详细AngularJs4的图片剪裁组件的实例

import * as Cropper from 'cropperjs';

var image = <HTMLImageElement>document.getElementById('image');
var cropper = new Cropper(image, {
 aspectRatio: 16 / 9,
 crop: function(e) {
  console.log(e.detail.x);
  console.log(e.detail.y);
  console.log(e.detail.width);
  console.log(e.detail.height);
  console.log(e.detail.rotate);
  console.log(e.detail.scaleX);
  console.log(e.detail.scaleY);
 }
});

import {Component, Input, AfterViewInit, ViewEncapsulation} from '@angular/core';
import * as Cropper from 'cropperjs';

@Component({
 selector: 'cropper',
 templateUrl: './cropper.component.html',
 styleUrls: ['./cropper.component.less'],
 encapsulation: ViewEncapsulation.None
})

 <input type="file" accept="image/jpeg" (change)="getImgUrl($event)">

 getImgUrl($event) {
  this.cropper.replace(window.URL.createObjectURL($event.path[0].files[0])) ;
  console.log($event);
 }

<button (click)="rotateRight()">rotate</button>

 rotateRight() {
  console.log(this.cropper.getData());
  this.cropper.rotate(90);
 }