Animation

src/main.ts

@@ -1,19 +1,21 @@
 import './style.css'
 import Graph from "https://esm.sh/graphology";
 import Sigma from "https://esm.sh/sigma";
-import forceAtlas2 from "https://esm.sh/graphology-layout-forceatlas2";
+import  forceAtlas2  from "graphology-layout-forceatlas2";
 
 // --- Génération de données de base ---
 const graph = new Graph();
 
 const N = 30;
 const colors = ["#ec635e", "#61afef", "#2c3029ff", "#e5c07b"];
+
 for (let i = 0; i < N; i++) {
   const sex = Math.random() < 0.5 ? "F" : "M";
   const education = Math.floor(Math.random() * 4);
   const color = colors[education];
+
   graph.addNode(`n${i}`, {
-    x: i, y: i,
+    x: Math.random(), y: Math.random(),
     label: `${sex} ${i}`,
     sex,
     education,
@@ -27,22 +29,20 @@ for (let i = 0; i < N * 1.5; i++) {
   const a = `n${Math.floor(Math.random() * N)}`;
   const b = `n${Math.floor(Math.random() * N)}`;
   if (a !== b && !graph.hasEdge(a, b)) {
-    graph.addEdge(a, b, { color: "#aaa", size: 1 });
+    graph.addEdge(a, b, { color: "#da1515ff", size: 1 });
   }
 }
 
+// --- Calcul du layout ForceAtlas2 ---
+/*
+const positions = forceAtlas2(graph, { iterations: 50 });
 
-// With settings:
-const positions = forceAtlas2(graph, {
-  iterations: 50,
-  settings: {
-    gravity: 10
+// --- Application des positions calculées ---
+for (const [node, pos] of Object.entries(positions)) {
+  graph.setNodeAttribute(node, "x", pos.x);
+  graph.setNodeAttribute(node, "y", pos.y);
 }
-});
-
-// --- Placement automatique avec ForceAtlas2 ---
-//forceAtlas2.assign(graph);
-
+*/
 // --- Rendu Sigma ---
 const container = document.getElementById("app");
 const renderer = new Sigma(graph, container, { renderLabels: true });
@@ -63,11 +63,63 @@ function removeLink(source, target) {
 }
 
 // --- Exemple d’évolution dynamique ---
-setTimeout(() => addLink("n0", "n5"), 3000);
-setTimeout(() => removeLink("n1", "n2"), 6000);
+//setTimeout(() => addLink("n0", "n5"), 3000);
+//setTimeout(() => removeLink("n1", "n2"), 6000);
 
-console.log("Graph loaded:", graph.order, "nodes,", graph.size, "edges");
+//console.log("Graph loaded:", graph.order, "nodes,", graph.size, "edges");
 
+
+// --- Animation du layout ---
+// On crée une "simulation" ForceAtlas2 en incrémentant les positions à chaque frame.
+let running = true;
+
+function stepLayout() {
+  if (!running) return;
+
+  // Effectue une itération de ForceAtlas2 (ne recrée pas tout)
+  forceAtlas2.assign(graph, { iterations: 1, settings: { gravity: 0.1, scalingRatio: 10 } });
+
+  // Sigma détecte les changements automatiquement → inutile de refresh manuellement
+  requestAnimationFrame(stepLayout);
+}
+
+// Lancement
+stepLayout();
+
+// Arrêt automatique après 8 secondes
+setTimeout(() => {
+  running = false;
+  console.log("Layout stabilisé");
+}, 8000);
+
+/*
+const layout = new ForceAtlas2Layout(graph, {
+  settings: {
+    gravity: 0.1,
+    slowDown: 10,
+    linLogMode: false,
+    outboundAttractionDistribution: false,
+    adjustSizes: true,
+  },
+});
+
+// --- Animation : on démarre le layout ---
+layout.start();
+
+// --- Optionnel : arrêt automatique après quelques secondes ---
+setTimeout(() => {
+  layout.stop();
+  console.log("Layout stabilisé");
+}, 5000);
+
+// --- Animation continue du rendu ---
+function animate() {
+  // On redessine continuellement le graphe tant que le layout tourne
+  renderer.refresh();
+  requestAnimationFrame(animate);
+}
+animate();
+*/
 //import typescriptLogo from './typescript.svg'
 //import viteLogo from '/vite.svg'
 //import { setupCounter } from './counter.ts'