diff --git a/src/graphics/iscs-fan/IscsFanDrawAssistant.ts b/src/graphics/iscs-fan/IscsFanDrawAssistant.ts
index 5853991..fab5997 100644
--- a/src/graphics/iscs-fan/IscsFanDrawAssistant.ts
+++ b/src/graphics/iscs-fan/IscsFanDrawAssistant.ts
@@ -1,7 +1,10 @@
 import { FederatedMouseEvent, Point } from 'pixi.js';
 import {
+  AbsorbableLine,
+  AbsorbablePosition,
   GraphicDrawAssistant,
   GraphicInteractionPlugin,
+  GraphicTransformEvent,
   JlDrawApp,
   JlGraphic,
 } from 'src/jlgraphic';
@@ -68,6 +71,16 @@ export class IscsFanInteraction extends GraphicInteractionPlugin<IscsFan> {
     g.cursor = 'pointer';
     // g.scalable = true;
     g.rotatable = true;
+    g.on('drag-start', () => {
+      console.log('风机拖拽');
+    });
+    g.on('transformstart', (e: GraphicTransformEvent) => {
+      if (e.isShift()) {
+        g.getGraphicApp().setOptions({
+          absorbablePositions: buildAbsorbablePositions(g),
+        });
+      }
+    });
   }
   unbind(g: IscsFan): void {
     g.eventMode = 'none';
@@ -75,3 +88,23 @@ export class IscsFanInteraction extends GraphicInteractionPlugin<IscsFan> {
     g.rotatable = false;
   }
 }
+
+function buildAbsorbablePositions(
+  g: IscsFan
+): AbsorbablePosition[] | undefined {
+  const app = g.getGraphicApp();
+  const canvas = app.canvas;
+  const store = app.queryStore;
+  const aps: AbsorbablePosition[] = [];
+  store.queryByType(IscsFan.Type).forEach((fan) => {
+    if (fan.id === g.id) return;
+    const p = fan.position;
+    aps.push(
+      new AbsorbableLine(new Point(0, p.y), new Point(canvas.width, p.y))
+    );
+    aps.push(
+      new AbsorbableLine(new Point(p.x, 0), new Point(p.x, canvas.height))
+    );
+  });
+  return aps;
+}
diff --git a/src/jlgraphic/app/JlGraphicApp.ts b/src/jlgraphic/app/JlGraphicApp.ts
index 529f67d..7b23002 100644
--- a/src/jlgraphic/app/JlGraphicApp.ts
+++ b/src/jlgraphic/app/JlGraphicApp.ts
@@ -288,6 +288,7 @@ export interface GraphicAppEvents extends GlobalMixins.GraphicAppEvents {
   drag_op_end: [event: AppDragEvent];
   'pre-menu-handle': [menu: MenuItemOptions];
   'post-menu-handle': [menu: MenuItemOptions];
+  'websocket-state-change': [app: GraphicApp, connected: boolean];
   destroy: [app: GraphicApp];
 }
 
@@ -888,10 +889,10 @@ export class GraphicApp extends EventEmitter<GraphicAppEvents> {
     this.emit('destroy', this);
     if (this.wsMsgBroker) {
       this.wsMsgBroker.close();
-      if (!StompCli.hasAppMsgBroker()) {
-        // 如果没有其他消息代理，关闭websocket Stomp客户端
-        StompCli.close();
-      }
+      // if (!StompCli.hasAppMsgBroker()) {
+      //   // 如果没有其他消息代理，关闭websocket Stomp客户端
+      //   StompCli.close();
+      // }
     }
     this.interactionPluginMap.forEach((plugin) => {
       plugin.pause();
diff --git a/src/jlgraphic/graphic/AbsorbablePosition.ts b/src/jlgraphic/graphic/AbsorbablePosition.ts
index ec379a1..0d5405f 100644
--- a/src/jlgraphic/graphic/AbsorbablePosition.ts
+++ b/src/jlgraphic/graphic/AbsorbablePosition.ts
@@ -11,6 +11,8 @@ import {
   calculateFootPointFromPointToLine,
   calculateIntersectionPointOfCircleAndPoint,
   distance,
+  distance2,
+  isLineContainOther,
   linePoint,
 } from '../utils';
 import { VectorGraphic, VectorGraphicUtil } from './VectorGraphic';
@@ -19,12 +21,25 @@ import { VectorGraphic, VectorGraphicUtil } from './VectorGraphic';
  * 抽象可吸附位置
  */
 export interface AbsorbablePosition extends Container {
+  /**
+   * 是否与另一个可吸附位置重叠(相似，但可能范围不同)
+   * @param other
+   */
+  isOverlapping(other: AbsorbablePosition): boolean;
+
+  /**
+   * 与另一个相似的吸附位置比较范围大小
+   * @param other
+   * @returns >0此吸附范围大，<0另一个吸附范围大，=0两个吸附范围一样大
+   */
+  compareTo(other: AbsorbablePosition): number;
+
   /**
    * 尝试吸附图形对象
    * @param objs 图形对象列表
    * @returns  如果吸附成功，返回true，否则false
    */
-  tryAbsorb(...objs: DisplayObject[]): boolean;
+  tryAbsorb(...objs: DisplayObject[]): void;
 }
 
 /**
@@ -65,7 +80,22 @@ export default class AbsorbablePoint
     this.interactive;
     VectorGraphicUtil.handle(this);
   }
-  tryAbsorb(...objs: DisplayObject[]): boolean {
+  compareTo(other: AbsorbablePosition): number {
+    if (other instanceof AbsorbablePoint) {
+      return this.absorbRange - other.absorbRange;
+    }
+    throw new Error('非可吸附点');
+  }
+  isOverlapping(other: AbsorbablePosition): boolean {
+    if (other instanceof AbsorbablePoint) {
+      return (
+        this._point.equals(other._point) &&
+        this.absorbRange === other.absorbRange
+      );
+    }
+    return false;
+  }
+  tryAbsorb(...objs: DisplayObject[]): void {
     for (let i = 0; i < objs.length; i++) {
       const obj = objs[i];
       if (
@@ -73,10 +103,8 @@ export default class AbsorbablePoint
         this.absorbRange
       ) {
         obj.position.copyFrom(this._point);
-        return true;
       }
     }
-    return false;
   }
   updateOnScaled() {
     const scaled = this.getAllParentScaled();
@@ -101,6 +129,22 @@ export class AbsorbableLine extends Graphics implements AbsorbablePosition {
     this.absorbRange = absorbRange;
     this.redraw();
   }
+  isOverlapping(other: AbsorbablePosition): boolean {
+    if (other instanceof AbsorbableLine) {
+      const contain = isLineContainOther(
+        { p1: this.p1, p2: this.p2 },
+        { p1: other.p1, p2: other.p2 }
+      );
+      return contain;
+    }
+    return false;
+  }
+  compareTo(other: AbsorbablePosition): number {
+    if (other instanceof AbsorbableLine) {
+      return distance2(this.p1, this.p2) - distance2(other.p1, other.p2);
+    }
+    throw new Error('非可吸附线');
+  }
   redraw() {
     this.clear();
     this.lineStyle(1, new Color(this._color));
@@ -108,17 +152,15 @@ export class AbsorbableLine extends Graphics implements AbsorbablePosition {
     this.lineTo(this.p2.x, this.p2.y);
   }
 
-  tryAbsorb(...objs: DisplayObject[]): boolean {
+  tryAbsorb(...objs: DisplayObject[]): void {
     for (let i = 0; i < objs.length; i++) {
       const obj = objs[i];
       const p = obj.position.clone();
       if (linePoint(this.p1, this.p2, p, this.absorbRange, true)) {
         const fp = calculateFootPointFromPointToLine(this.p1, this.p2, p);
         obj.position.copyFrom(fp);
-        return true;
       }
     }
-    return false;
   }
 }
 
@@ -138,6 +180,18 @@ export class AbsorbableCircle extends Graphics implements AbsorbablePosition {
     this.absorbRange = absorbRange;
     this.redraw();
   }
+  isOverlapping(other: AbsorbablePosition): boolean {
+    if (other instanceof AbsorbableCircle) {
+      return this.p0.equals(other.p0) && this.radius === other.radius;
+    }
+    return false;
+  }
+  compareTo(other: AbsorbablePosition): number {
+    if (other instanceof AbsorbableCircle) {
+      return this.absorbRange - other.absorbRange;
+    }
+    throw new Error('非可吸附圆');
+  }
 
   redraw() {
     this.clear();
@@ -145,7 +199,7 @@ export class AbsorbableCircle extends Graphics implements AbsorbablePosition {
     this.drawCircle(this.p0.x, this.p0.y, this.radius);
   }
 
-  tryAbsorb(...objs: DisplayObject[]): boolean {
+  tryAbsorb(...objs: DisplayObject[]): void {
     for (let i = 0; i < objs.length; i++) {
       const obj = objs[i];
       const len = distance(
@@ -165,9 +219,7 @@ export class AbsorbableCircle extends Graphics implements AbsorbablePosition {
           obj.position
         );
         obj.position.copyFrom(p);
-        return true;
       }
     }
-    return false;
   }
 }
diff --git a/src/jlgraphic/message/WsMsgBroker.ts b/src/jlgraphic/message/WsMsgBroker.ts
index 8b8cd53..940b11a 100644
--- a/src/jlgraphic/message/WsMsgBroker.ts
+++ b/src/jlgraphic/message/WsMsgBroker.ts
@@ -22,7 +22,7 @@ export interface StompCliOption {
    * @returns
    */
   onAuthenticationFailed?: () => void;
-  reconnectDelay?: number; // 重连延时，默认3秒
+  reconnectDelay?: number; // 重连延时，默认3秒,设置为0不重连.
   heartbeatIncoming?: number; // 服务端过来的心跳间隔，默认30秒
   heartbeatOutgoing?: number; // 到服务端的心跳间隔，默认30秒
 }
@@ -36,18 +36,22 @@ const DefaultStompOption: StompCliOption = {
 };
 
 export class StompCli {
-  private static enabled = false;
-  private static options: StompCliOption;
   private static client: StompClient;
+  private static options: StompCliOption;
   private static appMsgBroker: AppWsMsgBroker[] = [];
+  /**
+   * key-订阅路径
+   */
+  subscriptions: Map<string, AppStateSubscription> = new Map<
+    string,
+    AppStateSubscription
+  >();
   private static connected = false;
   static new(options: StompCliOption) {
-    if (StompCli.enabled) {
-      // 已经启用
+    if (StompCli.client) {
+      // 已经创建
       return;
-      // throw new Error('websocket 已连接，若确实需要重新连接，请先断开StompCli.close再重新StompCli.new')
     }
-    StompCli.enabled = true;
     StompCli.options = Object.assign({}, DefaultStompOption, options);
     StompCli.client = new StompClient({
       brokerURL: StompCli.options.wsUrl,
@@ -62,6 +66,7 @@ export class StompCli {
     StompCli.client.onConnect = () => {
       // console.log('websocket连接(重连),重新订阅', StompCli.appMsgBroker.length)
       StompCli.connected = true;
+      StompCli.emitConnectStateChangeEvent();
       StompCli.appMsgBroker.forEach((broker) => {
         broker.resubscribe();
       });
@@ -83,10 +88,12 @@ export class StompCli {
     StompCli.client.onDisconnect = (frame: Frame) => {
       console.log('Stomp 断开连接', frame);
       StompCli.connected = false;
+      StompCli.emitConnectStateChangeEvent();
     };
     StompCli.client.onWebSocketClose = (evt: CloseEvent) => {
       console.log('websocket 关闭', evt);
       StompCli.connected = false;
+      StompCli.emitConnectStateChangeEvent();
     };
     // websocket错误处理
     StompCli.client.onWebSocketError = (err: Event) => {
@@ -96,8 +103,10 @@ export class StompCli {
     StompCli.client.activate();
   }
 
-  static isEnabled(): boolean {
-    return StompCli.enabled;
+  static emitConnectStateChangeEvent() {
+    StompCli.appMsgBroker.forEach((broker) => {
+      broker.app.emit('websocket-state-change', broker.app, StompCli.connected);
+    });
   }
 
   static isConnected(): boolean {
@@ -135,7 +144,6 @@ export class StompCli {
    * 关闭websocket连接
    */
   static close() {
-    StompCli.enabled = false;
     StompCli.connected = false;
     if (StompCli.client) {
       StompCli.client.deactivate();
diff --git a/src/jlgraphic/plugins/CommonMousePlugin.ts b/src/jlgraphic/plugins/CommonMousePlugin.ts
index bdd8747..b7a33f1 100644
--- a/src/jlgraphic/plugins/CommonMousePlugin.ts
+++ b/src/jlgraphic/plugins/CommonMousePlugin.ts
@@ -194,7 +194,7 @@ export class CommonMouseTool extends AppInteractionPlugin {
     const graphic = this.leftDownTarget.getGraphic();
     if (graphic) {
       const app = this.app;
-      console.log(this.leftDownTarget.isGraphic());
+      // console.log(this.leftDownTarget.isGraphic());
       // 图形选中
       if (!e.ctrlKey && !graphic.selected && graphic.selectable) {
         app.updateSelected(graphic);
diff --git a/src/jlgraphic/plugins/GraphicTransformPlugin.ts b/src/jlgraphic/plugins/GraphicTransformPlugin.ts
index 369d55b..07fa18e 100644
--- a/src/jlgraphic/plugins/GraphicTransformPlugin.ts
+++ b/src/jlgraphic/plugins/GraphicTransformPlugin.ts
@@ -171,11 +171,40 @@ export class GraphicTransformPlugin extends InteractionPluginBase {
     this.app.canvas.addAssistantAppend(this.apContainer);
     app.on('options-update', (options) => {
       if (options.absorbablePositions) {
-        this.absorbablePositions = options.absorbablePositions;
+        this.absorbablePositions = this.filterAbsorbablePositions(
+          options.absorbablePositions
+        );
       }
     });
   }
 
+  /**
+   * 过滤重复的吸附位置
+   * @param positions
+   * @returns
+   */
+  filterAbsorbablePositions(
+    positions: AbsorbablePosition[]
+  ): AbsorbablePosition[] {
+    const aps: AbsorbablePosition[] = [];
+    for (let i = 0; i < positions.length; i++) {
+      const ap1 = positions[i];
+      let ap: AbsorbablePosition | null = ap1;
+      for (let j = positions.length - 1; j > i; j--) {
+        const ap2 = positions[j];
+        if (ap.isOverlapping(ap2) && ap.compareTo(ap2) <= 0) {
+          ap = null;
+          break;
+        }
+      }
+      if (ap != null) {
+        aps.push(ap);
+      }
+    }
+    // console.log(positions, aps);
+    return aps;
+  }
+
   static new(app: GraphicApp) {
     return new GraphicTransformPlugin(app);
   }
@@ -266,9 +295,7 @@ export class GraphicTransformPlugin extends InteractionPluginBase {
         if (this.absorbablePositions) {
           for (let i = 0; i < this.absorbablePositions.length; i++) {
             const ap = this.absorbablePositions[i];
-            if (ap.tryAbsorb(...targets)) {
-              break;
-            }
+            ap.tryAbsorb(...targets);
           }
         }
         // 事件发布
diff --git a/src/jlgraphic/utils/GraphicUtils.ts b/src/jlgraphic/utils/GraphicUtils.ts
index 254e4bf..a710fde 100644
--- a/src/jlgraphic/utils/GraphicUtils.ts
+++ b/src/jlgraphic/utils/GraphicUtils.ts
@@ -607,3 +607,71 @@ export function getIntersectionPoint(line1: number[], line2: number[]) {
     -denominator;
   return new Point(x, y);
 }
+
+/**
+ * 是否平行线
+ * @param p1
+ * @param p2
+ * @param pa
+ * @param pb
+ * @returns
+ */
+export function isParallelLines(
+  p1: IPointData,
+  p2: IPointData,
+  pa: IPointData,
+  pb: IPointData
+): boolean {
+  const vle1 = Vector2.direction(Vector2.from(p1), Vector2.from(p2));
+  const vle2 = Vector2.direction(Vector2.from(pa), Vector2.from(pb));
+  if (vle2.equals(vle1)) {
+    return true;
+  }
+  return vle1.equals(Vector2.direction(Vector2.from(pb), Vector2.from(pa)));
+}
+
+/**
+ * 点是否在线段上
+ * @param p1
+ * @param p2
+ * @param p
+ * @returns
+ */
+export function isPointOnLine(
+  p1: IPointData,
+  p2: IPointData,
+  p: IPointData
+): boolean {
+  const vp1 = Vector2.from(p1);
+  const vp2 = Vector2.from(p2);
+  const vp = Vector2.from(p);
+  if (vp1.equals(vp) || vp2.equals(vp)) {
+    return true;
+  }
+  const vle = Vector2.direction(vp1, Vector2.from(p2));
+  const vpe = Vector2.direction(vp1, vp);
+  if (vle.equals(vpe)) {
+    return (
+      Vector2.difference(vp1, vp2).squaredLength() >=
+      Vector2.difference(vp1, vp).squaredLength()
+    );
+  }
+  return false;
+}
+/**
+ * 两条线段是否存在包含关系
+ * @param line1
+ * @param line2
+ * @returns
+ */
+export function isLineContainOther(
+  line1: { p1: IPointData; p2: IPointData },
+  line2: { p1: IPointData; p2: IPointData }
+): boolean {
+  return (
+    (isPointOnLine(line1.p1, line1.p2, line2.p1) &&
+      isPointOnLine(line1.p1, line1.p2, line2.p2)) ||
+    (isPointOnLine(line2.p1, line2.p2, line1.p1) &&
+      isPointOnLine(line2.p1, line2.p2, line1.p2))
+  );
+}
diff --git a/src/layouts/DrawLayout.vue b/src/layouts/DrawLayout.vue
index b6bc4a4..0c3dccc 100644
--- a/src/layouts/DrawLayout.vue
+++ b/src/layouts/DrawLayout.vue
@@ -134,6 +134,12 @@ onMounted(() => {
   const dom = document.getElementById('draw-app-container');
   if (dom) {
     const drawApp = drawStore.initDrawApp(dom);
+    drawApp.on('websocket-connected', (app) => {
+      console.log('应用websocket成功连接');
+    });
+    drawApp.on('websocket-disconnected', (app) => {
+      console.log('应用websocket断开连接');
+    });
     loadDrawDatas(drawApp);
     onResize();
     drawApp.enableWsStomp({