diff --git a/src/core/Constract.ts b/src/core/Constract.ts
index afd4a7e..a957ae6 100644
--- a/src/core/Constract.ts
+++ b/src/core/Constract.ts
@@ -13,7 +13,7 @@ export default Object.freeze({
   // 测量相关的光标模式
   CursorModeMeasure: 'measure',
 
-  CursorModeConveyor: 'conveyor',
+  CursorModeWay: 'way',
 
   // 选择模式
   CursorModeSelectByRec: 'selectByRec'
diff --git a/src/core/base/BaseInteraction.ts b/src/core/base/BaseInteraction.ts
index 6082099..dfb8ad7 100644
--- a/src/core/base/BaseInteraction.ts
+++ b/src/core/base/BaseInteraction.ts
@@ -119,7 +119,7 @@ export default abstract class BaseInteraction {
 
     this.viewerDom = this.viewport.viewerDom
     this.canvas = this.viewport.renderer.domElement
-    if (option.startPoint) {
+    if (option?.startPoint) {
       this.linkStartPointId = option.startPoint
     }
     if (this.linkStartPointId) {
@@ -264,15 +264,18 @@ export default abstract class BaseInteraction {
     }
     this.lastClickTime = now
 
-    const from = this.viewport.stateManager.findItemById(this.linkStartPointId)
-    if (!from) {
-      system.showErrorDialog(`Cannot find state item: ${this.linkStartPointId}`)
-      return
-    }
-
     // 如果正式的点命中到同类型的节点上，则不添加新的点，只牵线到该点
     let catchPoint: ItemJson | null = this.viewport.stateManager.findItemByPosition(point, this.itemTypeName)
 
+    let from: ItemJson | undefined = undefined
+    if (this.linkStartPointId) {
+      from = this.viewport.stateManager.findItemById(this.linkStartPointId)
+      if (!from) {
+        system.showErrorDialog(`Cannot find state item: ${this.linkStartPointId}`)
+        return
+      }
+    }
+
     if (catchPoint) {
       // 连线到目标点
       if (this.linkStartPointId === catchPoint.id) {
@@ -323,8 +326,13 @@ export default abstract class BaseInteraction {
       stateManager.beginStateUpdate({ createFromInteraction: true })
       // 关联2个点
       stateManager.vdata.items.push(catchPoint)
-      catchPoint.dt.center.push(this.linkStartPointId)
-      from.dt.center.push(catchPoint.id)
+      if (from) {
+        catchPoint.dt.center.push(this.linkStartPointId)
+        from.dt.center.push(catchPoint.id)
+
+      } else {
+        stateManager.vdata.items.push(catchPoint)
+      }
       stateManager.endStateUpdate()
     }
 
diff --git a/src/editor/Model2DEditor.vue b/src/editor/Model2DEditor.vue
index d2201fd..7999e48 100644
--- a/src/editor/Model2DEditor.vue
+++ b/src/editor/Model2DEditor.vue
@@ -39,9 +39,9 @@
                    :type="state?.cursorMode===Constract.CursorModeMeasure?'primary':''"
                    @click="()=>state.cursorMode = Constract.CursorModeMeasure"></el-button>
         <span class="section-toolbar-line"></span>
-        <el-button title="输送线" :icon="renderIcon('fa Line')" link
-                   :type="state?.cursorMode===Constract.CursorModeConveyor?'primary':''"
-                   @click="()=>state.cursorMode = Constract.CursorModeConveyor"></el-button>
+        <el-button title="AGV线路" :icon="renderIcon('fa Line')" link
+                   :type="state?.cursorMode===Constract.CursorModeWay?'primary':''"
+                   @click="()=>state.cursorMode = Constract.CursorModeWay"></el-button>
       </div>
       <div class="section-toolbar-right">
         <el-input v-model="searchKeyword" size="small" style="width: 110px; margin-right: 5px;"