C++ (Cpp) Layer::start_transaction Exemples

Exemple #1

    explicit CoastlineWaysHandler(const std::string& db_filename) :
        m_length(0.0),
        m_dataset("SQLite", db_filename, gdalcpp::SRS{}, {"SPATIALITE=TRUE", "INIT_WITH_EPSG=no" }),
        m_layer_ways(m_dataset, "ways", wkbLineString) {

        m_layer_ways.add_field("way_id", OFTString, 10);
        m_layer_ways.add_field("name",   OFTString, 100);
        m_layer_ways.add_field("source", OFTString, 255);
        m_layer_ways.add_field("bogus",  OFTString, 1);
        m_layer_ways.start_transaction();
    }