导出线段优化

src/assets/MouseTool.js

@@ -39,6 +39,7 @@ export default class MouseTool {
 
       this._mouseTool.close()
       // this._mouseTool.setMap(null)
+      this._mouseTool.g = null
       this._mouseTool = null
     }
   }

src/components/ExportDialog.vue

@@ -28,6 +28,9 @@ export default {
       })
       return list
     }
+  },
+  mounted () {
+
   },
   methods: {
     handleCheckedCitiesChange () {
@@ -45,6 +48,14 @@ export default {
       this.text = sb
       this.$emit('exportLine', list.map(t => t.id))
     }
+  },
+  watch: {
+    visible (val) {
+      if (val) {
+        this.checkList = this.lineList.map(t => t.id)
+        this.handleCheckedCitiesChange()
+      }
+    }
   }
 }
 </script>

src/views/Home.vue

@@ -307,6 +307,21 @@ export default {
         height: width + 'px'
       }
     }
+  },
+  watch: {
+    exportVisible (val) {
+      if (!val) {
+        let list = this.lineList.map(lineObj => {
+          return {
+            ...lineObj,
+            color: 'blue',
+            lastPointColor: undefined,
+            lastPointSize: undefined
+          }
+        });
+        this.lineList = list
+      }
+    }
   }
 }
 </script>