plainheart commented on a change in pull request #12961:
URL:
https://github.com/apache/incubator-echarts/pull/12961#discussion_r470588142
##########
File path: src/model/mixin/itemStyle.ts
##########
@@ -54,15 +64,24 @@ class ItemStyleMixin {
includes?: readonly (keyof ItemStyleOption)[]
): ItemStyleProps {
const style = getItemStyle(this, excludes, includes);
- const lineDash = this.getBorderLineDash();
- lineDash && (style.lineDash = lineDash);
+ style.lineDash = this.getBorderLineDash(style.lineWidth);
return style;
}
- getBorderLineDash(this: Model): number[] {
+ getBorderLineDash(this: Model, lineWidth?: number): number[] {
const lineType = this.get('borderType');
- return (lineType === 'solid' || lineType == null) ? null
- : (lineType === 'dashed' ? [5, 5] : [1, 1]);
+ if (lineType == null || lineType === 'solid') {
+ return [];
+ }
+
+ lineWidth = lineWidth || 0;
+
+ let dashArray = this.get('borderDashArray');
+ // compatible with single number
+ if (dashArray != null && !isNaN(dashArray)) {
+ dashArray = [+dashArray];
+ }
+ return dashArray || (lineType === 'dashed' ? [5, 5] : [1, 1]);
}
Review comment:
The second issue:
if we make `borderDashArray/dashArray(line)` to be a value of
`borderType/type(line)`,
the `ITEM_STYLE_KEY_MAP` in `model/mixin/itemStyle.ts` will miss the
property `borderDash` and
the `LINE_STYLE_KEY_MAP` in `model/mixin/lineStyle.ts` will miss the
property `lineDash`.
This two missing properties can't be get by `getItemVisual`, so dash style
will be not working in some cases like `lines`,
refer to
[chart/helper/Line.ts#L206](https://github.com/apache/incubator-echarts/blob/next/src/chart/helper/Line.ts#L206).
It's different from [line
series](https://github.com/apache/incubator-echarts/blob/next/src/chart/line/LineView.ts#L543)
and
[4.x](https://github.com/apache/incubator-echarts/blob/master/src/chart/helper/Line.js#L374)
which are using `lineStyleModel.getLineStyle()`
So how should I do to make it work for those series dependent on
`chart/helper/Line.js`?
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