void
QcOsmPbfReader::read_osm_data()
{
// tell about the OSMData blob
qDebug() << " OSMData";
// parse the PrimitiveBlock from the blob
if (!m_primitive_block.ParseFromArray(m_unpack_buffer, m_buffer_size))
qCritical() << "unable to parse primitive block";
// tell about the block's meta info
m_granularity = m_primitive_block.granularity(); // default: 100
m_latitude_offset = m_primitive_block.lat_offset(); // default: 0
m_longitude_offset = m_primitive_block.lon_offset(); // default: 0
m_date_granularity = m_primitive_block.date_granularity(); // default: 1000
// qDebug().nospace() << " granularity: " << m_granularity;
// qDebug().nospace() << " lat_offset: " << m_latitude_offset;
// qDebug().nospace() << " lon_offset: " << m_longitude_offset;
// qDebug().nospace() << " date_granularity: " << m_date_granularity;
// tell about the stringtable
m_string_table.clear();
OSMPBF::StringTable string_table = m_primitive_block.stringtable();
qDebug().nospace() << " stringtable: " << string_table.s_size() << " items";
for (int i = 0; i < string_table.s_size(); i++) {
QString string = string_table.s(i).c_str();
// qDebug().nospace() << " string[" << i << "] " << string ;
m_string_table << string;
}
// number of PrimitiveGroups
int number_of_primitive_groups = m_primitive_block.primitivegroup_size();
m_number_of_primitive_groups += number_of_primitive_groups;
qDebug().nospace() << " primitivegroups: " << number_of_primitive_groups << " groups";
// iterate over all PrimitiveGroups
for (int i = 0, l = number_of_primitive_groups; i < l; i++) {
/* A PrimitiveGroup MUST NEVER contain different types of
* objects. So either it contains many Node messages, or a
* DenseNode message, or many Way messages, or many Relation
* messages, or many ChangeSet messages.
*/
// one PrimitiveGroup from the the Block
OSMPBF::PrimitiveGroup primitive_group = m_primitive_block.primitivegroup(i);
bool found_items = false;
// tell about nodes
int number_of_nodes = primitive_group.nodes_size();
if (number_of_nodes > 0) {
found_items = true;
m_number_of_node_primitive_groups++;
m_number_of_nodes += number_of_nodes;
qDebug().nospace() << " primitive nodes: " << number_of_nodes;
if (m_read_nodes)
read_nodes(primitive_group);
}
// tell about dense nodes
if (primitive_group.has_dense()) {
found_items = true;
m_number_of_dense_node_primitive_groups++;
int number_of_nodes = primitive_group.dense().id_size();
m_number_of_nodes += number_of_nodes;
qDebug().nospace() << " primitive dense nodes: " << number_of_nodes;
if (m_read_nodes)
read_dense_nodes(primitive_group);
}
// tell about ways
if (primitive_group.ways_size() > 0) {
found_items = true;
m_number_of_way_primitive_groups++;
int number_of_ways = primitive_group.ways_size();
m_number_of_ways += number_of_ways;
qDebug().nospace() << " primitive ways: " << number_of_ways;
if (m_read_ways)
read_ways(primitive_group);
}
// tell about relations
if (primitive_group.relations_size() > 0) {
found_items = true;
m_number_of_relation_primitive_groups++;
int number_of_relations = primitive_group.relations_size();
m_number_of_relations += number_of_relations;
qDebug().nospace() << " primitive relations: " << primitive_group.relations_size();
if (m_read_relations)
read_relations(primitive_group);
}
if (!found_items)
qWarning() << " contains no items";
}
}
void read_relations(TSource& source) {
read_relations(std::begin(source), std::end(source));
source.close();
}
