feat: 历史曲线增加下载选项

packages/extend-components/EC_HistoryView/src/utils.js

@@ -491,7 +491,7 @@ const returnXAxis = ({
             // let markPoint = showPoint ? minMaxMarkPoint(item, index, dataSource) : {};
             let markPoint = {};
             let _lineStyle = {};
-/*            if (item.deviceType === '预测' && chartType === 'lineChart') {
+            /*            if (item.deviceType === '预测' && chartType === 'lineChart') {
                             markPoint = null;
                             markLine = null;
                             _lineStyle = {
@@ -1207,6 +1207,16 @@ const optionGenerator = (
         tooltip,
         visualMap,
         ...restOption,
+        toolbox: {
+            top:-5,
+            left: 80,
+            feature: {
+                dataZoom: {
+                    yAxisIndex: 'none'
+                },
+                saveAsImage: {}
+            }
+        }
     };
     return _options;
 };