Bug with width of markline

[ezubarev]

Sometimes line width doesn't match provided settings.

markLine: {
    lineStyle: {
        normal: {
            type: 'solid',
            width: 1,
            color: 'black'
        },
    },
}

Two lines have the same configuration but the upper one is wider than lower one.

http://gallery.echartsjs.com/editor.html?c=xCUWInr4gz&v=1

Probably, you have to resize a window to reproduce it.

[pissang]

It's a common subpixel artifact in canvas when the pixel is not exactly on the x.5 position. We will add optimization in this case.

[ezubarev]

Thank you, @pissang! Interesting to see how you will fix it in the code.

[deqingli]

@ezubarev I have fixed the problem, you can see it with the associated commit.

[ezubarev]

Great! @deqingli, I have written some comments for your commit. Waiting for your explanations.

[ezubarev]

Bug has been reproduced in latest version. You should fix it again.

[echarts-bot]

This issue is not created using issue template so I'm going to close it. 🙊
Sorry for this, but it helps save our maintainers' time so that more developers get helped.
Feel free to create another issue using the issue template.

这个 issue 未使用 issue 模板 创建，所以我将关闭此 issue。
为此带来的麻烦我深表歉意，但是请理解这是为了节约社区维护者的时间，以更高效地服务社区的开发者群体。
如果您愿意，可以请使用 issue 模板重新创建 issue。

[ezubarev]

@pissang @deqingli
Bug has been reproduced in latest version. You should fix it again.