[bug] 加载中国地图时，右下角的小岛屿都被隐藏

[muzlevy]

Version

5.0.2

Link to Minimal Reproduction

No response

Steps to Reproduce

1. 利用 json 数据来注册地图： echarts.registerMap("xxx",json)
2. 然后加载

Current Behavior

问题：渲染的 canvas 比较小的情况下，右下角部分岛屿会直接被隐藏；canvas 大一点的话就不会。这是什么引起的？可以解决吗？

如下图：

画布变大后显示完整了：

Expected Behavior

no.

Environment

- OS:Ubuntu 20.04.6 LTS
- Browser: Chrome 111.0.5563.146（正式版本）
- Framework:

Any additional comments?

No response

[echarts-bot]

@muzlevy It seems you are not using English, I've helped translate the content automatically. To make your issue understood by more people and get helped, we'd like to suggest using English next time. 🤗

TRANSLATED

TITLE

[Bug] When loading the map of China, the small islands in the lower right corner are hidden

BODY

Version

5.0.2

Link to Minimal Reproduction

No response

Steps to Reproduce

1. Register the map with 'json' data: 'echarts.registerMap('xxx',json)'
2. Then load

Current Behavior

Problem: When the rendered 'canvas' is relatively small, some islands in the lower right corner will be directly hidden; 'canvas' is not a little bigger. What causes this? Can it be solved?

As shown in the following figure:

The canvas is complete when it gets bigger:

Expected Behavior

no.

Environment

- OS:Ubuntu 20.04.6 LTS
- Browser: Chrome 111.0.5563.146 (official version)
- Framework:

Any additional comments?

No response

[echarts-bot]

@muzlevy Please provide a demo for the issue either with Official Editor, CodePen, CodeSandbox or JSFiddle.

[helgasoft]

looks like subpixel issue to me.
Maybe the real question is "How does ECharts handle subpixel display?". I suppose they are ignored (not shown).

[muzlevy]

looks like subpixel issue to me. Maybe the real question is "How does ECharts handle subpixel display?". I suppose they are ignored (not shown).

Thank you very much, I can't express it well, this is what I want to ask.

[plainheart]

@muzlevy I can't reproduce this issue with this example. This issue should have been fixed by ecomfe/zrender#760. Instead of the v5.0.2, please try to use the newer versions >= v5.1.2.