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#include <osmium/area/assembler_legacy.hpp>
#include <osmium/area/multipolygon_collector.hpp>
#include <osmium/area/problem_reporter_ogr.hpp>
#include <osmium/geom/ogr.hpp>
#include <osmium/geom/wkt.hpp>
#include <osmium/handler.hpp>
#include <osmium/handler/node_locations_for_ways.hpp>
#include <osmium/index/map/sparse_mem_array.hpp>
#include <osmium/io/xml_input.hpp>
#include <osmium/visitor.hpp>
#include <gdalcpp.hpp>
#include <cstring>
#include <exception>
#include <fstream>
#include <iostream>
#include <map>
#include <string>
using index_type = osmium::index::map::SparseMemArray<osmium::unsigned_object_id_type, osmium::Location>;
using location_handler_type = osmium::handler::NodeLocationsForWays<index_type>;
struct less_charptr {
bool operator()(const char* a, const char* b) const noexcept {
return std::strcmp(a, b) < 0;
}
}; // less_charptr
using tagmap_type = std::map<const char*, const char*, less_charptr>;
namespace {
tagmap_type create_map(const osmium::TagList& taglist) {
tagmap_type map;
for (const auto& tag : taglist) {
map[tag.key()] = tag.value();
}
return map;
}
} // anonymous namespace
class TestHandler : public osmium::handler::Handler {
gdalcpp::Layer m_layer_point;
gdalcpp::Layer m_layer_lines;
gdalcpp::Layer m_layer_mpoly;
osmium::geom::OGRFactory<> m_ogr_factory;
osmium::geom::WKTFactory<> m_wkt_factory;
std::ofstream m_out;
bool m_first_out{true};
public:
explicit TestHandler(gdalcpp::Dataset& dataset) :
m_layer_point(dataset, "points", wkbPoint),
m_layer_lines(dataset, "lines", wkbLineString),
m_layer_mpoly(dataset, "multipolygons", wkbMultiPolygon),
m_out("multipolygon-tests.json") {
m_layer_point.add_field("id", OFTReal, 10);
m_layer_point.add_field("type", OFTString, 30);
m_layer_lines.add_field("id", OFTReal, 10);
m_layer_lines.add_field("type", OFTString, 30);
m_layer_mpoly.add_field("id", OFTReal, 10);
m_layer_mpoly.add_field("from_type", OFTString, 1);
}
TestHandler(const TestHandler&) = delete;
TestHandler& operator=(const TestHandler&) = delete;
TestHandler(TestHandler&&) = delete;
TestHandler& operator=(TestHandler&&) = delete;
~TestHandler() {
m_out << "\n]\n";
}
void node(const osmium::Node& node) {
gdalcpp::Feature feature{m_layer_point, m_ogr_factory.create_point(node)};
feature.set_field("id", static_cast<double>(node.id()));
feature.set_field("type", node.tags().get_value_by_key("type"));
feature.add_to_layer();
}
void way(const osmium::Way& way) {
try {
gdalcpp::Feature feature{m_layer_lines, m_ogr_factory.create_linestring(way)};
feature.set_field("id", static_cast<double>(way.id()));
feature.set_field("type", way.tags().get_value_by_key("type"));
feature.add_to_layer();
} catch (const osmium::geometry_error&) {
std::cerr << "Ignoring illegal geometry for way " << way.id() << ".\n";
}
}
void area(const osmium::Area& area) {
if (m_first_out) {
m_out << "[\n";
m_first_out = false;
} else {
m_out << ",\n";
}
m_out << "{\n \"test_id\": " << (area.orig_id() / 1000) << ",\n \"area_id\": " << area.id() << ",\n \"from_id\": " << area.orig_id() << ",\n \"from_type\": \"" << (area.from_way() ? "way" : "relation") << "\",\n \"wkt\": \"";
try {
const std::string wkt = m_wkt_factory.create_multipolygon(area);
m_out << wkt << "\",\n \"tags\": {";
const auto tagmap = create_map(area.tags());
bool first = true;
for (const auto& tag : tagmap) {
if (first) {
first = false;
} else {
m_out << ", ";
}
m_out << '"' << tag.first << "\": \"" << tag.second << '"';
}
m_out << "}\n}";
} catch (const osmium::geometry_error&) {
m_out << "INVALID\"\n}";
}
try {
gdalcpp::Feature feature{m_layer_mpoly, m_ogr_factory.create_multipolygon(area)};
feature.set_field("id", static_cast<double>(area.orig_id()));
std::string from_type;
if (area.from_way()) {
from_type = "w";
} else {
from_type = "r";
}
feature.set_field("from_type", from_type.c_str());
feature.add_to_layer();
} catch (const osmium::geometry_error&) {
std::cerr << "Ignoring illegal geometry for area " << area.id() << " created from " << (area.from_way() ? "way" : "relation") << " with id=" << area.orig_id() << ".\n";
}
}
}; // class TestHandler
/* ================================================== */
int main(int argc, char* argv[]) {
if (argc != 2) {
std::cerr << "Usage: " << argv[0] << " INFILE\n";
return 1;
}
try {
const std::string output_format{"SQLite"};
const std::string input_filename{argv[1]};
const std::string output_filename{"multipolygon.db"};
CPLSetConfigOption("OGR_SQLITE_SYNCHRONOUS", "FALSE");
gdalcpp::Dataset dataset{output_format, output_filename, gdalcpp::SRS{}, {"SPATIALITE=TRUE"}};
osmium::area::ProblemReporterOGR problem_reporter{dataset};
osmium::area::AssemblerLegacy::config_type assembler_config;
assembler_config.problem_reporter = &problem_reporter;
assembler_config.check_roles = true;
assembler_config.create_empty_areas = true;
assembler_config.debug_level = 2;
osmium::area::MultipolygonCollector<osmium::area::AssemblerLegacy> collector{assembler_config};
std::cerr << "Pass 1...\n";
osmium::io::Reader reader1{input_filename};
collector.read_relations(reader1);
reader1.close();
std::cerr << "Pass 1 done\n";
index_type index;
location_handler_type location_handler{index};
location_handler.ignore_errors();
TestHandler test_handler{dataset};
std::cerr << "Pass 2...\n";
osmium::io::Reader reader2{input_filename};
osmium::apply(reader2, location_handler, test_handler, collector.handler([&test_handler](const osmium::memory::Buffer& area_buffer) {
osmium::apply(area_buffer, test_handler);
}));
reader2.close();
std::cerr << "Pass 2 done\n";
} catch (const std::exception& e) {
std::cerr << e.what() << '\n';
return 1;
}
return 0;
}
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