#16 Adaptation modélisation

This commit is contained in:
HU helene 2024-03-25 22:50:47 +01:00
parent 14b080ff4d
commit 62b1e9be36
5 changed files with 51 additions and 28 deletions

View file

@ -15,4 +15,21 @@ public class Connection{
this.distance = distance;
this.time = time;
}
public String getLineName() {
return lineName;
}
public double getDistance() {
return distance;
}
public int getTime() {
return time;
}
public Stop getStop() {
return stop;
}
}

View file

@ -2,21 +2,21 @@ package fr.u_paris.gla.project.itinerary;
import java.util.*;
public class Finder <T extends GraphNode<T>> {
private Graph<T> graph;
public Finder(Graph<T> graph) {
public class Finder {
private Graph graph;
public Finder(Graph graph) {
this.graph = graph;
}
public List<T> findPath(T startNode, T goalNode) {
PriorityQueue<T> openSet = new PriorityQueue<>(Comparator.comparingDouble(GraphNode::getF));
HashSet<T> closedSet = new HashSet<>();
HashMap<T, T> cameFrom = new HashMap<>();
HashMap<T, Double> gScore = new HashMap<>();
HashMap<T, Double> fScore = new HashMap<>();
public List<Stop> findPath(Stop startNode, Stop goalNode) {
PriorityQueue<Stop> openSet = new PriorityQueue<>(Comparator.comparingDouble(GraphNode::getF));
HashSet<Stop> closedSet = new HashSet<>();
HashMap<Stop, Stop> cameFrom = new HashMap<>();
HashMap<Stop, Double> gScore = new HashMap<>();
HashMap<Stop, Double> fScore = new HashMap<>();
// Initialize scores for all nodes to infinity
for (T node : graph.getNodes()) {
for (Stop node : graph.getNodes()) {
gScore.put(node, Double.POSITIVE_INFINITY);
fScore.put(node, Double.POSITIVE_INFINITY);
}
@ -28,7 +28,7 @@ public class Finder <T extends GraphNode<T>> {
openSet.add(startNode);
while (!openSet.isEmpty()) {
T current = openSet.poll();
Stop current = openSet.poll();
if (current.equals(goalNode)) {
return reconstructPath(cameFrom, current);
@ -36,12 +36,13 @@ public class Finder <T extends GraphNode<T>> {
closedSet.add(current);
for (T neighbor : current.getNeighbors()) {
for (Connection connection : graph.getConnections(current) ) {
Stop neighbor = connection.getStop();
if (closedSet.contains(neighbor)) {
continue; // Ignore the neighbor which is already evaluated.
}
double tentativeGScore = gScore.get(current) + current.getCost(neighbor);
double tentativeGScore = gScore.get(current) + connection.getDistance();
if (!openSet.contains(neighbor)) {
openSet.add(neighbor);
@ -60,8 +61,8 @@ public class Finder <T extends GraphNode<T>> {
return null;
}
private List<T> reconstructPath(HashMap<T, T> cameFrom, T current) {
List<T> totalPath = new ArrayList<>();
private List<Stop> reconstructPath(HashMap<Stop, Stop> cameFrom, Stop current) {
List<Stop> totalPath = new ArrayList<>();
totalPath.add(current);
while (cameFrom.containsKey(current)) {
@ -73,7 +74,7 @@ public class Finder <T extends GraphNode<T>> {
}
//TODO:
public List<T> findPath(double longitude, double latitude){
public List<Stop> findPath(double longitude, double latitude){
return null;
}

View file

@ -3,17 +3,23 @@ package fr.u_paris.gla.project.itinerary;
import java.util.Map;
import java.util.Set;
public class Graph <T extends GraphNode> {
private final Set<T> nodes;
public class Graph{
private final Set<Stop> nodes;
private final Map<T, Set<Connection>> connections;
private final Map<Stop, Set<Connection>> connections;
public Graph(Set<T> nodes, Map<T, Set<Connection>> connections) {
public Graph(Set<Stop> nodes, Map<Stop, Set<Connection>> connections) {
this.nodes = nodes;
this.connections = connections;
}
public Set<T> getNodes() {
public Set<Connection> getConnections(Stop node) {
return connections.get(node);
}
public Set<Stop> getNodes() {
return nodes;
}
}

View file

@ -3,11 +3,11 @@ package fr.u_paris.gla.project.itinerary;
import java.util.List;
import java.util.Set;
public interface GraphNode<T>{
public interface GraphNode{
int getId();
double getHeuristicCost(T goalNode);
double getHeuristicCost(Stop goalNode);
Set<T> getNeighbors();
double getCost(T neighbor);
Set<Stop> getNeighbors();
double getCost(Stop neighbor);
double getF();
}

View file

@ -28,7 +28,7 @@ public class Stop implements GraphNode {
}
@Override
public double getHeuristicCost(Object goalNode) {
public double getHeuristicCost(Stop goalNode) {
return 0;
}
@ -37,9 +37,8 @@ public class Stop implements GraphNode {
return lines;
}
@Override
public double getCost(Object neighbor) {
public double getCost(Stop neighbor) {
return 0;
}