scale time mask参数能否支持自定义函数

### 问题描述

RT

### 重现链接

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### 重现步骤

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### 预期行为

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### 平台

- 操作系统: [macOS, Windows, Linux, React Native ...]
- 网页浏览器: [Google Chrome, Safari, Firefox]

### 屏幕截图或视频（可选）

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### 补充说明（可选）

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The issue names only the scale time mask parameter and gives no file, test, reproduction, or expected behavior. First clarify the desired custom-function input, invocation behavior, and acceptance cases, then locate the scale implementation and add focused coverage for the agreed behavior.

Written by the indexing model from the issue text.