CGAL 5.6.3 - 2D Polygons

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Stream_support/Polygon_WKT.cpp
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
#include <CGAL/IO/WKT.h>
#include <iostream>
#include <fstream>
#include <deque>
typedef CGAL::Exact_predicates_exact_constructions_kernel Kernel;
int main(int argc, char* argv[])
{
typedef CGAL::Polygon_with_holes_2<Kernel> Polygon;
typedef std::deque<Polygon> MultiPolygon;
{
std::ifstream is((argc>1)?argv[1]:"data/polygons.wkt");
std::list<Polygon> polys;
do
{
Polygon p;
CGAL::IO::read_polygon_WKT(is, p);
if(!p.outer_boundary().is_empty())
polys.push_back(p);
}while(is.good() && !is.eof());
for(Polygon p : polys)
std::cout<<p<<std::endl;
}
{
std::ifstream is((argc>2)?argv[2]:"data/multipolygon.wkt");
MultiPolygon mp;
CGAL::IO::read_multi_polygon_WKT(is, mp);
for(Polygon p : mp)
std::cout<<p<<std::endl;
}
return 0;
}
CGAL::Exact_predicates_exact_constructions_kernel
CGAL::Polygon_with_holes_2
The class Polygon_with_holes_2 models the concept GeneralPolygonWithHoles_2.
Definition: Polygon_with_holes_2.h:43
CGAL::IO::read_polygon_WKT
bool read_polygon_WKT(std::istream &in, Polygon &polygon)
CGAL::IO::read_multi_polygon_WKT
bool read_multi_polygon_WKT(std::istream &in, MultiPolygon &polygons)
Kernel