CN-525 echarts图内文字动态调整大小,问题修复：折线图markline标签未显示完全

src/utils/tools.js

@@ -668,20 +668,37 @@ export function handleEchartFontSize (option) {
   const newSeries = []
   const chartType = chartOption.series[0].type
   chartOption.series.forEach((series) => {
-    const seriesNew = {
-      ...series,
-      label: {
-        ...series.label,
-        fontSize: echartLabelFontSize
-      },
-      markLine: {
-        ...series.markLine,
+    if (series.markLine) {
+      const seriesNew = {
+        ...series,
         label: {
+          ...series.label,
           fontSize: echartLabelFontSize
+        },
+        markLine: {
+          ...series.markLine,
+          label: {
+            ...series.markLine.label,
+            fontSize: echartLabelFontSize
+          }
         }
       }
+      newSeries.push(seriesNew)
+    } else {
+      const seriesNew = {
+        ...series,
+        label: {
+          ...series.label,
+          fontSize: echartLabelFontSize
+        },
+        markLine: {
+          label: {
+            fontSize: echartLabelFontSize
+          }
+        }
+      }
+      newSeries.push(seriesNew)
     }
-    newSeries.push(seriesNew)
   })
 
   if (chartType === 'pie') {