static inline void apply(Polygon const& poly, Point& centroid,
Strategy const& strategy)
{
if (range_ok(exterior_ring(poly), centroid))
{
typename Strategy::state_type state;
centroid_polygon_state::apply(poly, strategy, state);
strategy.result(state, centroid);
}
}
static inline void apply(Range const& range, Point& centroid,
Strategy const& strategy)
{
if (range_ok(range, centroid))
{
typename Strategy::state_type state;
centroid_range_state<Closure>::apply(range, strategy, state);
strategy.result(state, centroid);
}
}
static inline void apply(Ring const& ring, Point& centroid,
Strategy const& strategy)
{
if (range_ok(ring, centroid))
{
typename Strategy::state_type state;
centroid_ring_state
<
Ring,
Strategy
>::apply(ring, strategy, state);
Strategy::result(state, centroid);
}
}
static inline bool apply(Polygon const& poly, Point& centroid,
Strategy const& strategy)
{
if (range_ok(exterior_ring(poly), centroid))
{
// prepare translation transformer
translating_transformer<Polygon>
transformer(*boost::begin(exterior_ring(poly)));
typename Strategy::state_type state;
centroid_polygon_state::apply(poly, transformer, strategy, state);
if ( strategy.result(state, centroid) )
{
// translate the result back
transformer.apply_reverse(centroid);
return true;
}
}
return false;
}
static inline bool apply(Range const& range, Point& centroid,
Strategy const& strategy)
{
if (range_ok(range, centroid))
{
// prepare translation transformer
translating_transformer<Range> transformer(*boost::begin(range));
typename Strategy::state_type state;
centroid_range_state<Closure>::apply(range, transformer,
strategy, state);
if ( strategy.result(state, centroid) )
{
// translate the result back
transformer.apply_reverse(centroid);
return true;
}
}
return false;
}
