import type { BaseBehaviorOptions, RuntimeContext, ShortcutKey } from '@antv/g6';
import { BaseBehavior } from '@antv/g6';
/**
 * <zh/> 观察 3D 画布交互配置项
 *
 * <en/> Observe 3D canvas options
 */
export interface ObserveCanvas3DOptions extends BaseBehaviorOptions {
    enable?: boolean;
    /**
     * <zh/> 相机模式
     * - `orbiting` 固定视点(`focalPoint`)，改变相机位置。不能跨越南北极
     * - `exploring` 固定视点(`focalPoint`)，改变相机位置。可以跨越南北极
     * - `tracking` 第一人称模式，固定相机位置，改变视点(`focalPoint`)位置
     *
     * <en/> Camera mode
     * - `orbiting` Fixed viewpoint(`focalPoint`), change camera position. Cannot cross the north and south poles
     * - `exploring` Fixed viewpoint(`focalPoint`), change camera position. Can cross the north and south poles
     * - `tracking` First-person mode, fixed camera position, change viewpoint(`focalPoint`) position
     */
    mode?: 'orbiting' | 'exploring' | 'tracking';
    /**
     * <zh/> 按下该快捷键配合指针观察场景
     *
     * <en/> Press this shortcut key to observe the scene with the pointer
     */
    trigger?: ShortcutKey;
    /**
     * <zh/> 灵敏度
     *
     * <en/> Sensitivity
     */
    sensitivity?: number;
}
/**
 * <zh/> 3D 场景控制器，提供缩放、平移、旋转等能力
 *
 * <en/> 3D scene controller, providing zoom, pan, rotate and other capabilities
 */
export declare class ObserveCanvas3D extends BaseBehavior<ObserveCanvas3DOptions> {
    static defaultOptions: Partial<ObserveCanvas3DOptions>;
    private shortcut;
    private get camera();
    constructor(context: RuntimeContext, options: ObserveCanvas3DOptions);
    update(options: Partial<ObserveCanvas3DOptions>): void;
    private setCameraType;
    private getRatio;
    private onDrag;
    private bindEvents;
    destroy(): void;
}