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Frontend Dataviz

skill-endearqb-endearqb-skills-endearqb-frontend-dataviz · by endearqb

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Install

$ agentstack add skill-endearqb-endearqb-skills-endearqb-frontend-dataviz

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About

Data Visualization Skill(SWD 原则)

核心理念

遵循 Cole Nussbaumer Knaflic 的 Storytelling with Data 六大原则:

  1. 理解背景 — 谁是受众?他们需要做什么决策?
  2. 选择合适图表 — 见下方图表选择矩阵
  3. 消除杂乱 — 删除所有不传递信息的元素(网格线、3D 效果、不必要的边框)
  4. 引导注意力 — 用颜色/粗细/位置突出关键信息,其余降至背景色
  5. 像设计师一样思考 — 对齐、留白、层次
  6. 讲述故事 — 图表标题应是洞察,而非描述("Q3 销售额下降 18%" 而非 "Q3 销售额")

Step 1:数据分析

拿到数据后,先判断图表类型:

| 目的 | 推荐图表 | |------|---------| | 比较类别 | 条形图(横向更易读标签)| | 展示趋势 | 折线图 | | 展示构成 | 堆叠条形 / 瀑布图 | | 展示相关性 | 散点图 | | 展示分布 | 直方图 / 箱线图 | | 部分与整体 | 仅当类别 ≤5 时用饼图,否则用条形 |


Step 2:用 askuserinput_v0 工具向用户提问

必须在生成任何图表前,使用 ask_user_input_v0 工具一次性提出以下两个问题。

ask_user_input_v0({
  questions: [
    {
      question: "颜色风格?",
      type: "single_select",
      options: [
        "专业商务(极简灰+强调色)",
        "社交媒体(鲜艳多彩,高饱和)"
      ]
    },
    {
      question: "是否使用拟物图表(pictograph)?",
      type: "single_select",
      options: [
        "普通图表",
        "拟物图表(用实物图标代替条形)"
      ]
    }
  ]
})

Step 3:生成图表(HTML + Chart.js)

输出统一使用 HTML Artifact,内嵌 Chart.js(从 cdnjs 加载)。

颜色风格映射:

  • 专业商务 → 灰色基调 + #2563EB 单强调色,其余数据点全灰 #D1D5DB
  • 社交媒体 → 高饱和多色方案,见 references/color-palettes.md

拟物图表: 用户选择后,使用 SVG Pattern + Chart.js canvas 实现,见 references/pictograph-icons.md

SWD 视觉规范(必须遵守):

网格线:极浅灰 #F3F4F6 或隐藏
边框:chart border 设为 none
图例:仅必要时显示,放在图表上方(自定义 HTML,不用 Chart.js 默认)
标题字体:加粗,16-18px;标签:12-13px #6B7280
柱间距:categoryPercentage: 0.6, barPercentage: 0.75

图表标题规范:

  • ✅ 洞察型:"华东区 Q3 营收同比下降 18%,拖累全国整体表现"
  • ❌ 描述型:"各区域 Q3 营收对比"

完整代码示例见 references/chart-examples.md


Step 4:输出检查清单

  • [ ] 已通过 askuserinput_v0 收集用户偏好?
  • [ ] 标题是洞察而非描述?
  • [ ] 颜色方案与用户选择匹配?
  • [ ] 关键数据点已高亮?
  • [ ] 删除了所有装饰性杂乱元素?
  • [ ] 有数据来源/时间范围注释?

参考文件

  • references/color-palettes.md — 配色方案
  • references/pictograph-icons.md — 拟物图表 SVG 图标库
  • references/chart-examples.md — HTML + Chart.js 完整示例

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.