static inline void apply(Turns& turns)
{
turns.erase( std::remove_if(turns.begin(), turns.end(),
IsContinueTurn()),
turns.end()
);
}
static inline void apply(Turns& turns)
{
turns.erase( std::unique(turns.begin(), turns.end(),
TurnEqualsTo()),
turns.end()
);
}
std::string stream_turn_index(Turns const& turns, Turn const& turn, Operation const& op)
{
std::ostringstream out;
if (turn.cluster_id >= 0)
{
out << "cl=" << turn.cluster_id << " ";
}
// Because turn index is unknown here, and still useful for debugging,
std::size_t index = 0;
for (typename Turns::const_iterator it = turns.begin();
it != turns.end(); ++it, ++index)
{
Turn const& t = *it;
if (&t == &turn)
{
out << index;
break;
}
}
if (&op == &turn.operations[0]) { out << "[0]"; }
if (&op == &turn.operations[1]) { out << "[1]"; }
return out.str();
}
static inline int inside_or_outside_turn(Turns const& turns)
{
using namespace overlay;
for (typename Turns::const_iterator it = turns.begin();
it != turns.end(); ++it)
{
operation_type op0 = it->operations[0].operation;
operation_type op1 = it->operations[1].operation;
if (op0 == operation_intersection && op1 == operation_intersection)
{
return 1; // inside
}
else if (op0 == operation_union && op1 == operation_union)
{
return -1; // outside
}
}
return 0;
}
inline void merge_turns(Turns& rhs)
{
std::move(rhs.begin(),rhs.end(),std::back_inserter(m_turns));
}