修复头像重叠问题

src/views/keyNodeRecognition3/components/anchorGraph.vue

@@ -171,11 +171,28 @@ onMounted(() => {
   // 5. 节点分布在各自combo圆内
   nodes.forEach(node => {
     const combo = combos.find(c => c.id === node.comboId);
-    // 随机分布在combo圆内
-    const angle = Math.random() * 2 * Math.PI;
-    const radius = Math.random() * (combo.r - nodeSize / 2);
-    node.x = combo.x + Math.cos(angle) * radius;
-    node.y = combo.y + Math.sin(angle) * radius;
+    let valid = false;
+    let tryCount = 0;
+    let x, y;
+    const placed = nodes.filter(n => n.comboId === node.comboId && n !== node);
+    while (!valid && tryCount < 100) {
+      const angle = Math.random() * 2 * Math.PI;
+      const radius = Math.random() * (combo.r - nodeSize / 2);
+      x = combo.x + Math.cos(angle) * radius;
+      y = combo.y + Math.sin(angle) * radius;
+      valid = true;
+      for (const other of placed) {
+        const dx = x - other.x;
+        const dy = y - other.y;
+        if (Math.sqrt(dx * dx + dy * dy) < nodeSize) {
+          valid = false;
+          break;
+        }
+      }
+      tryCount++;
+    }
+    node.x = x;
+    node.y = y;
   });
 
   // 6. 用 layout: null，G6 不再自动布局