/image-rotation

Help the image complete compression and support rotation operations at any angle.

Primary LanguageTypeScript

image-rotation

This module can help the image complete compression and support rotation operations at any angle.

Installation

  yarn add image-rotation

Usage

let imageRotate
import ImageRotation from 'image-rotation'
imageRotate = new ImageRotation('your html file data', options)
imageRotate.generate('rotate angle', downloadType) //

APIs

new ImageRotation

key desc type defalut
file(required) input[type=file] data File or base64 null
options options object {}

options(object)

key desc type defalut
maxLength The maximum edge size number null
quality compression quality number 0.92
background background string null
isDrawPngBg whether to draw background for image/png boolean false 
import ImageRotation from 'image-rotation'
const imageRotate = new ImageRotation('your html file data', {
  maxLength: 2000,
  quality: 0.8,
  background: "#fff",
  isDrawPngBg: true
})

generate(rotate?: number, downloadType?: DownloadType): Promise

key desc type defalut
rotate rotation angle Number 0
downloadType image type string image/jpeg 
const imageRotate = new ImageRotation('your html file data')
imageRotate.generate(45, 'image/png').then(res=> {
  // base64
}).catch()

toBlob(dataURI: string): Blob

key desc type
dataURI(required) base64 file string 
const imageRotate = new ImageRotation('your html file data')
imageRotate.generate(0, 'image/png').then(res=> {
  // base64
  const blob = imageRotate.toBlob(res)
  // blob
})