🤔 请问heatmap 3d图层，怎么按照等分位、等间距等方式根据字段值映射高度呢？

### 🐛 Question description [Please make everyone to understand it]

### 💻 Link to minimal reproduction

Please provide a link by forking these links [L7Plot](https://codesandbox.io/s/l7plot-issue-template-ckpvq?file=/src/index.ts) or GitHub repo. What is a minimal reproduction, and why is it required?

### 🏞 Expected result

### 🚑 Any additional [like screenshots]

- **L7Plot Version**:
- **Platform**:

No files, tests, entry points, minimal reproduction, or expected behavior are provided. Start by obtaining a reproducible L7Plot example and clarifying the intended quantile and equal-interval height mappings; done should be defined by agreed mapping behavior and coverage for the supported input cases.

Written by the indexing model from the issue text.