岔芯边缘道岔区段关联道岔导致报错调整

src/jmapNew/shape/graph/Section/index.js

@@ -483,6 +483,9 @@ export default class Section extends Group {
         // 哈尔滨线路 南京二 道岔相关区段设置 默认颜色
         if (this.style.Switch.sectionAction.flag && model.relSwitchCode && !flag) {
             const switchModel = this.mapDevice[model.relSwitchCode];
+            if (!switchModel) {
+                return;
+            }
             const sectionB = switchModel.sectionBCode === model.code ? this.mapDevice[switchModel.sectionBCode] : null;
             const sectionC = switchModel.sectionCCode === model.code ? this.mapDevice[switchModel.sectionCCode] : null;
             const sectionA = this.mapDevice[switchModel.sectionACode];