pub fn node_comparison_predicate(
        node1: &VB::BeachLineNodeKey<I, F>,
        node2: &VB::BeachLineNodeKey<I, F>,
    ) -> bool {
        // Get x coordinate of the rightmost site from both nodes.
        let site1: &VSE::SiteEvent<I, F> =
            NodeComparisonPredicate::<I, F>::get_comparison_site_(node1);
        let site2: &VSE::SiteEvent<I, F> =
            NodeComparisonPredicate::<I, F>::get_comparison_site_(node2);
        let point1: &Point<I> = NodeComparisonPredicate::<I, F>::get_comparison_point_(site1);
        let point2: &Point<I> = NodeComparisonPredicate::<I, F>::get_comparison_point_(site2);
        let rv = {
            match point1.x.cmp(&point2.x) {
                cmp::Ordering::Less => {
                    //tln!("point1.x < point2.x {}<{}", point1.x, point2.x);
                    // The second node contains a new site.
                    DistancePredicate::<I, F>::distance_predicate(
                        node1.left_site(),
                        node1.right_site(),
                        point2,
                    )
                }
                cmp::Ordering::Greater => {
                    //tln!( "point1.x > point2.x");
                    // The first node contains a new site.
                    !DistancePredicate::<I, F>::distance_predicate(
                        node2.left_site(),
                        node2.right_site(),
                        point1,
                    )
                }
                cmp::Ordering::Equal => {
                    //tln!( "point1.x == point2.x");
                    // These checks were evaluated experimentally.
                    match site1.sorted_index().cmp(&site2.sorted_index()) {
                        cmp::Ordering::Equal => {
                            //tln!( "sorted_index Equal");
                            // Both nodes are new (inserted during same site event processing).
                            let y1 = Self::get_comparison_y_(node1, true);
                            let y2 = Self::get_comparison_y_(node2, true);
                            y1 < y2
                        }
                        cmp::Ordering::Less => {
                            let y1 = Self::get_comparison_y_(node1, false);
                            let y2 = Self::get_comparison_y_(node2, true);
                            //if (y1.first != y2.first) return y1.first < y2.first;
                            //return (!site1.is_segment()) ? (y1.second < 0) : false;
                            if y1.0 != y2.0 {
                                //tln!( "sorted_index Less 1 y1:{:?} y2:{:?}", y1, y2);
                                y1.0 < y2.0
                            } else if !site1.is_segment() {
                                //tln!( "sorted_index Less 2");
                                y1.1 < 0
                            } else {
                                //tln!( "sorted_index Less 3");
                                false
                            }
                        }
                        cmp::Ordering::Greater => {
                            //tln!( "sorted_index Greater");
                            let y1 = Self::get_comparison_y_(node1, true);
                            let y2 = Self::get_comparison_y_(node2, false);
                            //if (y1.first != y2.first) return y1.first < y2.first;
                            //return (!site2.is_segment()) ? (y2.second > 0) : true;
                            if y1.0 != y2.0 {
                                y1.0 < y2.0
                            } else if !site2.is_segment() {
                                y2.1 > 0
                            } else {
                                true
                            }
                        }
                    }
                }
            }
        };
        //tln!("node_comparison_predicate(L:{:?},R:{:?}, {}:{:?}, {}:{:?})=={}", node1.left_site(), node1.right_site(), site1.sorted_index(), point1, site2.sorted_index(), point2,rv);
        rv
    }
/// Compares nodes in the balanced binary search tree. Nodes are
/// compared based on the y coordinates of the arcs intersection points.
/// Nodes with less y coordinate of the intersection point go first.
/// Comparison is only called during the new site events processing.
/// That's why one of the nodes will always lie on the sweepline and may
/// be represented as a straight horizontal line.
Compares nodes in the balanced binary search tree. Nodes are
compared based on the y coordinates of the arcs intersection points.
Nodes with less y coordinate of the intersection point go first.
Comparison is only called during the new site events processing.
That's why one of the nodes will always lie on the sweepline and may
be represented as a straight horizontal line.
Compares nodes in the balanced binary search tree . Nodes are compared based on the y coordinates of the arcs intersection points . Nodes with less y coordinate of the intersection point go first . Comparison is only called during the new site events processing . That ' s why one of the nodes will always lie on the sweepline and may be represented as a straight horizontal line .
pub fn node_comparison_predicate(
        node1: &VB::BeachLineNodeKey<I, F>,
        node2: &VB::BeachLineNodeKey<I, F>,
    ) -> bool {
        // Get x coordinate of the rightmost site from both nodes.
        let site1: &VSE::SiteEvent<I, F> =
            NodeComparisonPredicate::<I, F>::get_comparison_site_(node1);
        let site2: &VSE::SiteEvent<I, F> =
            NodeComparisonPredicate::<I, F>::get_comparison_site_(node2);
        let point1: &Point<I> = NodeComparisonPredicate::<I, F>::get_comparison_point_(site1);
        let point2: &Point<I> = NodeComparisonPredicate::<I, F>::get_comparison_point_(site2);
        let rv = {
            match point1.x.cmp(&point2.x) {
                cmp::Ordering::Less => {
                    //tln!("point1.x < point2.x {}<{}", point1.x, point2.x);
                    // The second node contains a new site.
                    DistancePredicate::<I, F>::distance_predicate(
                        node1.left_site(),
                        node1.right_site(),
                        point2,
                    )
                }
                cmp::Ordering::Greater => {
                    //tln!( "point1.x > point2.x");
                    // The first node contains a new site.
                    !DistancePredicate::<I, F>::distance_predicate(
                        node2.left_site(),
                        node2.right_site(),
                        point1,
                    )
                }
                cmp::Ordering::Equal => {
                    //tln!( "point1.x == point2.x");
                    // These checks were evaluated experimentally.
                    match site1.sorted_index().cmp(&site2.sorted_index()) {
                        cmp::Ordering::Equal => {
                            //tln!( "sorted_index Equal");
                            // Both nodes are new (inserted during same site event processing).
                            let y1 = Self::get_comparison_y_(node1, true);
                            let y2 = Self::get_comparison_y_(node2, true);
                            y1 < y2
                        }
                        cmp::Ordering::Less => {
                            let y1 = Self::get_comparison_y_(node1, false);
                            let y2 = Self::get_comparison_y_(node2, true);
                            //if (y1.first != y2.first) return y1.first < y2.first;
                            //return (!site1.is_segment()) ? (y1.second < 0) : false;
                            if y1.0 != y2.0 {
                                //tln!( "sorted_index Less 1 y1:{:?} y2:{:?}", y1, y2);
                                y1.0 < y2.0
                            } else if !site1.is_segment() {
                                //tln!( "sorted_index Less 2");
                                y1.1 < 0
                            } else {
                                //tln!( "sorted_index Less 3");
                                false
                            }
                        }
                        cmp::Ordering::Greater => {
                            //tln!( "sorted_index Greater");
                            let y1 = Self::get_comparison_y_(node1, true);
                            let y2 = Self::get_comparison_y_(node2, false);
                            //if (y1.first != y2.first) return y1.first < y2.first;
                            //return (!site2.is_segment()) ? (y2.second > 0) : true;
                            if y1.0 != y2.0 {
                                y1.0 < y2.0
                            } else if !site2.is_segment() {
                                y2.1 > 0
                            } else {
                                true
                            }
                        }
                    }
                }
            }
        };
        //tln!("node_comparison_predicate(L:{:?},R:{:?}, {}:{:?}, {}:{:?})=={}", node1.left_site(), node1.right_site(), site1.sorted_index(), point1, site2.sorted_index(), point2,rv);
        rv
    }
pub fn node_comparison_predicate ( node1 : & VB :: BeachLineNodeKey < I , F > , node2 : & VB :: BeachLineNodeKey < I , F > , ) -> bool { // Get x coordinate of the rightmost site from both nodes. let site1 : & VSE :: SiteEvent < I , F > = NodeComparisonPredicate :: < I , F > :: get_comparison_site_ ( node1 ) ; let site2 : & VSE :: SiteEvent < I , F > = NodeComparisonPredicate :: < I , F > :: get_comparison_site_ ( node2 ) ; let point1 : & Point < I > = NodeComparisonPredicate :: < I , F > :: get_comparison_point_ ( site1 ) ; let point2 : & Point < I > = NodeComparisonPredicate :: < I , F > :: get_comparison_point_ ( site2 ) ; let rv = { match point1 . x . cmp ( & point2 . x ) { cmp :: Ordering :: Less => { //tln!("point1.x < point2.x {}<{}", point1.x, point2.x); // The second node contains a new site. DistancePredicate :: < I , F > :: distance_predicate ( node1 . left_site ( ) , node1 . right_site ( ) , point2 , ) } cmp :: Ordering :: Greater => { //tln!( "point1.x > point2.x"); // The first node contains a new site. ! DistancePredicate :: < I , F > :: distance_predicate ( node2 . left_site ( ) , node2 . right_site ( ) , point1 , ) } cmp :: Ordering :: Equal => { //tln!( "point1.x == point2.x"); // These checks were evaluated experimentally. match site1 . sorted_index ( ) . cmp ( & site2 . sorted_index ( ) ) { cmp :: Ordering :: Equal => { //tln!( "sorted_index Equal"); // Both nodes are new (inserted during same site event processing). let y1 = Self :: get_comparison_y_ ( node1 , true ) ; let y2 = Self :: get_comparison_y_ ( node2 , true ) ; y1 < y2 } cmp :: Ordering :: Less => { let y1 = Self :: get_comparison_y_ ( node1 , false ) ; let y2 = Self :: get_comparison_y_ ( node2 , true ) ; //if (y1.first != y2.first) return y1.first < y2.first; //return (!site1.is_segment()) ? (y1.second < 0) : false; if y1 . 0 != y2 . 0 { //tln!( "sorted_index Less 1 y1:{:?} y2:{:?}", y1, y2); y1 . 0 < y2 . 0 } else if ! site1 . is_segment ( ) { //tln!( "sorted_index Less 2"); y1 . 1 < 0 } else { //tln!( "sorted_index Less 3"); false } } cmp :: Ordering :: Greater => { //tln!( "sorted_index Greater"); let y1 = Self :: get_comparison_y_ ( node1 , true ) ; let y2 = Self :: get_comparison_y_ ( node2 , false ) ; //if (y1.first != y2.first) return y1.first < y2.first; //return (!site2.is_segment()) ? (y2.second > 0) : true; if y1 . 0 != y2 . 0 { y1 . 0 < y2 . 0 } else if ! site2 . is_segment ( ) { y2 . 1 > 0 } else { true } } } } } } ; //tln!("node_comparison_predicate(L:{:?},R:{:?}, {}:{:?}, {}:{:?})=={}", node1.left_site(), node1.right_site(), site1.sorted_index(), point1, site2.sorted_index(), point2,rv); rv }
Compares nodes in the balanced binary search tree.
Compares nodes in the balanced binary search tree .
node1
&VB::BeachLineNodeKey<I, F>
node2
&VB::BeachLineNodeKey<I, F>