1.3 0.4

package-lock.json

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     "vue-hot-reload-api": {
       "version": "2.3.4",
-      "resolved": "https://registry.npmmirror.com/vue-hot-reload-api/-/vue-hot-reload-api-2.3.4.tgz",
+      "resolved": "https://registry.npmjs.org/vue-hot-reload-api/-/vue-hot-reload-api-2.3.4.tgz",
       "integrity": "sha512-BXq3jwIagosjgNVae6tkHzzIk6a8MHFtzAdwhnV5VlvPTFxDCvIttgSiHWjdGoTJvXtmRu5HacExfdarRcFhog==",
       "dev": true
     },

src/view/myIndex.vue

@@ -17,9 +17,11 @@
         <el-form-item label="标   量" >
         <el-cascader
         transfer="true"
+        clearable
         :popper-append-to-body="false"
           v-model="arrvalue"
           :options="options"
+          :props="props"
           @change="handleChange($event)"></el-cascader>
             </el-form-item>
       </div>
@@ -58,7 +60,6 @@
             <div class="item" @click="Prev" >上一分钟</div>
             <div class="item" @click="increment">下一分钟</div>
        </div>
-     
          <!-- <button @click="inOpacity">透明度： {{ opacity }}</button> -->
     <div  class="dialog-footer">
     <span class="btn" @click="dialogVisible = false">关 闭</span>
@@ -93,6 +94,8 @@ import vtkLookupTable from '@kitware/vtk.js/Common/Core/LookupTable';
 import vtkDataArray from '@kitware/vtk.js/Common/Core/DataArray.js';
 import vtkColorTransferFunction from '@kitware/vtk.js/Rendering/Core/ColorTransferFunction';
 import { I } from '@kitware/vtk.js/macros2.js'
+const props = {
+}
 let time=3*60
 let listArray=reactive([
 {id:0,img:p1,name:'灾情演化'},
@@ -131,6 +134,9 @@ let options=reactive( [
       children: [{
         value: 'Height',
         label: '水位高度源'
+      }, {
+        value: 'SiO2',
+        label: 'SiO2'
       }]
     },
     ])
@@ -200,13 +206,20 @@ function sleep(numberMillis) {
   console.log(exitTime);      
 }
 //联级选择
-function handleChange(val){//  
- console.log(val)
+function exchange(){
+  console.log(1111)
+    arrvalue=[];
+    console.log(arrvalue);
+}
+function handleChange(val){
+  
+
+
   arrvalue=val;
   console.log("arrvalue",arrvalue);
-  min.value=0.0;
-  max.value=1.0;
-  changeScalar();
+ // min.value=0.0;
+ // max.value=1.0;
+ // changeScalar();
 }
 //暂停
 function suspend(){