git-subtree-dir: third_party/libosmium git-subtree-split: 2282c8450bae55839372a2002db7ca754530d2fc
183 lines
5.9 KiB
C++
183 lines
5.9 KiB
C++
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#include <iostream>
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#include <fstream>
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#include <map>
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#include <gdalcpp.hpp>
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#include <osmium/index/map/sparse_mem_array.hpp>
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#include <osmium/area/assembler.hpp>
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#include <osmium/area/multipolygon_collector.hpp>
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#include <osmium/area/problem_reporter_ogr.hpp>
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#include <osmium/geom/ogr.hpp>
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#include <osmium/geom/wkt.hpp>
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#include <osmium/handler.hpp>
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#include <osmium/handler/node_locations_for_ways.hpp>
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#include <osmium/io/xml_input.hpp>
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#include <osmium/visitor.hpp>
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typedef osmium::index::map::SparseMemArray<osmium::unsigned_object_id_type, osmium::Location> index_type;
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typedef osmium::handler::NodeLocationsForWays<index_type> location_handler_type;
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struct less_charptr {
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bool operator()(const char* a, const char* b) const {
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return std::strcmp(a, b) < 0;
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}
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}; // less_charptr
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typedef std::map<const char*, const char*, less_charptr> tagmap_type;
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inline tagmap_type create_map(const osmium::TagList& taglist) {
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tagmap_type map;
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for (auto& tag : taglist) {
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map[tag.key()] = tag.value();
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}
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return map;
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}
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class TestHandler : public osmium::handler::Handler {
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gdalcpp::Layer m_layer_point;
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gdalcpp::Layer m_layer_lines;
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gdalcpp::Layer m_layer_mpoly;
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osmium::geom::OGRFactory<> m_ogr_factory;
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osmium::geom::WKTFactory<> m_wkt_factory;
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std::ofstream m_out;
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bool m_first_out {true};
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public:
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explicit TestHandler(gdalcpp::Dataset& dataset) :
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m_layer_point(dataset, "points", wkbPoint),
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m_layer_lines(dataset, "lines", wkbLineString),
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m_layer_mpoly(dataset, "multipolygons", wkbMultiPolygon),
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m_out("multipolygon-tests.json") {
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m_layer_point.add_field("id", OFTReal, 10);
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m_layer_point.add_field("type", OFTString, 30);
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m_layer_lines.add_field("id", OFTReal, 10);
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m_layer_lines.add_field("type", OFTString, 30);
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m_layer_mpoly.add_field("id", OFTReal, 10);
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m_layer_mpoly.add_field("from_type", OFTString, 1);
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}
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~TestHandler() {
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m_out << "\n]\n";
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}
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void node(const osmium::Node& node) {
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gdalcpp::Feature feature(m_layer_point, m_ogr_factory.create_point(node));
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feature.set_field("id", static_cast<double>(node.id()));
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feature.set_field("type", node.tags().get_value_by_key("type"));
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feature.add_to_layer();
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}
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void way(const osmium::Way& way) {
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try {
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gdalcpp::Feature feature(m_layer_lines, m_ogr_factory.create_linestring(way));
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feature.set_field("id", static_cast<double>(way.id()));
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feature.set_field("type", way.tags().get_value_by_key("type"));
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feature.add_to_layer();
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} catch (osmium::geometry_error&) {
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std::cerr << "Ignoring illegal geometry for way " << way.id() << ".\n";
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}
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}
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void area(const osmium::Area& area) {
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if (m_first_out) {
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m_out << "[\n";
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m_first_out = false;
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} else {
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m_out << ",\n";
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}
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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\": \"";
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try {
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std::string wkt = m_wkt_factory.create_multipolygon(area);
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m_out << wkt << "\",\n \"tags\": {";
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auto tagmap = create_map(area.tags());
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bool first = true;
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for (auto& tag : tagmap) {
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if (first) {
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first = false;
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} else {
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m_out << ", ";
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}
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m_out << '"' << tag.first << "\": \"" << tag.second << '"';
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}
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m_out << "}\n}";
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} catch (osmium::geometry_error&) {
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m_out << "INVALID\"\n}";
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}
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try {
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gdalcpp::Feature feature(m_layer_mpoly, m_ogr_factory.create_multipolygon(area));
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feature.set_field("id", static_cast<double>(area.orig_id()));
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std::string from_type;
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if (area.from_way()) {
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from_type = "w";
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} else {
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from_type = "r";
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}
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feature.set_field("from_type", from_type.c_str());
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feature.add_to_layer();
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} catch (osmium::geometry_error&) {
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std::cerr << "Ignoring illegal geometry for area " << area.id() << " created from " << (area.from_way() ? "way" : "relation") << " with id=" << area.orig_id() << ".\n";
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}
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}
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}; // class TestHandler
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/* ================================================== */
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int main(int argc, char* argv[]) {
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if (argc != 2) {
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std::cerr << "Usage: " << argv[0] << " INFILE\n";
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exit(1);
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}
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std::string output_format("SQLite");
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std::string input_filename(argv[1]);
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std::string output_filename("multipolygon.db");
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CPLSetConfigOption("OGR_SQLITE_SYNCHRONOUS", "FALSE");
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gdalcpp::Dataset dataset{output_format, output_filename, gdalcpp::SRS{}, { "SPATIALITE=TRUE" }};
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osmium::area::ProblemReporterOGR problem_reporter(dataset);
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osmium::area::Assembler::config_type assembler_config(&problem_reporter);
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assembler_config.enable_debug_output();
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osmium::area::MultipolygonCollector<osmium::area::Assembler> collector(assembler_config);
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std::cerr << "Pass 1...\n";
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osmium::io::Reader reader1(input_filename);
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collector.read_relations(reader1);
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reader1.close();
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std::cerr << "Pass 1 done\n";
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index_type index;
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location_handler_type location_handler(index);
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location_handler.ignore_errors();
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TestHandler test_handler(dataset);
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std::cerr << "Pass 2...\n";
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osmium::io::Reader reader2(input_filename);
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osmium::apply(reader2, location_handler, test_handler, collector.handler([&test_handler](const osmium::memory::Buffer& area_buffer) {
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osmium::apply(area_buffer, test_handler);
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}));
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reader2.close();
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std::cerr << "Pass 2 done\n";
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}
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