/**
 * Specifies possible values for alignment of viewport.
 */
export declare enum ViewportAlignment {
    /**
     * Viewport is positioned in the middle of the bottom side.
     */
    centerBottom = 5,
    /**
     * Viewport is positioned in the center of the viewer.
     */
    centerCenter = 4,
    /**
     * Viewport is positioned in the middle of the top side.
     */
    centerTop = 3,
    /**
     * Viewport is positioned in the left bottom corner.
     */
    leftBottom = 2,
    /**
     * Viewport is positioned in the middle of the left side.
     */
    leftCenter = 1,
    /**
     * Viewport is positioned in the left top corner.
     */
    leftTop = 0,
    /**
     * Viewport is positioned in the right bottom corner.
     */
    rightBottom = 8,
    /**
     * Viewport is positioned in the middle of the right side.
     */
    rightCenter = 7,
    /**
     * Viewport is positioned in the right top corner.
     */
    rightTop = 6
}