添加搜索条件

ruoyi-ui/src/views/realTimeMonitoring/historicalRoute/index.vue

@@ -46,6 +46,8 @@ const dateRange = ref([])
 let map = null
 let polyline = null
 let polylinePath = ref([])
+let distance = null
+let text = null
 
 
 let mouseTool = null
@@ -108,6 +110,7 @@ const  convertFrom = (LngLatArray, success) =>{
 const handleQuery = () => {
   polyline ? map.remove([polyline]) : ''
   getTrack(proxy.addDateRange(queryParams.value, dateRange.value)).then(e => {
+    text&&text.remove()
     let pathRow = e.data.map(val => [val.longitude, val.latitude])
     convertFrom(pathRow,(result)=>{
       let lnglats = result.map(e => [e.lng, e.lat]);
@@ -118,8 +121,8 @@ const handleQuery = () => {
         strokeWeight: 6 // 线宽
       })
       map.add(polyline);
-      let distance = Math.round(AMap.GeometryUtil.distanceOfLine(lnglats));
-      let text = new AMap.Text({
+      distance = Math.round(AMap.GeometryUtil.distanceOfLine(lnglats));
+      text = new AMap.Text({
         position: lnglats.at(-1),
         text: '行驶路径' + distance + '米',
         offset: new AMap.Pixel(-20, -20)