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img-fit

v1.0.2

Published

web端图片自定义优化显示

Downloads

2

Readme

Web端图片自适应显示

思路来自于小程序image组件

如何使用

传统引入

<script src="./lib/index.js"></script>

npm 引入

npm i img-fit

require('img-fit')

示例

<img src="../sheep.png" mode="scaleToFill" />

img参数

| 参数 | 类型 | 默认值 | 必填 | 说明 | | :----: | :-----: | :----: | :--: | :---: | | mode | String | '' | N | 显示类型,详情见以下描述 | | width | String | 300px | N | 宽度| | height | String | 220px | N | 高度 |

mode 参数

| 字段 | 说明| | :---: | :---: | | scaleToFill | 缩放模式,不保持纵横比缩放图片,使图片的宽高完全拉伸至填满 img 元素 | |aspectFit | 缩放模式,保持纵横比缩放图片,使图片的长边能完全显示出来。也就是说,可以完整地将图片显示出来。| |aspectFill| 缩放模式,保持纵横比缩放图片,只保证图片的短边能完全显示出来。也就是说,图片通常只在水平或垂直方向是完整的,另一个方向将会发生截取。| | widthFix | 缩放模式,宽度不变,高度自动变化,保持原图宽高比不变| | top| 裁剪模式,不缩放图片,只显示图片的顶部区域| | bottom| 裁剪模式,不缩放图片,只显示图片的底部区域| | center | 裁剪模式,不缩放图片,只显示图片的中间区域| | left | 裁剪模式,不缩放图片,只显示图片的左边区域 | | right | 裁剪模式,不缩放图片,只显示图片的右边区域 | | topLeft | 裁剪模式,不缩放图片,只显示图片的左上边区域 | | topRight | 裁剪模式,不缩放图片,只显示图片的右上边区域 | |bottomLeft | 裁剪模式,不缩放图片,只显示图片的左下边区域 | | bottomRight | 裁剪模式,不缩放图片,只显示图片的右下边区域 |

效果展示

原图

image

scaleToFill

image

aspectFit

image

aspectFill

image

widthFix

image

top

image

bottom

image

center

image

left

image

right

image

topLeft

image

topRight

image

bottomLeft

image

bottomRight

image