如何从agm-map中清除多边形？

Question

单击clear按钮时，如何从地图中清除多边形。

<agm-map [latitude]="40.034989"
         [longitude]="29.062844"
         [zoom]="15"
         [agmDrawingManager]="drawing"
         class="full-width-height">
    <agm-drawing-manager #drawing="agmDrawingManager"
                         [drawingMode]="'polygon'"></agm-drawing-manager>
</agm-map>
<button mat-mini-fab>
    <mat-icon (click)="onClearButtonClicked()">close</mat-icon>
</button>

Answer 1

我已经解决了！overlay.setMap(null)有效！

   public onOverlayComplete(e: any) {
        this.mArea = e.overlay;
    }

    public onClearButtonClicked() {
        this.mArea.setMap(null);
    }