[Feature] markArea中label的dx和dy支持函数

描述

贡献者指南

技术栈

typescriptjavascript

领域

frontend

议题类型

feature

难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。

3

预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。

1-2 days

活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。

blocked

清晰度议题是否清楚说明期望改动、验收标准和下一步。

mostly clear

前置要求

TypeScriptVChart markArea componentGitHub workflow

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

40

研究方向

Examine the VChart source code, specifically the markArea label rendering logic (likely in packages/vchart/src/component/mark area/). Look for how dx and dy are currently used; they are likely numeric values. The task is to modify them to accept functions that return numbers. Check other similar properties in VChart that already support function types as a pattern. Since the issue has two assignees, check their progress and coordinate contributions. There are no linked PRs yet.