ant-design/docs/spec/shadow.zh-CN.md
二货爱吃白萝卜 cbcfd38ca7
docs: v5 site upgrade (#38328)
* build: try to use dumi as doc tool

* docs: migrate demo structure to dumi way

* refactor: use type export & import

* docs: migrate demo previewer to dumi

* docs: create empty layout & components

* docs: apply custom rehype plugin

* docs: create empty extra pages

* docs: Add Banner component

* chore: move theme tsconfig.json

* docs: home page init

* docs: migrate header (#37896)

* docs: header

* docs: update

* docs: home init

* clean up

* test: fix site lint

* chore: tsc ignore demo

* chore: dumi demo migrate script

* chore: cards

* docs: home layout

* docs: Update locale logic

* docs: fix getLink logic

* chore: fix ci (#37899)

* chore: fix ci

* ci: remove check-ts-demo

* ci: preview build

* test: ignore demo.tsx

* chore: update script

* test: update snapshot

* test: update node and image test

* chore: add .surgeignore

* docs: layout providers (#37908)

* docs: add components sidebar (#37923)

* docs: sidebar

* docs: update docs title

* docs: update design doc

* chore: code clean

* docs: handle changelog page

* docs: add title

* docs: add subtitle

* docs: active header nav

* chore: code clean

* docs: overview

* chore: code clean

* docs: update intl (#37918)

* docs: update intl

* chore: code clean

* docs: update favicons

* chore: update testPathIgnorePatterns

* chore: code clean

* chore: code clean

* chore: copy 404.html (#37996)

* docs: Home page theme picker

* chore: Update migrate script

* docs: home page update

* docs: theme editor style

* docs: theme lang

* chore: update migrate.js

* docs: fix demo (#38094)

* chore: update migrate.js

* docs: update md

* docs: update demo

* test: fix snapshot

* chore: move debug to code attr in migrate script

* chore: update md

Co-authored-by: PeachScript <scdzwyxst@gmail.com>

* feat: overview page

* feat: Migrate `404` page (#38118)

* feat: migrate IconSearch component (#37916)

* feat<site/IconSearch>: copy IconDisplay from site to .dumi

* feat<site/IconSearch>: change docs of icon

* feat<site/IconSearch>: tweak

* feat<site/IconSearch>: use useIntl instead of injectIntl

* feat<site/IconSearch>: fix ts type error

* feat<site/IconSearch>: use intl.formatMessage to render text

* docs: Adjust home btn sizw

* docs: Update doc

* feat: v5 site overview page (#38131)

* feat: site

* fix: fix

* feat: v5 site overview page

* fix: fix path

* fix: fix

* fix: fix

* docs: fix margin logic

* feat: v5 site change-log page (#38137)

* feat: v5 site change-log page (#38162)

* docs: site redirect to home pag

* docs: theme picker

* docs: use react-intl from dumi (#38183)

* docs: Theme Picker

* docs: update dumi config

* docs: home back fix

* docs: picker colorful

* docs: locale of it

* docs: update components desc

* docs: site of links

* docs: update components list

* docs: update desc

* feat: Migrate `DemoWrapper` component (#38166)

* feat: Migrate `DemoWrapper` component

* feat: remove invalid comments and add comment for `key` prop

* docs: FloatButton pure panel

* chore: update demo

* chore: update dumi config

* Revert "chore: update demo"

This reverts commit 028265d3ba.

* chore: test logic adjust to support cnpm modules

* chore: add locale alias

* docs: /index to /

* docs: add locale redirect head script

* chore: adjust compact

* docs: fix missing token

* feat: compact switch

* chore: code clean

* docs: update home

* docs: fix radius token

* docs: hash of it

* chore: adjust home page

* docs: Add background map

* docs: site theme bac logic

* docs: avatar

* docs: update logo color

* docs: home banner

* docs: adjust tour size

* docs: purepanl update

* docs: transfooter

* docs: update banner gif

* docs: content (#38361)

* docs: title & EditButton

* docs: content

* chore: fix toc

* docs: resource page

* docs: transform resource data from hast

* docs: filename & Resource Card

* chore: enable prerender

* chore: remove less

* docs: toc style

* chore: fix lint

* docs: fix Layout page

* docs: fix CP page

* chore: update demos

* docs: workaround for export dynamic html

* chore: enable demo eslint

* docs: table style

* fix: header shadow

* chore: update snapshot

* fix: toc style

* docs: add title

* docs: Adjust site

* feat: helmet

* docs: site css

* fix: description

* feat: toc debug

* docs: update config-provider

* feat: use colorPanel

* fix: colorPanel value

* feat: anchor ink ball style

* feat: apply theme editor

* fix: code block style

* chore: update demo

* chore: fix lint

* chore: code clean

* chore: update snapshot

* feat: ts2js

* chore: description

* docs: site ready for ssr

includes:
- move client render logic to useEffect in site theme
- extract antd cssinjs to a single css file like bisheng
- workaround to support react@18 pipeableStream for emotion

* chore: bump testing lib

* docs: font size of title

* chore: remove react-sortable-hoc

* chore: update snapshot

* chore: update script

Co-authored-by: PeachScript <scdzwyxst@gmail.com>
Co-authored-by: MadCcc <1075746765@qq.com>
Co-authored-by: zqran <uuxnet@gmail.com>
Co-authored-by: TrickyPi <530257315@qq.com>
Co-authored-by: lijianan <574980606@qq.com>
2022-11-09 12:28:04 +08:00

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---
group: 全局样式
order: 6
title: 阴影
---
阴影来源于现实生活的反映物体与物体之间距离的物理现象。在界面中,我们往往通过模拟元素的投影直截了当的来告诉用户,元素之间的高度距离与层次关系。
## 高度
阴影是由两个不同阶层的平面产生,且强度由两者之间的距离决定。所以物体的高度直接影响物体的阴影,对象离地面越远阴影越大,模糊值越高。我们将系统分为无、低、中、高四个 UI 层级,各自分布在不同的高度层级,阴影属性也有所不同。
<div>
<img class="preview-img no-padding" src="https://gw.alipayobjects.com/mdn/rms_08e378/afts/img/A*o-OFQK5hJP0AAAAAAAAAAABkARQnAQ" alt="高度">
</div>
**第 0 层**:物体紧贴地面,投影与物体完全重叠,在界面中不对此层定义阴影值。如:输入框等;
<div>
<img class="preview-img no-padding" src="https://gw.alipayobjects.com/mdn/rms_08e378/afts/img/A*li3zQbxRuOMAAAAAAAAAAABkARQnAQ" alt="高度">
</div>
**第 1 层**: 物体位于低层级,此时物体被操作(悬停、点击等)触发为悬浮状态,当操作完成或取消时,悬停状态反馈也跟随消失,物体回归到原有的层级中,如:卡片 hover 等;
<div>
<img class="preview-img no-padding" src="https://gw.alipayobjects.com/mdn/rms_08e378/afts/img/A*mXnoSI8MWuEAAAAAAAAAAABkARQnAQ" alt="高度">
</div>
**第 2 层**:物体位于中层级,此时物体与基准面的关系是展开并跟随,物体由地面上的元素展开产生,会跟随元素所在层级的移动而移动,如:下拉面板等;
<div>
<img class="preview-img no-padding" src="https://gw.alipayobjects.com/mdn/rms_08e378/afts/img/A*yNOwR6Gqy4MAAAAAAAAAAABkARQnAQ" alt="高度">
</div>
**第 3 层**:物体位于高层级,该物体的运动和其他层级没有关联,如:对话框等。
<div>
<img class="preview-img no-padding" src="https://gw.alipayobjects.com/mdn/rms_08e378/afts/img/A*4pFoR4gWL2oAAAAAAAAAAABkARQnAQ" alt="高度">
</div>
## 光源
阴影的方向是由光源与物体的相对位置所决定的。假定光源所处高度不变,光源与物体的距离和物体与阴影的距离成正比。光源越远,则阴影距离物体越远。阴影的方向在界面里通常使用 `X, Y` 坐标轴来表示。
<div>
<img class="preview-img no-padding" src="https://gw.alipayobjects.com/mdn/rms_08e378/afts/img/A*KgGmQ79c38oAAAAAAAAAAABkARQnAQ" alt="光源">
</div>
## 阴影值
综上可知。阴影由光照而产生。主要影响其值的是物体高度与光源位置:
1. 在不同高度上时,投射出的阴影颜色、模糊度、面积都有所区分。离地面越远的物体,产生的阴影颜色越淡、模糊度越高、面积越大;反之则颜色更深、模糊度越低、面积越小;
2. 而投影的方向主要由光源与物体的相对位置决定。
在 Ant Design 中不同的阴影方向使用在不同的地方:
- 阴影向下:主要应用于组件内部或组件本身,是比较常规场景的用法
- 阴影向上:主要应用于底部导航或工具栏等
- 阴影向左:主要应用于右边导航栏、抽屉组件或固定表格栏
- 阴影向右:主要应用于左边导航栏、抽屉组件或固定表格栏
阴影是模拟的真实世界的反馈Ant Design 为了更符合真实阴影,在 4.0 中采用了三层阴影的表达方式,让阴影更柔和,更符合真实状态
<div>
<img class="preview-img no-padding" src="https://gw.alipayobjects.com/mdn/rms_08e378/afts/img/A*1oijTJh2HEIAAAAAAAAAAABkARQnAQ" alt="阴影值">
</div>
### 常用阴影设计表
**第一层:**
<table>
<thead>
<tr>
<th>阴影类型</th>
<th>阴影颜色rgba</th>
<th>方向X, Y</th>
<th>模糊度Blur</th>
<th>扩展值Spread</th>
</tr>
</thead>
<tbody>
<tr>
<td rowSpan="3">@shadow-1-up</td>
<td>rgba(0, 0, 0, 0.16)</td>
<td>0px, -1px</td>
<td>2px</td>
<td>-2px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.12)</td>
<td>0px, -3px</td>
<td>6px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.09)</td>
<td>0px, -5px</td>
<td>12px</td>
<td>4px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-1-down</td>
<td>rgba(0, 0, 0, 0.16)</td>
<td>0px, 1px</td>
<td>2px</td>
<td>-2px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.12)</td>
<td>0px, 3px</td>
<td>6px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.09)</td>
<td>0px, 5px</td>
<td>12px</td>
<td>4px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-1-left</td>
<td>rgba(0, 0, 0, 0.16)</td>
<td>-1px, 0px</td>
<td>2px</td>
<td>-2px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.12)</td>
<td>-3px, 0px</td>
<td>6px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.09)</td>
<td>-5px, 0px</td>
<td>12px</td>
<td>4px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-1-right</td>
<td>rgba(0, 0, 0, 0.16)</td>
<td>1px, 0px</td>
<td>2px</td>
<td>-2px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.12)</td>
<td>3px, 0px</td>
<td>6px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.09)</td>
<td>5px, 0px</td>
<td>12px</td>
<td>4px</td>
</tr>
</tbody>
</table>
**第二层:**
<table>
<thead>
<tr>
<th>阴影类型</th>
<th>阴影颜色rgba</th>
<th>方向X, Y</th>
<th>模糊度Blur</th>
<th>扩展值Spread</th>
</tr>
</thead>
<tbody>
<tr>
<td rowSpan="3">@shadow-2-up</td>
<td>rgba(0, 0, 0, 0.12)</td>
<td>0px, -3px</td>
<td>6px</td>
<td>-4px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.08)</td>
<td>0px, -6px</td>
<td>16px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.05)</td>
<td>0px, -9px</td>
<td>28px</td>
<td>8px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-2-down</td>
<td>rgba(0, 0, 0, 0.12)</td>
<td>0px, 3px</td>
<td>6px</td>
<td>-4px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.08)</td>
<td>0px, 6px</td>
<td>16px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.05)</td>
<td>0px, 9px</td>
<td>28px</td>
<td>8px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-2-left</td>
<td>rgba(0, 0, 0, 0.12)</td>
<td>-3px, 0px</td>
<td>6px</td>
<td>-4px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.08)</td>
<td>-6px, 0px</td>
<td>16px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.05)</td>
<td>-9px, 0px</td>
<td>28px</td>
<td>8px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-2-right</td>
<td>rgba(0, 0, 0, 0.12)</td>
<td>3px, 0px</td>
<td>6px</td>
<td>-4px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.08)</td>
<td>6px, 0px</td>
<td>16px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.05)</td>
<td>9px, 0px</td>
<td>28px</td>
<td>8px</td>
</tr>
</tbody>
</table>
**第三层:**
<table>
<thead>
<tr>
<th>阴影类型</th>
<th>阴影颜色rgba</th>
<th>方向X, Y</th>
<th>模糊度Blur</th>
<th>扩展值Spread</th>
</tr>
</thead>
<tbody>
<tr>
<td rowSpan="3">@shadow-3-up</td>
<td>rgba(0, 0, 0, 0.08)</td>
<td>0px, -6px</td>
<td>16px</td>
<td>-8px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.05)</td>
<td>0px, -9px</td>
<td>28px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.03)</td>
<td>0px, -12px</td>
<td>48px</td>
<td>16px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-3-down</td>
<td>rgba(0, 0, 0, 0.08)</td>
<td>0px, 6px</td>
<td>16px</td>
<td>-8px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.05)</td>
<td>0px, 9px</td>
<td>28px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.03)</td>
<td>0px, 12px</td>
<td>48px</td>
<td>16px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-3-left</td>
<td>rgba(0, 0, 0, 0.08)</td>
<td>-6px, 0px</td>
<td>16px</td>
<td>-8px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.05)</td>
<td>-9px, 0px</td>
<td>28px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.03)</td>
<td>-12px, 0px</td>
<td>48px</td>
<td>16px</td>
</tr>
<tr>
<td rowSpan="3">@shadow-3-right</td>
<td>rgba(0, 0, 0, 0.08)</td>
<td>6px, 0px</td>
<td>16px</td>
<td>-8px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.05)</td>
<td>9px, 0px</td>
<td>28px</td>
<td>0px</td>
</tr>
<tr>
<td>rgba(0, 0, 0, 0.03)</td>
<td>12px, 0px</td>
<td>48px</td>
<td>16px</td>
</tr>
</tbody>
</table>