时间线把值编码为有序时间轴上的位置。普里斯特利 1765 年传记图影响了后来的图集。
工作报告、广告与作业中适合有序事件、时代、里程碑。若需要的是变化的量而非日期时,换一种形式。
Rules
- 规则 1 — Use 有序时间轴上的位置 as one channel, not two.
- 规则 2 — Direct labels beat a distant legend.
- 规则 3 — Do not hide zero. If you break the axis, say so.
- 规则 4 — Colour encodes category or magnitude, not both.
- 规则 5 — Put the claim in the title, not just “时间线”.
- 规则 6 — Source and period, even in small type.
Palette
- 色板 1 — Categories: distinct hues. Sequences: one hue, changing value.
- 色板 2 — Diverging: a neutral centre, emphasis at both ends.
- 色板 3 — One brand colour plus greys beats a rainbow.
- 色板 4 — Check contrast on a projector and in greyscale print.
Type
- 文字 1 — Tabular figures for numbers. Do not pour body copy into the chart.
- 文字 2 — Titles as sentences; axes as short nouns.
- 文字 3 — For CJK, drop weight one step and leave tracking.
时间线: honour 有序时间轴上的位置, and switch when 需要的是变化的量而非日期时.