmium::OSM::Node const>& node) {
OSMPBF::Node* pbf_node = pbf_nodes->add_nodes();
// copy the common meta-info from the osmium-object to the pbf-object
apply_common_info(node, pbf_node);
// modify lat & lon to integers, respecting the block's granularity and copy
// the ints to the pbf-object
pbf_node->set_lon(lonlat2int(node->get_lon()));
pbf_node->set_lat(lonlat2int(node->get_lat()));
}
/**
* Add a way to the block.
*
* @param way The way to add.
*/
void write_way(const shared_ptr<Osmium::OSM::Way const>& way) {
// add a way to the group
OSMPBF::Way* pbf_way = pbf_ways->add_ways();
// copy the common meta-info from the osmium-object to the pbf-object
apply_common_info(way, pbf_way);
// last way-node-id used for delta-encoding
Delta<int64_t> delta_id;
// iterate over all way-nodes
for (int i=0, l = way->node_count(); i<l; i++) {
// copy the way-node-id, delta encoded
pbf_way->add_refs(delta_id.update(way->get_node_id(i)));
}
}
/**
* Add a relation to the block.
*
* @param relation The relation to add.
*/
void write_relation(const shared_ptr<Osmium::OSM::Relation const>& relation) {
// add a relation to the group
OSMPBF::Relation* pbf_relation = pbf_relations->add_relations();
// copy the common meta-info from the osmium-object to the pbf-object
apply_common_info(relation, pbf_relation);
Delta<int64_t> delta_id;
// iterate over all relation-members
for (int i=0, l=relation->members().size(); i<l; i++) {
// save a pointer to the osmium-object representing the relation-member
const Osmium::OSM::RelationMember* mem = relation->get_member(i);
// record the relation-member role to the interim stringtable and copy the
// interim string-id to the pbf-object
pbf_relation->add_roles_sid(string_table.record_string(mem->role()));
// copy the relation-member-id, delta encoded
pbf_relation->add_memids(delta_id.update(mem->ref()));
// copy the relation-member-type, mapped to the OSMPBF enum
switch (mem->type()) {
case 'n':
pbf_relation->add_types(OSMPBF::Relation::NODE);
break;
case 'w':
pbf_relation->add_types(OSMPBF::Relation::WAY);
break;
case 'r':
pbf_relation->add_types(OSMPBF::Relation::RELATION);
break;
default:
throw std::runtime_error("Unknown relation member type: " + mem->type());
}
}
// count up blob size by the size of the Relation
primitive_block_size += pbf_relation->ByteSize();
}
