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asd-2024
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generic graph code and visualization

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main
Antonio De Lucreziis 7 months ago
parent e654535280
commit ce6dcb0551
12 changed files with 335 additions and 227 deletions
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4
Cargo.lock generated
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@ -224,7 +224,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "175571dd1d178ced59193a6fc02dde1b972eb0bc56c892cde9beeceac5bf0f6b"
[[package]]
name = "asd-2024"
name = "asd"
version = "0.1.0"
dependencies = [
"argh",
@ -788,6 +788,7 @@ dependencies = [
name = "configurable"
version = "0.1.0"
dependencies = [
"asd",
"crossbeam",
"eframe",
"egui",
@ -1039,6 +1040,7 @@ dependencies = [
name = "egui-graph-viz"
version = "0.1.0"
dependencies = [
"asd",
"eframe",
"egui",
"egui_graphs",

2
Cargo.toml
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@ -1,5 +1,5 @@
[package]
name = "asd-2024"
name = "asd"
version = "0.1.0"
edition = "2021"

1
examples/configurable/Cargo.toml
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@ -13,3 +13,4 @@ serde_json = "1.0"
fdg-sim = "0.9"
rand = "0.8"
crossbeam = "0.8"
asd = { path = "../../" }

290
examples/configurable/src/main.rs
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@ -1,5 +1,9 @@
use std::collections::HashMap;
use std::env;
use std::time::Instant;
use asd::gfa::{Entry, Orientation};
use asd::parser;
use crossbeam::channel::{unbounded, Receiver, Sender};
use eframe::{run_native, App, CreationContext};
use egui::{CollapsingHeader, Context, Pos2, ScrollArea, Slider, Ui};
@ -10,7 +14,7 @@ use fdg_sim::{ForceGraph, ForceGraphHelper, Simulation, SimulationParameters};
use petgraph::stable_graph::{DefaultIx, EdgeIndex, NodeIndex, StableGraph};
use petgraph::Directed;
use rand::Rng;
use settings::{SettingsGraph, SettingsInteraction, SettingsNavigation, SettingsStyle};
use settings::{SettingsInteraction, SettingsNavigation, SettingsStyle};
mod settings;
@ -18,10 +22,10 @@ const SIMULATION_DT: f32 = 0.035;
const EVENTS_LIMIT: usize = 100;
pub struct ConfigurableApp {
g: Graph<(), (), Directed, DefaultIx>,
g: Graph<(String, Orientation), (), Directed, DefaultIx>,
sim: Simulation<(), f32>,
settings_graph: SettingsGraph,
// settings_graph: SettingsGraph,
settings_interaction: SettingsInteraction,
settings_navigation: SettingsNavigation,
settings_style: SettingsStyle,
@ -43,8 +47,8 @@ pub struct ConfigurableApp {
impl ConfigurableApp {
fn new(_: &CreationContext<'_>) -> Self {
let settings_graph = SettingsGraph::default();
let (g, sim) = generate(&settings_graph);
// let settings_graph = SettingsGraph::default();
let (g, sim) = generate();
let (event_publisher, event_consumer) = unbounded();
Self {
g,
@ -53,8 +57,7 @@ impl ConfigurableApp {
event_consumer,
event_publisher,
settings_graph,
// settings_graph,
settings_interaction: SettingsInteraction::default(),
settings_navigation: SettingsNavigation::default(),
settings_style: SettingsStyle::default(),
@ -149,12 +152,12 @@ impl ConfigurableApp {
}
fn reset_graph(&mut self, ui: &mut Ui) {
let settings_graph = SettingsGraph::default();
let (g, sim) = generate(&settings_graph);
// let settings_graph = SettingsGraph::default();
let (g, sim) = generate();
self.g = g;
self.sim = sim;
self.settings_graph = settings_graph;
// self.settings_graph = settings_graph;
self.last_events = Vec::default();
GraphView::<(), (), Directed, DefaultIx>::reset_metadata(ui);
@ -198,92 +201,92 @@ impl ConfigurableApp {
});
}
fn random_node_idx(&self) -> Option<NodeIndex> {
let nodes_cnt = self.g.node_count();
if nodes_cnt == 0 {
return None;
}
// fn random_node_idx(&self) -> Option<NodeIndex> {
// let nodes_cnt = self.g.node_count();
// if nodes_cnt == 0 {
// return None;
// }
let random_n_idx = rand::thread_rng().gen_range(0..nodes_cnt);
self.g.g.node_indices().nth(random_n_idx)
}
// let random_n_idx = rand::thread_rng().gen_range(0..nodes_cnt);
// self.g.g.node_indices().nth(random_n_idx)
// }
fn random_edge_idx(&self) -> Option<EdgeIndex> {
let edges_cnt = self.g.edge_count();
if edges_cnt == 0 {
return None;
}
// fn random_edge_idx(&self) -> Option<EdgeIndex> {
// let edges_cnt = self.g.edge_count();
// if edges_cnt == 0 {
// return None;
// }
let random_e_idx = rand::thread_rng().gen_range(0..edges_cnt);
self.g.g.edge_indices().nth(random_e_idx)
}
// let random_e_idx = rand::thread_rng().gen_range(0..edges_cnt);
// self.g.g.edge_indices().nth(random_e_idx)
// }
fn remove_random_node(&mut self) {
let idx = self.random_node_idx().unwrap();
self.remove_node(idx);
}
// fn remove_random_node(&mut self) {
// let idx = self.random_node_idx().unwrap();
// self.remove_node(idx);
// }
fn add_random_node(&mut self) {
let random_n_idx = self.random_node_idx();
if random_n_idx.is_none() {
return;
}
// fn add_random_node(&mut self) {
// let random_n_idx = self.random_node_idx();
// if random_n_idx.is_none() {
// return;
// }
let random_n = self.g.node(random_n_idx.unwrap()).unwrap();
// let random_n = self.g.node(random_n_idx.unwrap()).unwrap();
// location of new node is in surrounging of random existing node
let mut rng = rand::thread_rng();
let location = Pos2::new(
random_n.location().x + 10. + rng.gen_range(0. ..50.),
random_n.location().y + 10. + rng.gen_range(0. ..50.),
);
// // location of new node is in surrounging of random existing node
// let mut rng = rand::thread_rng();
// let location = Pos2::new(
// random_n.location().x + 10. + rng.gen_range(0. ..50.),
// random_n.location().y + 10. + rng.gen_range(0. ..50.),
// );
let idx = self.g.add_node_with_location((), location);
// let idx = self.g.add_node_with_location((), location);
let mut sim_node = fdg_sim::Node::new(idx.index().to_string().as_str(), ());
sim_node.location = Vec3::new(location.x, location.y, 0.);
self.sim.get_graph_mut().add_node(sim_node);
}
// let mut sim_node = fdg_sim::Node::new(idx.index().to_string().as_str(), ());
// sim_node.location = Vec3::new(location.x, location.y, 0.);
// self.sim.get_graph_mut().add_node(sim_node);
// }
fn remove_node(&mut self, idx: NodeIndex) {
self.g.remove_node(idx);
// fn remove_node(&mut self, idx: NodeIndex) {
// self.g.remove_node(idx);
self.sim.get_graph_mut().remove_node(idx).unwrap();
// self.sim.get_graph_mut().remove_node(idx).unwrap();
// update edges count
self.settings_graph.count_edge = self.g.edge_count();
}
// // update edges count
// self.settings_graph.count_edge = self.g.edge_count();
// }
fn add_random_edge(&mut self) {
let random_start = self.random_node_idx().unwrap();
let random_end = self.random_node_idx().unwrap();
// fn add_random_edge(&mut self) {
// let random_start = self.random_node_idx().unwrap();
// let random_end = self.random_node_idx().unwrap();
self.add_edge(random_start, random_end);
}
// self.add_edge(random_start, random_end);
// }
fn add_edge(&mut self, start: NodeIndex, end: NodeIndex) {
self.g.add_edge(start, end, ());
// fn add_edge(&mut self, start: NodeIndex, end: NodeIndex) {
// self.g.add_edge(start, end, ());
self.sim.get_graph_mut().add_edge(start, end, 1.);
}
// self.sim.get_graph_mut().add_edge(start, end, 1.);
// }
fn remove_random_edge(&mut self) {
let random_e_idx = self.random_edge_idx();
if random_e_idx.is_none() {
return;
}
let endpoints = self.g.edge_endpoints(random_e_idx.unwrap()).unwrap();
// fn remove_random_edge(&mut self) {
// let random_e_idx = self.random_edge_idx();
// if random_e_idx.is_none() {
// return;
// }
// let endpoints = self.g.edge_endpoints(random_e_idx.unwrap()).unwrap();
self.remove_edge(endpoints.0, endpoints.1);
}
// self.remove_edge(endpoints.0, endpoints.1);
// }
fn remove_edge(&mut self, start: NodeIndex, end: NodeIndex) {
let (g_idx, _) = self.g.edges_connecting(start, end).next().unwrap();
self.g.remove_edge(g_idx);
// fn remove_edge(&mut self, start: NodeIndex, end: NodeIndex) {
// let (g_idx, _) = self.g.edges_connecting(start, end).next().unwrap();
// self.g.remove_edge(g_idx);
let sim_idx = self.sim.get_graph_mut().find_edge(start, end).unwrap();
self.sim.get_graph_mut().remove_edge(sim_idx).unwrap();
}
// let sim_idx = self.sim.get_graph_mut().find_edge(start, end).unwrap();
// self.sim.get_graph_mut().remove_edge(sim_idx).unwrap();
// }
fn draw_section_app(&mut self, ui: &mut Ui) {
CollapsingHeader::new("App Config")
@ -444,35 +447,35 @@ impl ConfigurableApp {
}
fn draw_counts_sliders(&mut self, ui: &mut Ui) {
ui.horizontal(|ui| {
let before = self.settings_graph.count_node as i32;
ui.add(Slider::new(&mut self.settings_graph.count_node, 1..=2500).text("nodes"));
let delta = self.settings_graph.count_node as i32 - before;
(0..delta.abs()).for_each(|_| {
if delta > 0 {
self.add_random_node();
return;
};
self.remove_random_node();
});
});
ui.horizontal(|ui| {
let before = self.settings_graph.count_edge as i32;
ui.add(Slider::new(&mut self.settings_graph.count_edge, 0..=5000).text("edges"));
let delta = self.settings_graph.count_edge as i32 - before;
(0..delta.abs()).for_each(|_| {
if delta > 0 {
self.add_random_edge();
return;
};
self.remove_random_edge();
});
});
// ui.horizontal(|ui| {
// let before = self.settings_graph.count_node as i32;
// ui.add(Slider::new(&mut self.settings_graph.count_node, 1..=2500).text("nodes"));
// let delta = self.settings_graph.count_node as i32 - before;
// (0..delta.abs()).for_each(|_| {
// if delta > 0 {
// self.add_random_node();
// return;
// };
// self.remove_random_node();
// });
// });
// ui.horizontal(|ui| {
// let before = self.settings_graph.count_edge as i32;
// ui.add(Slider::new(&mut self.settings_graph.count_edge, 0..=5000).text("edges"));
// let delta = self.settings_graph.count_edge as i32 - before;
// (0..delta.abs()).for_each(|_| {
// if delta > 0 {
// self.add_random_edge();
// return;
// };
// self.remove_random_edge();
// });
// });
}
}
@ -526,14 +529,53 @@ impl App for ConfigurableApp {
}
}
fn generate(settings: &SettingsGraph) -> (Graph<(), (), Directed, DefaultIx>, Simulation<(), f32>) {
let g = generate_random_graph(settings.count_node, settings.count_edge);
fn generate() -> (
Graph<(String, Orientation), (), Directed, DefaultIx>,
Simulation<(), f32>,
) {
let mut g: StableGraph<(String, Orientation), ()> = StableGraph::new();
let file = std::fs::File::open(env::args().nth(1).expect("missing gfa file argument")).unwrap();
let entries = parser::parse_source(file).unwrap();
let mut index_map = HashMap::new();
for entry in entries {
// println!("{:?}", entry);
if let Entry::Link {
from,
from_orient,
to,
to_orient,
} = entry
{
// add first node if not present
let a = index_map
.entry(from.clone())
.or_insert_with(|| g.add_node((from.clone(), from_orient)))
.to_owned();
// add second node if not present
let b = index_map
.entry(to.clone())
.or_insert_with(|| g.add_node((to.clone(), to_orient)))
.to_owned();
g.add_edge(a, b, ());
}
}
let g = Graph::from(&g);
let sim = construct_simulation(&g);
(g, sim)
}
fn construct_simulation(g: &Graph<(), (), Directed, DefaultIx>) -> Simulation<(), f32> {
fn construct_simulation(
g: &Graph<(String, Orientation), (), Directed, DefaultIx>,
) -> Simulation<(), f32> {
// create force graph
let mut force_graph = ForceGraph::with_capacity(g.g.node_count(), g.g.edge_count());
g.g.node_indices().for_each(|idx| {
@ -547,31 +589,31 @@ fn construct_simulation(g: &Graph<(), (), Directed, DefaultIx>) -> Simulation<()
// initialize simulation
let mut params = SimulationParameters::default();
let force = fdg_sim::force::fruchterman_reingold_weighted(100., 0.5);
let force = fdg_sim::force::fruchterman_reingold_weighted(100., 0.75);
params.set_force(force);
Simulation::from_graph(force_graph, params)
}
fn generate_random_graph(node_count: usize, edge_count: usize) -> Graph<(), ()> {
let mut rng = rand::thread_rng();
let mut graph = StableGraph::new();
// fn generate_random_graph(node_count: usize, edge_count: usize) -> Graph<(), ()> {
// let mut rng = rand::thread_rng();
// let mut graph = StableGraph::new();
// add nodes
for _ in 0..node_count {
graph.add_node(());
}
// // add nodes
// for _ in 0..node_count {
// graph.add_node(());
// }
// add random edges
for _ in 0..edge_count {
let source = rng.gen_range(0..node_count);
let target = rng.gen_range(0..node_count);
// // add random edges
// for _ in 0..edge_count {
// let source = rng.gen_range(0..node_count);
// let target = rng.gen_range(0..node_count);
graph.add_edge(NodeIndex::new(source), NodeIndex::new(target), ());
}
// graph.add_edge(NodeIndex::new(source), NodeIndex::new(target), ());
// }
to_graph(&graph)
}
// to_graph(&graph)
// }
fn main() {
let native_options = eframe::NativeOptions::default();

24
examples/configurable/src/settings.rs
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@ -1,16 +1,16 @@
pub struct SettingsGraph {
pub count_node: usize,
pub count_edge: usize,
}
// pub struct SettingsGraph {
// pub count_node: usize,
// pub count_edge: usize,
// }
impl Default for SettingsGraph {
fn default() -> Self {
Self {
count_node: 300,
count_edge: 500,
}
}
}
// impl Default for SettingsGraph {
// fn default() -> Self {
// Self {
// count_node: 300,
// count_edge: 500,
// }
// }
// }
#[derive(Default)]
pub struct SettingsInteraction {

1
examples/egui-graph-viz/Cargo.toml
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@ -9,3 +9,4 @@ egui = "0.27"
eframe = "0.27"
petgraph = "0.6"
egui_graphs = "0.20.0"
asd = { path = "../../" }

49
examples/egui-graph-viz/src/main.rs
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@ -1,3 +1,9 @@
use std::collections::HashMap;
use asd::{
gfa::{Entry, Orientation},
parser,
};
use eframe::{run_native, App, CreationContext};
use egui::Context;
use egui_graphs::{
@ -6,7 +12,7 @@ use egui_graphs::{
use petgraph::stable_graph::StableGraph;
pub struct InteractiveApp {
g: Graph<(), ()>,
g: Graph<(String, Orientation), ()>,
}
impl InteractiveApp {
@ -37,18 +43,39 @@ impl App for InteractiveApp {
}
}
fn generate_graph() -> Graph<(), ()> {
let mut g = StableGraph::new();
fn generate_graph() -> Graph<(String, Orientation), ()> {
let mut g: StableGraph<(String, Orientation), ()> = StableGraph::new();
let file = std::fs::File::open("../../dataset/example.gfa").unwrap();
let entries = parser::parse_source(file).unwrap();
let mut index_map = HashMap::new();
let a = g.add_node(());
let b = g.add_node(());
let c = g.add_node(());
for entry in entries {
println!("{:?}", entry);
g.add_edge(a, a, ());
g.add_edge(a, b, ());
g.add_edge(a, b, ());
g.add_edge(b, c, ());
g.add_edge(c, a, ());
if let Entry::Link {
from,
from_orient,
to,
to_orient,
} = entry
{
// add first node if not present
let a = index_map
.entry(from.clone())
.or_insert_with(|| g.add_node((from.clone(), from_orient)))
.to_owned();
// add second node if not present
let b = index_map
.entry(to.clone())
.or_insert_with(|| g.add_node((to.clone(), to_orient)))
.to_owned();
g.add_edge(a, b, ());
}
}
Graph::from(&g)
}

13
src/gfa.rs
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@ -1,9 +1,20 @@
#[derive(Debug)]
use std::fmt::Display;
#[derive(Debug, Hash, PartialEq, Eq, Clone)]
pub enum Orientation {
Forward,
Reverse,
}
impl Display for Orientation {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Orientation::Forward => write!(f, "+"),
Orientation::Reverse => write!(f, "-"),
}
}
}
#[derive(Debug)]
pub enum Entry {
Header {

122
src/graph.rs
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@ -1,100 +1,120 @@
use std::{
cell::RefCell,
collections::{HashMap, HashSet},
fmt::Debug,
hash::Hash,
rc::Rc,
};
#[derive(Debug)]
pub struct AdjacencyGraph {
nodes: HashMap<String, String>,
adjacencies: HashMap<String, HashSet<String>>,
pub struct AdjacencyGraph<V>
where
V: Hash + Eq + Clone,
{
nodes: HashSet<V>,
adjacencies: HashMap<V, HashSet<V>>,
}
#[allow(dead_code)]
impl AdjacencyGraph {
impl<V> AdjacencyGraph<V>
where
V: Hash + Eq + Clone + Debug,
{
pub fn new() -> Self {
AdjacencyGraph {
nodes: HashMap::new(),
nodes: HashSet::new(),
adjacencies: HashMap::new(),
}
}
pub fn add_node(&mut self, key: String, value: String) {
self.nodes.insert(key, value);
pub fn add_node(&mut self, node: V) {
// O(1)
self.nodes.insert(node);
}
pub fn add_edge(&mut self, from: String, to: String) {
pub fn add_edge(&mut self, from: V, to: V) {
// O(1)
self.add_node(from.clone());
self.add_node(to.clone());
// O(1)
self.adjacencies
.entry(from)
.or_insert(HashSet::new())
.or_insert_with(HashSet::new)
.insert(to);
}
pub fn get_adjacencies(&self, node: &str) -> Option<&HashSet<String>> {
pub fn get_adjacencies(&self, node: &V) -> Option<&HashSet<V>> {
self.adjacencies.get(node)
}
pub fn adjacencies(&self) -> &HashMap<String, HashSet<String>> {
pub fn adjacencies(&self) -> &HashMap<V, HashSet<V>> {
&self.adjacencies
}
pub fn opposite(&self) -> AdjacencyGraph {
pub fn edges(&self) -> impl Iterator<Item = (&V, &V)> {
self.adjacencies
.iter()
.flat_map(|(from, tos)| tos.iter().map(move |to| (from, to)))
}
pub fn opposite(&self) -> AdjacencyGraph<&V> {
let mut opposite = AdjacencyGraph::new();
for (from, adjacencies) in self.adjacencies.iter() {
for to in adjacencies {
opposite.add_edge(to.clone(), from.clone());
}
// O(|E|)
for (from, to) in self.edges() {
opposite.add_edge(to, from);
}
opposite
}
pub fn has_edge(&self, from: &str, to: &str) -> bool {
pub fn has_edge(&self, from: &V, to: &V) -> bool {
// O(1)
if let Some(adjacencies) = self.get_adjacencies(from) {
adjacencies.contains(&to.to_string())
// O(1)
adjacencies.contains(&to.to_owned())
} else {
false
}
}
// pub fn dfs(&self, node: String) -> HashSet<String> {
// let mut visited = HashSet::new();
// let mut stack = vec![node];
// while let Some(node) = stack.pop() {
// if visited.contains(&node) {
// continue;
// }
pub fn dfs(&self, node: V) -> HashSet<V> {
let mut visited: HashSet<V> = HashSet::new();
let mut stack = vec![&node];
// visited.insert(node.clone());
// O(|V| + |E|)
while let Some(node) = stack.pop() {
visited.insert(node.clone());
// if let Some(adjacencies) = self.get_adjacencies(&node) {
// for adj in adjacencies {
// stack.push(adj.clone());
// }
// }
// }
if let Some(adjacencies) = self.get_adjacencies(&node) {
for adj in adjacencies {
if !visited.contains(adj) {
stack.push(adj);
}
}
}
}
// visited
// }
visited
}
pub fn compute_ccs(&self) -> Vec<Vec<String>> {
pub fn compute_ccs(&self) -> Vec<Vec<V>> {
let mut visited = HashSet::new();
let mut result = Vec::new();
let op = self.opposite();
for node in self.nodes.keys() {
for node in self.nodes.iter() {
if visited.contains(node) {
continue;
}
let mut cc = HashSet::new();
let mut stack = vec![node.to_string()];
let mut cc: HashSet<V> = HashSet::new();
let mut stack: Vec<&V> = vec![node];
while let Some(node) = stack.pop() {
if cc.contains(&node) {
if cc.contains(node) {
continue;
}
@ -102,17 +122,19 @@ impl AdjacencyGraph {
if let Some(adjacencies) = self.get_adjacencies(&node) {
for adj in adjacencies {
stack.push(adj.clone());
stack.push(adj);
}
}
if let Some(adjacencies) = op.get_adjacencies(&node) {
for adj in adjacencies {
stack.push(adj.clone());
stack.push(adj);
}
}
}
// println!("CC: {:?}", cc);
visited.extend(cc.iter().map(|x| x.to_owned()));
result.push(cc.iter().map(|x| x.to_owned()).collect());
}
@ -120,11 +142,11 @@ impl AdjacencyGraph {
result
}
pub fn compute_ccs_2(&self) -> Vec<Vec<String>> {
let mut cc = HashMap::<String, Rc<RefCell<HashSet<String>>>>::new();
pub fn compute_ccs_2(&self) -> Vec<Vec<V>> {
let mut cc: HashMap<V, Rc<RefCell<HashSet<V>>>> = HashMap::new();
for node in self.nodes.keys() {
if cc.contains_key(node) {
for node in self.nodes.iter() {
if cc.contains_key(&node) {
continue;
}
@ -132,7 +154,7 @@ impl AdjacencyGraph {
let new_cc = Rc::new(RefCell::new(HashSet::new()));
let mut stack = vec![node.to_string()];
let mut stack: Vec<&V> = vec![node];
while let Some(node) = stack.pop() {
println!("New CC: {:?}", new_cc.borrow());
@ -140,7 +162,7 @@ impl AdjacencyGraph {
if cc.contains_key(&node) {
// merge the two connected components and go to the next node
let old_cc = cc.get(&node).unwrap();
let old_cc: &Rc<RefCell<HashSet<V>>> = cc.get(&node).unwrap();
println!(
"Merging {:?} with {:?} due to link to {:?}",
@ -164,7 +186,7 @@ impl AdjacencyGraph {
if let Some(adjacencies) = self.get_adjacencies(&node) {
for adj in adjacencies {
stack.push(adj.clone());
stack.push(adj);
}
}
}
@ -178,7 +200,7 @@ impl AdjacencyGraph {
let mut result = Vec::new();
let mut seen = HashSet::new();
for node in self.nodes.keys() {
for node in self.nodes.iter() {
if seen.contains(node) {
continue;
}

3
src/lib.rs
Unescape Escape View File

@ -0,0 +1,3 @@
pub mod gfa;
pub mod graph;
pub mod parser;

49
src/main.rs
Unescape Escape View File

@ -1,3 +1,5 @@
use std::collections::HashMap;
use argh::FromArgs;
use gfa::{Entry, Orientation};
use graph::AdjacencyGraph;
@ -36,48 +38,45 @@ fn main() -> std::io::Result<()> {
let file = std::fs::File::open(show.input)?;
let entries = parser::parse_source(file)?;
let mut graph = AdjacencyGraph::new();
let mut sequence_map = HashMap::new();
let mut graph: AdjacencyGraph<(String, Orientation)> = AdjacencyGraph::new();
for entry in entries {
println!("{:?}", entry);
match entry {
Entry::Segment { id, sequence } => {
graph.add_node(id, sequence);
sequence_map.insert(id.clone(), sequence);
}
Entry::Link {
from,
from_orient,
to,
to_orient,
} => match (from_orient, to_orient) {
(Orientation::Forward, Orientation::Forward)
| (Orientation::Reverse, Orientation::Reverse) => {
graph.add_edge(from, to);
}
(Orientation::Forward, Orientation::Reverse)
| (Orientation::Reverse, Orientation::Forward) => {
graph.add_edge(to, from);
}
},
} => {
graph.add_edge((from.clone(), from_orient), (to.clone(), to_orient));
}
_ => {}
}
}
for (from, adjacencies) in graph.adjacencies().iter() {
println!(
"{} -> {}",
from,
adjacencies
.iter()
.map(|to| to.to_owned())
.collect::<Vec<String>>()
.join(", ")
);
}
// Print the graph
// for ((from, orient), adjacencies) in graph.adjacencies().iter() {
// println!(
// "{}{} -> {}",
// from,
// orient,
// adjacencies
// .iter()
// .map(|(to, orient)| format!("{}{}", to, orient))
// .collect::<Vec<String>>()
// .join(", ")
// );
// }
let cc = graph.compute_ccs();
let cc = graph.compute_ccs_2();
println!("CCs: {:?}", cc);
// println!("CCs: {:?}", cc);
println!("Number of connected components: {}", cc.len());
}
}

4
src/parser.rs
Unescape Escape View File

@ -84,7 +84,7 @@ fn parse_path_segments(s: &str) -> Vec<(String, Orientation)> {
let mut rest = s;
loop {
println!("Rest: {}", rest);
// println!("Rest: {}", rest);
let r = rest;
@ -132,7 +132,7 @@ pub fn parse_source<R: Read>(reader: R) -> io::Result<Vec<Entry>> {
continue;
}
println!("Parsing: {}", line);
// println!("Parsing: {}", line);
let first_char = line.chars().next().unwrap();
let entry = match first_char {

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