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deer-flow/skills/public/chart-visualization/references/generate_area_chart.md
JeffJiang 4d5fdcb8db Consolidates market and data analysis skills; adds chart viz (#36)
Unifies market analysis, data analysis, and consulting reporting into a comprehensive consulting-analysis skill, enabling a two-phase workflow from analysis framework design to professional report generation. Introduces a DuckDB-based data analysis utility for Excel/CSV files and a chart-visualization skill with a flexible JS interface and extensive chart type documentation. Removes the legacy market analysis skill to streamline report generation and improve extensibility for consulting and data-driven workflows.
2026-02-12 11:08:09 +08:00

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# generate_area_chart — 面积图
## 功能概述
展示连续自变量(常为时间)下的数值趋势,可启用堆叠观察不同分组的累计贡献,适合 KPI、能源、产出等时间序列场景。
## 输入字段
### 必填
- `data`: 数组,元素包含 `time`string`value`number堆叠时需补充 `group`string至少 1 条记录。
### 可选
- `stack`: boolean默认 `false`,开启堆叠需确保每条数据都含 `group` 字段。
- `style.backgroundColor`: string设置图表背景色`#fff`)。
- `style.lineWidth`: number自定义面积边界的线宽。
- `style.palette`: string[],传入调色板数组用于系列着色。
- `style.texture`: string默认 `default`,可选 `default`/`rough` 以控制手绘质感。
- `theme`: string默认 `default`,可选 `default`/`academy`/`dark`
- `width`: number默认 `600`,控制图表宽度。
- `height`: number默认 `400`,控制图表高度。
- `title`: string默认空字符串用于设置图表标题。
- `axisXTitle`: string默认空字符串用于设置 X 轴标题。
- `axisYTitle`: string默认空字符串用于设置 Y 轴标题。
## 使用建议
保证 `time` 字段格式统一(如 `YYYY-MM`);堆叠模式下各组数据需覆盖相同的时间点,可先做缺失补值。
## 返回结果
- 返回图像 URL并在 `_meta.spec` 中附带完整面积图配置,可供二次渲染或追踪。