如何以编程方式触发自定义事件？

Question

以下是使用cdkDrag使其可拖动的项目的代码。

...

<div class="example-boundary">
  <div class="example-box" cdkDragBoundary=".example-boundary" cdkDrag #dragitem>
    I can only be dragged within the dotted container
  </div>
</div>

...

import {Component} from '@angular/core';

/**
 * @title Drag&Drop boundary
 */
@Component({
  selector: 'cdk-drag-drop-boundary-example',
  templateUrl: 'cdk-drag-drop-boundary-example.html',
  styleUrls: ['cdk-drag-drop-boundary-example.css'],
})
export class CdkDragDropBoundaryExample {}

...

是否有一种方法可以使用cdkDrag API或其他类似方法以编程方式将拖动事件触发到特定位置？？

类似这样的东西：

@ViewChild('dragitem') dragItemRef: ElementRef

someMethod() {
this.dragItemRef.fire('dragmove', {x: 30, y: 120})

//or this.dragItemRef.dispatchEvent('dragmove', {x: 30, y: 120})
}