diff --git a/src/drawApp/lineNetApp.ts b/src/drawApp/lineNetApp.ts
index b4b4cac..adaccba 100644
--- a/src/drawApp/lineNetApp.ts
+++ b/src/drawApp/lineNetApp.ts
@@ -123,6 +123,7 @@ export function initLineNetApp(): IGraphicApp {
   });
   lineNetApp.subscribe({
     destination: '/queue/lineNet',
+
     messageConverter: (message: Uint8Array) => {
       const storage = state.WsLineNetMessage.deserialize(message);
       const states: GraphicState[] = [];
diff --git a/src/graphics/section/SectionDrawAssistant.ts b/src/graphics/section/SectionDrawAssistant.ts
index 1a82c3d..a4b8ec7 100644
--- a/src/graphics/section/SectionDrawAssistant.ts
+++ b/src/graphics/section/SectionDrawAssistant.ts
@@ -485,10 +485,11 @@ export class SectionPointEditPlugin extends GraphicInteractionPlugin<Section> {
           }
           points.forEach((ps, i) => {
             const data = new LogicSectionData();
-            const logicSectionDA = this.drawAssistant.app.drawAssistants.find(
-              (da) => da instanceof LogicSectionDraw
-            ) as LogicSectionDraw;
-            data.id = logicSectionDA.nextId();
+            const logicSectionDraw =
+              this.drawAssistant.app.getDrawAssistant<LogicSectionDraw>(
+                LogicSection.Type
+              );
+            data.id = logicSectionDraw.nextId();
             data.code = `${sectionData.code}-${codeAppend.charAt(i % 26)}`;
             data.points = ps.map(
               (p) => new graphicData.Point({ x: p.x, y: p.y })
@@ -512,9 +513,9 @@ export class SectionPointEditPlugin extends GraphicInteractionPlugin<Section> {
                 )
               ),
             ];
-            const g = logicSectionDA.graphicTemplate.new();
+            const g = logicSectionDraw.graphicTemplate.new();
             g.loadData(data);
-            logicSectionDA.storeGraphic(g);
+            logicSectionDraw.storeGraphic(g);
             children.push(g);
           });
           sectionData.children = children.map((g) => g.datas.id);
diff --git a/src/pages/LineMonitorPage.vue b/src/pages/LineMonitorPage.vue
index 7013df8..4c3d40f 100644
--- a/src/pages/LineMonitorPage.vue
+++ b/src/pages/LineMonitorPage.vue
@@ -16,7 +16,6 @@ import { useLineStore } from 'src/stores/line-store';
 import { useRoute } from 'vue-router';
 import { useLineNetStore } from 'src/stores/line-net-store';
 import StateProperties from 'src/components/state-app/StateProperties.vue';
-import { JlGraphic } from 'src/jl-graphic';
 
 const props = withDefaults(
   defineProps<{