C++ (Cpp) polygon::empty Examples

Example #1

File: boost_adapters.hpp Project: CartoDB/mapnik

 static ring_mutable_type get(mapnik::geometry::polygon<CoordinateType> & p)
 {
     if (p.empty()) p.resize(1);
     return p[0];
 }

Example #2

File: boost_adapters.hpp Project: CartoDB/mapnik

 static ring_const_type get(mapnik::geometry::polygon<CoordinateType> const& p)
 {
     if (p.empty()) throw std::runtime_error("Exterior ring must be initialized!");
     return p[0];
 }

Example #3

File: geometry_is_empty.hpp Project: Airphrame/mapnik

 bool operator() (mapnik::geometry::polygon<double> const& geom) const
 {
     return geom.empty();
 }