Example #1
0
    static inline void apply(std::size_t size_at_start,
                Rings& rings, typename boost::range_value<Rings>::type& ring,
                Turns& turns,
                typename boost::range_value<Turns>::type const& turn,
                Operation& operation,
                detail::overlay::traverse_error_type traverse_error,
                Geometry const& ,
                Geometry const& ,
                RobustPolicy const& ,
                state_type& state,
                Visitor& visitor
                )
    {
#if defined(BOOST_GEOMETRY_COUNT_BACKTRACK_WARNINGS)
extern int g_backtrack_warning_count;
g_backtrack_warning_count++;
#endif
//std::cout << "!";
//std::cout << "WARNING " << traverse_error_string(traverse_error) << std::endl;

        state.m_good = false;

        // Make bad output clean
        rings.resize(size_at_start);
        ring.clear();

        // Reject this as a starting point
        operation.visited.set_rejected();

        // And clear all visit info
        clear_visit_info(turns);
    }
Example #2
0
    static inline void apply(std::size_t size_at_start, 
                Rings& rings, typename boost::range_value<Rings>::type& ring,
                Turns& turns, Operation& operation,
                std::string const& reason,
                Geometry const& ,
                Geometry const& ,
                state_type& state
                )
    {
#if defined(BOOST_GEOMETRY_COUNT_BACKTRACK_WARNINGS)
extern int g_backtrack_warning_count;
g_backtrack_warning_count++;
#endif
//std::cout << "!";
//std::cout << "WARNING " << reason << std::endl;

        // TODO this is a copy of dissolve, check this for buffer
        state.m_good = false;
        
        // Make bad output clean
        rings.resize(size_at_start);
        ring.clear();

        // Reject this as a starting point
        operation.visited.set_rejected();

        // And clear all visit info
        clear_visit_info(turns);
    }
Example #3
0
    void traverse_with_operation(turn_type const& start_turn,
            std::size_t turn_index, int op_index,
            Rings& rings, std::size_t& finalized_ring_size,
            typename Backtrack::state_type& state)
    {
        typedef typename boost::range_value<Rings>::type ring_type;

        turn_operation_type const& start_op = start_turn.operations[op_index];

        if (! start_op.visited.none()
            || ! start_op.enriched.startable
            || start_op.visited.rejected()
            || ! (start_op.operation == target_operation
                || start_op.operation == detail::overlay::operation_continue))
        {
            return;
        }

        ring_type ring;
        traverse_error_type traverse_error = traverse(ring, turn_index, op_index);

        if (traverse_error == traverse_error_none)
        {
            std::size_t const min_num_points
                    = core_detail::closure::minimum_ring_size
                            <
                                geometry::closure<ring_type>::value
                            >::value;

            if (geometry::num_points(ring) >= min_num_points)
            {
                clean_closing_dups_and_spikes(ring, m_robust_policy);
                rings.push_back(ring);

                m_trav.finalize_visit_info();
                finalized_ring_size++;
            }
        }
        else
        {
            Backtrack::apply(
                finalized_ring_size,
                rings, ring, m_turns, start_turn,
                m_turns[turn_index].operations[op_index],
                traverse_error,
                m_geometry1, m_geometry2, m_robust_policy,
                state, m_visitor);
        }
    }
Example #4
0
    static inline void apply(std::size_t size_at_start, 
                Rings& rings, typename boost::range_value<Rings>::type& ring,
                Turns& turns, Operation& operation,
                std::string const& ,
                Geometry const& ,
                Geometry const& ,
                state_type& state
                )
    {
        state.m_good = false;
        
        // Make bad output clean
        rings.resize(size_at_start);
        ring.clear();

        // Reject this as a starting point
        operation.visited.set_rejected();

        // And clear all visit info
        clear_visit_info(turns);
    }