清楚计算的值

src/components/TerrainAnalysis/TerrainCutFillAnalysis/TerrainCutFillAnalysis.vue

@@ -119,6 +119,8 @@ export default {
       that.handler_Cut_fill.clear();
       viewer.scene.globe.removeAllExcavationRegion();
 
+      that.result=null;
+
     }
   },
   beforeCreate() { }, //生命周期 - 创建之前