pub fn build<M: Metric>(
        &self,
        point_cloud: PointCloud<M>,
    ) -> MalwareBrotResult<CoverTreeWriter<M>> {
        let parameters = CoverTreeParameters {
            total_nodes: atomic::AtomicUsize::new(1),
            scale_base: self.scale_base,
            cutoff: self.cutoff,
            resolution: self.resolution,
            use_singletons: self.use_singletons,
            cluster_min: self.cluster_min,
            point_cloud: point_cloud,
            verbosity: self.verbosity,
        };

        let root = BuilderNode::new(&parameters)?;
        let root_address = root.address();
        let scale_range = root_address.0 - parameters.resolution;
        let mut layers = Vec::with_capacity(scale_range as usize);
        layers.push(CoverLayerWriter::new(parameters.resolution));
        for i in 0..(scale_range + 1) {
            layers.push(CoverLayerWriter::new(parameters.resolution + i as i32));
        }

        let (node_sender, node_receiver): (
            Sender<MalwareBrotResult<(i32, PointIndex, CoverNode)>>,
            Receiver<MalwareBrotResult<(i32, PointIndex, CoverNode)>>,
        ) = unbounded();

        let node_sender = Arc::new(node_sender);
        let parameters = Arc::new(parameters);
        root.split_parallel(&parameters, &node_sender);
        let mut pb = ProgressBar::new(1u64);
        if parameters.verbosity > 1 {
            pb.format("╢▌▌░╟");
        }

        let mut cover_tree = CoverTreeWriter {
            parameters: Arc::clone(&parameters),
            layers,
            root_address,
        };

        let mut inserted_nodes: usize = 0;
        let now = Instant::now();
        loop {
            match node_receiver.recv() {
                Ok(res) => {
                    let (scale_index, point_index, new_node) = res.unwrap();
                    unsafe {cover_tree.insert_raw(scale_index, point_index, new_node);}
                    inserted_nodes += 1;
                    if parameters.verbosity > 1 {
                        pb.total = parameters.total_nodes.load(atomic::Ordering::SeqCst) as u64;
                        pb.inc();
                    }
                }
                Err(_) => {}
            }
            // Stop if there are enough done, and there are no more outstanding parameter references
            if inserted_nodes == parameters.total_nodes.load(atomic::Ordering::SeqCst) {
                break;
            }
        }
        if parameters.verbosity > 1 {
            println!("\nWriting layers...");
        }
        cover_tree.refresh();
        if parameters.verbosity > 1 {
            println!(
                "Finished building, took {:?} with {} per second",
                now.elapsed(),
                (inserted_nodes as f32) / now.elapsed().as_secs_f32()
            );
        }
        Ok(cover_tree)
    }
/// Pass a point cloud object when ready. 
/// To do, make this point cloud an Arc
Pass a point cloud object when ready.
To do, make this point cloud an Arc
Pass a point cloud object when ready . To do make this point cloud an Arc
pub fn build<M: Metric>(
        &self,
        point_cloud: PointCloud<M>,
    ) -> MalwareBrotResult<CoverTreeWriter<M>> {
        let parameters = CoverTreeParameters {
            total_nodes: atomic::AtomicUsize::new(1),
            scale_base: self.scale_base,
            cutoff: self.cutoff,
            resolution: self.resolution,
            use_singletons: self.use_singletons,
            cluster_min: self.cluster_min,
            point_cloud: point_cloud,
            verbosity: self.verbosity,
        };
        let root = BuilderNode::new(&parameters)?;
        let root_address = root.address();
        let scale_range = root_address.0 - parameters.resolution;
        let mut layers = Vec::with_capacity(scale_range as usize);
        layers.push(CoverLayerWriter::new(parameters.resolution));
        for i in 0..(scale_range + 1) {
            layers.push(CoverLayerWriter::new(parameters.resolution + i as i32));
        }
        let (node_sender, node_receiver): (
            Sender<MalwareBrotResult<(i32, PointIndex, CoverNode)>>,
            Receiver<MalwareBrotResult<(i32, PointIndex, CoverNode)>>,
        ) = unbounded();
        let node_sender = Arc::new(node_sender);
        let parameters = Arc::new(parameters);
        root.split_parallel(&parameters, &node_sender);
        let mut pb = ProgressBar::new(1u64);
        if parameters.verbosity > 1 {
            pb.format("╢▌▌░╟");
        }
        let mut cover_tree = CoverTreeWriter {
            parameters: Arc::clone(&parameters),
            layers,
            root_address,
        };
        let mut inserted_nodes: usize = 0;
        let now = Instant::now();
        loop {
            match node_receiver.recv() {
                Ok(res) => {
                    let (scale_index, point_index, new_node) = res.unwrap();
                    unsafe {cover_tree.insert_raw(scale_index, point_index, new_node);}
                    inserted_nodes += 1;
                    if parameters.verbosity > 1 {
                        pb.total = parameters.total_nodes.load(atomic::Ordering::SeqCst) as u64;
                        pb.inc();
                    }
                }
                Err(_) => {}
            }
            // Stop if there are enough done, and there are no more outstanding parameter references
            if inserted_nodes == parameters.total_nodes.load(atomic::Ordering::SeqCst) {
                break;
            }
        }
        if parameters.verbosity > 1 {
            println!("\nWriting layers...");
        }
        cover_tree.refresh();
        if parameters.verbosity > 1 {
            println!(
                "Finished building, took {:?} with {} per second",
                now.elapsed(),
                (inserted_nodes as f32) / now.elapsed().as_secs_f32()
            );
        }
        Ok(cover_tree)
    }
pub fn build < M : Metric > ( & self , point_cloud : PointCloud < M > , ) -> MalwareBrotResult < CoverTreeWriter < M > > { let parameters = CoverTreeParameters { total_nodes : atomic :: AtomicUsize :: new ( 1 ) , scale_base : self . scale_base , cutoff : self . cutoff , resolution : self . resolution , use_singletons : self . use_singletons , cluster_min : self . cluster_min , point_cloud : point_cloud , verbosity : self . verbosity , } ; let root = BuilderNode :: new ( & parameters ) ? ; let root_address = root . address ( ) ; let scale_range = root_address . 0 - parameters . resolution ; let mut layers = Vec :: with_capacity ( scale_range as usize ) ; layers . push ( CoverLayerWriter :: new ( parameters . resolution ) ) ; for i in 0 .. ( scale_range + 1 ) { layers . push ( CoverLayerWriter :: new ( parameters . resolution + i as i32 ) ) ; } let ( node_sender , node_receiver ) : ( Sender < MalwareBrotResult < ( i32 , PointIndex , CoverNode ) > > , Receiver < MalwareBrotResult < ( i32 , PointIndex , CoverNode ) > > , ) = unbounded ( ) ; let node_sender = Arc :: new ( node_sender ) ; let parameters = Arc :: new ( parameters ) ; root . split_parallel ( & parameters , & node_sender ) ; let mut pb = ProgressBar :: new ( 1u64 ) ; if parameters . verbosity > 1 { pb . format ( " } let mut cover_tree = CoverTreeWriter { parameters : Arc :: clone ( & parameters ) , layers , root_address , } ; let mut inserted_nodes : usize = 0 ; let now = Instant :: now ( ) ; loop { match node_receiver . recv ( ) { Ok ( res ) => { let ( scale_index , point_index , new_node ) = res . unwrap ( ) ; unsafe { cover_tree . insert_raw ( scale_index , point_index , new_node ) ; } inserted_nodes += 1 ; if parameters . verbosity > 1 { pb . total = parameters . total_nodes . load ( atomic :: Ordering :: SeqCst ) as u64 ; pb . inc ( ) ; } } Err ( _ ) => { } } // Stop if there are enough done, and there are no more outstanding parameter references if inserted_nodes == parameters . total_nodes . load ( atomic :: Ordering :: SeqCst ) { break ; } } if parameters . verbosity > 1 { println ! ( " \n " ) ; } cover_tree . refresh ( ) ; if parameters . verbosity > 1 { println ! ( " " now elapsed ( ) ( inserted_nodes as f32 ) now elapsed ( ) as_secs_f32 ( ) ) ; } Ok ( cover_tree ) }
Pass a point cloud object when ready.
Pass a point cloud object when ready .
&self
point_cloud
PointCloud<M>
&self
point_cloud
PointCloud<M>