Ticket #9217: close_polygon_wkt.cpp

// Source from the "problem with wkt io" thread
// http://lists.boost.org/geometry/2013/10/2576.php
#include "boost/geometry.hpp"
#include "boost/geometry/geometries/geometries.hpp"
#include "boost/geometry/io/wkt/wkt.hpp"

using namespace boost::geometry;

// define non-closed polygon type
typedef model::point< double, 2, boost::geometry::cs::cartesian > Point;
typedef model::polygon< Point, false, false> Polygon;

void test(char const* wkt)
{
    std::cout << "input:  " << wkt << std::endl;
    Polygon p;
    read_wkt(wkt, p);

    std::size_t no1 = p.outer().size();
    std::size_t ni1 = p.inners().empty() ? 0 : p.inners().back().size();
    correct(p);
    std::size_t no2 = p.outer().size();
    std::size_t ni2 = p.inners().empty() ? 0 : p.inners().back().size();
    std::cout << "# points: " << no1 << ", " << ni1 << "; after correct: "
              << no2 << ", " << ni2 << std::endl;

    // Check if wkt impose last point to be equal to the first one.
    std::cout << "output: " << boost::geometry::wkt(p) << std::endl;
}

int main()
{
    test("POLYGON((0.0 0.0, 10.0 0.0, 10.0 10.0, 0 10.0, 0.0 0.0))");
    test("POLYGON((0.0 0.0, 10.0 0.0, 10.0 10.0, 0 10.0, 0.0 0.0), (1 1, 5 1, 5 5, 1 5, 1 1))");
    return 0;
}