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[geometry] changes in examples w.r.t. custom pointer types

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[SVN r79370]
This commit is contained in:
Barend Gehrels 2012-07-08 20:17:21 +00:00
parent 8f67363fa8
commit c506c476dd
2 changed files with 55 additions and 50 deletions
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28
example/c05_custom_point_pointer_example.cpp
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@ -35,42 +35,42 @@ struct my_point
namespace boost { namespace geometry { namespace traits { namespace boost { namespace geometry { namespace traits {
template<> struct tag<my_point*> template<> struct tag<my_point>
{ typedef point_tag type; }; { typedef point_tag type; };
template<> struct coordinate_type<my_point*> template<> struct coordinate_type<my_point>
{ typedef double type; }; { typedef double type; };
template<> struct coordinate_system<my_point*> template<> struct coordinate_system<my_point>
{ typedef cs::cartesian type; }; { typedef cs::cartesian type; };
template<> struct dimension<my_point*> : boost::mpl::int_<2> {}; template<> struct dimension<my_point> : boost::mpl::int_<2> {};
template<> template<>
struct access<my_point*, 0> struct access<my_point, 0>
{ {
static double get(my_point const* p) static double get(my_point const& p)
{ {
return p->x; return p.x;
} }
static void set(my_point* p, double const& value) static void set(my_point& p, double const& value)
{ {
p->x = value; p.x = value;
} }
}; };
template<> template<>
struct access<my_point*, 1> struct access<my_point, 1>
{ {
static double get(my_point const* p) static double get(my_point const& p)
{ {
return p->y; return p.y;
} }
static void set(my_point* p, double const& value) static void set(my_point& p, double const& value)
{ {
p->y = value; p.y = value;
} }
}; };

77
example/c07_custom_ring_pointer_example.cpp
View File

@ -14,7 +14,9 @@
#include <boost/foreach.hpp> #include <boost/foreach.hpp>
#include <boost/geometry/geometry.hpp> #include <boost/geometry.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/register/ring.hpp> #include <boost/geometry/geometries/register/ring.hpp>
BOOST_GEOMETRY_REGISTER_RING_TEMPLATED(std::vector) BOOST_GEOMETRY_REGISTER_RING_TEMPLATED(std::vector)
@ -32,42 +34,42 @@ struct my_point
namespace boost { namespace geometry { namespace traits { namespace boost { namespace geometry { namespace traits {
template<> struct tag<my_point*> template<> struct tag<my_point>
{ typedef point_tag type; }; { typedef point_tag type; };
template<> struct coordinate_type<my_point*> template<> struct coordinate_type<my_point>
{ typedef double type; }; { typedef double type; };
template<> struct coordinate_system<my_point*> template<> struct coordinate_system<my_point>
{ typedef cs::cartesian type; }; { typedef cs::cartesian type; };
template<> struct dimension<my_point*> : boost::mpl::int_<2> {}; template<> struct dimension<my_point> : boost::mpl::int_<2> {};
template<> template<>
struct access<my_point*, 0> struct access<my_point, 0>
{ {
static double get(my_point const* p) static double get(my_point const& p)
{ {
return p->x; return p.x;
} }
static void set(my_point* p, double const& value) static void set(my_point& p, double const& value)
{ {
p->x = value; p.x = value;
} }
}; };
template<> template<>
struct access<my_point*, 1> struct access<my_point, 1>
{ {
static double get(my_point const* p) static double get(my_point const& p)
{ {
return p->y; return p.y;
} }
static void set(my_point* p, double const& value) static void set(my_point& p, double const& value)
{ {
p->y = value; p.y = value;
} }
}; };
@ -101,30 +103,33 @@ int main()
//std::vector<ring_type> unioned; //std::vector<ring_type> unioned;
//boost::geometry::union<ring_type>(a, b, unioned); //boost::geometry::union<ring_type>(a, b, unioned);
/* This once worked, using pointers, but has to be fixed or deprecated // BEGIN TODO
typedef boost::geometry::model::ring<boost::geometry::model::d2::point_xy<double> > ring_2d; // This compiles (and once worked) using pointers, but has to be fixed or deprecated
std::vector<ring_2d> unioned; // The problem is now the cart_intersect/side where a temporary point is generated
std::vector<ring_2d> intersected; //typedef boost::geometry::model::ring<boost::geometry::model::d2::point_xy<double> > ring_2d;
//std::vector<ring_2d> unioned;
//std::vector<ring_2d> intersected;
boost::geometry::intersection(a, b, intersected); //boost::geometry::intersection(a, b, intersected);
boost::geometry::union_(a, b, unioned); //boost::geometry::union_(a, b, unioned);
double ai = 0, au = 0; //double ai = 0, au = 0;
BOOST_FOREACH(ring_2d const& ring, intersected) //BOOST_FOREACH(ring_2d const& ring, intersected)
{ //{
ai += boost::geometry::area(ring); // ai += boost::geometry::area(ring);
} //}
BOOST_FOREACH(ring_2d const& ring, unioned) //BOOST_FOREACH(ring_2d const& ring, unioned)
{ //{
au += boost::geometry::area(ring); // au += boost::geometry::area(ring);
} //}
//std::cout << "a: " << aa << std::endl;
//std::cout << "b: " << ab << std::endl;
//std::cout << "a & b: " << ai << std::endl;
//std::cout << "a | b: " << au << std::endl;
//std::cout << "a + b - (a & b): " << (aa + ab - ai) << std::endl;
// END TODO
std::cout << "a: " << aa << std::endl;
std::cout << "b: " << ab << std::endl;
std::cout << "a & b: " << ai << std::endl;
std::cout << "a | b: " << au << std::endl;
std::cout << "a + b - (a & b): " << (aa + ab - ai) << std::endl;
*/
// free // free
BOOST_FOREACH(my_point* p, a) BOOST_FOREACH(my_point* p, a)